Manual Skoda Octavia 1,9 66kW
Manual Skoda Octavia 1,9 66kW
Manual Skoda Octavia 1,9 66kW
The Service Manual is intended only for use within the koda Organisation; it is not permitted to pass it onto third persons. 1998 KODA AUTO a. s.
Printed in CR
Service
List of Supplements to OCTAVIA Workshop Manual
Edition: 04.04
Subject
Basic Edition Supplement to Basic Edition Modifications to Engines from 08.97 Supplement for 4 x 4 Models Modifications to Repair Groups 10, 13, 15, 19, 21, 26 Modifications to Vehicles MJ01 Modifications to Repair Groups 00, 10, 13, 15, 17, 19, 20 Modifications to Repair Groups 10, 13, 15, 17, 19, 21, 26
Article Number S00.5110.50.20 S00.5110.51.20 S00.5110.52.20 S00.5110.53.20 S00.5110.54.20 S00.5110.55.20 S00.5110.56.20 S00.5110.57.20
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Printed in CR S00.5110.57.20
OCTAVIA
00 Technical Data
Contents
Service
Page
Technical data .............................................................................................................................. - Engine number ......................................................................................................................... - Engine features ........................................................................................................................ Removing and installing engine ................................................................................................ - Removing engine ..................................................................................................................... - Attaching engine to repair stand ............................................................................................... - Installing engine ........................................................................................................................ - Tightening torques .................................................................................................................... - Aligning engine/gearbox mounting ........................................................................................... - Engine/gearbox mounting ........................................................................................................ Disassembling and assembling engine .................................................................................... - Removing and installing ribbed V-belt ...................................................................................... - Removing and installing toothed belt ....................................................................................... - Inspecting semi-automatic toothed belt tensioning pulley ........................................................ - Rotating crankshaft to TDC when engine removed .................................................................
10
10-1 10-1 10-12 10-12 10-14 10-15 10-16 13-1 13-1 13-4 13-11 13-11
Page
13
Crank Assembly
Page
Disassembling and assembling pistons and connecting rod ................................................ - Inspecting piston projection at TDC .........................................................................................
Removing and installing crankshaft .......................................................................................... - Replacing crankshaft seal -belt pulley side- ............................................................................. - Removing and installing flywheel ............................................................................................. - Removing and installing driven plate ........................................................................................ - Removing and installing front sealing flange ............................................................................
13-21 13-24
15
Removing and installing cylinder head ..................................................................................... - Removing cylinder head ........................................................................................................... - Installing cylinder head ............................................................................................................. - Testing compression ................................................................................................................
Servicing valve gear .................................................................................................................... - Grinding in valve seats ............................................................................................................. - Inspecting valve guides ............................................................................................................ - Replacing valve stem seals ...................................................................................................... - Removing and installing camshaft ........................................................................................... - Inspecting hydraulic bucket tappets ......................................................................................... - Replacing valve guides .............................................................................................................
15-10 15-12 15-14 15-14 15-16 15-18 15-19 17-1 17-2 17-3 17-5
Page
17
Lubrication System
Removing and installing parts of the lubrication system ....................................................... - Disassembling and assembling oil filter holder ........................................................................ - Removing and installing oil pan ................................................................................................ - Testing oil pressure and oil pressure switch .............................................................................
Page
------------ I ------------
19
Service
Cooling System
OCTAVIA
19-1 19-2 19-2.2 19-2.4 19-3 19-5 19-7 19-8 19-9 19-12 20-1 20-1 20-2 20-3 20-3 20-4 20-4
Removing and installing parts of the cooling system ............................................................. - Parts of the cooling system fitted to body ................................................................................. - Parts of the cooling system attached to engine ........................................................................ - Connection diagram for coolant hoses ..................................................................................... - Draining and filling system with coolant ................................................................................... - Removing and installing coolant pump ..................................................................................... - Removing and installing coolant thermostat ............................................................................. - Inspecting cooling system for leaks ......................................................................................... - Removing and installing radiator .............................................................................................. - Removing and installing fan ..................................................................................................... Removing and installing parts of the fuel supply system ....................................................... - Removing and installing fuel tank with attached parts ............................................................. - Removing and installing fuel cooler .......................................................................................... - Safety precautions when working on fuel supply system ......................................................... - Rules for cleanliness ................................................................................................................ - Removing and installing fuel gauge sender ............................................................................. - Removing and installing fuel tank .............................................................................................
Page
20
Page
Removing and installing parts of the fuel supply system - 4 x 4 models .............................. - Removing and installing fuel tank with attached parts - 4 x 4 models ...................................... - Removing and installing fuel gauge sender - 4 x 4 models ...................................................... - Removing and installing fuel tank - 4 x 4 models .....................................................................
21
Turbocharging
Charge air system with turbocharger ........................................................................................ - Rules for cleanliness ................................................................................................................ - Removing and installing turbocharger for the engine AGR with attached parts ....................... - Removing and installing turbocharger for the engine ALH with attached parts ....................... - Connection diagram of charge pressure control ...................................................................... - Testing charge pressure control valve pressure unit ................................................................ - Removing and installing turbocharger ...................................................................................... - Removing and installing parts of the charge air cooling system .............................................. - Removing and installing charge air cooler ............................................................................... Removing and installing parts of the exhaust system ............................................................ - Replacing centre silencer or rear silencer ................................................................................ - Aligning exhaust system free of stress ..................................................................................... Removing and installing parts of the exhaust system - 4 x 4 models ................................... - Replacing centre silencer or rear silencer - 4 x 4 models ........................................................ Exhaust gas recirculation system ............................................................................................. - Connection diagram of exhaust gas recirculation control ........................................................ - Testing mechanical exhaust gas recirculation valve ................................................................ - Removing and installing parts of the exhaust gas recirculation system ...................................
21-1 21-1 21-2 21-3.1 21-4 21-5 21-6 21-9 21-10 26-1 26-2 26-3 26-5 26-5 26-7 26-8
Page
26
Exhaust system
Page
26-4.1 26-4.2
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OCTAVIA
Technical Data
Technical data
Engine number
K The engine number (engine code and serial number) is located at the front at the connection of the engine/gearbox. In addition, a sticker with engine code and serial number is affixed to the toothed belt guard. The engine code is also indicated on the vehicle data stickers.
00
Engine features
Engine code Manufactured Displacement Power output Torque Bore Stroke 10.96 66/4000 79.5 1.896 AGR 08.00 66/3750 79.5 1.896 ALH
Nm at rpm
kW at rpm
mm mm
210/1900 95.5 49
210/1900 95.5 49
min. CN
Compression ratio
Injection order
EU2
yes
yes
EU3
yes
yes
OCTAV1A
10
Removing
Notes: The engine is removed downwards together with the gearbox.
All cable straps that have to be loosened when the engine was removed must be fitted again in the same location. The hose connections are secured with screw-type clips, spring-type clips or clamptype clips. Always replace clamp-type clips with springtype clips or screw -type clips.
Fuel lines at the engine must only be secured with spring-type clips. The use of clamp-type or screw-type clips is not allowed. Use pliers for spring strap clips for installing the spring strap clips.
10
OCTAVIA
Pay attention to the correct assignment of the connectors; mark if necessary. Procedure KPay attention to code of vehicles fitted with a coded radio set; determine if necessary. Switch off ignition (if not already off) and disconnect earth strap at the battery. Remove engine trim panel: Lift out plug -1- and slacken nuts -arrows-. Pull clip -2- off pin -3-.
Raise vehicle with lift platform; pay attention to the following points:
K The arms of the lift platform must be positioned only below the side members. Warning!
On no account may the arms of the lift platform be positioned below the sills, the front or rear suspension.
K The two front jacking points are located at the side members at the front at the level of the marking on the sill. Warning!
Never start the engine when the vehicle is raised and engage a gear so long as only one driven gear is making contact with the ground.
OCTAVIA
10
K The two rear jacking points are located at the rear longitudinal members at the level of the marking at the sill.
K-
Remove noise insulation panel in the middle and also on the left and right -arrows-.
K-
Open cap of coolant expansion reservoir. Turn drain plug -arrow- at the radiator to the left or fit hose onto connection, as appropriate.
10
OCTAVIA
K-
In addition, detach coolant hose at bottom of oil cooler -arrow- and allow remaining coolant to flow out.
K-
Detach air guide hose -1-. Detach vent hose -3- and connector for air mass meter -2-. Slacken bolts -4- and -5- and remove air filter housing.
K-
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5-----------------------
OCTAVIA
K-
K-
K-
All models
10
10
OCTAVIA
Models fitted with manual gearbox KMark installation position of the shift cable -B- relative to the gearbox shift lever. Take off balancing weight -A- and shift cable -B- at shift lever. Pull selector cable off relay lever driver -C-; raise lug in direction of arrow for this step. Unclip hose line of slave cylinder at cable support.
K-
Take cable support of gearbox -arrow- and place down to the side.
K-
Remove slave cylinder -arrow- and place down to the side, secure with wire, do not open line system.
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T -----------------------
OCTAVIA
KKK-
10
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10
K-
4-
3-
OCTAVIA
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T
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OCTAVIA
K-
K-
K-
Before removing the ribbed V-belt, mark direction of running. If an already used belt is fitted on to run in the opposite direction, it may be destroyed. When installing the belt, ensure that it is correctly located in the belt pulleys. Note:
10
10
OCTAVIA
Refrigerant circuit of air conditioning system must not be opened. KRemove AC compressor and tie up with wire at the towing eye -arrow- together with the connected hoses.
Note:
Continued for all models KRemove pendulum support -arrow-. Unbolt drive shafts from the flange of the gearbox and attach to body with wire.
4 x 4 models Detach propeller shaft from gearbox Gearbox 02C, Repair Group 39.
Models with heavy-duty cooling system Remove right-hand electric fan (smaller fan wheel diameter) page 19-12.
Continued for all models KRemove front part of exhaust system page 26-1. Attach engine holder T10012 to cylinder block with nut and M10 bolt; tighten to 40 Nm. Raise engine and gearbox slightly with engine/gearbox lifter.
OCTAVIA
Note:
Use a ladder, e.g. V.A.S 5085, to remove the bolts attaching the engine and gearbox brackets. K-
K-
Note:
It is essential to have a second person guide the engine/gearbox assembly when lowering it in order to avoid any damage to the body because of the tight clearance. At the same time, ensure that the boots of the joint shafts are not damaged. Models fitted with automatic gearbox K-
# 5 0 ) # ! ! 6 ! # 2 4 # 8 ! 1 6 ! # 2 ( ! 10 ! 1 # # # $ 0 0 7 0 ! %) ' & # # # % 0 ) " #! # 3 0 ) ) 0 5
10
------------ 10-11 ------------
10
The engine should be attached with the engine holder MP 1-202 to the repair stand for carrying out removal and installation operations. Note:
The engine must not be attached to the repair stand for measuring the cylinder bore page 13-23. K-
Installing Notes:
Installation is carried out in the reverse order; pay attention to the following points: Check whether dowel sleeves for centering engine/gearbox are inserted in the cylinder block.
K-
X 9 # 8 H A % 5 Y C 8 A X # A % P C Y C W @ 8 5 A7 % A A # 8 % % A 4 ' 4 ' 0 D 4 # A % V ( ( ( 5 5 C 8 % H % A % A 1 # 8) A % % A 4 ' 4 ' T D 4 8 % % H A % ! ( 8 % A 3 A U @ % 9 % A A ' 49 6 E @ 8 % 6 89 8 # A @ # S 8 % % ) 3 S ' $ 4 ' 5 ( 7 # A 9 )3 A (! ( % #9 R A 3 P Q I H % % ( T 3 H % % 4 G 9 8 A % E & ' $ D 5 " % ) % 3 4 ' & 1 0 2 ( $ @ 89 83 7 !G 9 8 A 3 % E & ' $ D 5 7 " % ) % 3 4 ' & 1! 0 2 ( $ @ 8 8 " C 0 @ 8 A % A9 3 A A ) A ( 9 8F ! % & 6 ' 0 5 " % % % ) 3 4F 'B9 & 1 0! 2 ( $ # 99 # ! # 3 C 7 # 3 7 3
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OCTAVIA
Do not re-use drained coolant if the cylinder block, cylinder head, cylinder head gasket, radiator, or heat exchanger, has been replaced. Note: Continued for all models Models fitted with air conditioning Models fitted with automatic gearbox
10
10
OCTAVIA
Hoses and valves to mechanical exhaust gas recirculation valve, charge pressure control and intake manifold flap valve (N239) page 21-4, Connection diagram for charge pressure control page 26-5; Connection diagram for exhaust gas recirculation system. - Electrical connections and routing of cables: Current Flow Diagrams, Electrical Fault Finding, Fitting Locations. Note: If the battery earth strap is disconnected and re-connected, it is then necessary to carry out additional Operations Electrical System: Repair Group 27. - Inspecting engine oil level: Inspection and Maintenance
Tightening torques
Notes: Tightening torques apply only to nuts and bolts which are lightly greased, oiled, phosphatized or blackened. Additional lubricants such as engine or gear oils are permissible, but not Molykote. Tolerance of tightening torques 15 % Component Nuts/bolts M6
M7 M10 M8
In variation of this:
M12
Bolts connecting engine to gearbox 5-speed Manual Gearbox 02J; Repair Group 34 Automatic Gearbox; Repair Group 37
page 10-16
OCTAVIA
10
K Gearbox mounting The edges -a- and -b- must be parallel to each other.
10
OCTAV1A
Assembly bracket
Tightening torques K Engine assembly bracket 2140 Nm + 90 (1/4 turn) - replace 25 Nm 60 Nm + 45 (1/8 turn) - replace
3-
3-
K Pendulum support 23140 Nm + 90 (1/4 turn) - replace 20 Nm + 90 (1/4 turn) - replace 40 Nm + 90 (1/4 turn) - replace
OCTAVIA
Crank Assembly
13
Before removing the ribbed V-belt, mark the direction of running. If an already used belt is fitted on again to run in the opposite direction, it may be destroyed. When installing the belt, ensure it is correctly located in the belt pulleys. 1 - Ribbed V-belt removing and installing page 13-3 2 - 25 Nm
13
Crank Assembly
OCTAVIA
K Fig. 1
K Fig. 2
K Fig. 3
3 - Guide pulley
OCTAVIA
Crank Assembly
K-
" ! ! "
13
AC To facilitate the positioning of the AC compressor, drive the threaded bushings -B- for fixing screws -A- slightly backwards in direction of the arrow. Tighten bolts to 45 Nm. Note: On vehicles fitted with AC remove guide pulley for ribbed V-belt with belt pulley Fig. 3 page 13-2. Remove noise insulation on bottom right. Remove air guide pipe between charge air cooler and turbocharger page 21-9, item. 9. Position flat ring spanner SW 16 on hexagon of tensioning pulley. Swivel tensioning pulley in direction of arrow in order to slacken the ribbed V-belt. Remove ribbed V-belt. Raise tensioning pulley for ribbed V-belt with flat ring spanner SW 16 and fit ribbed V-belt.
------------ 13-3 ------------
Crank Assembly
OCTAV1A
Note:
Mark the direction of running of the toothed belt before removing it. If an already used belt is fitted on again to run in the opposite direction, it may be destroyed. Special tools, testers and aids required Torque wrench Counterholder MP 1-216
Locking pin 3359 Adjusting straightedge MP 1-312 Wrench for toothed belt-tensioning pulley (e.g. Matra V159, Hazet 2587 or Stahlwille 127-17) Supporting device MP 9-200 Feeler gauges Puller T40001 with hook T40001/2 and T40001/3
OCTAVIA
1 - 120 Nm + torque a further turn (90) Use counterholder MP 1-310 or lever T30004 for slackening and tightening Always replace Thread and contact surface must be free of oil and grease Torquing further by 90 can be carried out in several stages 2 - 40 Nm + torque a further turn (90) Always replace Torquing further by 90 can be carried out in several stages 3 - 15 Nm 4 - 23 Nm 5 - 22 Nm 6 - Bottom toothed belt guard 7 - 10 Nm 8 - Middle toothed belt guard 9 - 45 Nm 10 - Engine support 11 - Top toothed belt guard 12 - Toothed belt Mark direction of running before removing Inspect for wear Do not kink Removing and installing page 136 13 - Guide pulley From 08.97 14 - 20 Nm + torque a further turn (90) Replace Torquing further by 90 can be carried out in several stages 15 - 20 Nm 16 - Bolt for guide pulley 17 Nm with mounting bracket -item 31-; Part No. 038 903 143 E/F 20 Nm with mounting bracket -item 31-; Part No. 038 903 143 A/B 17 - 45 Nm Hold camshaft sprocket with counterholder MP 1-216 for slackening and tightening
Crank Assembly 18 - Camshaft sprocket Use special tool T40001 for pulling off taper of camshaft 19 - Semi-automatic tensioning pulley Inspecting semi-automatic toothed belt tensioning pulley page 13-11 Fitting location Fig. 1 20 - Guide pulley 21 - 30 Nm 22 - Rear toothed belt guard Insert at lower edge behind sealing flange at front 23 - Injection pump gear From 08.97 24 - Injection pump gear Up to 07.97 25 - Coolant pump Removing and installing page 19-5 26 - Guide pulley Unbolt in order to remove coolant pump 27 - Crankshaft toothed belt sprocket There must not be any oil on contact surface between toothed belt sprocket and crankshaft Fitting location: flats on toothed belt sprocket and crankshaft must be aligned 28 - Bush 29 - Nut Insert into bush -item 2830 - Injection pump On no account slacken central nut -arrow Removing and installing 1.9-ltr./66 kW (TDI) Engine, Fuel Injection and Glow Plug System; Repair Group 23 31 - 45 Nm 32 - Mounting bracket For models without AC For injection pump, alternator and hydraulic pump
13
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13
Crank Assembly
OCTAV1A
K Fig. 1
The holding claw -arrow- must engage in the recess on the rear toothed belt guard.
Removing toothed belt Engine installed in the vehicle Remove right headlights Electrical System; Repair Group 94, Removing and installing headlights. Remove engine cover page 10-2. Remove plug from the intake manifold pressure sender (G71) and intake manifold temperature sender (G72). Remove the air guide pipe between the charge air cooler and the intake manifold. Unbolt coolant expansion reservoir and place to the side. Unbolt power steering reservoir and place to the side. Unbolt washer fluid reservoir and place to the side. Unbolt fuel filter and place to the side. Remove the noise insulation. Remove the air guide pipe between the charge air cooler and the exhaust turbocharger page 21-9. Remove top toothed belt guard and cylinder head cover. Remove vacuum pump for brake servo unit page 15-3. Remove the V-ribbed belt page 13-1.
OCTAVIA
Crank Assembly Engine installed KRotate crankshaft to TDC of cylinder 1 -arrow-. Check whether TDC marking on flywheel and driven plate with reference mark are aligned -arrow-. I - Manual gearbox II - Automatic gearbox Note: Rotating crankshaft to TDC of cylinder 1 with the engine removed page 13-11.
13
Continued for all models KLock camshaft position with setting straightedge MP 1-312.
Note: The valves of cylinder 1 must be closed and the valves of cylinder 4 at overlap -arrows-. Centre setting straightedge as follows: Rotate locked camshaft until one end of the straightedge strikes the cylinder head. Use a feeler gauge to measure the gap produced at the other end of the straightedge. Insert a feeler gauge of half this value between straightedge in cylinder head. Now, rotate camshaft until the straightedge is resting on the feeler gauge. Insert the second feeler gauge with the same value between straightedge in cylinder head. Lock injection pump gear with locking pin 3359.
Note: Always moisten locking pin with oil. It is recommended to use a mirror for inserting the locking pin. KSlacken bolts -1- attaching injection pump gear and replace with new bolts. Tighten bolts lightly so that it is still possible to rotate the gear.
Note: On no account, slacken central nut -2- of the injection pump gear otherwise this will alter the basic setting of the injection pump and it can no longer be set with workshop tools.
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13
Crank Assembly
K-
K-
K-
To slacken the front bolt of the engine mounting bracket, raise engine slightly with spindle of supporting device MP 9-200.
Note:
When slackening and tightening camshaft sprocket, never use adjusting straightedge as a counterholder. Counterhold camshaft sprocket with special tool MP 1-216.
Warning!
-A-
OCTAVIA
OCTAVIA
Crank Assembly Fix in position the bolt for attaching the camshaft sprocket (camshaft sprocket can still be rotated). Align injection pump gear to centre position in the slots. Fit toothed belt onto crankshaft toothed belt sprocket, guide pulley, coolant pump, injection pump gear and tensioning pulley (pay attention to direction of running). Use nut turner (e.g. Matra V159) to turn tensioning pulley to the right until the notch and raised section -arrows- are opposite each other. Tighten the clamping nut at the tensioning pulley to a final torque of 20 Nm. Once again check whether TDC marking on the flywheel and reference mark are aligned. Tighten bolt for attaching camshaft sprocket and torque finally to 45 Nm. Counterhold camshaft sprocket with MP1-216.
13
K-
K-
Replace bolts for attaching injection pump gear -arrows- and tighten to a final torque of 20 Nm. Remove adjusting straightedge. Remove locking pin 3359. Rotate crankshaft a further two revolutions in direction of rotation of engine and position again at TDC of cylinder 1. Check whether it is possible to block the injection pump gear with locking pin 3359.
If it is not possible to block the injection pump gear: Rotate crankshaft until it is possible to block the injection pump gear with locking pin 3359. Block injection pump gear with locking pin 3359. Slacken bolts for attaching injection pump gear. Rotate crankshaft until the help marking on the flywheel is aligned with the edge of the adjusting device.
9 ( $ ! F ! I 6 $ $ @@ 9 $ ! ! U R S R T F P D ! ! ! # I F @ 3 H G ! H ! G 4 ! $ ! # 9 ! 4 C ! ! 4 F ( ! E ! $ 5 $ 1 1 D ! 2 9 Q ! D 3 6 ! $ $ 7 $ # 3 3 4 2 911 9 3 B7 C 1 ( ! A $ $ 7 " 0 1 4 1# 7 # & 5@1 $ !# 9 1 ! 1 ! 0 ! #1 ( & $ 3 ' ' # 8 3 4 2 7 3 6 ( 5 5 4 ( 99 ' 1 " 1 & $% ' 7 ! % # %11#7 7 7 007 117 )7 @ @ #9 ) 1 9
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13
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Crank Assembly
OCTAVIA
OCTAV1A
Crank Assembly Install the noise insulation. Install right headlights Electrical System; Repair Group 94, Removing and installing headlights.
13
Dynamically test and set commencement of injection: 1.9l/66 kW (TDI) Engine, Fuel Injection and Glow Plug System, Repair Group 23; Dynamically test and set commencement of injection.
The engine is lying on the work surfaces (vehicles with manual gearbox): For vehicles 07.97 KScrew in adjusting device for TDC MP 1-313 according to the illustration.
13
Crank Assembly -
OCTAVIA
Set adjusting device to 96 mm -arrow- (the left-hand notch of the vernier -arrow A- is the reference point). Rotate crankshaft until TDC marking -arrow B- on the flywheel is aligned with the edge of the adjusting device.
Models 08.97 KScrew in adjusting device for TDC MP 1-313, as shown in the illustration. Set adjusting device to 100.4 mm -arrow(the left-hand notch of the vernier -arrow Ais the reference point). Rotate crankshaft until TDC marking -arrow B- on the flywheel is aligned with the edge of the adjusting device.
Engine attached to engine holder MP 1-202 Models 07.97 KPlace flexible steel rule (marking tool) on circumference of flywheel. Measure exactly 100 mm from the TDC marking -arrow A- and make a help marking -arrow B- with the marking tool.
K-
Screw in adjusting device for TDC MP 1-313, as shown in the illustration. Set adjusting device to 91.4 mm -arrow- (the left-hand notch of the vernier -arrow A- is the reference point).
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Rotate crankshaft the Rotate crankshaft Rotate crankshaft the on the of of the the the the s an as as the
------------ 13-1
OCTAVIA
Crank Assembly
K-
K-
K-
the
on of the
on
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13
13
------------ 13-1
OCTAVIA
K-
------------
OCTAVIA
Crank Assembly
13
------------ 13-1
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13
Note:
Servicing clutch: 5-speed Manual Gearbox 02J; Repair Group 30; Servicing clutch 1-
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Crank Assembly
OCTAVIA
and
6-
axial play of new part: 0.07....0.17 mm wear limit: 0.37 mm main bearing journal: 54.00 mm conrod bearing journal: 47.80 mm
7-
for bearing cap without lubricating groove do not mix up used bearing shells (mark)
8-
for bearing 3 pay attention for different version for cylinder block and bearing cap pay attention to locating element of washers replace
1/
9-
turn (90)
10 -
bearing cap 1: belt pulley side bearing cap 3: with recesses for thrust washers installation position: retaining lugs of bearing shells of cylinder block/bearing cap must be positioned one above the other
11 - Dowel pin inspecting projection out of crankshaft Fig. 1 rotor for wheel speed sensor
2-
12 -
13 -
3-
replace
1/
turn (90)
1 -
plate removing and installing flywheel page 13-16 removing and installing driven plate page 13-16 installation dimension for driven plate page 13-17
OCTAVIA
1
17
" # ! ( $ 6 ! ' 1 ( " & ' 4% ) " " 0 ( 3$ 5& 2%
Crank Assembly 1
13
replace
1/
plate is attached to sealing flange Fig. 2 must be located on dowel sleeves do not damage or bend when carrying out removal and installation work
Rear seal always replace complete must be located on dowel sleeves take off oil pan for removing page 17-3 clean sealing surface before installing sealing flange is supplied as replacement part with PTFE seal install seal dry, crankshaft journal must be free of grease install new sealing flange with sleeve (do not pull sleeve off seal before installing)
intermediate plate
Attach intermediate plate to the sealing flange and push it onto dowel sleeves -arrows-.
13
------------
Crank Assembly
OCTAVIA
K Fig. 3
Notes:
Do not moisten PTFE seal with oil before installing. The shaft must also be free of oil and grease. Never replace a PTFE seal (new version) with an elastomer seal (old version).
------------
OCTAVIA
Crank Assembly
K-
F ( & 4 ) ) 0 D 6 & ( ! @ 0 E ! A ! @ 0 1 @ & 0 & 9 " ' & @ " B ! A ! 7 1 ( 1 & 8 61 ' 2 2 0 & 4 0 ( & 0 & 2 4 3 ' (0 4 & & & 0C & 0 & & 0 2( 0! ( 2 & 1 & 1 0 & ) & ' 4 ( & " 2 & & )4 $ # 5 % 2 #
------------
------------
13
Crank Assembly
K-
K-
K-
Notes:
Installing
Never install an elastomer seal (old version) if a PTFE seal (new version) was fitted.
OCTAVIA
OCTAV1A
Crank Assembly Installing PTFE seal Note: The sealing lips of the seal must not be oiled or greased. KUse a clean cloth to remove oil residues on the crankshaft journal. Fit guide sleeve T10053/1 onto the crankshaft journal. Push seal over guide sleeve onto the crankshaft journal.
13
K-
Use thrust sleeve T10053 to press in seal as far as the stop. Use old central bolt of crankshaft toothed belt sprocket for this step.
Continued for both versions KInstall crankshaft toothed belt sprocket and lock with counterholder T30004 or MP 1-310.
Note:
When screwing on the counterholder MP1310 place 2 washers between the toothed belt sprocket and the counterholder. Replace central bolt for toothed belt-tensioning pulley.
When tightening the central bolt, the crankshaft must not turn. Tighten the new central bolt for toothed belt sprocket to 120 Nm + torque a further 1/4 turn (90). Install toothed belt page 13-4. Install ribbed V-belt page 13-3.
13
Crank Assembly
OCTAV1A
Note:
Fitting position of counterholder: A - for tightening B - for slackening Release bolts for flywheel.
Note: -
Replace flywheel bolts. Tighten the bolt to 60 Nm + torque a further 1/ turn (90). 4
Attach counterholder MP 1-221 with bolt M8x 45 to the drive plate. Insert two M10 nuts between the counterholder and the drive plate.
Note:
Fitting position of counterholder: A - for tightening B - for slackening Release bolts for drive plate.
OCTAVIA
Crank Assembly Installing KPosition driven plate using the washer with recesses -1-. Insert new bolts -3- and tighten to 30 Nm.
13
K-
Check installed dimension at three points of driven plate and calculate average value. Specification -a-: 19.5...21.1 mm
Note: The measurement is made through the hole of the driven plate as far as the cylinder block.
If the measurement obtained is less than the specification: KOnce again remove driven plate and fit shim -2-. Re-tighten bolts -3- to 30 Nm.
Note: Replace bolts of driven plate. Tighten bolts -3- to 60 Nm and torque a further 1/4 turn (90).
13
Crank Assembly
OCTAV1A
Note:
When screwing on the counterholder MP 1-310 place 2 washers between the toothed belt sprocket and the counterholder. KDrain engine oil. Remove oil pan page 17-3 Unscrew front sealing flange. Remove sealing flange, if necessary release by applying slight blows with a rubber-headed hammer. Remove sealant residues on cylinder block with a flat scraper. Use a rotating plastic brush to remove sealant residues on the front sealing flange (wear protective goggles). Clean sealing surfaces, they must be free of oil and grease.
OCTAVIA
Crank Assembly
K-
K-
Q R I P I ( 5 $ & 3 H ) C 4 ( 5 F $ & & 3 G C ) 1 ( !# 3 $ D EF C $# @ 3 3 B ! ! $ @ $ $ 3 4 4 # 3 A 6 3 $ 3 $ 3 2 $ 3 (# 9 5 # ### ( # 3# ## 2 # 3 2 3 & & @ # # ! ! 8 ) 1 5 5 6 3 3 7 3 3 2 4 " ( ! !# & & ' ) 0( ! $ ( ( " % # (
13
Note: The sealing flange must be installed within 5 minutes after applying the silicone sealant. Note: The sealant bead must not be thicker than 3 mm otherwise excess sealant may get into the oil pan and clog the oil intake pipe. t Notes: Use the following devices for fitting on the sealing flange with seal installed: - Elastomer seal - MP 1-314 - PTFE seal - T10053/1 If a PTFE seal is fitted, the crankshaft journals must be free of oil and grease and the seal must not be oiled. Note: After installing, allow the sealant to dry for about 30 minutes. Do not pour in engine oil until after this waiting period.
-----------------------
13
Crank Assembly
OCTAVIA
------------
------------
OCTAVIA
and
2
rod
13
with combustion chamber mark installation position and matching cylinder installation position and assignment of piston/cylinder Fig. 4 arrow on piston crown points toward belt pulley side use piston ring tensioning strap for installing if cracks present on piston stem, replace piston inspecting piston projection at TDC page 13-24 of piston = 79.47 mm
rings offset joints 120 use piston ring pliers for removing and installing marking TOP faces piston crown inspecting gap clearance Fig. 1 inspecting end clearance Fig. 2
Conrod always replace as a set mark relevant cylinder -A installation position: markings -B- point toward belt pulley side
pay attention to correct installation position do not mix up used bearing shells ensure tightly seated in retaining lugs axial play wear limit: 0.37 mm
13
Crank Assembly
K Fig. 1
' 9 ' & 9 6 7 6 1 5 ' ' ' & % $ )8 " 3 4 2$ # 0 ( ! " 5
OCTAVIA
Conrod mark matching cylinder -A installation position: marking -B- points toward belt pulley side for cooling system 10 with pressure relief valve insert without sealant
1
11
ring
Feeler gauge
Insert ring at right angles to cylinder wall, from above as far as the lower cylinder opening, about 15 mm away from edge of cylinder. ne
ring Dims. In mm
0.25...0.40 0.25...0.40
0.25...0.50
1.0 1.0
1.0
OCTAVIA
Crank Assembly
13
K Fig. 2
Special tools, testers and aids required Feeler gauge Clean annular groove before inspecting Piston ring Dimensions in mm 1st compression ring 2nd compression ring oil scraper ring New 0.06 .. 0.09 0.05 .. 0.08 0.03 .. 0.06 Wear limit 0.25 0.25 0.15
K Fig. 3
Special tools, testers and aids required Internal precision measuring instrument 50...100 mm Inspection procedure Measure at 3 points diagonally opposite in transverse direction -A- and in longitudinal direction -B-. Differences compared to nominal size max. 0.10 mm
Note: The measurement of the cylinder bore must not be carried out when the cylinder block is attached to the repair stand with the engine holder MP 1-202 as incorrect measurements may result.
13
Crank Assembly
OCTAVIA
K Fig. 4
Special tools, testers and aids required Electric pen Procedure Mark installation position and matching piston on the inside of piston (not on piston crown) with electric pen or felt pen.
Pistons in cylinders 1 and 2: Large valve pocket for inlet valve facing flywheel side -arrowsPistons in cylinders 3 and 4: Large valve pocket for inlet valve facing belt pulley side -arrowsNote: If the pistons are new, the assignment to the cylinder is stamped with ink on the piston crown. Pistons for cylinders 1 and 2: marking Pistons for cylinders 3 and 4: marking
Procedure K When installing new pistons or a short engine, inspect piston projection at TDC. Install the appropriate cylinder head gasket as shown in the table below depending on the piston projection. Piston projection beyond top edge of cylinder block 0.91 mm ... 1.00 mm 1.01 mm ... 1.10 mm 1.11 mm ... 1.20 mm Identification holes 1 2 3
OCTAVIA
Crank Assembly
13
of cylinder head Part No. = arrow 1 Control code = arrow 2 (ignore!) Openings = arrow 3 Note: If different measurements are obtained when measuring the piston projection, the highest measurement applies for assigning the gasket.
-----------------------
OCTAVIA
15
Removing and installing toothed belt page 13-4 Testing compression pressure page 15-8 Notes: When installing an exchange cylinder head with the camshaft installed, it is necessary to oil the contact surfaces between the bucket tappets and the cam track. Do not remove the plastic washers supplied as a protection for the open valves until just before fitting on the cylinder head.
Edition 11.02 S00.5110.56.20
If the cylinder head is replaced, the entire coolant system must be replaced. It is not allowed to rework the cylinder heads of the diesel engines. 1 - Cylinder head gasket replace pay attention to marking Fig. 2 2 - 20 Nm
15
OCTAVIA
3 - Cylinder head inspecting for distortion Fig. 1 removing cylinder hear page 15-4 installing cylinder head page 15-6 after replacing, fill entire system with coolant 4 - Lifting eye 5 - Cylinder head bolt replace pay attention to order for loosening page 15-4 pay attention to order for tightening page 15-6
------------ 15-2 ------------
6 - Oil deflector from 07.97 7 - Cylinder head cover with vulcanized gasket if gasket has been damaged replace cylinder head cover 8 - Collar 9 - Cap replace seal if damaged 10 - Ventilation tube to air guide pipe
Edition 11.02 S00.5110.56.20
OCTAVIA
11 12
15
17 Sealing
G replace if damaged
14
18 I tighten with 25 Nm use wrench (e.g. 3035) for removing replace complete wiring harness if damaged do not change bending shape
20 20 Nm
21 G replace
K Fig. 1
tion
head for
and
Feeler gauge
Knife-edge straightedge
K Fig. 2
I ket
of
head
Differing thickness of cylinder head gaskets are inserted according to the piston projection page 13-24. When replacing a gasket use a new gasket with the same designation.
------------
------------
15
OCTAV1A
K-
Remove noise insulation in the middle as well as on left -arrows-. Remove the air guide pipe between the charge air cooler and the intake manifold. Unscrew the oil return-flow line from the turbocharger at the cylinder block. Unscrew the oil feed line from the turbocharger. Unscrew bracket for oil feed line to turbocharger from intake manifold. Remove exhaust pipe from turbocharger. Remove the V-ribbed belt page 13-1. Drain coolant page 19-3.
OCTAV1A
15
KK-
Remove air guide hose -1-. Detach vent hose -3- and unplug connector for air mass meter -2-. Release screws -4- and -5-. Remove air filter housing. Unscrew and remove air guide hose for air filter/turbocharger at induction pipe. Remove injection lines with wrench 3035. Remove return flow lines from injection nozzles to the injection pump. Unplug glow plug edge connector. Detach line at needle lift sender and pull the plug from the holder. Detach coolant hose at cylinder head and unscrew coolant flange. Unscrew oil feed line for turbocharger at the brackets and unscrew from turbocharger. Remove coolant pipe at the brackets and detach to the left. Remove fuel hoses from the injection pump, close with plugs and lay aside. Remove plug -2- at the intake manifold temperature sender (G72) with intake manifold pressure sender (G71) and remove air guide pipe -1-. Take off top toothed belt guard. Position engine on TDC of cylinder 1, remove toothed belt from camshaft sprocket and remove camshaft sprocket page 13-4. Unscrew 2 screws for the rear toothed belt guard (on both sides of the cylinder head). Unscrew nut for tensioning pulley. Release the cylinder head bolts in the order 1...10. Unscrew bolts in the given sequence and take out of the holes.
K-
15
OCTAV1A
K-
Note:
Attach the induction pipe with a wire to the carrier lug of the lifting device in order to achieve a stable centre of gravity for the cylinder head. Slightly raise the cylinder head with the workshop crane. Swivel the cylinder head to the left out of the rear toothed belt guard and simultaneously remove the tensioning pulley.
Carefully remove residual sealant from the cylinder head and cylinder block using a chemical cleaner. Make sure this does not cause any extended scoring or scratching. Carefully remove all abrasive residue. Remove the new cylinder head seal from its wrapping immediately before fitting.
Treat the new gasket with the utmost care. Damage to the silicone layer and in the area of the bead results in leakages.
There must be no oil or coolant in the blind holes of the cylinder head bolts in the cylinder block. Special tools, testers and aids required Workshop crane (e.g. V.A.G 1202 A) Torque wrench Pliers for spring strap clips Guide bolts MP 1-208 Adjusting straightedge MP 1-312 Lifting device MP 9-201 Wrench for injection lines (e.g. 3035) Wire Wrench for cylinder head bolts (e.g. 3452)
OCTAV1A
Cylinder Head, Valve Gear Work procedure Before fitting the cylinder head position the crankshaft on TDC marking of cylinder 1 page 13-7. The adjusting straightedge MP 1-312 must allow itself to be used in the camshaft. Fit on the cylinder head gasket. To centre it, screw in the guide bolts MP 1208 into the outer holes on the suction side.
15
K-
Note:
Attach the induction pipe with a wire to the carrier lug of the lifting device in order to achieve a stable centre of gravity for the cylinder head. Swivel cylinder head into rear toothed belt guard. While swivelling the cylinder head into the rear toothed belt guard, simultaneously push the tensioning pulley. When inserting the cylinder head, pay attention to the position of the rear lugs on the cylinder head gasket. When inserting they must not be buckled up by the heat shield of the exhaust manifold.
K-
Insert 8 new cylinder head bolts and tighten manually. Remove the guide bolts by screwing out with a bolt tightener from MP 1-208 and screw in the cylinder head bolts by hand. Tighten cylinder head bolts in the order shown: 1st pre-tighten with the torque wrench to: Stage I = 40 Nm Stage II = 60 Nm
15
Cylinder Head, Valve Gear 2nd torque further with a rigid wrench: Stage III = 90 (1/4 turn) Stage IV = 90 (1/4 turn)
OCTAV1A
Note:
Tightening up the cylinder head bolts after doing repair work is not necessary. -
K-
OCTAV1A
15
Use of tester operating instructions Operate starter until the tester no longer indicates a pressure rise.
Compression readings: New engine Wear limit Pressure difference between individual cylinders max. 0.5 MPa (max. 5 bar)
- Interrogating fault memory: 1.9l/66 kW (TDI) Engine - Fuel Injection and Glow Plug System; Repair Group 01. Note: Faults are stored when disconnecting the 10-pin plug connection at the injection pump. After the measurement interrogate the fault memory and erase if necessary.
15
Note:
Cylinder heads with cracks between the valve seats may be re-used without any reduction in life provided these are only slight incipient cracks which are not more than 0.5 mm wide. 1
------------
OCTAVIA
valve
t do not mix up with hydraulic valve clearance compensation inspecting page 15-18 place down with contact surface facing down before installing, inspect axial play of camshaft Fig. 1 oil contact surface
5 Valve
Valve
retainer
7 Valve removing and installing: cylinder head removed: use MP1-218, MP 1-211, MP 1-213 cylinder head installed: page 15-14 8 Valve replacing page 15-14
10
installation position Fig. 2 installation sequence page 15-16 lightly coat contact surface of bearing cap 1 and 5 with sealant AMV 174 004 01
pay attention to different versions Fig. 4 for removing and installing, take off bearing cap and toothed belt sprocket before fitting on, fix in place the groove at the camshaft cone with adhesive tape (e.g. with Sellotape) removing and installing toothed belt sprocket page 13-4
11 Cylinder pay attention to Note page 15-10 reworking valve seats page 15-12
inspecting axial play Fig. 1 removing and installing page 15-16 runout: max. 0.01 mm camshaft marking Fig. 5
------------
OCTAVIA
15
Special tools, testers and aids required Universal dial gauge holder MP 3-447 Dial gauge Wear limit: max. 0.15 mm Carry out measurements with bucket tappets removed and first and last bearing caps installed.
K Fig. 2 Note:
Pay attention to off-centre position. Before installing the camshaft, fit on bearing caps and determine installation position.
K Fig. 3 Note:
Valves must not be reworked. Only grinding-in is permissible. Dimension a b Inlet valve 35.95 6.963 45
Valve dimensions Exhaust valve 31.45 6.943 45 mm mm c mm 96.85 96.85
------------ 15-11 ------------
15
Notes:
Marking by means of stamped numbers and letters between inlet cam and exhaust cam Cylinder 1 -arrow ACylinder 2 -arrow B38A DE
in valve
and
When repairing engines with leaking valves, it is not adequate to only machine or replace the valve seats and valves. It is also necessary to inspect the valve guides for wear, particularly on engines with high mileage page 15-14. Rework valve seats only sufficiently to obtain a proper contact pattern. Before commencing reworking, calculate the maximum permispage 15-13. If sible reworking dimension the reworking dimension is exceeded, proper operation of the hydraulic clearance compensation is no longer assured. In this case, a new cylinder head should be installed.
OCTAVIA
Cylinder Head, Valve Gear Calculating maximum permissible reworking dimension Insert valve and press firmly against the valve seat.
15
Note: If the valve is replaced as part of repair work, use a new valve for the measurement. KMeasure the distance -a- between end of valve stem and top edge of cylinder head. Calculate maximum permissible reworking dimension from the distance -a- measured and the minimum dimension.
Minimum dimensions: Inlet valve 35.8 mm Exhaust valve 36.1 mm Distance measured less minimum dimension = maximum permissible reworking dimension. Example: Distance measured - Minimum dimension 36.5 mm 35.8 mm
If the maximum permissible reworking dimension is 0 mm, repeat measurement with a new valve. If the maximum permissible reworking dimension is still 0 mm, replace cylinder head.
K Reworking inlet valve seat Dimension a b c 35.7 mm 1.6 mm Valve seats max. perm. reworking dimension Cylinder head bottom edge Bottom correction angle Valve seat angle Valve seat width Valve seat diameter
45 30
15
OCTAVIA
K Reworking exhaust valve seat Dimension a b c 31.4 mm 2.7 mm Valve seats max. perm. reworking dimension Cylinder head bottom edge Valve seat angle Valve seat width Valve seat diameter
45
Procedure
Reworking can be carried out with a machine or by hand. It is essential that the following conditions are met: l Wear limit of the valve guides must not exceed the permissible dimension page 15-14. l Use NAC milling tool with carbide metal tips (min. 90 HRC).
K Reworking valve seats with NAC hand milling tool Place cylinder head down on a felt base and secure against turning. Adapt diameter of guide drift to diameter of valve guide. Valve guide Inlet valve
Match diameter of milling tool to diameter of valve seat. Valve seat Inlet valve
Guide drift mm 7.0 -0.01 Exhaust valve Milling tool mm 90 32 37 60 34 Exhaust valve
Edition 03.98 S00.5110.52.20
OCTAV1A
Cylinder Head, Valve Gear Calculating maximum permissible reworking dimension Insert valve and press firmly against the valve seat.
15
Note:
If the valve is replaced when carrying out repair work, use a new valve for the measurement. KMeasure distance -a- between the valve stem end and the upper face of the cylinder head. Calculate max. permissible reworking dimension from the distance -a- and measure the minimum dimension. 35.8 mm 36.1 mm
If the max. permissible reworking dimension is 0 mm, repeat measurement with a new valve. If the max. permissible reworking dimension is again 0 mm, replace cylinder head. K Reworking inlet valve seat a = 35.7 mm b = 1.6 mm 45 = Valve seat angle Note: The 30 rear milled section on the valve seat is absolutely essential due to the flow characteristics in the inlet canal. K Reworking outlet valve seat a = 31.4 mm b = 2.7 mm 45 = Valve seat angle
15
OCTAV1A
K-
Grind in valve/valve seat with fine grinding paste so as to achieve a perfect contact pattern -arrows-. Inspect valve for leaks.
The inspection can be carried out with water colour (perfect contact pattern over entire circumference) or by filling fuel into the combustion chamber (no fuel must flow out at the valve seat). Note: After installing the cylinder head, check the hydraulic bucket tappets page 15-18.
Special tools, testers and aids required Universal dial gauge holder MP 3-447 Dial gauge Test procedure KInsert valve into valve guide. End of valve stem must be flush with guide. Valve rock: max. 1.3 mm Notes: If the wear limit is exceeded, repeat measurement with new valves. If the wear limit is again exceeded, replace valve guides page 15-19.
If the valve is replaced when carrying out repair work, use a new valve for the measurement.
Special tools, testers and aids required Assembly lever with pressure plate MP 1-211 Assembly device MP 1-213 Gasket ring extractor MP 1-206 Insertion tool MP 1-306
OCTAVIA
15
Removing KRemove camshaft page 15-16. Remove bucket tappets (do not mix up) and place down with running surface facing down. Move piston of the relevant cylinder into top dead centre (TDC). Insert assembly device MP 1-213 and set mounting at height of stud bolt. Use assembly lever and thrust piece MP 1-211 to remove valve springs.
Note: The valves are supported on the piston crown when carrying out this step.
K-
Installing KFit plastic sleeve -A- onto the valve stem in order to avoid damaging the new valve stem seals. Oil valve stem seal -B-, insert into the fitting tool MP 1-306 and carefully push onto the valve guide.
Notes:
Wait about 30 minutes before starting the engine after installing the camshaft. The hydraulic compensating elements have to settle (otherwise valves will strike the piston).
15
OCTAV1A
After carrying out work on the valve gear, carefully crank engine at least 2 revolutions to ensure that no valve touches the piston when the engine is started.
Remove top toothed belt guard, cylinder head cover and vacuum pump. Position crankshaft on TDC of cylinder 1 (vehicles with manual gearbox).
Note:
Position crankshaft on TDC of cylinder 1 when engine was removed page 13-11.
K-
OCTAV1A
15
K-
At the same time the adjusting straightedge MP 1-312 must be inserted easily into the slot at the rear of the camshaft (without the illustrated gauges).
Notes:
If the adjusting straightedge cannot be inserted, rotate the crankshaft 1 further turn (360). The valves of cylinder 1 must be closed and the valves of cylinder 4 must overlap -arrows-.
Notes:
To loosen and tighten the fixing bolt for the camshaft sprocket never use the adjusting straightedge as counterholder ! Counterhold with counterholder MP 1-216. KLoosen the fixing bolt on the camshaft sprocket by 1 turn. Place puller T40001 with hook T40001/2 -Aand T40001/3 -B- on the camshaft. Use openend wrench as counterholder and loosen the camshaft sprocket from the cone of the camshaft. Remove camshaft sprocket. First of all remove bearing caps 5, 1 and 3. Loosen bearing caps 2 and 4 alternately diagonally across.
Installing Notes: When fitting the camshaft the cams of cylinder 1 must point upwards.
K When installing the bearing caps, pay attention to the centre displacement of the bore, before installing insert bearing cap and determine fitting position. Edition 04.04 S00.5110.57.20
Oil contact surfaces of camshaft. Tighten bearing caps 2 and 4 alternately crosswise to 20 Nm. Install bearing caps 5, 1 and 3 and likewise tighten to 20 Nm. Fit on the camshaft sprocket and tighten by hand. Installing toothed belt page 13-4.
------------ 15-17 ------------
15
OCTAVIA
After carrying out work on the valve gear, carefully crank engine at least 2 revolutions to ensure that no valve strikes the piston when the engine is started.
After installing the camshaft, the engine must not be started for about 30 minutes. The hydraulic valve clearance compensating elements have to settle (otherwise valves will strike the pistons).
Irregular valve noises when starting are normal. Special tools, testers and aids required Feeler gauge Wooden or plastic wedge Inspection procedure -
Start engine and continue running until the radiator fan has cut in once. Increase engine speed to about 2500 rpm for 2 minutes; carry out a road test if necessary.
If the hydraulic bucket tappets are still loud, determine the faulty tappet as follows: Remove cylinder head cover. Rotate crankshaft clockwise until the cams of the bucket tappets to be inspected are facing up. Determine clearance between cam and bucket tappet. Use a wooden or plastic wedge to press bucket tappet down. If it is possible to insert a 0.20 mm feeler gauge between camshaft and bucket tappet, replace tappet.
K-
OCTAVIA
Cylinder Head, Valve Gear Notes: After installing the camshaft, the engine must not be started for about 30 minutes. The hydraulic valve clearance compensating elements have to settle (otherwise valves will strike the pistons).
15
After carrying out work on the valve gear, carefully crank engine at least 2 revolutions to ensure that no valve strikes the piston when the engine is started.
Installing -
Moisten new valve guides with oil and press into the cold cylinder head with MP 1-205 from the camshaft side as far as the shoulder.
Note:
After the guide makes contact with the shoulder, the pressure applied must not be increased otherwise the shoulder may shear beyond off. Use hand reamer MP1-204 to ream open valve guide. It is essential to use diluted soluble oil for this step. Rework valve seats page 15-12.
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OCTAVIA
Lubrication system
17
To extract oil, remove filler funnel on dipstick guide tube. Testing compression page 17-5. Inspecting oil level, oil quantity, oil specification Inspection and Maintenance 1 - Oil pump Duocentric pump with 1.2 MPa pressure relief valve before installing, check whether the two dowel sleeves for centering oil pump/cylinder block are fitted if scores present on running surfaces and gears, replace torque for attaching oil pump cover to oil pump housing: 10 Nm
17
Lubrication system
OCTAVIA
OCTAVIA
Lubrication System
17
Notes: Use wrench to slacken and tighten oil pan bolts. On models with extended service interval, unplug connector from oil level and oil temperature sender -G266. K-
Take off oil pan; detach with light blows from a rubber-headed hammer if necessary. Use a flat scraper to remove sealant residues on cylinder block. Use rotating plastic brush to remove sealant residues on oil pan (wear eye protection). Clean sealing surfaces; they must be free of oil and grease.
17
OCTAVIA
The oil pan must be installed within 5 minutes after applying the silicone sealant. KCut off tube nozzle at the front marking ( of tube about 3mm). Thickness of sealant bead: 2 ... 3 mm Note: The sealant bead must not be thicker than 3 mm otherwise excess sealant may get into the oil pan and block the strainer in the oil intake pipe.
K-
Apply silicone sealant to the clean sealing surface of the oil pan, as shown in the illustration.
Note: Apply sealant bead with particular care in the area of the rear sealing flange -arrows-. Fit on oil pan immediately and slightly tighten all the bolts of oil pan/cylinder block. Tighten 3 bolts of oil pan/gearbox to 45 Nm. Tighten bolts of oil pan/cylinder block diagonally across in 2 stages, the last stage to 15 Nm.
Notes: When attaching the oil pan to the removed engine, ensure that the oil pan finishes flush with the cylinder block at the flywheel side. After installing the oil pan, allow the sealant to dry for about 30 minutes. Do not pour in engine oil until after this waiting period.
------------
------------
On models fitted with extended service interval, unplug connector of oil level and oil temperature sender -G266 and erase fault memory 1.9 l/66 kW (TDI) Engine - Fuel Injection and Glow Plug System; Repair Group 01; Interrogating and erasing fault memory.
OCTAVIA
Lubrication System
17
17
OCTAV1A
l Inspect engine oil level to ensure that it is OK Inspection and Maintenance. l Warning light for oil pressure (K3) must light up briefly when switching on the ignition. l Engine oil temperature must be at least 80C (radiator fan must run once). Testing oil pressure switch KDetach cable from oil pressure switch. Unscrew oil pressure switch and screw in oil pressure tester (e.g. V.A.G 1342) Screw oil pressure switch into the tester V.A.G 1342. Connect brown cable of tester to earth (-). Connect diode test lamp (e.g. V.A.G 1527) to oil pressure switch -2- and to the battery positive (+). Start engine and slowly increase engine speed. At a pressure of 0.075...0.105 MPa (0.75...1.05 bar) the LED must come on. If it does not come on, replace oil pressure switch. Unscrew oil pressure switch and screw in V.A.G 1342. Screw oil pressure switch into V.A.G 1342. Start engine (engine oil temperature at least 80 C). Oil pressure when engine idling: min. 0.1 MPa (1.0 bar) Oil pressure at 2000 rpm: min. 0.2 MPa (2.0 bar) At a higher engine speed the oil pressure must not be greater than 0.7 MPa (7.0 bar). Otherwise replace oil pump cover with pressure relief valve.
OCTAVIA
Lubrication System
17
Engine oil
The engine is factory-filled with a branded multigrade oil which can also be used as an allseasons oil - except in extremely cold climatic zones. The specifications stated below must be indicated individually or together with other specifications on the can. A - Multigrade high-lubricity oils, specification VW 500 00 1) (only in combination with specification VW 505 00 1))
- Multigrade oils, specification VW 501 01 1) (only in combination with specification VW 505 00 1)) - Multigrade oils, specification ACEA B396 2) (only exceptionally for topping up)
- Multigrade oils, specification VW 502 00 3) (only in combination with specification VW 505 00 1))
1)
A date not earlier than 11.92 must be indicated after this VW Standard. This oil must only be used once for topping up within the specified oil change interval if no approved engine oil is available. A date not earlier than 01.97 must be indicated after this VW Standard.
2)
3)
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6 A W X C T G 6 6 R A A QE 9 F E 9 E I 9 E F B 9 C P G H G ' ' 3 2 ! 4 ( 5 ! 6 ! 1 U D ) 1! ) ! 09 ( 0@ 0 $ Q T ' D ( # # % ! D# #07#D8#87 R7 DV " !& S $ ##8 7 D$ "0 "$0 #
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17
Lubrication System
The
Note:
he
OCTAVIA
OCTAV1A
Cooling System
19
The hose connections are secured with spring strap clips. In the event of repairs only use spring strap clips. Use pliers for spring strap clips to fit the spring strap clips. Always replace seals and gasket rings.
The arrows which are on the coolant pipes and the coolant hoses must stand opposite to each other. Draining and filling up coolant page 19-3. Coolant mixing ratio page 19-4. Inspect cooling system for leaks page 19-8.
19
Cooling System
OCTAV1A
1 - Radiator after replacing fill entire system with fresh coolant removing and installing page 19-9 2 - O-ring replace 3 - Top coolant hose secured using a retaining clip connection diagram for coolant hoses page 19-2.4
------------ 19-2 ------------
4 - Fan shroud 5 - 10 Nm 6 - Auxiliary fan on vehicles with air conditioning, or additional equipment 7 - Fan holder
OCTAV1A
8 - Retaining clips for fan cable check tightness 9 - Connector 10 - Radiator fan 11 - To coolant pipe connection diagram for coolant hoses page 19-2.4 12 - Expansion reservoir inspect cooling system for leaks with the tester V.A.G 1274 and adapter V.A.G 1274/8 13 - Cap inspect with the tester V.A.G 1274 and adapter V.A:G 1274/9 Overpressure from 1.4...1.6 bar 14 - Holder for connector of fan
Cooling System 15 - Bottom coolant hose attached to radiator using a retaining clip connection diagram for coolant hoses page 19-2.4 16 - O-ring replace 17 - Thermoswitch (-F18-), 35 Nm for radiator fan switching temperatures: 1st stage on: 92...97 C off: 84...91 C 2nd stage on: 99...105 C off: 91...98 C 18 - Holder for radiator pay attention to fitting position pay attention to different version 19 - 10 Nm
19
19
Cooling System
OCTAV1A
1 - 15 Nm 2 - Coolant pipe inspect for smooth operation pay attention to fitting position removing and installing page 19-5 3 - O-ring replace
4 - To top radiator connection diagram for coolant hoses page 19-2.4 5 - To cylinder head connection diagram for coolant hoses page 19-2.4 6 - To top expansion reservoir connection diagram for coolant hoses page 19-2.4
OCTAV1A
7 - To heat exchanger for heating connection diagram for coolant hoses page 19-2.4 8 - Radiator for exhaust gas recirculation only on engines ALH with automatic gearbox 9 - From connection fitting connection diagram for coolant hoses page 19-2.4 10 - 10 Nm 11 - To expansion reservoir connection diagram for coolant hoses page 19-2.4 12 - Top coolant hose attached to bulkhead connection diagram for coolant hoses page 19-2.4 13 - O-ring check tightness replace 14 - Coolant temperature sender -G62 with sender for coolant temperature display -G215 - Retaining clips check tightness 16 - To heat exchanger for heating connection diagram for coolant hoses page 19-2.4
Cooling System 17 - From heat exchanger for heating connection diagram for coolant hoses page 19-2.4 18 - 10 Nm 19 - Connection fitting 20 - Coolant pipe connection diagram for coolant hoses page 19-2.4 21 - To top radiator connection diagram for coolant hoses page 19-2.4 22 - To bottom expansion reservoir connection diagram for coolant hoses page 19-2.4 23 - To bottom radiator connection diagram for coolant hoses page 19-2.4 24 - Connection fitting for coolant regulator 25 - Coolant regulator removing and installing page 19-7 pay attention to fitting position inspecting: Heat thermostat in water bath opening start approx. 85 C End approx. 105 C Opening stroke at least 7 mm 26 - Oil cooler removing and installing page 17-2
19
19
Cooling System
OCTAV1A
1 - Radiator after replacing fill entire system with fresh coolant removing and installing page 19-9 2 - Oil cooler removing and installing page 17-2
3 - Coolant pump, coolant regulator removing and installing coolant pipe page 19-5 inspect for smooth operation removing and installing coolant pipe page 19-7
OCTAV1A
4 - Cylinder block 5 - Expansion reservoir 6 - Intake manifold 7 - Radiator for exhaust gas recirculation only on engines ALH with automatic gearbox
Cooling System 8 - Heat exchanger for heating 9 - ATF radiator only on vehicles with automatic gearbox 10 - Heater for coolant only on vehicles with special equipment
19
Hot steam may escape when the expansion reservoir is opened; cover the cap with a cloth and open carefully. KRemove engine cover page 10-2.
K-
19
Cooling System
OCTAV1A
K-
Turn drain plug -arrow- on the radiator to the left, if necessary fit auxiliary hose onto connection.
K-
In addition remove coolant hose at bottom on the oil cooler -arrow- and drain residual coolant.
Filling up Select the appropriate coolant additive from the original spare parts catalogue koda or from the list of allowed coolant additives Inspection and Maintenance; change coolant. Recommended mixture ratios: Antifreeze protection down to Antifreeze concentration1)2) 40 % (2.7 l) 50 % (3.4 l) Drinking water2) 60 % (4.1 l) 50 % (3.4 l)
-25 C -35 C
1)
2)
Because of inadequate corrosion protection, the antifreeze concentration must not be under 30 % and must not exceed 60%, the antifreeze protection and cooling efficiency are reduced as the concentration increases. The coolant amount may differ according to the version of the vehicle.
OCTAVIA
Cooling System If the two coolants are mixed, the coolant turns brown in colour. Brown coolant should be drained immediately, the cooling system flushed out with drinking water and filled with fresh coolant. If this is not done, there is a risk of damage to the engine and the cooling system. If bluish-green coolant (G11) is replaced with the red coolant (G12), the entire cooling system should be flushed out with drinking water.
19
Coolant which complies with the standard TL VW 774 C (G11) -bluish-green in colourshould not be added to a cooling system of the vehicle unless this system is already filled with this coolant.
If the cooling system of the vehicle is filled with red coolant (G12), only red coolant (G12) may be used for refilling or topping up the cooling system. Coolant additives from the koda Genuine Parts Catalogue which comply with the standard TL VW 774 D: Coolant additives Glysantin G 30-72 XT 4030 Manufacturer
BASF AG TEXACO
ELF OIL AG
The coolant additives stated can also be intermixed. Recommended mixing ratios: Antifreeze protection down to -25 C -35 C
1)
2)
Do not exceed an antifreeze concentration of 60 %; the antifreeze protection and cooling efficiency are reduced at higher concentrations. Quantity of coolant may differ according to equipment of vehicle.
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19
Cooling System
OCTAVIA
OCTAV1A
Cooling System Fill with coolant gradually up to max marking on the expansion reservoir. Start engine and run for max. 2 minutes at approx. 1500 rpm; fill up coolant to overflow opening of expansion reservoir. Close expansion reservoir. Run engine until the fan starts. Inspect coolant level. If the engine is warm the coolant level must be on the max marking, if the engine is cold the level must lie between the min and max marking.
19
19
Cooling System
OCTAV1A
K-
Unbolt fixing nut -3- for air guide pipe -2-. Remove air guide pipe -2-. Remove the V-ribbed belt page 13-1. Remove tensioning pulley page 13-1. Remove top and middle toothed belt guard page 13-4. Remove toothed belt from camshaft sprocket and from injection pump gear page 13-4.
Notes:
The vibration damper and the bottom toothed belt guard can remain installed. The timing belt remains fitted onto the crankshaft timing belt sprocket.
Pay attention to all the notes for removal and installation of the toothed belt page 13-4.
K-
Unscrew screw -1- for guide pulley and press down the guide pulley -2- approx. 30 mm. Unscrew coolant pump -4- and carefully remove engine support and toothed belt guard. Clean sealing surface for O-ring or smoothen. Replace O-ring -5- and moisten with coolant. Insert coolant pump. Fitting position: Plug in housing points down. Tighten screws -3- of coolant pump to 15 Nm. Replace screw -1- for guide pulley, tighten to 40 Nm and turn a further 90 (1/4 turn).
Installing -
OCTAV1A
Cooling System Install toothed belt page 13-4. Install the V-ribbed belt page 13-1. Fill coolant page 19-3.
19
Installing -
cannot be tested
Opening start
19
Cooling System
OCTAVIA
Installing coolant pipe KBefore installing, clean or smooth sealing surface for O-ring. Moisten O-ring -1- with coolant and fit onto coolant pipe -2-. Insert coolant pipe into the hole on the cylinder block. Bolt bracket for coolant pipe tight to 10 Nm-
Important! Hot vapours may escape when the expansion reservoir is opened. Cover over cap with cleaning rags and open carefully.
Mount tester V.A.G 1274 with adapter V.A.G 1274/8 onto the expansion reservoir. Use the priming pump of the tester to produce a pressure of about 0.1 MPa. If the pressure drops, locate the leakage point and rectify fault.
Testing pressure relief valve in cap Screw cap onto the tester using adapter V.A.G 1274/9. Operate the priming pump of the tester to produce a pressure of about 0.15 MPa. The pressure relief valve should open at a pressure of 0.12 ... 0.15 MPa.
OCTAV1A
Cooling System
19
Raise vehicle with lift platform page 10-1. Special tools, testers and aids required Torque wrench Wire Removing KDrain coolant page 19-3. Disconnect connector -1- from thermoswitch (-F18-) and separate plug connections -2and -3- at fan shroud (press catches). Disconnect coolant hoses at connection fittings of radiator (pull off retaining clips).
Vehicles with air conditioning KUnscrew the 4 fixing bolts -arrows- attaching the condenser. Caution!
Do not open the refrigerant circuit of the air conditioning system. Note:
The refrigerant lines/hoses must not be overstretched, kinked or bent in order to avoid damage to the condenser.
19
Cooling System
OCTAVIA
K-
Continued for all models - Remove both headlights: Electrical System; Repair Group 94; Removing and installing headlights KRemove the 4 bolts -arrows- for attaching the top radiator mount.
K-
Remove the 4 bolts -arrows- for attaching the bottom radiator mount.
OCTAVIA
Cooling System
19
Models with air conditioning KPull out radiator slightly together with condenser. Detach clip -arrow- for attaching refrigerant pipe.
Note: When removing and installing the fan shroud, ensure that the radiator ribs are not damaged.
Carefully take out the radiator downward.
Installing Installation is performed in the reverse order; pay attention to the following points: KTighten thermostatic switch -1- to 35 Nm. Fit on the brackets -2- and -3- at the radiator, as illustrated. Tighten the bolts for attaching the fan shroud and radiator mounts to 10 Nm. On models with air conditioning, tighten the bolts for attaching condenser and brackets for refrigerant pipes to 10 Nm. Replace O-rings in the connection fittings of the coolant hoses. Insert drain plug for coolant. Fill system with coolant page 19-3.
- Install headlights: Electrical System; Repair Group 94; Removing and installing headlights - Electrical connections and routing: Current Flow Diagrams, Electrical Fault Finding and Fitting Locations binder
19
Cooling System
OCTAVIA
Special tools, testers and aids required KSeparate plug connections -2- and -3- at the fan ring (press catches) and detach plug connections from the holder. Detach wiring harness from the holder at the fan ring.
Only for fan V7 (large ) - Remove right headlight Electrical System; Repair Group 94; Removing and installing headlights. Unscrew bolts (3 in total) for attaching air guide pipe (below right headlight). Detach air guide pipe so that the fan bolt can be unscrewed.
Both fans Unscrew bolts (3 in total) attaching the fan and lift out fan (fan V7 up, fan V35 with smaller down).
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OCTAVIA
20
Pay attention to rules for cleanliness page 20-3. Always replace collar-type clamps with screw-type clamps. Always replace all gaskets and seals.
Servicing fuel filter 1.9 l/66 kW (TDI) Engine - Fuel Injection and Glow Plug System; Repair Group 23 1 - Fuel tank 2 - Seal moisten with fuel for installing carefully insert seal into the fuel tank before installing fuel gauge sender
Servicing throttle mechanism: 1.9 l/66 kW (TDI) Engine - Fuel Injection and Glow Plug System; Repair Group 23
20
Fuel Supply System 17 - Clamping washer removing: turn to left installing: tighten to 2 Nm 18 - Heat shield for fuel tank 19 - Cover for fuel tank not fitted to all models
OCTAVIA
20 - 20 Nm + torque a further 1/4 turn (90) replace 21 - Tensioning straps pay attention to different lengths 22 - Fuel cooler only for models fitted with automatic gearbox removing and installing page 20-2 23 - To fuel filter 24 - 20 Nm
K Fig. 1
Installing Installation occurs in reverse order while paying attention to the following: Tighten fixing nuts for fuel cooler to 20 Nm.
------------ 20-2 -----------Edition 11.02 S00.5110.56.20
OCTAVIA
20
20
OCTAVIA
Installing KPay attention to installation position: Marking on closing flange must be aligned with marking on fuel tank -arrows-. Blue return-flow line -1- to connection marked with R. Black feed line -2- to connection marked with V.
- Remove rear axle: Running Gear; Repair Group 42; Removing and installing rear axle
OCTAVIA
20
K-
Unbolt cover (below rear seat). Unplug multi-pin connector for fuel gauge. Open fuel filler cap and lever out tensioning ring in rubber bowl (around filler neck). Push rubber bowl through to the inside. Remove rear right wheelhouse liner. Slacken 2 screws for fuel filler neck working from the wheelhouse. Remove cover below the fuel tank -arrows(not fitted to all models).
Separate 2 fuel pipes at the front right of the fuel tank: Press buttons on the hose connections for this purpose -arrows-.
black = feed pipe blue = return flow pipe Position engine/gearbox jack (e.g. V.A.G 1383 A) below the fuel tank for supporting it.
K-
Slacken the bolted connections -arrows- at the front left and at the retaining straps. Lower fuel tank.
Installing Take heat shield from the old fuel tank and fit onto the new one.
20
OCTAVIA
Removing and installing fuel tank with attached parts for 4 x 4 models
Notes: Pay attention to safety precautions page 20-3. Pay attention to rules for cleanliness page 20-3.
Servicing fuel filter: 1.9-ltr./66 kW (TDI) Engine, Fuel Injection and Glow Plug System; Repair Group 23; Servicing diesel direct injection system; Servicing fuel filter 1 - Fuel tank Removing and installing page 20-9
Servicing throttle mechanism: 1.9-ltr./66 kW (TDI) Engine, Fuel Injection and Glow Plug System; Repair Group 23; Servicing diesel direct injection system; Servicing throttle mechanism
------------ 20-6 ------------
OCTAVIA
2 - Seal moisten with fuel for installing carefully insert seal into the fuel tank before installing fuel gauge sender 3 - Right fuel gauge sender with pump for pumping over fuel with closing flange removing and installing page 20-8 position of sender with strainer can be moved relative to top part 4 - Union nut, 80 Nm use wrench MP 1-227 for removing and installing 5 - Feed line black is attached to connection marked V at closing flange to detach from closing flange, press unlocking button at connector 6 - Return-flow line blue is attached to connection marked R at closing flange to detach from closing flange, press unlocking button at connector 7 - Overflow hose 8 - O-ring 9 - Gravity valve for removing, unclip valve and lift up and out of filler neck inspecting valve for clearance valve vertical: open valve tilted 45: closed 10 - Cap 11 - Rubber bowl 12 - Earth connection 13 - O-rings
Fuel Supply System 14 - Vent valve 15 - 10 Nm 16 - Vent hoses 17 - Left fuel gauge sender with closing flange removing and installing page 20-8 position of sender can be moved relative to top part 18 - Heat shield for fuel tank 19 - 20 Nm + torque a further 1/4 turn (90) replace 20 - Clamping washer 21 - Tensioning straps pay attention to different lengths
20
20
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1 ! 1 2 & " 2 & 2 1 $ 1 ' 6 3 4 2 1 ! 1 2 & " 2 & $ 2 1 $ 1 5 ' 6" 4 ) 137 ! 1 2 & " 2 & 2 1 $ ! 0 ' ( 6 3 4 2 ) 1 ! 1 2 & " 2 & $ 2 1 $ ! 0 5 ' ( 6 4 &37 % " " $# $ $ " ! ! " ' 3 3
Fuel Supply System
OCTAVIA
gauge
and aids
Slacken fuel feed line and fuel return-flow line and detach.
K-
Use MP 1-227 to slacken union nut and pull closing flange and sender out of the fuel tank.
Use MP 1-227 to slacken union nut and pull closing flange and sender out of the fuel tank.
K-
Marking on closing flange must be aligned with marking on fuel tank -arrows-. Blue return-flow line -1- to connection marked with -R-.
Marking on closing flange must be aligned with marking on fuel tank -arrows-.
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OCTAVIA
20
black = feed line blue = return-flow line Remove exhaust (without front exhaust pipe) page 26-4.1.
- Remove rear part of propshaft. 5-Speed Manual Gearbox 02C; Repair Group 39; Removing and installing propeller shaft. KUnscrew the bottom bolts -arrow- attaching the left and right shock absorbers.
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20
OCTAVIA
Separate connector at ABS and Haldex coupling. Detach vent hoses of Haldex coupling. Support the rear final drive with the engine/ gearbox lifter (e.g. V.A.G 1383 A). Unscrew bolts at rear axle -arrows-. Swivel out rear axle by lowering the lifter. Remove guard plate. Unscrew 2 bolts of fuel tank mount.
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KSlacken bolts -arrows- at tensioning straps. Lower fuel tank. Installation is carried out in the reverse order.
-----------Edition 06.99 S00.5110.53.20
OCTAV1A
Turbocharging
21
The hose connections are secured with clamps. The charge air system must be tight. Always replace self-locking nuts.
Inspecting turbocharger 1.9l/66 kW (TDI) Engine - Fuel Injection and Glow Plug System; Repair Group 23.
21
Turbocharging
OCTAV1A
Removing and installing turbocharger for the engine AGR with attached parts
1 - Intake manifold on engines 07.97 with mechanical exhaust gas recirculation valve 2 - Intake manifold on engines 08.97 3 - O-ring on engines 08.97 replace
4 - Vacuum setting element on engines 08.97 for intake manifold flap 5 - Induction pipe on engines 08.97 with mechanical exhaust gas recirculation valve for intake manifold flap
OCTAV1A
6 - 10 Nm 7 - From charge air cooler 8 - Gasket fitting position: Bead points towards intake manifold 9 - Gasket Replace 10 - 20 Nm 11 - Exhaust gas recirculation pipe 12 - Gasket pay attention to fitting position 13 - Exhaust manifold 14 - Bracket 15 - Shield 16 - Washer 1.6 mm thick 17 - 25 Nm 18 - O-ring replace 19 - Connecting piece for charge pressure control 20 - Banjo bolt, 15 Nm 21 - Screwed socket, 40 Nm 22 - Oil return- flow line for vehicles 05.99 to cylinder block 23 - From air filter
Turbocharging 24 - O-ring replace 25 - Oil return-flow line for vehicles 04.99 to cylinder block 26 - Banjo bolt, 40 Nm 27 - 15 Nm 28 - Front exhaust pipe 29 - Turbocharger removing and installing page 21-6 30 - Screwed socket 30 Nm for vehicles 02.99 20 Nm for vehicles 03.99 31 - Oil feed line from oil filter holder pos. 15, page 17-2. 32 - 30 Nm replace coat thread and head contact surface of bolt with hot bolt paste G 052 112 A3 33 - Intake manifold flap change-over valve (-N239-) 34 - Washer 4 mm thick 35 - 25 Nm replace coat thread and contact surface of bolt with hot bolt paste G 052 112 A3
21
21
Turbocharging
OCTAV1A
Removing and installing turbocharger for the engine ALH with attached parts
1 - Exhaust manifold with turbocharger must be replaced completely 2 - Intake manifold 3 - From charge air cooler 4 - Gasket replace
5 - 25 Nm 6 - Gasket pay attention to fitting position 7 - Washer 8 - 25 Nm replace coat stud bolts with hot bolt paste -G052 112 A3-
OCTAV1A
9 - From air filter replace 10 - To charge air cooler 11 - Vacuum setting element charge pressure control component part of the exhaust turbocharger cannot be replaced separately 12 - Shield 13 - Support turbocharger - cylinder block 14 - 40 Nm 15 - 25 Nm 16 - O-ring replace 17 - Connection fitting, 40 Nm 18 - 17 Nm 19 - Oil return-flow line to cylinder block tighten to 35 Nm
Turbocharging 20 - O-ring for oil return-flow line replace 21 - Turbocharger can only be replaced complete with exhaust manifold removing and installing page 21-8 Inspect vacuum setting element of charge pressure control page 21-5 charge pressure regulating valve and vacuum setting element are component parts of the exhaust turbocharger and must not be replaced individually. After installing the turbocharger, run engine at idling speed for about 1 minute to ensure that oil is supplied to the turbocharger. 22 - O-ring replace 23 - Front exhaust pipe with catalytic converter 24 - Connection fitting, 30 Nm 25 - Oil feed line tighten to 25 Nm 26 - 10 Nm
21
21
Turbocharging
OCTAV1A
Engines ALH: K 1 - Charge pressure control solenoid valve (-N75-) 2 - To exhaust gas recirculation valve (-N18-) 3 - To air filter 4 - Vacuum reservoir 6 - Turbocharger
5 - Vacuum setting element of charge pressure control 7 - To intake manifold flap change-over valve (-N239-)
8 - Non-return valve, white connection points to charge pressure control solenoid valve (-N75-)
OCTAV1A
Turbocharging
21
K-
If the actuator rod does not move despite having an easily moving lever: Replace vacuum setting element of charge pressure control valve -3-.
Engines ALH: Special tools, testers and aids required Hand vacuum pump (e.g. V.A.G 1390) Test procedure KConnect hand vacuum pump to the vacuum setting element for charge pressure control valve and check actuator rod for smooth operation.
If the actuator rod only moves with difficulty or does not move at all: Replace turbocharger.
21
Turbocharging
OCTAV1A
OCTAV1A
Turbocharging For 4x4 vehicles KLift turbocharger up and out. Take turbocharger down and out. Fit hose onto vacuum setting element for charge pressure control valve and secure with collar clamp. Coat thread and head contact surface of fixing bolts -1- with hot bolt paste G 052 112 A3. Fit turbocharger onto exhaust manifold and tighten securing bolt -1- by hand. Coat nut -2- with hot bolt paste G 052 112 A3 and tighten to 25 Nm. Tighten fixing bolts -1- to 30 Nm. Install intake manifold and exhaust manifold page 21-2. Fit on oil return-flow line with new gasket and tighten to 15 Nm. Attach front exhaust pipe with new gasket and tighten to 25 Nm.
21
Installing
Note:
Fill the turbocharger with engine oil at connection fitting of oil feed line. Fit on oil feed line and tighten to 25 Nm. Tighten clamps for oil feed line to 10 Nm. Fit hose onto charge pressure control valve and secure with collar clamp. Connect hose to charge pressure control solenoid valve -N75 to turbocharger and secure with collar clamp, or screw in banjo bolt with new gasket rings and tighten to 15 Nm as appropriate.
21
Turbocharging -
OCTAV1A
Install air guide pipe from charge air cooler with hose to turbocharger. Install air guide pipe from air filter to turbocharger.
Note:
After installing the turbocharger, run engine at idling speed for about 1 minute but do no yet rev up to ensure proper supply of oil to turbocharger. Engines ALH: Removing KRemove top connection pipe and charge air connection hose. Removing intake manifold. Detach connecting hoses -1- and -2-. Remove oil return-flow line -5-. Unscrew bolts -3- and -4- and remove support. Detach vacuum hose -7- from vacuum setting element for charge pressure control. Remove exhaust pipe -6- from turbocharger and lay aside. Remove oil feed line from turbocharger. Unbolt exhaust manifold from cylinder head. Lift turbocharger up and out.
Installing Further installation is carried out in reverse order. Pay attention to the following: Note: After installing the turbocharger, run engine at idling speed for about 1 minute to ensure that oil is supplied to the turbocharger.
OCTAVIA
Turbocharging system
21
Notes: Hose connections are secured with spring strap clips. Only spring strap clips may be used when carrying out repairs. It is recommended to use the pliers for removing and installing the spring strap clips.
There must not be any leak in the charge air system. 1 - Charge air cooler Removing and installing page 21-10 2 - 10 Nm 3 - Bracket 4 - Hose 5 - Air guide pipe Charge air cooler/intake manifold 6 - O-ring Replace if damaged 7 - Intake manifold temperature sender -G72 With intake manifold pressure sender -G71 8 - 5 Nm 9 - Air guide pipe For models 08.97 Charge air cooler/turbocharger 10 - Air guide pipe For models 07.97 Charge air cooler/turbocharger
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21
Turbocharging
OCTAVIA
K-
Detach fuel lines -arrows- to injection pump, seal with plugs and place to the side. Unplug connector -2- at intake manifold temperature sender -G72 together with intake manifold pressure sender -G71. Remove air guide pipe -1-. Remove windshield washer fluid reservoir.
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Note:
------------
K-
If the vehicle is equipped with xenon headlights, the right headlight must be removed Electrical System; Repair Group 94.
OCTAVIA
Turbocharging
21
K-
Unscrew nut -3- securing air guide pipe -2-. Take off air guide pipe. Detach right wheelhouse liner at the front edge. Turn down nut -1- at bracket for intercooler. Remove intercooler downward.
OCTAV1A
Exhaust System
26
Notes:
Always replace gaskets and self-locking nuts. 1 - 20 Nm 2 - Tunnel bridge with hole for aligning exhaust system page 26-3 3 - Hanger fitting position Fig. 2 4 - 25 Nm 5 - Hanger 6 - 25 Nm replace coat stud bolts with hot bolt paste G052 112 A3
26
Exhaust System
OCTAV1A
K Fig. 1
Separation point
When replacing middle silencer or rear silencer Marked by three recesses around circumference of exhaust pipe
K Fig. 2
The angled side -arrow- at the base of the hanger points in direction of travel.
OCTAV1A
Exhaust System
26
Work procedure KShop-made tool from an M10 bolt to the dimensions stated for aligning the exhaust system. Dimension x = 4 mm Dimension y = 25 mm
Note:
A second person is required for aligning the exhaust system. KLoosen bolted connections of double clamp page 26-1, -pos. 9. Insert shop-made tool through the rear hole -arrow- of the tunnel bridge, the flat side points toward the hanger pin of the exhaust system.
Note:
The exhaust system is pretensioned in the direction of travel when the shop-made tool is inserted. KAlign rear silencer horizontally. The hanger pin at the exhaust pipe must be parallel to the tunnel bridge (dimension -xon left and right identical).
Note:
On vehicles with separation point page 26-2 inspect horizontal position of rear silencer additionally at tail pipes.
26
Exhaust System
OCTAV1A
K-
Position double clamp with a distance of about 5 mm to the line of the marking -A arrow 1- and tighten evenly to 40 Nm in the horizontal position.
Notes:
The marking -A- applies to vehicles with manual gearbox and automatic gearbox.
OCTAV1A
Exhaust System
Removing and installing parts of the exhaust system for 4x4 vehicles
3 - Front exhaust pipe 4 - Gasket replace 5 - Oxidation catalytic converter protect against shocks and blows 6 - 25 Nm replace 7 - Bolt 8 - Retaining strap 9 - 25 Nm 10 - Rear silencer installed as standard with part -11-, in the event of repairs it is delivered separately Exhaust pipe with separation point page 26-4.2 11 - Front silencer installed as standard with part -10-, in the event of repairs it is delivered separately exhaust pipe with separation point page 26-4.2 align free of stress 12 - Double clamp fitting position: bolted connection pointing to left; fitting position is marked by tree lugs on the front silencer tighten bolted connections evenly 13 - 40 Nm 14 - Bracket
26
Notes:
Always replace gaskets and self-locking nuts. 1 - Gasket replace 2 - 25 Nm replace coat stud bolts with hot bolt paste G052 112 A3
26
Exhaust System
OCTAV1A
K Fig. 1
Separation point
When replacing middle silencer or rear silencer Marked by three recesses around circumference of exhaust pipe
OCTAV1A
Exhaust System
26
Components marked with * are tested by the final control diagnosis 1.9l/66 kW (TDI) Engine - Fuel Injection and Glow Plug System; Repair Group 01; Final control diagnosis.
1 - Mechanical exhaust gas recirculation valve testing page 26-7 2 - EGR solenoid valve (-N18-)* 3 - To air filter 4 - To brake servo unit 5 - Non-return valve 6 - Vacuum pump 7 - Vacuum setting element for intake manifold flap only for models 08.97 8 - Intake manifold flap change-over valve (-N239-) only for models 08.97
26
OCTAV1A
1 - Vacuum setting element for intake manifold flap 2 - Intake manifold flap change-over valve (-N239-) 3 - Distributor 4 - Non-return valve white connection points to charge pressure control solenoid valve -N75-). 5 - Vacuum unit 6 - To air filter 7 - Charge pressure control solenoid valve (-N75-)* 8 - Vacuum setting element for charge pressure control valve part of turbocharger, cannot be replaced separately 9 - EGR solenoid valve (-N18-)* 10 - Mechanical exhaust gas recirculation valve testing page 26-7 11 - Vacuum pump 12 - Brake servo unit 13 - Non-return valve
OCTAV1A
Exhaust System
26
26
Exhaust System
OCTAV1A
1 - Intake manifold 2 - O-ring replace 3 - Induction pipe with mechanical exhaust gas recirculation valve
4 - Mechanical exhaust gas recirculation valve component of the induction pipe cannot be replace separately testing page 26-7 5 - 10 Nm 6 - From Turbocharger
OCTAV1A
7 - Gasket replace 8 - 25 Nm 9 - Connecting tube from radiator to induction pipe only on engines ALH with automatic gearbox 10 - Connecting tube from exhaust manifold to induction pipe 11 - Exhaust manifold 12 - 25 Nm replace
Exhaust System 13 - Connecting tube from exhaust manifold to radiator only on engines ALH with automatic gearbox 14 - To heat exchanger for heating 15 - Radiator for exhaust gas recirculation only on engines ALH with automatic gearbox 16 - From connection fitting connection of heating 17 - To expansion reservoir
26