Brake System: Section
Brake System: Section
Brake System: Section
BR
A
B
SECTION
BRAKE SYSTEM C
E
CONTENTS
PRECAUTION ............................................... 3 PERIODIC MAINTENANCE ........................ 13 BR
PRECAUTIONS ................................................... 3 BRAKE PEDAL ................................................. 13
Precaution for Supplemental Restraint System Adjustment ...............................................................13 G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................... 3 BRAKE FLUID .................................................. 14
Precaution for Procedure without Cowl Top Cover...... 3 Drain and Refill ........................................................14
Bleeding Brake System ...........................................14 H
Precaution for Brake System .................................... 3
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along C
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING: D
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, it is recommended that all mainte-
nance and repair be performed by an authorized NISSAN/INFINITI dealer. E
• Improper repair, including incorrect removal and installation of the SRS, can lead to personal injury
caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module,
see the SR section.
BR
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
G
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the H
Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the I
battery or batteries, and wait at least three minutes before performing any service.
Precaution for Procedure without Cowl Top Cover INFOID:0000000012894306
J
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc. to prevent damage to
windshield. K
M
PIIB3706J
WARNING:
Clean any dust from the front brake and rear brake using a vacuum dust collector. Do not blow by
compressed air. O
• Brake fluid use refer to MA-12, "Fluids and Lubricants".
• Do not reuse drained brake fluid.
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off P
immediately and wash with water if it gets on a painted surface.
• Always clean with new brake fluid when cleaning the master cylinder, brake caliper and other components.
• Do not use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and cause
improper operation.
• Always loosen the brake tube flare nut with a flare nut wrench.
The actual shape of the tools may differ from those illustrated here.
Tool number Description
(TechMate No.) C
Tool name
— Measuring brake pedal height
(J-46532) D
Brake height tool
LFIA0227E
BR
38-PFM92 Refinishing rotors
( — )
ProCut™PFM Series Lathe
G
H
ALFIA0092ZZ
S-NT360 L
Power tool Loosening nuts, screws and bolts
N
PIIB1407E
ZZC1313D
×: Applicable
Reference page
BRAKE
Noise
Shake
Shimmy, Shudder
NVH Troubleshooting Chart
×
Brake pad - uneven wear BR-11, BR-12
×
SYMPTOM DIAGNOSIS
Shims damaged
×
Disc brake rotor imbalance BR-11, BR-12, BR-16, BR-18
×
×
Disc brake rotor damage BR-11, BR-12, BR-16, BR-18
×
Disc brake rotor runout
×
BR-11, BR-12
BR-6
×
Disc brake rotor deformation BR-11, BR-12
×
Disc brake rotor deflection BR-11, BR-12
×
Disc brake rotor rust BR-11, BR-12
×
Disc brake rotor thickness variation BR-11, BR-12, BR-16, BR-18
×
PROPELLER SHAFT DLN-87 (AWD)
×
× DIFFERENTIAL TM-187 (AWD)
FAX-5
×
×
×
AXLE
RAX-5
FSU-5
×
×
×
SUSPENSION
RSU-4
×
×
×
TIRE WT-61
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
×
×
WHEEL WT-61
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FAX-5
× × DRIVE SHAFT
RAX-5 (AWD)
STEERING ST-28
×
×
BRAKE PEDAL
< BASIC INSPECTION >
BASIC INSPECTION A
BRAKE PEDAL
Inspection INFOID:0000000012894311
B
BR
AWFIA1044ZZ
Brake pedal height (H) from dash lower panel (2) Refer to BR-52, "Brake Pedal". K
Clearance (A) between brake pedal bracket (1), stop lamp switch (3) and brake pedal position
Refer to BR-52, "Brake Pedal".
switch (4) contact ends
Brake pedal full stroke (S) Refer to BR-52, "Brake Pedal".
L
Brake pedal play (P) Refer to BR-52, "Brake Pedal".
ALFIA0249ZZ
BRAKE LINE
1. Check brake line (tubes and hoses) for cracks, deterioration or other damage. Replace any damaged
parts.
2. Check for brake fluid leakage by fully depressing brake pedal
while engine is running.
CAUTION:
If brake fluid leakage occurs around joints, retighten or
replace damaged parts as necessary.
SBR389C
BR
Operation
Depress the brake pedal several times at five second intervals with
the engine stopped. Start the engine with the brake pedal fully
depressed. Check that the clearance between brake pedal and dash
lower panel decreases.
NOTE:
A slight impact with a small click may be felt on the pedal when the
brake pedal is fully depressed. This is normal brake system opera-
tion.
BRA0037D
Vacuum Inspection
Idle the engine for one minute to apply vacuum to the brake booster.
Stop the engine. Depress the brake pedal several times at five sec-
ond intervals until the accumulated vacuum is released to atmo-
spheric pressure. Check that the clearance between brake pedal
and dash lower panel gradually increases (A → B → C) each time
the brake pedal is depressed during this operation.
JPFIA0043ZZ
Depress the brake pedal with the engine running. Then stop the
engine while holding down the brake pedal. Check that the brake
pedal stroke does not change after holding down the brake pedal for
30 seconds or more.
NOTE:
A slight impact with a small click may be felt on the pedal when the
brake pedal is fully depressed. This is normal brake system opera-
tion.
JPFIA0044ZZ
BR
SBR020B
INSPECTION
Uneven Wear
Check for uneven wear of the disc brake rotor using a micrometer.
Replace the disc brake rotor if the thickness is below the wear limit.
SBR020B
BR
JPFIA0003ZZ
G
5. Adjust the brake pedal height to the specification. Refer to BR-52, "Brake Pedal".
6. Tighten the input rod lock nut to specification. Refer to BR-32, "Exploded View". H
7. Turn the stop lamp switch and brake pedal position switch 45° clockwise.
8. Connect the harness connectors to the stop lamp switch and brake pedal position switch.
9. Check the brake pedal for smooth operation. I
CAUTION:
The stop lamp must turn off when the brake pedal is released.
10. Install instrument lower panel LH. Refer to IP-24, "Removal and Installation". J
CAUTION:
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may damage paint. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Prior to repair, turn the ignition switch OFF, disconnect the harness connector from the ABS actuator
and electric unit (control unit) or negative battery terminal. Refer to PG-112, "Removal and Installa-
tion".
• Refill brake system with new brake fluid. Refer to MA-12, "Fluids and Lubricants".
• Do not reuse drained brake fluid.
DRAINING
1. Turn ignition switch OFF and disconnect the harness connector from the ABS actuator and electric unit
(control unit) or negative battery terminal. Refer to PG-112, "Removal and Installation".
2. Connect a vinyl tube to bleeder valve.
3. Depress brake pedal, loosen bleeder valve, and gradually
remove brake fluid.
CAUTION:
Do not allow reservoir tank to empty as this may cause
damage to master cylinder internal components.
BRA0007D
REFILLING
1. Make sure no foreign material is in the reservoir tank or sub
tank, and refill with new brake fluid.
CAUTION:
Do not reuse drained brake fluid.
2. Refill the brake system as follows:
• Depress the brake pedal.
• Loosen bleeder valve.
• Slowly depress brake pedal to 2/3 of the brake pedal full
stroke.
• Tighten bleeder valve.
• Release brake pedal. PFIA0403J
Repeat this operation at intervals of two or three seconds until
all old brake fluid is discharged. Add new brake fluid to sub tank frequently.
CAUTION:
Do not allow reservoir tank to empty as this may cause damage to master cylinder internal compo-
nents.
3. Bleed the air out of the brake hydraulic system. Refer to BR-14, "Bleeding Brake System".
Bleeding Brake System INFOID:0000000012894321
CAUTION:
• While bleeding, pay attention to brake fluid level.
• Do not allow reservoir tank to empty as this may cause damage to master cylinder internal compo-
nents.
• Before working, disconnect the harness connector from the ABS actuator and electric unit (control
unit) or negative battery terminal. Refer to PG-112, "Removal and Installation".
1. Turn ignition switch OFF and disconnect the harness connector from the ABS actuator and electric unit
(control unit) or negative battery terminal. Refer to PG-112, "Removal and Installation".
2. Connect a vinyl tube to front (RH) brake caliper bleeder valve.
3. Fully depress brake pedal 4 or 5 times.
Revision: December 2015 BR-14 2016 Murano NAM
BRAKE FLUID
< PERIODIC MAINTENANCE >
4. With brake pedal depressed, loosen bleeder valve to bleed air in brake line, and then tighten it immedi-
ately. A
5. Repeat steps 3 and 4 until all of the air is out of the brake line.
6. Tighten the bleeder valve to the specified torque. Refer to BR-46, "Exploded View" (front disc brake), BR-
49, "Exploded View" (rear disc brake). B
7. Repeat steps 2 through 6, with sub tank filled at least halfway. Bleed the air in the following order from the
front (RH), front (LH), rear (RH), rear (LH).
C
BR
Check brake pad wear thickness from an inspection hole (A) on cyl-
inder body. Check using a scale if necessary.
AWFIA0891ZZ
CAUTION:
• Burnish contact surfaces between brake pads and disc brake rotor according to the following proce-
dure after refinishing the disc brake rotor, replacing brake pads or if a soft pedal occurs at very low
mileage.
• Be careful of vehicle speed. Brakes do not operate firmly/securely until pads and disc brake rotor are
securely seated.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive the vehicle on straight, flat road.
2. Depress the brake pedal until the vehicle stops.
3. Release the brake pedal for a few minutes to allow the brake components to cool.
4. Repeat steps 1 to 3 until pad and disc brake rotor are securely seated.
DISC BRAKE ROTOR
DISC BRAKE ROTOR : Inspection INFOID:0000000013380834
APPEARANCE
Check surface of disc brake rotor for uneven wear, cracks or damage. Replace if any abnormal conditions
exist.
RUNOUT
1. Check the wheel bearing axial end play before the inspection. Refer to FAX-6, "Inspection".
2. Secure the disc brake rotor to the wheel hub and bearing with
wheel nuts at two wheel nut locations.
3. Measure the runout using a dial gauge 10 mm (0.39 in) from the
disc brake rotor edge.
5. Refinish the disc brake rotor if the runout is outside the limit
even after performing the above operation. When refinishing, use Tool.
THICKNESS
Check the thickness of the disc brake rotor using a micrometer. C
Replace the disc brake rotor if the thickness is below the wear limit.
BR
SBR020B
G
CAUTION:
• Burnish contact surfaces between brake pads and disc brake rotor according to the following proce-
dure after refinishing the disc brake rotor, replacing brake pads or if a soft pedal occurs at very low
mileage. H
• Be careful of vehicle speed. Brakes do not operate firmly/securely until pads and disc brake rotor are
securely seated.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution. I
1. Drive the vehicle on straight, flat road.
2. Depress the brake pedal until the vehicle stops.
3. Release the brake pedal for a few minutes to allow the brake components to cool. J
4. Repeat steps 1 to 3 until pad and disc brake rotor are securely seated.
INSPECTION
Check brake pad wear thickness from an inspection hole (A) on cyl-
inder body. Check using a scale if necessary.
ALFIA0226ZZ
CAUTION:
• Burnish contact surfaces between brake pads and disc brake rotor according to the following proce-
dure after refinishing the disc brake rotor, replacing brake pads or if a soft pedal occurs at very low
mileage.
• Be careful of vehicle speed. Brakes do not operate firmly/securely until pads and disc brake rotor are
securely seated.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive the vehicle on straight, flat road.
2. Depress the brake pedal until the vehicle stops.
3. Release the brake pedal for a few minutes to allow the brake components to cool.
4. Repeat steps 1 to 3 until pad and disc brake rotor are securely seated.
DISC BRAKE ROTOR
DISC BRAKE ROTOR : Inspection INFOID:0000000013381105
APPEARANCE
Check surface of disc brake rotor for uneven wear, cracks or damage. Replace if any abnormal conditions
exist.
RUNOUT
1. Check the wheel bearing axial end play before the inspection. Refer to RAX-6, "Inspection".
2. Secure the disc brake rotor to the wheel hub and bearing with
wheel nuts at two wheel nut locations.
3. Measure the runout using a dial gauge 10 mm (0.39 in) from the
disc brake rotor edge.
5. Refinish the disc brake rotor if the runout is outside the limit
even after performing the above operation. When refinishing, use Tool.
BR
SBR020B
AWFIA1121ZZ
REMOVAL
1. Remove instrument lower panel LH. Refer to IP-24, "Removal and Installation".
2. Remove the lower nut from the brake pedal assembly.
3. Disconnect the harness connectors from the stop lamp switch and brake pedal position switch.
4. Remove wire harness clips from brake pedal assembly.
5. Remove snap pin (1) and clevis pin (2) from the brake pedal
assembly.
CAUTION:
Do not reuse the snap pin or clevis pin
JPFIA0019ZZ
6. Remove the remaining nuts from the brake pedal and remove the brake pedal.
CAUTION:
WITHOUT ICC
AWFIA1150ZZ
1. Brake tube (RH) 2. ABS actuator and electric unit (con- 3. Master cylinder primary to ABS actu-
trol unit) ator brake tube
4. Master cylinder secondary to ABS 5. Master cylinder 6. Brake booster
actuator brake tube
7. Brake tube (LH) 8. ABS actuator to connector brake 9. ABS actuator to connector brake
tube (RH) tube (LH)
10. Connector 11. Lock plates 12. Front brake hose
13. Copper sealing washers A. To front brake hose B. To rear brake pipe
BR
I
AWFIA1151ZZ
1. Brake tube (RH) 2. ABS actuator and electric unit (con- 3. Master cylinder primary to ABS actu-
trol unit) ator brake tube J
4. Master cylinder secondary to ABS 5. Master cylinder 6. Brake booster
actuator brake tube
7. Brake tube (LH) 8. ABS actuator to connector brake 9. ABS actuator to connector brake K
tube (RH) tube (LH)
10. Connector 11. Lock plates 12. Front brake hose
13. Copper sealing washers A. To front brake hose B. To rear brake pipe L
WITHOUT ICC
AWFIA1127ZZ
1. ABS actuator and electric unit (con- 2. Front disc brake 3. Master cylinder assembly
trol unit)
4. Brake booster 5. Connector 6. Rear disc brake
A. Brake tube B. Brake hose
: Flare nut
: Union bolt
WITH ICC
AWFIA0895ZZ
1. ABS actuator and electric unit (con- 2. Front disc brake 3. Master cylinder assembly
trol unit)
4. Brake booster 5. Connector 6. Rear disc brake
A. Brake tube B. Brake hose
: Flare nut
: Union bolt
CAUTION:
Revision: December 2015 BR-24 2016 Murano NAM
BRAKE PIPING
< REMOVAL AND INSTALLATION >
• All hoses and piping (tubes) must be free from excessive bending, twisting and pulling.
• Make sure there is no interference with other parts when turning steering both clockwise and coun- A
terclockwise.
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe
it off immediately and wash with water if it gets on a painted surface.
B
• Do not allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing. C
REMOVAL
1. Remove sub tank cap.
D
2. Remove wheels and tires using power tool.
3. Loosen the flare nut with a flare nut wrench and separate the brake tube from the hose.
CAUTION: E
• Do not scratch the flare nut and the brake pipe.
• All brake hoses and pipes must be free from excessive bending, twisting and pulling.
4. Remove the union bolt (A) and the brake hose from the brake
caliper. Remove and discard the copper sealing washers (1). BR
CAUTION:
Do not reuse copper sealing washers.
5. Remove the lock plates and remove the brake hose. G
AWFIA0795ZZ
I
INSTALLATION
CAUTION:
Do not allow foreign matter (e.g. dust) and oils other than brake fluid to enter the sub tank and reser- J
voir tank.
1. Assemble the union bolt (A) and the copper sealing washers (1)
to the brake hose and install it as an assembly to the brake cali-
K
per. Align the brake hose L-pin by aligning it with the brake cali-
per hole, and tighten the union bolt (1) to the specified torque.
CAUTION:
Do not reuse copper sealing washers. L
AWFIA0795ZZ
N
2. Install the brake pipe to the brake hose, temporarily tighten the flare nut by hand until it does not rotate fur-
ther, and attach the brake hose to the bracket with the lock plates.
CAUTION:
Check that the brake hoses and pipes are not bent or twisted. O
3. Tighten the flare nut to the specified torque with a flare nut crowfoot and a torque wrench.
CAUTION:
Do not scratch the flare nut and the brake pipe. P
4. Refill with new brake fluid and perform the air bleeding. Refer to BR-14, "Bleeding Brake System".
CAUTION:
Do not reuse drained brake fluid.
5. Install the wheels and tires. Refer to WT-66, "Removal and Installation".
6. Perform inspection after installation. Refer to BR-8, "Inspection".
REAR
Revision: December 2015 BR-25 2016 Murano NAM
BRAKE PIPING
< REMOVAL AND INSTALLATION >
REAR : Exploded View INFOID:0000000012894329
ALFIA0259GB
1. Rear brake pipe assembly - RH 2. Rear brake pipe assembly - LH 3. Lock plate
4. Rear brake hose 5. Union bolt 6. Copper sealing washers
A. To brake pipe connector B. To rear brake hose Front
WITHOUT ICC
AWFIA1127ZZ
1. ABS actuator and electric unit (con- 2. Front disc brake 3. Master cylinder assembly A
trol unit)
4. Brake booster 5. Connector 6. Rear disc brake
A. Brake tube B. Brake hose
B
: Flare nut
: Union bolt
C
WITH ICC
BR
H
AWFIA0895ZZ
1. ABS actuator and electric unit (con- 2. Front disc brake 3. Master cylinder assembly I
trol unit)
4. Brake booster 5. Connector 6. Rear disc brake
A. Brake tube B. Brake hose J
: Flare nut
: Union bolt
K
REAR : Removal and Installation INFOID:0000000012894331
CAUTION: L
• All hoses and piping (tubes) must be free from excessive bending, twisting and pulling.
• The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble the
parts. Replace applicable part with a new one, if necessary.
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe M
it off immediately and wash with water if it gets on a painted surface.
• Do not allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
NOTE: N
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL O
1. Remove sub tank cap.
2. Remove wheels and tires using power tool.
3. Loosen the flare nut with a flare nut wrench and separate the brake tube from the hose. P
CAUTION:
• Do not scratch the flare nut and the brake pipe.
• All brake hoses and pipes must be free from excessive bending, twisting and pulling.
AWFIA0795ZZ
INSTALLATION
CAUTION:
Do not allow foreign matter (e.g. dust) and oils other than brake fluid to enter the sub tank and reser-
voir tank.
1. Assemble the union bolt (A) and the copper sealing washers (1)
to the brake hose and install it as an assembly to the brake cali-
per. Align the brake hose L-pin by aligning it with the brake cali-
per hole, and tighten the union bolt (1) to the specified torque.
CAUTION:
Do not reuse copper sealing washers.
AWFIA0795ZZ
2. Install the brake pipe to the brake hose, temporarily tighten the flare nut by hand until it does not rotate fur-
ther, and attach the brake hose to the bracket with the lock plate.
CAUTION:
Check that the brake hoses and pipes are not bent or twisted.
3. Tighten the flare nut to the specified torque with a flare nut crowfoot and a torque wrench.
CAUTION:
Do not scratch the flare nut and the brake pipe.
4. Refill with new brake fluid and perform the air bleeding. Refer to BR-14, "Bleeding Brake System".
CAUTION:
Do not reuse drained brake fluid.
5. Install the wheels and tires. Refer to WT-66, "Removal and Installation".
6. Perform inspection after installation. Refer to BR-8, "Inspection".
BR
I
AWFIA1068ZZ
CAUTION: M
• Do not spill or splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Do not reuse drained brake fluid.
N
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
O
REMOVAL
1. Remove sub tank cap.
P
ALKIA2465ZZ
3. Remove air cleaner case as an assembly. Refer to EM-26, "Removal and Installation".
4. Disconnect the brake pipes from the master cylinder assembly with a flare nut wrench.
CAUTION:
Do not scratch the flare nut or the brake pipe.
5. Remove the master cylinder assembly.
CAUTION:
Do not depress the brake pedal after the master cylinder assembly is removed.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Do not spill or splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Do not reuse master cylinder assembly nuts.
• Do not reuse O-ring.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to the
brake booster (A) when installing the master cylinder assembly to
the brake booster.
• Temporarily tighten the brake tube flare nut to the master cylinder
assembly by hand. Then tighten it to the specified torque with a
flare nut crowfoot and torque wrench. Refer to BR-22, "FRONT :
Exploded View".
CAUTION:
Do not scratch the flare nut or the brake pipe.
• After installation, perform the air bleeding. Refer to BR-14, "Bleed-
ing Brake System".
JPFIA0013ZZ
DISASSEMBLY
CAUTION:
• Do not disassemble the cylinder body.
• Remove the reservoir tank only when necessary.
• Do not drop removed parts. The parts must not be reused if they are dropped.
1. Secure the master cylinder assembly in a vise.
CAUTION:
Always use copper plates or cloth between vise and cylinder body. Do not overtighten the vise.
JPFIA0303ZZ
D
ASSEMBLY
1. Apply new brake fluid to the grommets and install them to the cylinder body.
CAUTION:
E
Do not use mineral oil such as gasoline or light oil.
2. Install the reservoir tank to the cylinder body.
CAUTION:
Do not drop the parts during installation. The parts must not be reused if they are dropped. BR
3. Tilt the reservoir tank so that the pin can be inserted. Insert a pin
using suitable tools. G
CAUTION:
Do not reuse the pin.
H
JPFIA0303ZZ
J
AWFIA1069ZZ
REMOVAL
1. Remove instrument lower panel LH. Refer to IP-24, "Removal and Installation".
2. Remove harness clip.
3. Remove the snap pin (1) and clevis pin (2) from the brake pedal.
JPFIA0019ZZ
4. Remove the bolt (A) from the Intelligent Key® warning buzzer
(1) from the strut tower and place Intelligent Key® warning
buzzer (1) aside.
ALFIA0495ZZ
BR
JPFIA0020ZZ
ALFIA0229ZZ
REMOVAL
1. Remove the sub tank bracket nuts (A), release the brake fluid
level switch harness clips (B) and position the sub tank assem-
bly (1) aside.
ALKIA2465ZZ
BR
SBR225B
ALFIA0512ZZ
REMOVAL
WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust collector to minimize the hazards of air-
borne particles or other material.
CAUTION:
• Do not depress the brake pedal while removing the brake pads because the pistons may pop out.
• It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of brake caliper. For brake pad removal, hang brake caliper with a wire so as not to
stretch brake hose.
• If brake fluid or grease adheres to the brake caliper or disc brake rotor, quickly wipe it off.
• Do not reuse drained brake fluid.
1. Observe brake fluid level in the sub tank. Partially drain brake fluid if necessary. Refer to BR-14, "Drain
and Refill".
ALFIA0512ZZ
WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust collector to minimize the hazard of air-
borne particles or other materials.
CAUTION:
• Do not depress the brake pedal.
• Do not spill or splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Do not bend, twist or pull the brake hoses and piping.
• Do not reuse drained brake fluid.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove reservoir cap from the reservoir tank.
2. Remove front wheels and tires using power tool.
3. Secure the disc brake rotor using wheel nuts.
4. Remove union bolt, copper sealing washers, and disconnect brake hose from brake caliper. Discard the
copper sealing washers.
Revision: December 2015 BR-38 2016 Murano NAM
FRONT DISC BRAKE
< REMOVAL AND INSTALLATION >
CAUTION:
Do not reuse copper sealing washers. A
5. Remove slide pin bolts and the brake caliper.
CAUTION:
Do not drop brake pads or caliper. B
D
AWFIA0788ZZ
INSTALLATION
1. Install the brake pads in the torque member. G
CAUTION:
• Do not damage the piston boot.
• Do not drop the brake pads, shims, or the shim covers.
H
2. Position the brake caliper to torque member and install the slide pin bolts. Tighten to specification.
3. Assemble the union bolt (A) and the copper sealing washers (1)
to the brake hose and install it as an assembly to the brake cali-
per. Align the brake hose L-pin by aligning it with the brake cali- I
per hole, and tighten the union bolt (1) to the specified torque.
CAUTION:
Do not reuse copper sealing washers. J
4. Refill with new brake fluid and perform the air bleeding. Refer to
BR-14, "Bleeding Brake System".
CAUTION: K
• Do not reuse drained brake fluid.
• Do not spill or splash brake fluid on the disc brake rotor. AWFIA0795ZZ
5. Install the front wheels and tires. Refer to WT-66, "Removal and L
Installation".
INSPECTION AFTER INSTALLATION
1. Check the drag of front disc brake. If any drag is found, follow the procedure described below. M
2. Remove brake pads.
3. Using a suitable tool, press the pistons into the brake caliper body.
CAUTION: N
Do not damage the piston boots.
4. Install brake pads.
5. Depress the brake pedal several times. O
6. Check the drag of front disc brake again. If any drag is found, disassemble the brake caliper body.
7. Burnish contact surfaces after refinishing or replacing disc brake rotors or if a soft pedal occurs at very low
mileage. Refer to BR-52, "Brake Pedal". P
DISC BRAKE ROTOR
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1. Front disc brake rotor 2. Front wheel hub and bearing assembly 3. Splash guard
Front
REMOVAL
1. Remove front wheels and tires using power tool. Refer to WT-66, "Removal and Installation".
2. Remove front brake caliper torque member bolts. Leaving brake hose attached, reposition brake caliper
aside with wire. Refer to BR-36, "BRAKE PAD : Exploded View".
3. Place alignment marks (A) on front disc brake rotor and wheel
hub and bearing, then remove front disc brake rotor.
CAUTION:
Do not drop the disc brake rotor.
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INSTALLATION
Installation is in the reverse order of removal.
BR
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J
1. Torque member 2. Bushing 3. Piston boot
4. Slide pin boot 5. Slide pin 6. Piston
7. Piston seal 8. Brake caliper body 9. Bleeder cap K
10. Brake hose 11. Copper sealing washers 12. Inner shim cover
13. Inner shim 14. Inner pad 15. Pad retainer
16. Outer pad 17. Outer shim 18. Outer shim cover L
A. Niglube Rx-2 B. Rubber grease C. Molykote® AS-880N
N
REMOVAL
WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust collector to minimize the hazards of air-
O
borne particles or other material.
CAUTION:
• Do not depress the brake pedal while removing the brake pads because the piston may pop out.
• It is not necessary to remove bolts on torque member and brake hose except for disassembly or P
replacement of brake caliper. For brake pad removal, hang brake caliper with a wire so as not to
stretch brake hose.
• If brake fluid or grease adheres to the brake caliper or disc brake rotor, quickly wipe it off.
• Do not reuse drained brake fluid.
1. Observe brake fluid level in sub tank. Partially drain brake fluid if necessary. Refer to BR-14, "Drain and
Refill".
2. Remove the rear wheels and tires using power tool.
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BR
L
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WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust collector to minimize the hazard of air-
borne particles or other materials.
CAUTION:
• Do not depress the brake pedal.
6. Install the rear wheels and tires. Refer to WT-66, "Removal and
Installation".
INSPECTION AFTER INSTALLATION
1. Check the drag of rear disc brake. If any drag is found, follow the procedure described below.
2. Remove brake pads.
3. Using a suitable tool, press the pistons into the brake caliper body.
CAUTION:
Do not damage the piston boots.
4. Install brake pads.
5. Depress the brake pedal several times.
BR
J
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1. Rear disc brake rotor 2. Rear wheel hub and bearing 3. Splash guard K
Front
REMOVAL
1. Remove rear wheels and tires using power tool. Refer to WT-66, "Removal and Installation". M
2. Remove rear brake caliper torque member bolts. Leaving brake hose attached, reposition brake caliper
aside with wire. Refer to BR-41, "BRAKE PAD : Exploded View".
3. Place alignment marks (A) on rear disc brake rotor and wheel N
hub and bearing, then remove rear disc brake rotor.
CAUTION:
Do not drop the disc brake rotor.
O
JPDIG0066ZZ
INSTALLATION
Installation is in the reverse order of removal.
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DISASSEMBLY
1. Remove the brake caliper from the vehicle. Refer to BR-38, "BRAKE CALIPER ASSEMBLY : Removal
and Installation".
2. Remove slide pins and slide pin boots from torque member.
BRB0032D
D
4. Remove piston seals from brake caliper body using suitable tool.
CAUTION:
• Do not damage cylinder inner wall.
E
• Do not reuse piston seals.
5. Remove bleeder valve and cap.
BR
G
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ASSEMBLY
1. Install bleeder valve and cap. N
2. Apply rubber grease to each piston seal (1), and install them to
the brake caliper body.
CAUTION:
O
Do not reuse piston seal.
SFIA2399E
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4. Apply brake fluid to each piston (1). Push each piston into cylin-
der body by hand and push piston boot (2) piston-side lip into
the piston groove.
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.
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BR
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J
1. Torque member 2. Bushing 3. Piston boot
4. Slide pin boot 5. Slide pin 6. Piston
7. Piston seal 8. Brake caliper body 9. Bleeder cap K
10. Brake hose 11. Copper sealing washers 12. Inner shim cover
13. Inner shim 14. Inner pad 15. Pad retainer
16. Outer pad 17. Outer shim 18. Outer shim cover L
A. Niglube Rx-2 B. Rubber grease C. Molykote® AS-880N
N
DISASSEMBLY
1. Remove the brake caliper from the vehicle. Refer to BR-43, "BRAKE CALIPER ASSEMBLY : Removal
and Installation".
O
2. Remove slide pin boots from torque member.
3. Remove slide pin bushing from slide pin.
P
BRD0041D
5. Remove piston seal from brake caliper body using suitable tool.
CAUTION:
• Do not damage cylinder inner wall.
• Do not reuse piston seal.
6. Remove bleeder valve and cap.
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D
4. Apply brake fluid to piston (1). Push piston into brake caliper
body by hand and push piston boot (2) piston side lip into the
piston groove.
E
CAUTION:
Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from contact.
5. Apply Niglube Rx-2 grease to bushing; install bushing to slide BR
pin.
6. Apply Niglube Rx-2 grease to slide pin boots and slide pins.
7. Install slide pin boots and slide pins to torque member. G
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8. Install the brake caliper to the vehicle. Refer to BR-43, "BRAKE
CALIPER ASSEMBLY : Removal and Installation".
H
INSPECTION AFTER INSTALLATION
1. Check the drag of rear disc brake. If any drag is found, follow the procedure described below.
2. Remove brake pads. I
3. Using a suitable tool, press the pistons into the brake caliper body.
CAUTION:
Do not damage the piston boots. J
4. Install brake pads.
5. Depress the brake pedal several times.
6. Check the drag of rear disc brake again. If any drag is found, disassemble the brake caliper body. K
7. Burnish contact surfaces after refinishing or replacing disc brake rotors or if a soft pedal occurs at very low
mileage. Refer to BR-52, "Brake Pedal".
L
Unit: mm (in)
Unit: mm (in)
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Item Standard
Brake pedal height (H) 196.1 – 206.1 (7.72 – 8.11)
Clearance (A) between brake pedal bracket, stop lamp switch (3) and brake pedal position
0.74 – 1.96 (0.0291 – 0.0772)
switch (4) contact ends
Brake pedal full stroke (S) 135.8 (5.35)
Brake pedal play (P) 4.6 (0.18)
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D
Overlap distance (X) between sub-bracket (B) and slide plate (C) 5.5 ± 0.5 (0.22 ± 0.02)
BR
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When suitable tool (A) is connected to booster side 3.3 kPa (25 mmHg, 0.98 inHg) maximum vacuum loss for 15 seconds at vacuum
(B) of -66.7 kPa (-500 mmHg, -19.69 inHg)
When suitable tool (A) is connected to engine side J
No vacuum should exist.
(C)
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Input rod installation standard dimension (B)
(1): Lock nut 127.0 ± 0.5 (5.00 ± 0.02)
(2): Input rod
P
Front Disc Brake INFOID:0000000012894359
Unit: mm (in)
Item Limit
Brake pad Wear thickness 2 (0.079)
Unit: mm (in)
Item Limit
Brake pad Wear thickness 2 (0.079)
Wear thickness 14 (0.551)
Thickness variation (measured at 8 positions)* 0.010 (0.0004)
Disc brake rotor
Runout (with disc brake rotor attached to the
0.05 (0.0020) or less
vehicle)
* To check if rotor imbalance, rotor runout or rotor deformation exists.