When the Film was produced, the real 01-83-02 was under contract with the Malteser Hilfsdienst gGmbH (Order of Malta). The regular Staff was consulted by production crew and is mentioned in the credits. Every second year the Cologne Fire Brigade sets out a new contract for the different ambulances.
The real ambulance car 01-83-02 in Cologne is a newer car and is driven by the German Red Cross.
Jessica Schwarz wasn't pregnant during filming. She has a fake belly and she was partly replaced by a double in the sex scene.