Audi A4: Refrigerant Circuit
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit
- A/C System Repair Information
- Using Service Station
- Refrigerant Circuit, Flushing with Compressed Air and Nitrogen
- Refrigerant Circuit, Cleaning (Flushing), with Refrigerant R134a
- Refrigerant Circuit, Determining Leaks
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A/C System Repair Information
Air conditioning systems designed for refrigerant R12 are
only to be filled with refrigerant R134a if certain requirements
are fulfilled. Refer to
→ Chapter "Refrigerant Circuit, Convertin
General Information
Vehicles with a high-voltage system (hybrid vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by electric shock.
- I
SEE MORE:
Overview - Telephone
Overview - Telephone, Bluetooth Hands-Free
Calling, 9ZX
The Information Electronics Control Module 1 -J794- is
installed with the Microphone Unit In Front Roof Module -R164-
and is exclusively for hands-free calling. The connection to the
Cellular Telephone -R54- takes place via Bluetooth.
The B
Steering wheel
General information
Make sure that:
The distance between your upper body and the
steering wheel is at least 10 inches (25 cm)
Your arms are bent slightly at the elbows
You have a sufficient view of the area around
the vehicle and you have a clear view of the instrument
cluster and head-up dis
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