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
READ NEXT:
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:
Window Regulator, Removing and Installing
Removing
- Remove the rear door window. Refer to
→ Chapter "Rear Door Window, Removing and Installing".
- Release the retainers -3 and 4- on
the threaded pins -5- for the
window regulator using an 11 mm socket. To do so, slide the
socket onto the threaded pin.
- Remove the
Speed warning system
Description
Applies to: vehicles with speed warning system
The speed warning system helps the driver to
stay below a specified maximum speed. A warning
threshold can be set in the MMI for this purpose.
Once the speed slightly exceeds the stored
threshold, the speed warning system will alert
the d
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