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:
Service Station, Important Usage Information
Observe the following with regard to service station
operation. Refer to the Parts Catalog (Tools; Special Tools and
Equipment: A/C and Heating).
- The filters and dryers installed must be replaced at the
latest on completion of the service life specified in the
relevant operating instructi
General information
Park the vehicle as far as possible from moving
traffic in the event of a breakdown. In the event
of a flat tire, park the vehicle on a level surface.
If you are on a steep hill, be especially careful.
Set the parking brake.
Switch the emergency flashers on.
Have the passengers exit the vehi
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