Audi A4: Refrigerant Circuit
Audi A4 (B9) 2016-2025 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:
Overview - Transmission
1 - Rear Final Drive
Only for AWD
Removing and installing. Refer to
→ Rear Final Drive; Rep. Gr.39; Final Drive; Final Drive, Removing and
Installing.
2 - Driveshaft
Only for AWD
Removing and installing. Refer to
→ Rear Final Drive; Rep. Gr
A-Pillar Trim Panel, Removing and Installing
Special tools and workshop equipment required
Trim Removal Wedge -3409-
Lever - Fuel Line -T10468-
Omega Clip Tool -T40280-
Caution
This procedure contains mandatory replaceable parts.
Refer to component overview and parts catalog prior to
starting procedure.
Mandatory Replacement Pa
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