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:
Special Tools
Special tools and workshop equipment required
Used Oil Collection and Extraction Unit -SMN372500-
Locking Pin -T10492-
Retaining Strap -T40155-
Oil Sump Assembly Pin -T40199-
Gearbox Support -T40206- and Gearbox Support - Drilling
Template -T40206/3-
Gearbox Assembly Tool -T40
Antenna Wires, Repairing
Aerial Cable Repair Set VAS6720
Special tools and workshop equipment required
Aerial Cable Repair Set -VAS6720-
The Aerial Cable Repair Set -VAS6720- makes it possible to
perform a quality repair on antenna wires RG 174 (blue) and RTK
031 (black). The set contains the insulation removal tools a
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