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:
Floor Heat Shield, Removing and Installing
Plenum Chamber Bulkhead Heat Shield, Removing and Installing
Removing
- Remove the plenum chamber bulkhead. Refer to
→ Chapter "Plenum Chamber Bulkhead, Removing and Installing".
- Remove the lock washers -arrows-.
- Remove the heat shield -1- from the
plenum chamber bulkhead
Connector Housings, Releasing and Disassembling
Information on Releasing and Disassembling Connector Housings
Note
Observe general notes for repairs on the vehicle electrical
system. Refer to
→ Chapter "Vehicle Electrical System, General Repair
Information".
Always use the release tools intended for the releasing
process. Un
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