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.
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SEE MORE:
Coolant Pump, Removing and Installing
Removing
- Remove the engine cover. Refer to
→ Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.10; Engine
Cover; Engine Cover, Removing and Installing.
- Drain the coolant. Refer to
→ Chapter "Coolant, Draining and Filling".
- Disconnect the connectors -
Driver Side Instrument Panel Cover, Removing and Installing
Removing
- Remove the driver side instrument panel side cover. Refer to
→ Chapter "Instrument Panel Side Cover, Removing and Installing".
- Equipped on some models: Open the storage compartment cover
-1- and remove the screws
-arrows B-.
- Remove the screws -arrows A-.
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