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
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Condenser
The condenser conducts heat from compressed refrigerant gas
to the ambient air.
This condenses the refrigerant gas to fluid.
Note
Depending on the version of the refrigerant circuit, the
receiver/dryer is installed (integrated) either on the condenser
or inside the condenser. Refer to
Subframe Mount
Overview - Subframe Mount
1 - Bolt
70 Nm for FWD vehicles (M10x40 10.9)
40 Nm +90º for AWD vehicles (M10x40 8.8)
2 - Tunnel Crossmember
Removing and installing. Refer to
→ Chapter "Tunnel Crossmember, Removing and Installing".
3 - Stop
For the transmi
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