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.
- I
SEE MORE:
Plenum Chamber Bulkhead, Removing and Installing
Removing
- Remove the engine cover. Refer to
→ Engine Mechanical; Rep. Gr.10; Engine Cover; Engine Cover,
Removing and Installing.
- For vehicles that have a pass-through for the coolant lines
through the plenum chamber bulkhead, drain the coolant. Refer to
→ Eng
Seat Position Sensor
Overview - Seat Position Sensor
Note
The front passenger side is shown.
1 - Connector Coupling
Connector station in the underbody under the seat.
2 - Bolt
1.2 Nm
3 - Front Passenger Occupant Detection Sensor -G128-
Only the front passenger side
Removin
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