Audi A4: Refrigerant Circuit Components, Replacing
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit Components, Replacing
- General Information
- Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer
- Compressor, Replacing without the Need for Flushing Refrigerant Circuit
- Compressor, Replacing on Account of Leakage or Internal Damage
- Receiver/Dryer or Accumulator and Restrictor, Replacing after Cleaning Refrigerant Circuit
- A/C Compressor Regulator Valve -N280-, Removing and Installing
READ NEXT:
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
Leaking or Damaged Components except A/C Compressor, Reservoir or
Receiver/Dryer
The refrigerant circuit was completely empty (for example
with larger leak or cracked hose)
Note
In the event of only a minor leak with slow escape of
refrigerant (e.g. at a small leakage
Compressor, Replacing without the Need for Flushing Refrigerant Circuit
Note
Cleaning the refrigerant circuit means flushing with
refrigerant R134a. Refer to
→ Chapter "Refrigerant Circuit, Cleaning (Flushing), with
Refrigerant R134a".
If a faulty A/C
SEE MORE:
Front Bumper Cover, Removing and Installing
To complete the procedure, a second technician is required to be at the
following position.
Special tools and workshop equipment
required
Pliers -T40172C-
Adapter -T40172/1-
Removing
- Push in the front wheels and loosen the wheel housing liner near
the front bumper cover. Refer to
→&
Transmission Control
Component Location Overview - Transmission Control
1 - DSG Transmission Mechatronic -J743-
Removing and installing. Refer to
→ Chapter "Mechatronic, Removing and Installing".
2 - Transmission Fluid Temperature Sensor -G93-
3 - Temperature Sensor In Control M
© 2019-2026 Copyright www.audia4b9.com
