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:
Vehicles with Restrictor, Receiver/Dryer and A/C Compressor Regulator Valve
-N280-, Checking Pressures, Externally Regulated Compressor
General Information
Note
Connect the Air Conditioning (A/C) service station. Refer to
→ Chapter "A/C Service Station, Connecting".
Observe the test requirements. Refer to
→ Chapter "Pressures, Checking".
If a malfunction occurs at only one evaporator in vehicles
with two
Air Filter
Overview - Air Filter Housing
1 - Snow Screen
Market-Specific Version
2 - Air Duct
On the lock carrier
Clean off any salt and dirt
3 - Water Drain
Clean
4 - Mount
For the air filter housing
5 - Sealing Piece
6 - Air Duct
Mar
© 2019-2026 Copyright www.audia4b9.com
