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:
General information
Applies to: vehicles with Audi connect
Depending on the country and the vehicle equipment,
the following functions may be available:
Audi connect Infotainment
Audi connect vehicle control
WARNING
To reduce the risk of an accident, only use
Audi connect services and the Wi-Fi hotspot
only if
Windshield washer
system
Fig. 163 Motor compartment: washer fluid reservoir cap
The windshield washer reservoir contains the
cleaning solution for the windshield/rear window*
and the headlight washer system. The reservoir capacity
can be found.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean wat
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