Audi A4: Refrigerant Circuit
Audi A4 (B9) 2016-2025 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
SEE MORE:
Instrument cluster overview
Fig. 2 Instrument cluster overview (Audi virtual cockpit)
Fig. 3 Instrument cluster overview (analog)
Depending on the vehicle equipment, the following items may appear in the
instrument cluster:
Left dial
Tachometer
Tab area
Central area
Status line (one or two lines)
Right dial
Co
Immobilizer
General Information
The anti-theft immobilizer system control module can
depending on the vehicle be integrated in the following systems:
Instrument Cluster Control Module -J285-
Comfort System Central Control Module -J393-
Access/Start Authorization Control Module -J518-
Additionally dependin
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