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
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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:
Keys
Key set
Fig. 26 Your vehicle key set
Vehicle key
You can unlock and lock your vehicle with the vehicle
key.
Mechanical key and release buttons for
the mechanical key
A mechanical key is integrated in the vehicle key.
To remove it, press the release button and remove
the mechanical key.
Usi
Left and Right Rear Treble Speaker -R14-/-R16-, Removing and Installing
The Left Rear Treble Speaker -R14-/Right Rear Treble Speaker
-R16--1- are inside the rear doors
at the top.
Removing and installing is identical.
Removing
- Turn off the ignition and all electrical equipment and
remove the ignition key.
- Remove the rear door trim panel. Refer to
→&nb
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