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:
Microphone Unit in Front Roof Module -R164-, Removing and Installing
The Microphone Unit in Front Roof Module -R164- in the Front
Interior Lamp -W1- is comprised of the Interior Microphone
-R74-, the Left Front Microphone -R140- and the Right Front
Microphone -R141-. The individual microphones can be replaced
separately.
Removing
- Turn off the ignition and
Trim Molding, Removing and Installing
Trim Molding, Removing and Installing, Front Door
Removing
- Using a small screwdriver -2-, pry
the trim molding -1- out of the
clip at the opening in the direction of
-arrow-.
- Carefully pry the entire length of the trim molding out of the
window guide -3- and remove it.
Installing
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