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
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:
Disposal
Front Gas-Filled Shock Absorbers, Venting and Draining
Special tools and workshop equipment required
Hand drill
3 mm diameter drill bit.
6 mm diameter drill bit
Oil collecting container
Protective eyewear
Procedure
- Secure the gas-filled shock absorber vertically in a vise
with the pis
Headrest, Removing and Installing
Removing
- Set the backrest toward the rear at an angle.
- Grip the rear cover -1- at the
lower edge and push it upward out of the locking mechanism in
the direction of -arrows-.
- Move the headrest all the way up.
- Press down on the release ring -arrow-
on the left headrest
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