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:
ATF
ATF Level, Checking
Special tools and workshop equipment required
Vehicle Diagnostic Tester
Used Oil Collection and Extraction Unit -SMN372500-
Pressurized Gearbox Oil Filler Kit -VAS6617- with
Pressurized Gearbox Oil Filler - Hand Pump -VAS6617/1- and
Pressurized Gearbox Oil Filler - Adapter
Roof Reinforcement, Attaching to Body
Roof Reinforcement, Attaching to Body, Sedan
Special tools and workshop equipment required
Assembly adhesive. Refer to the Parts Catalog.
Procedure
- Remove the headliner. Refer to
→ Chapter "Headliner, Removing and Installing, Sedan".
- Apply adhesive beads -arrows- to
the roo
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