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:
Overview - Antenna Systems
Overview - Antenna Systems, Sedan, USA
The antenna systems consist of window antennas, a Roof
Antenna - R216- and bumper antennas.
Window Antennas
Antenna -R11- (AM/FM1)/TV Antenna 1 -R55- (TV1) to the
Antenna Amplifier -R24- at the top of the right D-pillar
TV Antenna 2 -R56- (TV2) to the TV A
Fuse assignment - footwell
Fig. 183 Driver's footwell (left-hand drive vehicle): fuse
panel with plastic clip
Fig. 184 Front passenger's footwell (right-hand drive vehicle):
fuse panel with plastic clip
Fuse panel (A) (brown)
Catalytic converter heating
Engine components
Exhaust doors, fuel injectors, air intake,
motor
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