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
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:
Indicator lights overview
Description
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or malfunctions.
Some warning and indicator lights
turn on when you switch the ignition on and must turn off when the drive system
is switched on or
while driving.
With some indicator lights, mess
General Information
Caution
There is a risk of damaging the threads in the
vehicle body.
The bolts and nuts at all suspension parts must not
be loosened or tightened with an impact wrench.
Always install the bolts and nuts by hand for the
first few turns.
When installing waxed components, contact surf
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