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.
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SEE MORE:
Status display
Fig. 16 Center display: frequently used symbols in the status
bar
The symbols in the status bar show you information
at a glance, such as ifa mobile device is connected
or if there is a data connection. The most
common symbols are listed in the table.
There is a data connection. The bar indicates
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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