Audi A4: Refrigerant Circuit, Flushing with Compressed Air and Nitrogen
Audi A4 (B9) 2016-2025 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit / Refrigerant Circuit, Flushing with Compressed Air and Nitrogen
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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
Refrigerant Circuit, Flushing
Note
In the case of vehicles on which the refrigerant lines have
no threads for connection of Adapter Set -1785-. Use for example
a flushing gun with rubber end piece or an adapter from th
SEE MORE:
Front Peripheral Camera -R243-, Removing and Installing
The Front Peripheral Camera -R243- is installed in the
radiator grille under the Audi rings.
Removing
- Turn off the ignition and all electrical equipment and
remove the ignition key.
- Remove the front bumper cover. Refer to
→ Body Exterior; Rep. Gr.63; Front Bumper; B
Climate control system
Description
Your vehicle has a deluxe automatic climate control
system with three zones in which the temperature,
air distribution, and air supply can be
adjusted separately for the front left and right
sides, as well as the temperature in the rear.
The climate control system warms, cools, dehumi
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