Audi A4: Refrigerant Circuit, Flushing with Compressed Air and Nitrogen
Audi A4 (B9) 2016-2026 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
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Exterior lighting
Switching the lights on and off
Fig. 42 Instrument panel: light switch with button
Light switch
Turn the light switch (1) to the corresponding position
when the ignition is switched on. The
symbol and the selected position will turn on (except
position 0).
O - The daytime running lights* will
Software update
Introduction
Applies to: vehicles with software update
You can update your vehicle's software.
The functions depend on the country and vehicle
equipment:
Update through the online system update
Map material update for the navigation system
Have the software update performed by an authorized
Aud
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