Audi A4 (B9) 2016-2026 Service Manual
Service Manual for fith generation Audi A4 (B9). This service manual is provided by a manufacturer explaining how to use, maintain, troubleshoot, and repair your car. Here is information about 4-Cylinder Direct Injection 2.0L 4V TFSI Engine Disassembly, Inspect and Reassemble, 7-Speed Dual Clutch Transmission (0CJ, 0CK, 0CL) technical data, repair Information. Also important data about Suspension, Wheels, Tires, Wheel Alignment, Steering, Heating, Ventilation & Air Conditioning and etc...
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Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant used is tetrafluoroethane R134a, which boils
at -26.5 ºC (-15.7 ºF) at
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