Audi A4 Owners & Service Manuals

Audi A4: Refrigerant Circuit, Cleaning (Flushing), with Refrigerant R134a

Audi A4 (B9) 2016-2025 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit / Refrigerant Circuit, Cleaning (Flushing), with Refrigerant R134a

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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

 Flushing Circuit Block Diagrams

  Note The arrows in the following illustrations show the direction of refrigerant flow during flushing (refrigerant flows in opposite direction of flow when Air Conditioning (A/C) system is

 Electrically Driven A/C Compressor, Rinsing (Remove Refrigerant Oil)

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

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 Sliding/tilting sunroof

Operation Applies to: vehicles with sliding/tilting sunroof Fig. 40 Section of front headliner: sliding/tilting sunroof button The sunshade can be opened and closed manually in any position when the roof is closed. The sunshade opens automatically when the roof is opened. Tilting and closing the ro

 Axle Alignment Information

Wheel alignment must only performed using VW/Audi-approved alignment equipment. Each time wheels are aligned, both front and rear wheels must be aligned. Otherwise, the correct driving handling of the vehicle cannot be ensured.   Note Axle alignment should not be performed until the vehic

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