Audi A4: Refrigerant Circuit, Determining Leaks
Audi A4 (B9) 2016-2025 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit / Refrigerant Circuit, Determining Leaks
- General Information
- Refrigerant Circuit, Tracing Leaks Using Electronic Leak Detector
- Leak Detection on Refrigerant Circuit Using Leak Detection Kit -VAS6201A-
- Finding Leaks via Vacuum Test using A/C Service Station or Nitrogen Pressure Testing
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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, Tracing Leaks Using Electronic Leak Detector
Vehicles with a High Voltage System (Hybrid Vehicles)
Read and follow all of the supplemental warnings for all
work performed on vehicles with the high voltage system. Refer
to
→ Chapter "Wa
Leak Detection on Refrigerant Circuit Using Leak Detection Kit -VAS6201A-
Vehicles with a High Voltage System (Hybrid Vehicles)
Read and follow all of the supplemental warnings for all
work performed on vehicles with the high voltage system. Refer
to
→ Chapter "Wa
SEE MORE:
Rear Seat Entertainment System (RSE)
Overview - Rear Seat Entertainment System
The Rear Seat Entertainment System (RSE, 9WF) consists of:
Left Rear Information Display Control Head Control Module
-J648-/Right Rear Information Display Control Head Control
Module -J649- on the left/right front seat backrest frame
Information Electro
Battery
Battery General Information
To guarantee a long service life, the Battery -A- must be
checked, serviced and maintained as described in this manual.
The Battery -A- supplies the power to start the engine. The
Battery -A- also acts as a power reserve for the entire vehicle
electrical system.
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