Audi A4: Refrigerant Circuit
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit
- A/C System Repair Information
- Using Service Station
- Refrigerant Circuit, Flushing with Compressed Air and Nitrogen
- Refrigerant Circuit, Cleaning (Flushing), with Refrigerant R134a
- Refrigerant Circuit, Determining Leaks
READ NEXT:
A/C System Repair Information
Air conditioning systems designed for refrigerant R12 are
only to be filled with refrigerant R134a if certain requirements
are fulfilled. Refer to
→ Chapter "Refrigerant Circuit, Convertin
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
SEE MORE:
Door Arrester, Removing and Installing
Removing
- Move the door window into the "closed" position.
- Remove the door trim panel. Refer to
→ Body Interior; Rep. Gr.70; Front Door Trim Panels; Front Door
Trim Panel, Removing and Installing.
- Remove the speaker. Refer to
→ Communication; Rep.
Emergency call
Overview
Applies to: vehicles with emergency call function
An emergency call is a combination of data transmission
and a phone call. The data transmission
from your vehicle forwards important information,
such as the vehicle and position data, to the
emergency call center.
Depending on the country
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