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:
Radiator/Radiator Fan
Overview - Radiator/Radiator Fan
1 - Radiator
Removing and installing. Refer to
→ Chapter "Radiator, Removing and Installing".
After replacing, replace entire amount of coolant
2 - Drain Plug
1.5 to 3 Nm
3 - O-ring
Replace after removing
4 -
Exhaust System, Emissions Controls
Exhaust Pipes/Mufflers
Overview - Muffler
Overview - Muffler, FWD Vehicle
1 - Retaining Loop
Replace if damaged
Exhaust system, installing without tension. Refer to
→ Chapter "Exhaust System, Installing without Tension".
2 - Bolt
23 Nm
3 - Bracket
4
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