A/C system, general repair guidelines: Notes

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.

The refrigerant circuit of the A/C system must not be discharged and opened unless this is necessary because of safety precautions or unless components of the refrigerant circuit of the A/C system have to be to replaced. See A/C REFRIGERANT SYSTEM \(R-134A\), DISCHARGING .

When performing all other usual vehicle repair work, the refrigerant circuit of the A/C system should also remain closed.

Servicing operations that can be carried out on the heating and air conditioning system without opening the refrigerant circuit, are described in REFRIGERANT CIRCUIT, SERVICING .

NOTE: The connections for switches mentioned in this Repair Manual are provided with a valve that closes automatically when the switches/sensors are unscrewed and removed. These switches can be replaced even though the refrigerant circuit is fully charged.

For servicing operations to A/C systems that require discharging the refrigerant circuits. See A/C REFRIGERANT SYSTEM (R-134A), DISCHARGING .

Service work on A/C systems that pertains to the refrigerant circuit should only be carried in workshops equipped with suitable workshop tools.