A/C Compressor Pressure Relieve Valve, Checking

WARNING:

There is a danger of ice-up.

Check valve drains coolant when engine is running and pressure in coolant circuit is too high.

Turn engine off.

Checking Pressure Relief Valve On A/C Compressor (Sanden)

Fig 1: Identifying Pressure Relief Valve On A/C Compressor (Sanden)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The pressure relief valve -arrow- has operated when refrigerant oil is found in the close vicinity.
In this case, vehicle must be taken to an authorized Volkswagen workshop.

A/C Compressor Pressure Relief Valve

Fig 2: Identifying A/C Compressor Pressure Relief Valve

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The pressure relief valve -arrow- has operated when refrigerant oil is found in the close vicinity.
In this case, vehicle must be taken to an authorized Volkswagen workshop.