A/C Refrigerant System, Identification

A/C Refrigerant System, Identification


NOTE: Before carrying out any work on the A/C refrigerant system, refer to A/C system safety measures.


A/C refrigerant systems on Passat models are charged with refrigerant R-134a.

Labels specifying refrigerant type are located on the compressor or radiator support. Before proceeding with refrigerant system servicing or repairs, always confirm refrigerant type used.

A/C refrigerant circuit with restrictor and accumulator







1 - Compressor
2 - Condenser
3 - Restrictor
4 - Evaporator
5 - Accumulator


NOTE: Arrows indicate direction of refrigerant flow.