FixVault

Service valves

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Service Valves
GLL145805Courtesy of VOLVO CARS OF NORTH AMERICA.
  1. The service valve for draining, vacuum pumping and filling with refrigerant
  2. Service valve for draining and vacuum pumping.

The service valves are used to:

CAUTION: Filling with refrigerant must only be carried out on the high-pressure side to prevent the risk of liquid refrigerant in the compressor.