Filling With Refrigerant

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Important information about filling with refrigerant

NOTE: Refrigerant must only be filled via the service valve (TXV system) on the high pressure (HP) side.

HINT: A specification decal in the engine compartment lists the refrigerant capacity of the air conditioning (A/C) system.

Fig 1: Filling With Refrigerant

Courtesy of VOLVO CARS OF NORTH AMERICA.

NOTE: The most common cause of failed filling on the high pressure side is incorrect vacuum pumping or because the pressure in the filling unit is not high enough, or a combination of these two.

NOTE: The filling unit should preferably have a heating unit for refrigerant. This is so that the pressure in the filling unit is higher than in the system that is to be filled.

NOTE: When filling with refrigerant, compensate for the volume in the filling hoses before closing the filler valve.