Connection Points Of Refrigerant Lines, Detaching And Assembling: Notes
Danger due to refrigerant coming out under pressure.
Danger of frost bite to skin and other parts of the body.
- Only loosen the connection point bolts when the refrigerant circuit is empty.
This procedure contains mandatory replaceable parts. Refer to component overview and Parts Information prior to starting procedure.
Mandatory Replacement Parts
- O-ring - High Pressure Side Refrigerant Line to Refrigerant Line with Inner Heat Exchanger
- O-ring - Low Pressure Side Refrigerant Line to Refrigerant Line with Inner Heat Exchanger
The procedure for loosening applies to all connection points in the refrigerant circuit and for the branching point of refrigerant lines to rear heater and A/C unit. There are differences in the line connection diameter, O-ring versions and mounting bolts.
Depending on component location, various components in vicinity of connection points must be loosened or removed to be able to disconnect the connection point.
The following illustration shows as an example the connection points between the refrigerant lines from the inner heat exchanger to the A/C compressor and to the condenser as well as the connection points on the opening in the perform to the refrigerant lines to the evaporator in the rear heater and A/C unit. These connection points are installed in the area under the left front fender.