S-Type (X200) V6-3.0L (2000)
Service Port HVAC: Description and Operation
Service Gauge Port Valves
The high-pressure service gauge port valve is located on the A/C receiver drier manifold and tube assembly.
The low pressure service gauge port valve is located on the manifold of the A/C compressor manifold and tube assembly at the A/C compressor.
Component Location
The fitting is an integral part of the refrigerant line or component.
Special couplings are necessary for both the high side and low side service gauge ports.
A new Schrader-type valve can be installed if the seal leaks
Always install the A/C charging valve cap on the service gauge port valves after repairing the refrigerant system.