A6 Quattro Wagon V6-2.8L (AFC) (1995)
Service Port HVAC: Locations
Gauge Connectors
1. A/C compressor (Zexel)
2. A/C compressor speed sensor
3. A/C compressor clutch
4. Oil drain plug
5. Pressure relief valve
6. Connection with Schrader valve (high pressure)
For A/C refrigerant high pressure switch
7. A/C refrigerant high pressure switch
Switch identification: red housing with bonded wire connections.
8. Condenser
9. Service valve (high pressure)
Mounted on front of condenser
10. Cap, with seal
11. Connection with Schrader valve
For A/C high pressure switch.
12. A/C refrigerant high pressure switch.
Switches coolant fan to 2nd speed operation.
Switch identification: green housing with bonded wire connections
13. Restrictor
14. Evaporator
Note: Do not disassemble evaporator and housing.
15. A/C refrigerant low pressure switch
16. Service valve (low pressure)
For A/C refrigerant low pressure switch.