911 Carrera 4S Coupe AWD F6-3600cc 3.6L SOHC (1997)
Expansion Valve: Service and Repair
Removal
1. Take off battery ground cable.
2. Draw off refrigerant with service equipment.
3. Remove heater/A/C unit cover (old version is held in place by 2 bolts with washers, new version is fitted with spring clamp).
4. Remove Central Electrical System.
5. Remove wiring harness cover.
6. Detach electrical connector at fan housing cover and place Central Electrical System on fender (use fender protectors).
7. Detach connector from blower final stage.
8. Remove firewall.
9. Separate A/C piping from expansion valve. Plug ports and piping immediately with airtight seals.
10. Undo and take out expansion valve. Plug piping to evaporator immediately with airtight seals.
Installation
Remove plugs only directly before refitting. Replace O-rings and coat lightly with refrigerant oil.
Refrigerant oil drawn off from an A/C system that has already been operated must not be reused.
Tightening torques:
M 5 bolt 6 Nm (4.5)
M 6 bolt 9 Nm (6.6)