Refrigerant Pressure Sensor / Switch: Service and Repair

64 53 520 - Replacing safety pressure switch (S85)





Warning!
Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil Instructions for Handling Refrigerant Oil (for Refrigerant R 134a).





Important!
Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow instructions Removal and Replacement for opening and replacing parts in refrigerant circuit!
If A/C system is opened for more than 24 hours:Replace desiccant insert for A/C system Replacing Desiccant Insert for A/C System (Condenser Removed)





Necessary preliminary tasks:
- Drawing off, evacuating and filling the A/C system Drawing off, Evacuating and Filling A/C System (R 134a) are not included in the time value given for this work operation
- Partially remove right wheel arch trim Service and Repair





Disconnect plug connection (1) and release safety pressure switch (2).
Tightening torque 64 53 13AZ [1][2]Expansion Valve.





After installation:
- Evacuate and fill A/C system Instructions for Handling Refrigerant R 134a