Service Port HVAC: Service and Repair

64 53 ... Replacing Valve Insert For Refrigerant Line







WARNING:
Risk of injury.
Refrigerant circuit is under high pressure.
Follow safety instructions for handling refrigerant R 134a.
Follow safety instructions for handling refrigerant oil.
Avoid contact with refrigerant and refrigerant oil.







IMPORTANT:
Risk of damage.
Restart engine only when A/C system has been correctly filled.
Follow instructions 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







NOTE:
The special tool is available under BMW order number: 81 34 0 427 679 from the BMW workshop equipment catalogue.







Necessary preliminary tasks:
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation







Twist valve insert out of filler neck (2) with remover (1).

Installation:
Screw in valve insert hand-tight only.







After installation:
- Evacuate and fill A/C system
- Check leak-tightness of valve insert with soapy solution
In event of leakage:
- Evacuate A/C system
- Check sealing faces on line and valve insert for damage, replace line or valve insert if necessary