Evaporator to Compressor

64 53 702 - Replacing line from evaporator to compressor (N52)





Warning!
Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil [1][2]Safety Instructions for Handling Refrigerant Oil.





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





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
- Remove fresh air duct Service and Repair
- Release expansion tank and place to one side





Feed out rubber grommet (1).
Release nut (2) and detach refrigerant lines (3 and 4) in direction of arrow.

Installation Note:
Make sure rubber grommet (1) is correctly seated.
Replace sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 7AZ [1][2]Expansion Valve.





Expose refrigerant line up to compressor connection.





Release nuts (1) and remove holder (2).





Release screw (1) and remove refrigerant line (2).
Feed refrigerant line (2) out of engine compartment.

Installation Note:
Replace sealing rings and moisten with refrigerant oil.
Tightening torque 64 52 1AZ [1][2]Expansion Valve.





After installation:
- Evacuate and fill A/C system Drawing off, Evacuating and Filling A/C System (R 134a)