64 52 523 Removing and Installing/Replacing A/C System Compressor

64 52 523 Removing And Installing/replacing A/C System Compressor (N63)

Special tools required:







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







IMPORTANT:
Risk of damage.
Restart engine only when air conditioning system has been correctly filled.
Read and comply with notes on compressor replacement.
Follow instructions for opening and replacing parts in refrigerant circuit.

If air conditioning system is opened for more than 24 hours:
Replace desiccant insert for air conditioning system.







Necessary preliminary work:
- Drain off air conditioning system
- Remove air conditioning compressor drive belt
- Remove front right wheel arch cover
- Remove steering assembly cover







Unfasten screws (2).
Tightening torque 64 53 3AZ.
Remove lines (3) from capacitor (1).







Cover cooling fins with aluminium sheet (2) or similar material.

NOTE:
This prevents the cooling fins from being damaged when the compressor is removed later.

ARS expandable hose (1) is only tied up in the case of the equipment specification with Dynamic Drive.







Release screws (1).
Remove both retaining brackets of anti-roll bar (2).
Carefully lower anti-roll bar.
Tightening torque 31 35 1AZ.







Release screws (1).
Tightening torque 64 52 03AZ.







IMPORTANT: Seal openings or lines on compressor with special tool 32 1 270 to prevent escape of media and dirt contamination.







NOTE:
Secure compressor (5) against falling. Release screw (1).
Release screw (1).

Tightening torque 64 52 03AZ.
Disconnect plug connection (2).
Lower compressor (5).
Release screws (3) and (4) and remove refrigerant lines.
Tightening torque 64 52 01AZ.

Installation note: Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.







Have another person pull the radiator forward.
Carefully feed out compressor upwards.







After installation:
- Evacuate and fill air conditioning system