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:
Risk of injury.
Refrigerant circuit is under high pressure.
Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety regulations:
- Handling R 134a refrigerant
- Handling refrigerant oil







IMPORTANT:
Risk of damage.
Restart engine only when air conditioning system has been correctly filled.
Read and comply with notes on replacing compressor.
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 A/C system.







Necessary preliminary tasks:
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
- Remove A/C compressor drive belt
- Remove tank venting valve
- Remove right front wheel
- Remove front underbody protection
- Remove steering gear cover







Illustration similar.
Release screw (1).
Tightening torque 64 53 5AZ.
Remove intake pipe (2) from exhaust tailpipe holder (3).







Release screws (1).
Tightening torque 64 53 3AZ.
Remove refrigerant line from condenser (2).

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







Release screw (1) on holder (2).
Take off holder (2).
Tightening torque 17 22 03AZ.

Version with Dynamic Drive:
Release nuts (3) on holders for pressure lines (4).
Remove holders for pressure lines (4).
Tightening torque 32 41 07AZ.







NOTE: For purposes of clarity, illustration shows bumper removed.

Unscrew nuts (1).
Tightening torque 51 11 05AZ.
Pull module carrier and coolant radiator in direction of arrow to create sufficient space for subsequent compressor removal.

IMPORTANT:
Risk of damage.
Before later removing compressor, protect cooling fins by covering with an aluminium sheet, for example.







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







IMPORTANT: Close openings or line to compressor with special tool 32 1 270 to avoid media leak and dirt contamination.







NOTE: Secure compressor (5) against falling out.

Disconnect plug connection (2).
Release screws (1).
Tightening torque 64 52 03AZ.
Lower compressor (5).
Release screws (3) and (4) and remove refrigerant lines.
Tightening torque 64 52 01AZ.

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

Carefully feed out compressor (5) toward the front.







After installation:
- Evacuate and fill A/C system

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