64 52 524 Removing And Installing/Replacing Heating And Air Conditioning System Compressor
64 52 524 Replacing Air Conditioning System Compressor (N55, With Dynamic Drive)
Special tools required:
- 00 9 030
- 32 1 270
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 air conditioning system.
Necessary preliminary work:
- Drawing off, evacuating and filling the air conditioning system are not included in the time value given for this work operation
- Remove compressor drive belt
- Remove suction filter housing.
- Remove left charge air duct
- Remove charge air cooler
IMPORTANT: Close openings or line to compressor with special tool 32 1 270 to avoid media leak and dirt contamination.
Unfasten plug connection (1) and disconnect.
Release screws (2) and remove refrigerant lines (3).
Tightening torque 64 52 1AZ.
Installation:
Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.
Release screw (1) at holder for refrigerant lines (2) and pull out, including spacer sleeve.
Release screw (1).
Tightening torque 64 52 3AZ.
NOTE: Shown with clearance for better clarity.
Unfasten screw (1)
Tightening torque 64 52 3AZ.
IMPORTANT: Close openings or line to compressor with special tool 32 1 270 to avoid media leak and dirt contamination.
NOTE: Secure compressor (2) against falling off/down.
Release screw (1).
Tightening torque 64 52 3AZ.
Lift out compressor (2).
Installation:
Release screws (1).
Tightening torque 32 41 18AZ.
Remove holder for hydraulic line (2) on power steering pump (3).
After installation:
- Evacuate and fill air conditioning system