64 52 523 Replacing air conditioning compressor (B48 engine)
Special tools required:
- 00 9 030
- 32 1 270
WARNING:
Danger of injury!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety information:
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety information:
- Follow safety instructions for HANDLING TETRAFLUORETHANE REFRIGERANT R134A
- Follow safety instructions for HANDLING REFRIGERANT OIL
IMPORTANT:
Risk of damage!
Restart engine only when air conditioning has been correctly filled.
Read and comply with NOTES ON REPLACING COMPRESSOR.
Follow NOTES FOR OPENING AND REPLACING PARTS in refrigerant circuit.
If air conditioning is opened for more than 24 hours: Replace CONDENSER FOR AIR CONDITIONING .
Restart engine only when air conditioning has been correctly filled.
Read and comply with NOTES ON REPLACING COMPRESSOR.
Follow NOTES FOR OPENING AND REPLACING PARTS in refrigerant circuit.
If air conditioning is opened for more than 24 hours: Replace CONDENSER FOR AIR CONDITIONING .
Necessary preliminary work:
- Evacuate the AIR CONDITIONING SYSTEM .
- Remove COMPRESSOR DRIVE BELT
IMPORTANT:
Seal openings or lines on compressor with special tool 32 1 270 to prevent escape of media and dirt contamination.
Release screws (1).
Tightening torque 64 52 3AZ .
Place compressor (2) slightly to one side.
NOTE:
Secure compressor against falling out.
Unlock and disconnect the connector (1).
Release screws (2) and remove refrigerant lines (3).
Tightening torque 64 52 1AZ .
Feed out compressor upwards to the front.
Installation note:
Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.
Replacement:
- Change OIL OF COMPRESSOR .
After installation:
- Evacuate and fill the AIR CONDITIONING SYSTEM .