64 52 521 Removing and installing/replacing air conditioning compressor (N14, N16, N18)
Special tools required:
WARNING:
Avoid contact with refrigerant and refrigerant oil.
Follow all applicable SAFETY INFORMATION .
IMPORTANT:
Risk of damage.
IMPORTANT:
Restart engine only when A/C system has been correctly filled.
Read and comply with NOTES ON COMPRESSOR REPLACEMENT .
If air conditioning system is opened for more than 24 hours:
Replace DESICCANT INSERT for A/C system
Necessary preliminary tasks:
- Remove the alternator drive belt. See REPLACING DRIVE BELT FOR ALTERNATOR (N14) , REPLACING DRIVE BELT FOR ALTERNATOR (N16) or REPLACING DRIVE BELT FOR ALTERNATOR (N18)
IMPORTANT:
Seal openings or lines on compressor with special tool 32 1 270
to prevent escape of media and dirt contamination.
IMPORTANT:
Secure compressor against falling out.
Disconnect plug connection (1).
Release nuts (2) and disconnect refrigerant lines.
Tightening torque 64 52 2AZ .
Installation note:
Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
Release bolts (3) and feed out compressor.
Tightening torque 64 52 1AZ .
Installation note:
- If the air conditioning has been opened for more than 24 hours, the DESICCANT INSERT must be replaced
- EVACUATE and fill air conditioning system