64 52 521 Replacing air conditioning compressor (N54, N55)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 030
32 1 270

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

IMPORTANT: Risk of damage!
Restart engine only when A/C system has been correctly filled.
Read and comply with notes on replacing compressor  .
Follow instructions   for opening and replacing parts in refrigerant circuit!
If A/C system is opened for more than 24 hours:
Replace drier insert for A/C system

Necessary preliminary tasks:

Remove compressor drive belt.
Remove left charge air duct.

Release screws (1) and (2). Remove refrigerant line. Tightening torque 64 52 1AZ, see 64 52 A/C COMPRESSOR . Installation note: Replace sealing rings. Use special tool 00 9 030 to mount sealing rings without damaging them.

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.

Disconnect plug connection (1). Unfasten screws (2). Release screw (3) and feed out compressor in upward direction. Tightening torque 64 52 3AZ, see 64 52 A/C COMPRESSOR .

Replacement: Read and comply with notes on compressor replacement . If necessary, release screws (1) and modify holder (2).

After installation: Evacuate and fill air conditioning system Assemble engine