64 52 524 Replacing A/C compressor (N52, N52K with Dynamic Drive)

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:
Replacing drier insert for A/C system

IMPORTANT: Aluminium-magnesium materials. No steel screws/bolts may be used due to the threat of electrochemical corrosion. A magnesium crankcase requires aluminum screws/bolts exclusively. Aluminum screws/bolts must be replaced each time they are released. The end faces of aluminum screws/bolts are painted blue for the purposes of reliable identification. Jointing torque and angle of rotation must be observed without fail (risk of damage)!

Necessary preliminary tasks:

Remove alternator drive belt.
FRONT UNDERBODY PROTECTION
Remove coolant thermostat. See 11 53 000 REMOVING AND INSTALLING/REPLACING COOLANT THERMOSTAT (N52K) .

Disconnect plug connection (1). Release screws (2, 3) and disconnect suction and pressure lines. Tightening torque 64 52 3AZ, see 64 52 A/C COMPRESSOR . Installation: Replace sealing rings. Use special tool 00 9 030 to mount sealing rings without damaging them.

Fig 1: Release Screws (2, 3) And Disconnect Suction And Pressure Lines

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, release bracket for oil lines (1) to feed out compressor.

Fig 2: Release Bracket For Oil Lines (1) To Feed Out Compressor

Courtesy of BMW OF NORTH AMERICA, INC.

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

NOTE: Secure compressor (3) against falling out.

Secure compressor (3) against falling out. Release bolt (2) and if necessary remove with bushing behind. Release screws (1). Tightening torque 64 52 3AZ, see 64 52 A/C COMPRESSOR .

Remove compressor (3) towards front. Installation: Make sure bushing is correctly fitted, replace damaged bushings.

Fig 3: Remove Compressor (3) Towards Front

Courtesy of BMW OF NORTH AMERICA, INC.

After installation: Evacuate and fill A/C system Fill and vent cooling system and check for leaks