64 52 521 Replacing A/C system compressor (S65)
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Scalding hazard!
Work on the cooling system may only be carried out when it has cooled down.
Work on the cooling system may only be carried out when it has cooled down.
WARNING:
Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for Handling R 134A Refrigerant See 6450... SAFETY INSTRUCTIONS FOR HANDLING R134A REFRIGERANT or 6450... INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A .
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for HANDLING REFRIGERANT OIL .
Refrigerant circuit is under high pressure!
Follow safety instructions for Handling R 134A Refrigerant See 6450... SAFETY INSTRUCTIONS FOR HANDLING R134A REFRIGERANT or 6450... INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A .
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for 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 A/C system.
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 A/C system.
Necessary preliminary tasks:
- DRAIN OFF AIR CONDITIONING SYSTEM
- Remove A/C compressor DRIVE BELT
- Drain COOLANT from radiator
- Remove coolant hose from radiator at bottom
Clamp off overflow hoses (1) and lay to one side.
Unfasten screws (2).
Raise coolant tank (3) and disconnect associated plug connection.
Place coolant tank (3) to one side.
Disconnect plug connection (1).
Release screws (2) and remove refrigerant lines.
Tightening torque 64 52 1AZ .
Installation:
Replace sealing rings.
Use special tool 00 9 030 WEDGE to mount sealing rings without damaging them.
IMPORTANT:
Close openings or line to compressor with special tool 32 1 270 PLUG
to avoid media leak and dirt contamination.
Release screws (1, 2) and remove holder (3).
IMPORTANT:
Secure compressor (5) against falling off/down.
Release screw (4) and feed out compressor (5) towards top.
Installation:
If necessary, replace damaged adapter sleeves (1).
After installation
- FILL AND VENT cooling system
- Evacuate and fill A/C SYSTEM