64 52 521 Replacing A/C system compressor (S65)
WARNING: This page is about a different car, the 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.
Special tools required:
- 32 1 270
See STEERING AND WHEEL ALIGNMENT - SPECIAL TOOLS .
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 .
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 .
Avoid contact with refrigerant and refrigerant oil.
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 desiccant insert for A/C system.
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 desiccant insert for A/C system.
Necessary preliminary tasks:
- Drawing off , evacuating and filling the A/C system is not included in the time value given for this work operation
- Remove A/C compressor drive belt
- Drain coolant from radiator. See 17 00 005 DRAINING AND ADDING COOLANT (S65) .
- Remove coolant hose from radiator at bottom
Clamp off overflow hoses (1) and lay to one side.
Release 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.
Installation:
Tightening torque 64 52 1AZ , see COMPRESSOR .
Replace all sealing rings and moisten with refrigerant oil.
IMPORTANT:
Seal openings or lines on compressor with special tool 32 1 270
to prevent escape of media and fouling.
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. See 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .
- Evacuate and fill A/C system