Replacing compressor for air conditioning (Cooper S)

Special tools required:

00 9 030
32 1 270

WARNING: Injury hazard!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety instructions:

Refer to: NOTE FOR HANDLING R134A REFRIGERANT or SAFETY INSTRUCTIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A
Refer to: HANDLING REFRIGERANT FLUID

IMPORTANT: Risk of damage!
Restart engine only when air conditioning has been correctly filled.
Read and comply with notes on compressor replacement! Refer to:NOTES ON CHANGING THE AIR-CONDITIONING COMPRESSOR, DETERMINATION OF THE COOLANT OIL LEVEL (COOLANT OIL LEVEL OF NEW AIR-CONDITIONING COMPRESSOR NOT KNOWN) or NOTES ON REPLACING AIR CONDITIONING COMPRESSOR, DETERMINING THE AMOUNT OF REFRIGERANT OIL (AMOUNT OF REFRIGERANT OIL FOR NEW AIR CONDITIONING COMPRESSOR NOT KNOWN)

Follow notes for opening and replacing parts in REFRIGERANT CIRCUIT .

If Air conditioning is opened for more than 24 h:

Replace DESICCANT INSERT for A/C system.

Preliminary work needed:

Drain off AIR CONDITIONING SYSTEM
Disconnect NEGATIVE BATTERY LEAD
Drain COOLANT
Remove FAN COWL WITH ELECTRIC FAN
Remove front right WHEEL ARCH COVER
Remove front UNDERBODY PROTECTION

Release DRIVE BELT for alternator

Version with brake cooling duct:

Remove right BRAKE COOLING DUCT

Removal:

IMPORTANT: Seal openings or lines on compressor with special tool 32 1 270 to prevent leakage of media and dirt contamination.

Unlock and disconnect the connector (1).

Unscrew the screws (2).

Remove refrigerant lines (3).

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Secure compressor (2) against falling out.

Unscrew the screws (1).

Feed out compressor (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Adjust coolant oil level in new compressor. Refer to: NOTES ON CHANGING THE AIR-CONDITIONING COMPRESSOR, DETERMINATION OF THE COOLANT OIL LEVEL (COOLANT OIL LEVEL OF NEW AIR-CONDITIONING COMPRESSOR NOT KNOWN) , NOTES ON REPLACING AIR CONDITIONING COMPRESSOR, DETERMINING THE AMOUNT OF REFRIGERANT OIL (AMOUNT OF REFRIGERANT OIL FOR NEW AIR CONDITIONING COMPRESSOR NOT KNOWN)

IMPORTANT: Danger of compressor damage!
Danger of customer complaints due to reduced cooling power of the Air conditioning!
Before the installation of the new compressor, it is absolutely necessary to adjust the coolant oil level in the new compressor!
Be sure to read and comply with safety instructions. Refer to: NOTES ON CHANGING THE AIR-CONDITIONING COMPRESSOR, DETERMINATION OF THE COOLANT OIL LEVEL (COOLANT OIL LEVEL OF NEW AIR-CONDITIONING COMPRESSOR NOT KNOWN) or NOTES ON REPLACING AIR CONDITIONING COMPRESSOR, DETERMINING THE AMOUNT OF REFRIGERANT OIL (AMOUNT OF REFRIGERANT OIL FOR NEW AIR CONDITIONING COMPRESSOR NOT KNOWN)

Installation:

Position compressor (2) correctly.

Tighten down screws (1).

Tightening torque 64 52 3AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Position refrigerant lines (3) correctly.

Tighten down screws (2).

Tightening torque 64 52 4AZ .

Attach and lock connector (1).

NOTE: Replace sealing rings.

Use special tool 00 9 030 to install sealing rings without damaging them.

Courtesy of BMW OF NORTH AMERICA, INC.

Required reworking:

Evacuate and fill AIR CONDITIONING
Connect BATTERY GROUND LEAD
Add COOLANT
Vent and fill COOLING SYSTEM
Install FAN COWL WITH ELECTRIC FAN
Install front right WHEEL ARCH COVER
Install front UNDERBODY PROTECTION
Tension DRIVE BELT for alternator

Version with brake cooling duct:

Install right BRAKE COOLING DUCT