64 52 523 Removing and installing/replacing A/C system compressor (N63)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING: Danger of injury!
Refrigerant circuit is under high pressure!

Follow safety instructions for handling R 134a refrigerant See 64 50... INSTRUCTIONS FOR HANDLING R 134A REFRIGERANT or 64 50... SAFETY INFORMATIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A .

Avoid contact with refrigerant and refrigerant oil.

Follow safety information 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 air conditioning system is opened for more than 24 hours:

Replace DESICCANT INSERT for A/C system.

Necessary preliminary tasks

Unfasten screws (2).

Tightening torque 64 53 3AZ .

Remove lines (3) from capacitor (1).

Fig 1: Identifying Lines, Capacitor And Screws

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Cover cooling fins with aluminium sheet (2) or similar material.

NOTE: This prevents the cooling fins from being damaged when the compressor is removed later.

ARS expandable hose (1) is only tied up in the case of the equipment specification with Dynamic Drive.

Fig 2: Identifying ARS Expandable Hose And Aluminium Sheet

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Release screws (1).

Remove both retaining brackets of anti-roll bar (2).

Carefully lower anti-roll bar.

Tightening torque 31 35 1AZ .

Fig 3: Identifying Screws And Retaining Brackets Of Anti-Roll Bar

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Release screws (1).

Tightening torque 64 52 03AZ .

Fig 4: Identifying Lower Anti-Roll Bar Screws

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

NOTE: Secure compressor (5) against falling out.

Release screw (1).

Tightening torque 64 52 03AZ .

Disconnect plug connection (2).

Lower compressor (5).

Release screws (3) and (4) and remove refrigerant lines.

Tightening torque 64 52 01AZ .

Installation note:

Replace sealing rings.

Fig 5: Identifying Compressor, Plug Connection And Screws

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

Have another person pull the radiator forward.

Carefully feed out compressor upwards.

After installation:

EVACUATE AND FILL AIR CONDITIONING SYSTEM .