64 52 524 Removing and installing/replacing heating and air conditioning system compressor (N63, X Drive, Dynamic Drive)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. 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!
Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety instructions:

Handling refrigerant R-134a (tetrafluorethane) . See 64 50... SAFETY INFORMATIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A or 64 52... INSTRUCTIONS FOR OPENING AND PART REPLACEMENT IN REFRIGERANT CIRCUIT .
HANDLING REFRIGERANT OIL .

IMPORTANT: Risk of damage!

Restart engine only when A/C system has been correctly filled.

Read and comply with notes on compressor replacement . See 64 52... NOTES FOR CHANGING THE AIR CONDITIONING COMPRESSOR (AMOUNT OF REFRIGERANT OIL OF NEW AIR CONDITIONING COMPRESSOR NOT KNOWN) or 64 52... NOTES FOR CHANGING THE AIR CONDITIONING COMPRESSOR (AMOUNT OF REFRIGERANT OIL OF NEW AIR CONDITIONING COMPRESSOR 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 . See 64 53 517 REPLACING DESICCANT INSERT FOR AIR CONDITIONING SYSTEM or 64 53 518 REPLACING DESICCANT INSERT FOR A/C SYSTEM (CAPACITOR REMOVED) .

Necessary preliminary work

DRAIN OFF AIR CONDITIONING SYSTEM
REMOVE air conditioning compressor drive belt
LOWER FRONT AXLE SUPPORT

Release screw (1).

Unfasten screws (2).

Tightening torque 37 11 2AZ .

Carefully lower active stabilizer (3).

Fig 1: Identifying Lower Active Stabilizer Screws

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Protect cooling fins (1) as shown with suitable material (2) (e.g. aluminum sheet) for the following work operations.

Fig 2: Protecting Cooling Fins Using Suitable Material

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Release screw (2).

Tightening torque 64 53 7AZ .

Take the refrigerant line (1) off the connecting piece (3).

NOTE: Refrigerant line (1) is fed out together with the air conditioning compressor.

Fig 3: Identifying Refrigerant Line Off Connecting Piece

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Release screw (1).

Tightening torque 64 53 3AZ .

Take the refrigerant line (2) of the condenser.

NOTE: Position refrigerant line (2) in direction of arrow.

This work step makes swivelling the compressor to remove the refrigerant lines easier.

Fig 4: Removing Refrigerant Lines

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Unfasten plug connection (1) and disconnect.

Release screw (3) (see next operation).

Unfasten screws (2).

Tightening torque 64 52 3AZ .

Take off holder (4).

Fig 5: Identifying Plug Connection, Holder And 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.

Secure compressor (1) against falling out.

Take compressor (1) off the crankcase and turn downwards slightly.

Release screw in the marked area at refrigerant line (2).

Tightening torque 64 52 1AZ .

Remove refrigerant line (2).

Installation note:

Replace sealing rings.

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

Fig 6: Removing Sealing Rings

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Feed out compressor (1) downwards as pictured.

Installation note:

First feed in the refrigerant line (2) then the compressor (1).

Feed in refrigerant line (2) as shown via line (3) to the top.

Secure refrigerant line (2) on compressor.

Tightening torque 64 52 1AZ .

Secure compressor.

Tightening torque 64 52 3AZ .

Fig 7: Identifying Refrigerant Line On Compressor

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Replacement

Release screw (1).

Tightening torque 64 52 1AZ .

Remove refrigerant line (2).

Adjust the amount of refrigerant oil in the new compressor . See 64 52... NOTES FOR CHANGING THE AIR CONDITIONING COMPRESSOR (AMOUNT OF REFRIGERANT OIL OF NEW AIR CONDITIONING COMPRESSOR NOT KNOWN) or 64 52... NOTES FOR CHANGING THE AIR CONDITIONING COMPRESSOR (AMOUNT OF REFRIGERANT OIL OF NEW AIR CONDITIONING COMPRESSOR 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 amount of refrigerant oil in the new compressor!
The safety information must be observed . See 64 52... NOTES FOR CHANGING THE AIR CONDITIONING COMPRESSOR (AMOUNT OF REFRIGERANT OIL OF NEW AIR CONDITIONING COMPRESSOR NOT KNOWN) or 64 52... NOTES FOR CHANGING THE AIR CONDITIONING COMPRESSOR (AMOUNT OF REFRIGERANT OIL OF NEW AIR CONDITIONING COMPRESSOR KNOWN) !

Fig 8: Identifying Refrigerant Line And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace sealing rings.

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

After installation:

EVACUATE AND FILL A/C SYSTEM