64 52 521 Replacing air conditioning compressor (N54)

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING: Follow all applicable SAFETY INFORMATION .

IMPORTANT:

Risk of damage!

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

Read and comply with notes on compressor replacement: See AMOUNT OF REFRIGERANT OIL NOT KNOWN or AMOUNT OF REFRIGERANT OIL KNOWN .

Follow instructions for OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT .

If air conditioning system is opened for more than 24 hours:

Replace DESICCANT INSERT . Read all notes regarding desiccant insert replacement on this vehicle.

Necessary preliminary tasks:

Draw off / evacuate the A/C SYSTEM
Remove AIR CONDITIONING COMPRESSOR DRIVE BELT
Remove INTAKE SILENCER HOUSING .
Remove left CHARGE-AIR DUCT

Release screws (1) and remove refrigerant lines.

Tightening torque 64 52 1AZ .

Installation note:

Replace sealing rings.

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

Unfasten plug connection (2) and disconnect.

Fig 1: Identifying Refrigerant Lines Screws

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Release screw (1).

Tightening torque 64 52 2AZ .

Fig 2: Identifying Air Conditioning Compressor Screw

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Release screw (1).

Tightening torque 64 52 2AZ .

Fig 3: Identifying Air Conditioning Compressor Screw

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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 (2) against falling off/down.

Release bolt (1) and lift out compressor (2).

Tightening torque 64 52 2AZ .

Fig 4: Identifying Compressor Bolt

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Installation note:

Fitting sleeves (1) must not be damaged.

Replace damaged fitting sleeves.

Fig 5: Identifying Fitting Sleeves

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After installation:

Evacuate and fill AIR CONDITIONING SYSTEM