64 52 523 Replacing compressor for air conditioner

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Risk of damage! Follow instructions for compressor replacement without fail. Refer to 64 52 ... INSTRUCTIONS FOR COMPRESSOR REPLACEMENT .

Necessary Preliminary Tasks:

All models:

Draw off refrigerant from A/C system. Refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .
Remove front underbody protection. Refer to 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .

Version with Dynamic Drive:

Do not release pressure lines on active stabilizer.

Press lock (1) on distributor (2) and detach vent line (3) in direction of arrow.

Installation:

Make sure vent line (3) is correctly seated in distributor (2).

Lower stabilizer on front axle.

Fig 1: Identifying Lock On Distributor

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Version with Dynamic Drive:

Release nuts (1) and (2).

Remove retaining fixture (3).

Installation:

Make sure retaining fixture (3) is correctly seated.

Fig 2: Locating Retaining Fixture

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All models:

Unfasten plug connection (1) and disconnect.

Loosen screws (2).

Installation:

Tightening torque, refer to 64 52 1AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUE - E60 .

Detach refrigerant lines (3) in direction of arrow.

Installation:

Replace sealing rings.

Fig 3: Detaching Refrigerant Lines

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All models:

NOTE: Secure A/C compressor (2) against falling out.

Release screws (1).

Feed out A/C compressor (2) in direction of arrow.

Fig 4: View Of A/C Compressor Retaining Screws

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