64 52 524 Replacing A/C system compressor (N62, with Dynamic Drive)

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.

WARNING: Read and comply with warnings relating to working on A/C systems, refer to 64 52 ... NOTES/INSTRUCTIONS ON WORKING ON AIR-CONDITIONING SYSTEMS .

Necessary Preliminary Tasks:

Remove front assembly underside protection, refer to 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .
Remove alternator drive belt, refer to 11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT (N62) .
Release stabilizer on front axle, refer to FRONT ACTIVE STABILIZER BAR .
Release coolant tank and place to one side.

NOTE: The time value given for this work operation does not include drawing off, evacuating and filling the A/C system!

Drain off air conditioner, refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

IMPORTANT: Do not place front panel center section (2) on jump start terminals. Do not kink Bowden cables for engine hood/bonnet locking.

Release screws (1).

Remove front panel center section (2) in direction of arrow and place to one side.

Fig 1: Identifying Front Panel Center Section Retaining Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and feed out refrigerant lines (2).

Fig 2: View Of Refrigerant Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, refer to 64 53 6AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUE - E60 .

Release screw (1) and disconnect connection.

Fig 3: Locating Connection Retaining Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Replace all sealing rings.

Tightening torque, refer to 64 53 6AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUE - E60 .

IMPORTANT: Secure compressor (2) against falling out.

Disconnect plug connection (1). Release bolt and nut (3).

Release bolts (4), remove bracket for oil lines (5) and feed out compressor (2) downwards with refrigerant lines.

Fig 4: View Of A/C Compressor With Dynamic Drive

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, refer to 64 52 3AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUE - E60 .

Adapter sleeves (1) must not be damaged.

Fig 5: Identifying Adapter Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Replace damaged adapter sleeves.

Installation:

Before feeding in compressor, insert rear bolt (1) with shim (2).

Fig 6: Locating Rear Bolt With Shim

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Release screws (1) and remove refrigerant lines.

Fig 7: View Of Refrigerant Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace all sealing rings.

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