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

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of injury!
Follow safety instructions for handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions 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 A/C system is opened for more than 24 hours:
Replace drier insert for A/C system

Necessary preliminary tasks:

Release coolant tank and place to one side
Remove alternator drive belt . See 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU) .
Release stabilizer on front axle . See 37 11 010 REMOVING AND INSTALLING/REPLACING FRONT ACTIVE STABILIZER .

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 Centre Section And Screws

G04761883

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 64 53 6AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE

Fig 2: Identifying Screws And Refrigerant Lines

G04761884

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) and disconnect refrigerant lines.

Replace all sealing rings and moisten with refrigerant oil.

Tightening torque 64 53 6AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE

Fig 3: Identifying Screw And Refrigerant Lines

G04761885

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Secure compressor (2) against falling out.

Disconnect plug connection (1).

Release screw and nut (3).

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

Tightening torque 64 52 3AZ, see 64 52 A/C COMPRESSOR

Fig 4: Identifying Bolts, Oil Lines And Compressor

G04761893

Courtesy of BMW OF NORTH AMERICA, INC.

Adapter sleeves (1) must not be damaged.

Replace damaged adapter sleeves.

Fig 5: Identifying Adapter Sleeves

G04761888

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 6: Identifying Rear Bolt And Shim

G04761895

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Evacuate and fill A/C system

Replacement:

Release screws (1) and remove refrigerant lines.

Installation:

Replace all sealing rings and moisten with refrigerant oil.

Tightening torque 64 52 1AZ, see 64 52 A/C COMPRESSOR

Fig 7: Identifying Screws And Refrigerant Lines

G04761889

Courtesy of BMW OF NORTH AMERICA, INC.