11 28 010 Replacing alternator drive belt (M52 / S52 / M52TU / M54 / M56)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW X5, 2006 BMW X3, 2005 BMW X5, 2005 BMW X3, and 2004 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If the drive belt is to be subsequently reused:
Mark direction of travel and reinstall drive belt in same direction of travel.

Necessary preliminary tasks:

Remove fan clutch with fan impeller
Remove A/C compressor drive belt, refer to 11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT (M52 / S52 / M52TU / M54 / M56)

Remove cap from tensioning roller.

Fig 1: Removing Cap From Tensioning Roller

G03310327

Courtesy of BMW OF NORTH AMERICA, INC.

Relieve tension on belt drive.

Fig 2: Removing Drive Belt

G03310328

Courtesy of BMW OF NORTH AMERICA, INC.

Remove drive belt.

IMPORTANT: Drive belt must be replaced if fouled with hydraulic fluid.

Installation:

Check drive belt for coolant and oil residues, replace if necessary.

Installation:

Check that belt is correctly positioned on belt pulleys.

Fig 3: View Of Belt Position

G03310329

Courtesy of BMW OF NORTH AMERICA, INC.

Version with auxiliary tensioning roller.

Fig 4: View Of Belt Position With Auxiliary Tensioning Roller

G03310330

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Locking device of auxiliary tensioning roller must snap into groove on alternator.

Fig 5: Identifying Locking Device Of Auxiliary Tensioning Roller

G03310331

Courtesy of BMW OF NORTH AMERICA, INC.

Version on E85.

Fig 6: Identifying Locking Device Of Auxiliary Tensioning Roller (E85)

G03310332

Courtesy of BMW OF NORTH AMERICA, INC.

Version on E60/E65.

Fig 7: Identifying Locking Device Of Auxiliary Tensioning Roller (E60/E65)

G03310333

Courtesy of BMW OF NORTH AMERICA, INC.