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

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2006 BMW 325Ci, 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, and 2004 BMW 325xi. 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. See 11 52 020 Removing and installing/replacing fan clutch (S52 / S54 / M52 / M52TU / M54 / M56)
Remove A/C compressor drive belt. See 11 28 050 Replacing A/C compressor drive belt (M52 / S52 / M52TU / M54 / M56)
E85/E60: Remove radiator cover
E85/E60: Remove fan cowl

Remove cap from tensioning roller.

Fig 1: Removing Cap From Tensioning Roller

G03164033

Courtesy of BMW OF NORTH AMERICA, INC.

Relieve tension on belt drive.

Remove drive belt.

Fig 2: Removing Drive Belt

G03164034

Courtesy of BMW OF NORTH AMERICA, INC.

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: Checking Belt

G03164035

Courtesy of BMW OF NORTH AMERICA, INC.

Version with auxiliary tensioning roller.

Fig 4: Identifying Auxiliary Tensioning Roller

G03164036

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 5: Installing Locking Device Of Auxiliary Tensioning Roller

G03164037

Courtesy of BMW OF NORTH AMERICA, INC.

Version on E85.

Fig 6: Identifying Version E85

G03164038

Courtesy of BMW OF NORTH AMERICA, INC.

Version on E60/E65.

Fig 7: Identifying Version E60/E65

G03164039

Courtesy of BMW OF NORTH AMERICA, INC.