11 28 010 Replacing drive belt for alternator (N55)

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Special tools required:

11 0 390

Necessary preliminary tasks:

Remove FAN COWL with electric fan.

Routing of drive belt without Dynamic Drive

NOTE: Mark the direction of travel of the drive belt if it is to be reused.

Turn belt tensioner (2) in direction of arrow until belt tensioner bore hole is flush on crankcase.

Hold belt tensioner (2) under tension.

Secure special tool 11 0 390 .

Remove drive belt (3).

Fig 1: Turning Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Routing of drive belt with Dynamic Drive

NOTE: Mark the direction of travel of the drive belt if it is to be reused.

Turn belt tensioner (2) in direction of arrow until belt tensioner bore hole is flush on crankcase.

Hold belt tensioner (2) under tension.

Secure special tool 11 0 390 .

Remove drive belt (3).

Fig 2: Turning Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Installation note:

Check drive belt for correct installation position and, if reusing, observe direction of travel. Risk of damage .