11 28 010 Removing and installing/replacing alternator drive belt (B48B)

Special tools required: 

• 11 0 390 

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

Necessary preliminary work: 

• Remove ACOUSTIC COVER AT FRONT 

Removal: 

Raise the preloading on the belt tensioner (1) in the direction of the arrow.

Secure belt tensioner in place with special tool 11 0 390  .

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Remove drive belt (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Position drive belt (1) on ancillary components.

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Raise the preloading on the belt tensioner (1).

Remove special tool 11 0 390  from the belt tensioner (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

• Install ACOUSTIC COVER AT FRONT 
• Assemble engine