11 28 020 Replacing Tensioning Device for Drive Belt for Alternator (N55)

Special Tools Required: 

• 11 0 390 .

Necessary Preliminary Tasks: 

• Remove DRIVE BELT .

F07 Only: 

Remove Special Tool 11 0 390 .

Release Screw (1) On Belt Tensioner.

Tightening torque 11 28 1AZ .

Fig 1: Removing Belt Tensioner, Screw, and Special Tool 11 0 390

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble Engine.