11 28 125 Removing and installing/replacing tensioning device for alternator drive belt (N55 Hybrid)

Special tools required:

WARNING: Compliance with the following points is mandatory before beginning work:

Necessary preliminary work:

Remove special tool 11 0 390 .

Release screw (1) on belt tensioner.

Tightening torque 11 28 1AZ .

Fig 1: Releasing Screw On Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.