11 28 020 Removing and installing/replacing belt tensioner of the alternator (B48B)

NOTE: When replaced, the tensioning device must be de-tensioned again before removal.

Necessary preliminary work:

Removal:

Loosen the screws along the arrows.

Guide the belt tensioner (1) out and remove.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Guide the belt tensioner (1) in at the alternator and install.

Tighten the screws along the arrows.

Tightening torque 12 31 2AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: