11 28 020 Replacing tensioning device for alternator drive belt (N14)

WARNING: Tensioning device subject to spring bias (danger of injury!).

Necessary preliminary tasks:

Remove CHARGE AIR DUCT .
Remove DRIVE BELT .
Disconnect oxygen sensor cable.

Unfasten screws (2).

Tightening torque 11 28 1AZ

Remove tensioning device (3).

Fig 1: Identifying Tensioning Device And Screws

G04789930

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.