11 28 020 Replacing tensioning device for alternator drive belt (N63)
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
Necessary preliminary work
- Remove alternator DRIVE BELT .
If necessary, remove special tool 11 0 390 .
Release screw (1).
Tightening torque 11 28 1AZ .
Remove belt tensioner with idler pulley (2).