11 28 020 Replacing tensioning device for alternator drive belt (N63)
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. 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).