1128010 Replacing drive belt for alternator (N63): Notes
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
If contaminated with hydraulic fluid:
Replace drive belt.
Replace drive belt.
Installation note:
If the drive belt is to be reused, mark direction of travel and reinstall drive belt in same direction of rotation.