12 31... Replacing alternator belt pulley
WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 12 7 110 . See ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS .
Remove and install alternator drive belt.
Depending on alternator type, grip shaft with:
- hexagon socket
- multi-tooth socket or
- Torx socket wrench
Release nut with special tool 12 7 110 .
Installation:
Tightening torque, 12 31 2AZ / 12 31 3AZ . See 12 31 ALTERNATOR WITH DRIVE AND MOUNTING PARTS .