12 31 ... Replacing alternator belt pulley
WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. 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 .