12 31 ... Replacing alternator belt pulley
WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For Special Tool identification, see ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS - 545i (4.4L) E60/N62 .
Special Tools Required:
- 12 7 110
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, refer to 12 31 2AZ / 12 31 3AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES - 545i (4.4L) E60/N62 .