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12 31... Replacing alternator belt pulley

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW 330xi, 2005 BMW 330i, and 2005 BMW 330Ci. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

Remove and install alternator drive belt.

Depending on alternator type, grip shaft with:

Release nut with special tool 12 7 110.

Installation: 

Tightening torque. Refer to 12 31 ALTERNATOR WITH DRIVE AND MOUNTING PARTS .

Fig 1: Releasing Nut With Special Tool
G03123599Courtesy of BMW OF NORTH AMERICA, INC.