FixVault

12 31... Replacing alternator belt pulley

Remove and install alternator drive belt. See GENERATOR BELT PULLEY .

Depending on alternator type, grip shaft with:

Release nut with special tool 12 7 110.

Installation:

Tightening torque, see 12 31 2AZ / 12 31 3AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Fig 1: Releasing Nut With Special Tool
G03260846Courtesy of BMW OF NORTH AMERICA, INC.