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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 535 (Engine Electrical System - Repair Instructions) >> Alternator With Drive And Mount >> 12 31... Replacing Alternator Belt Pulley

12 31... Replacing Alternator Belt Pulley

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NOTE:

For Special Tool identification, see ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS .

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 2AZ/12 31 3AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Fig 1: Identifying Torx Socket Wrench
G03292181Courtesy of BMW OF NORTH AMERICA, INC.