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Home >> Mini >> 2013 >> Cooper Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 499 (Engine Electrical System - Repair Instructions) >> Alternator With Drive >> 12 31 ... Replacing alternator belt pulley
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12 31 ... Replacing alternator belt pulley

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For Special Tool identification, see SPECIAL TOOLS - Z3 .

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, 12 31 2AZ/12 31 3AZ. Refer to 12 31 ALTERNATOR WITH DRIVE AND MOUNTING PART .

Fig 1: Removing Pulley Nut
G03178354Courtesy of BMW OF NORTH AMERICA, INC.