Replace aluminium screws

Tightening torque 12 41 1AZ .

Unfasten screws (2).

Installation: 

Tightening torque 12 41 2AZ .

Remove starter motor (3).

Fig 1: Identifying Starter Motor And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Check starter pinion and ring gear for damage. Replace starter if necessary.