12 41 020 Removing and installing/replacing starter motor (N55)

Necessary preliminary tasks: 

• Switch off ignition.
• Disconnect BATTERY NEGATIVE LEAD .
• Remove INTAKE PLENUM .

Unlock connector (1) and remove.

Release nuts (2) and disconnect positive battery cables.

Tightening torque 12 42 2AZ .

Release screws (3).

Installation note: 

Tightening torque 12 41 1AZ .

Remove starter motor (4).

Fig 1: Identifying Connector, Nuts, Screws And Starter Motor

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

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

Only during starter replacement and on vehicles with MSA (automatic engine start-stop function): 

• Use BMW diagnosis system to reset the starter counter.