12 41 020 Removing and installing/replacing starter motor

Necessary preliminary work: 

• Clamp off BATTERY EARTH LEAD .
• Remove front UNDERBODY PROTECTION .

Release nut (1) and remove terminal 50 from starter motor.

Release nut (2) and disconnect positive battery cable from starter motor.

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove starter motor.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Install starter.

Screw in and tighten screws (1).

Tightening torque 12 41 1AZ

Courtesy of BMW OF NORTH AMERICA, INC.

Connect terminal 50 to starter motor and tighten nut (1).

Tightening torque 12 52 1AZ .

Connect positive battery cable to starter motor and tighten nut (2).

Tightening torque 12 52 3AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

• Connect BATTERY EARTH LEAD .
• Install front UNDERBODY PROTECTION .

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

• Reset start counter using BMW diagnosis system.