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Home >> BMW >> 2012 >> 320i Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine Electrical System - Repair - F30 >> Starter With Mounting >> 12 41 020 Removing and refitting/replacing starter motor (N47 D20 O 1 with SCR)

12 41 020 Removing and refitting/replacing starter motor (N47 D20 O 1 with SCR)

Necessary preliminary tasks: 

Release screws (1).

Remove connecting link (2).

Fig 1: Identifying Screws And Connecting Link
G10102269Courtesy of BMW OF NORTH AMERICA, INC.

Release cable from cable retainer.

Release screws (1).

Remove cable clip (2).

Partially detach sound insulation on the bottom.

Fig 2: Identifying Screws And Cable Clip
G10102276Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove cable.

Tightening torque: 12 52 1AZ .

Release nut (2) and remove the positive battery cable.

Tightening torque: 12 52 3AZ .

Release cable at clamp (3) from starter motor.

Fig 3: Identifying Nut And Clamp
G09914247Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1), (2) and (3).

Remove starter motor.

Installation note: 

Observe screwing sequence. 

Position and secure starter motor. Tighten down screws (1) and (2). Tighten down support screw (3).

Tightening torque: 12 41 1AZ .

Fig 4: Identifying Screws
G09945580Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Check starter pinion and ring gear for damage.

Replace damaged starter motor.

Assemble engine.

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