12 41 020 Removing and installing/replacing starter (N57 D30 O/T 1)

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Necessary preliminary tasks:

Switch off ignition.
Disconnect BATTERY NEGATIVE LEAD .
Remove bottom ACOUSTIC COVER .
Only F12 and all-wheel drive vehicles:
Remove STIFFENING PLATE .

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 1: Identifying Cable Clamp And Nuts

Courtesy 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 2: Identifying Starter Motor Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Check starter pinion and ring gear for damage.

If necessary, replace starter motor.

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

Use BMW diagnosis system to reset the starter counter.