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

Necessary preliminary tasks:

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 .

Lay cable to one side.

Fig 1: Identifying Nuts

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Release expanding rivets (1).

Remove bottom acoustic cover (2).

Fig 2: Identifying Acoustic Cover And Expanding Rivets

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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 3: Identifying Screws

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Installation note:

Check starter pinion and ring gear for damage.

If necessary, replace starter motor.

Assemble engine.

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