BMW X3 Service & Repair Manual: Removing and installing/replacing starter motor (N55)

BMW X3 Service & Repair Manual / Electrical / Starter with mounting / 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.

Release screws (3).

Remove starter motor (4).

Electrical

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.
    Removing and installing/replacing starter motor (N52T)
    IMPORTANT: Aluminum-magnesium materials. No steel screws/bolts may be used due to the threat of electrochemical corrosion. A magnesium cr ...

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