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 ...

    Replacing solenoid switch
    Turn off ignition. Remove starter motor. Release nut (1). Remove cable lug (2). CAUTION: Do not turn cable lug (2) while tightening down ...

    Other materials:

    BMW X3 Service & Repair Manual > Troubleshooting: Instructions for removal and replacement of control units
    IMPORTANT: Disconnecting the vehicle battery will cancel the fault memories of control units. Consequently, before disconnecting the car's battery, always interrogate the fault memories. Investigate stored faults and, once any faults have been remedied, cancel the fault memory. ...

    BMW X3 Owners Manual

    BMW X3 Service & Repair Manual

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