BMW X3 Service & Repair Manual: Removing and installing or replacing alternator (N55)

BMW X3 Service & Repair Manual / Electrical / Alternator with drive and mounting / Removing and installing or replacing alternator (N55)

Necessary preliminary tasks:

  • Switch off ignition
  • Disconnect BATTERY EARTH LEAD and cover.
  • REMOVE LEFT CHARGE AIR DUCT .
  • Remove alternator DRIVE BELT .

NOTE: In order to remove the alternator, it is necessary to remove . In so doing:

  • Do not draw off air conditioning refrigerant.
  • Do not detach refrigerant lines from A/C compressor.
  • Do not remove air conditioning compressorĶ¾ instead, release from bracket only and place to one side.

Release screws (1).

Release screw (2).

Release screw (3) and remove with holder (4).

Electrical

Unlock connector (1) and remove.

Remove protective cap (2) and release nut underneath.

Remove positive battery cable(3).

Electrical

NOTE: For purposes of improved clarity, illustrations and description show A/C compressor removed.

Release screws (1) a few turns until bracket (2) is loose. Do not remove bracket (2).

Feed out alternator (3) and remove.

Electrical

Assemble engine.

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