Alternator Replacement Instructions

Model: BMW Serie 5 E39 - Years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Part: Alternator

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To replace the alternator, first disconnect the battery. Then, remove the engine air filter box (AIR BOX) to access the alternator.

Next, loosen the tensioner for the auxiliary belt to remove the belt and free the alternator pulley. Disconnect the wires from the back of the alternator and the corresponding connector.

Then, proceed to remove the mounting bolts: one of the bolts also supports a idler pulley. Remove the old alternator from its location and install the new (or remanufactured) one, ensuring to first insert the idler pulley, aligning the corresponding centering pin.

Updated on 16 February 2026 by ScegliAuto

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by ScegliAuto

Alternator Replacement Instructions

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