'04 X3 140K miles; alternator bad? - Bimmerfest - BMW Forums

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X3 E83 (2004 - 2010)
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Old 12-14-2010, 10:08 PM
dj_2latino dj_2latino is offline
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Location: Boulder, CO
Join Date: Feb 2009
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Mein Auto: 2004 X3
Exclamation '04 X3 140K miles; alternator bad?

Woke up this morning, could not start my car. Symptoms of a dead battery. Removed battery, took to mechanic, charged it, tested it, said it was fine. Mechanic is pointing to a possible alternator malfunction. Are alternators on the X3 known to go out around this mileage? Should I be looking into something else?
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Old 12-15-2010, 04:29 AM
kenza kenza is offline
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Location: Santiago, Chile
Join Date: Aug 2009
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Mein Auto: 2007 X3 2.0d MT
I would suggest to take your car to a battery shop where they can test your alternator. It can go bad at 140K miles, probably just need maintenance.
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Old 12-15-2010, 07:44 AM
szee1 szee1 is offline
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Location: Las Vegas
Join Date: Aug 2009
Posts: 144
Mein Auto: 2 2004 X3's
Just some possibles:
Battery died because interior light or other power draw left on overnight.
Battery died because of electrical malfunction in vehicle.
Bad starter.
Bad battery.
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