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Old 09-30-2016, 01:19 AM
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Quote:
Originally Posted by FREE-PPV View Post
Greetings,

New here, so I have a question perhaps someone can answer. I have 03 X5 and battery light came on, replaced battery a couple months ago, and now alternator died as there is no voltage coming out of it.
Just so you know for the future, the "battery" light coming on is actually telling you the alternator is failing - the "battery" light does not indicate the state of the battery itself but the state of the charging system.

Given the full replacement cost of the water-cooled alternator, it is likely worth looking into repairing and/or replacing the internal components that have actually failed; as you suggest, the regulator is one possibility, as are the brushes, as mentioned by oldskewel.
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2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
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