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      01-06-2014, 03:38 PM   #51
rodell
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Drives: 2010 X6 5.0
Join Date: Oct 2012
Location: Seattle, WA

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I'm taking mine in for the 4th time for this problem. They told me just wasn't driven enough - even after a 300 mile one day trip. They said it wasn't fully charged - they charged it - problem came back. Then I charged it, problem came back. (Charging makes the problem go away for a month or two). Last time into the shop is was "surely fixed" with a new charge controller and a negative battery lead.

victorc, if your headlights are brighter with a full battery then the alternator is not keeping up with the current drain.
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