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General BMW Model Discussion
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Old 01-07-2010, 07:56 PM   #1
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Join Date: Nov 2004
Location: Indianapolis, Indiana
Posts: 9
My Ride: E46 M3, X5 and 645CI
04 645CI battery drain

I have a stock 645 and battery keeps going dead. Seems like something in sound system is drawing current (system is also stock). Problem started all of a sudden....battery is good and holds charges fine. Anyone experienced this?
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Old 01-08-2010, 06:55 PM   #2
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Join Date: Feb 2003
Location: San Diego
Posts: 340
My Ride: 2004 M3 Coupe
I have this problem on my Mercedes, the passenger seat modules were draining like a pig. It was fixed, but 6 months later, the driver seat module did the same thing . Anyway, I have sold the car. I am not sure about the problem in your 6 series.
2003 330i sold
2004 ///M3 sold
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Old 01-09-2010, 10:27 AM   #3
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