E46Fanatics - View Single Post - Is it the Battery or the Alternator? PLEASE ADVISE!!
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Old 12-11-2012, 03:27 PM   #2
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Join Date: Feb 2012
Location: The Best Place on Earth
Posts: 2,476
My Ride: 2003.5 M3
1. Remove battery.
2. Take battery to shop to have it tested.
3. If the battery is > 6yo then likely it needs to be replaced.

Why guess when you can test and get a definitive answer. Borrow a car or take a cab/bus if you need to, removing the battery is simple.
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