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Discussion Starter #1
Hi all,

First time here since i bought my BMW 520D E39 january this year. Only 80.000 km and a good price.

But i have this weird problem.

Lately my car doesn't start because the battery is dead. I replaced my old battery (9 years) but it seems i am losing power in a way. I have no idea what the problem can be and i am new into cars and DIY.

Can somebody give me a hand here without being to technical?

Thanks A LOT!
 

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Freude am Fahren
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6,378 Posts
This can get pretty technical***8230;:p

If you search for "dead battery" and "battery drain test" and similar terms you'll find lots of results.

Often the culprit is a CD changer or the FSU. The CD changer will make noise after the car's turned off, and the FSU problem manifests itself with the climate control fan being unpredictable, and running after the car is off.
 
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