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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 10-04-2012, 06:58 PM
Sherlock717 Sherlock717 is offline
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Location: Texas
 
Join Date: Jul 2012
Posts: 6
Mein Auto: 2003 BMW 540i
Exclamation Battery indicator light? Help!

Ok guys, I just bought a new battery from auto zone, it meets all the requirements and is bigger than the stock battery. I've had it now for about six weeks and now all of the sudden the battery light comes on the dash and i have no idea what it's from. It starts fine and nothing else is wrong. Any thoughts???

Thanks.
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  #2  
Old 10-04-2012, 07:06 PM
MINI+BMWtek MINI+BMWtek is offline
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Location: Houston
 
Join Date: May 2012
Posts: 172
Mein Auto: e30 318
Proper size battery is very important not just rated specs as battery hold downs will not fit properly. I will test battery,charging system and

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Old 10-04-2012, 11:08 PM
edjack edjack is online now
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Location: San Jose, CA
 
Join Date: May 2007
Posts: 9,206
Mein Auto: '97 540i 6 speed
Take the car to AutoZone for a battery and alternator test.
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  #4  
Old 10-05-2012, 03:11 AM
helpmyfive helpmyfive is offline
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Location: Ada Michigan
 
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Mein Auto: 528i
Alt bad. It wasn't making enough juice and killed your battery. You fixed the symptom not the problem.
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  #5  
Old 10-05-2012, 09:40 AM
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bluebee bluebee is offline
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Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,248
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by edjack View Post
Take the car to AutoZone for a battery and alternator test.
What he said.

The only thing I'd add is to CHARGE the battery first, before taking it to Autozone.

Read why in this thread:
- DIY how to test a BMW E39 battery & alternator
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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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