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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

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 06-18-2010, 07:10 PM
MistaDabolina MistaDabolina is offline
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Location: South Shore - Massachusetts
 
Join Date: Mar 2009
Posts: 7
Mein Auto: 1999 540i/6
Electrical gremlins

driving to work this morning in my 99 540i, I noticed that the DSC and ABS lights lit up on the display whenever I had the car in gear and giving it gas. when I was at a stop light and idling, the lights would go off. after coming back to my car in the afternoon after a day at work, the battery was completely discharged. remote unlock didn't work, no lights, nothing. I jumped it with the aid of another car, and it seemed fine. I drove it home and no DSC lights or ABS came on this time. after the 10 minute drive home, i shut the car off, then tried it again, and it started. This time the battery light came on, and stayed on. I drove it on my street, no more than 1/10 of a mile, and the DSC and ABS lights started doing the same thing (they lit up when in gear and accelerating, and turn off when idling). any ideas on what the issue could be? alternator? battery? thanks in advance for any assistance.
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  #2  
Old 06-18-2010, 10:29 PM
edjack edjack is offline
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Location: San Jose, CA
 
Join Date: May 2007
Posts: 9,054
Mein Auto: '97 540i 6 speed
Measure the battery terminal voltage with the engine off, and running at 1000 RPM.

The former s/b 12.5 V, and the latter s/b 14 V.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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  #3  
Old 07-03-2010, 10:06 PM
MistaDabolina MistaDabolina is offline
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Location: South Shore - Massachusetts
 
Join Date: Mar 2009
Posts: 7
Mein Auto: 1999 540i/6
i ended up replacing alternator and it is all set. running great!
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abs, alternator, battery, dsc, electrical


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