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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 10-28-2015, 09:00 AM
RicePudding RicePudding is offline
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Location: canada
 
Join Date: Sep 2014
Posts: 27
Mein Auto: 02 525i
Alternator do i need a 90 or 120 amp

GoodDay All,

Alternator is shot.. I have an 02 bmw 525i 190 000km... do i need a 90 amp
or 120.. to replace the existing one..

cheers, thx u
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  #2  
Old 10-28-2015, 09:06 AM
edjack edjack is offline
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Location: San Jose, CA
 
Join Date: May 2007
Posts: 12,045
Mein Auto: '97 540i 6 speed
S/b a 120, at least. Most models have a 140.
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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 10-28-2015, 09:22 AM
RicePudding RicePudding is offline
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Location: canada
 
Join Date: Sep 2014
Posts: 27
Mein Auto: 02 525i
THxs for the quick reply.. Does that mean the stock oem original alternator is a 140?

im in canada, most stores say they only carry 90-120amp

Thxs
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  #4  
Old 10-28-2015, 09:41 AM
edjack edjack is offline
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Location: San Jose, CA
 
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Mein Auto: '97 540i 6 speed
Looks like you can use either. What's on it now? http://www.realoem.com/bmw/enUS/show...diagId=12_2078
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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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  #5  
Old 10-28-2015, 10:25 AM
JKRIT JKRIT is online now
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Location: Hollis, NH
 
Join Date: Feb 2008
Posts: 857
Mein Auto: '03 525i
With a small mirror and flashlight, you can read (backwards) the tag on the rear of the alternator to find the amp rating.
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