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X5 E53 (1999 - 2006)
The X5 SAV Forum

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  #1  
Old 02-20-2012, 09:29 PM
Iwishshewereded Iwishshewereded is offline
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Location: santa rosa
 
Join Date: Feb 2012
Posts: 2
Mein Auto: x5
2005 Battery Problem?

Hi,
my X5 battery is new, as is the alternator recently. There is a noise under the dash, like a motor or a compressor sound? It is draining the battery over-night. Any suggestions? Thanks in advance.
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  #2  
Old 02-21-2012, 02:47 PM
boramkiv's Avatar
boramkiv boramkiv is offline
Propellers Up Front
Location: Chesapeake, VA
 
Join Date: Jan 2011
Posts: 1,882
Mein Auto: Some Bavarian car outside
If the noise stays on after shutting the vehicle down it may be your FSR (Final Stage Resistor)

http://www.xoutpost.com/articles/x5/...placement.html

http://www.realoem.com/bmw/showparts...75&hg=64&fg=40

Good Luck!
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  #3  
Old 04-02-2012, 09:43 PM
Iwishshewereded Iwishshewereded is offline
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Location: santa rosa
 
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Mein Auto: x5
Thanks I'll try one!
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  #4  
Old 04-10-2012, 06:31 PM
533-3.8 533-3.8 is offline
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Location: nothern sierras
 
Join Date: Nov 2005
Posts: 125
Mein Auto: 1988 325ix '88 325ix
I have the same "tiny fan" noise did you get it fixed?
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'88 325ix
'89 325ix
'04 x5 3.0 (104k)
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