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E34 (1989 - 1995)

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  #1  
Old 12-18-2012, 02:13 AM
Joserob Joserob is offline
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Location: United States
 
Join Date: Dec 2012
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Mein Auto: 1995 BMW 325i
Battery Drain! HELP!

Hey everyone I have a 1995 BMW 325i. I'm having an issue with the battery draining while sitting idle (not started) for 6+ hours. I have to 10" sub woofers that I think may be draining the battery and was wondering if a capacitor would help or is there a bigger issue?
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  #2  
Old 12-18-2012, 06:01 AM
snowsled7 snowsled7 is offline
The Ornery Old Man
Location: SW Mountains
 
Join Date: Mar 2012
Posts: 980
Mein Auto: GTI
The function of a capacitor is to store energy and quickly release it upon demand. That has nothing to do with the battery draining.

Now are we talkin, "I am boomin the tunes all day and the battery goes dead" OR "The battery goes dead overnight with everything shut off"?

If it is going dead overnight, start disconnecting things one at a time to try and isolate the drain. This also may get better play in the e36 forum as their wiring is different than ours.
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  #3  
Old 12-18-2012, 11:05 AM
paperplane94 paperplane94 is offline
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Mein Auto: 1989 525i M20B25
Quote:
Originally Posted by Joserob View Post
Hey everyone I have a 1995 BMW 325i. I'm having an issue with the battery draining while sitting idle (not started) for 6+ hours. I have to 10" sub woofers that I think may be draining the battery and was wondering if a capacitor would help or is there a bigger issue?
This doesn't make sense. Idling is when the engine IS started.

If you think the batt is being drained see this thread:
http://www.bimmerfest.com/forums/sho...d.php?t=658590
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  #4  
Old 12-18-2012, 05:21 PM
snowsled7 snowsled7 is offline
The Ornery Old Man
Location: SW Mountains
 
Join Date: Mar 2012
Posts: 980
Mein Auto: GTI
Thats why I asked. He does say idle, not idlling
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Current ride... '13 GTI Wolfsburg
BMW's from my past...
'92 535i/5 '89 325ix/5
'98 750iL '86 325(e)/5
'95 740iL '84 318i/5
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