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Battery Drain

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Old Feb 22, 2005 | 07:43 AM
  #21  
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Originally Posted by russo' date='Feb 20 2005, 01:33 AM
Most likely due to the alternator. If it is not charging enough to the battery, this might happen. Alternatevly, if you did install any ICE in the car, there could be a current leak in the amp, speakers and all other components. You might want to bring it to the ICE man to check.
[snapback]92303[/snapback]
No ICE.
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Old Feb 22, 2005 | 07:57 PM
  #22  
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Originally Posted by rfg17' date='Feb 18 2005, 09:11 AM
I have a 3 month old 525i with about 3500 miles on it.? About a month ago, it started to develop a problem where the battery drained overnight.? A few weeks ago, I brought it in for service.? They tested the car out, could find nothing obvious wrong with it and gave me a new battery on the theory that the battery may have been defective and developed a memory problem where it did not fully charge.

Now, three weeks later, the same problem recurs.? I called my service center and he thinks the problem may be with the computer waking up overnight.

Has anyone else had a similar problem?? If so, what was the resolution?
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Just be glad that when your car wakes up at night, it doesn't go out "sleep-driving"
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Old Feb 23, 2005 | 07:29 AM
  #23  
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So the answer is: Bluetooth. I keep a SE T610 celphone in my car turned on at all times. The dealer says that this is keeping the car from going to sleep and eventually draining the battery, even though the key is off.

This, of course, is not documented anywhere in the manuals, etc.

So be warned...if you use bluetooth, make sure to turn the phone off or take it with you.
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Old Feb 23, 2005 | 07:32 AM
  #24  
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Originally Posted by rfg17' date='Feb 23 2005, 11:29 AM
So the answer is:? Bluetooth.? I keep a SE T610 celphone in my car turned on at all times.? The dealer says that this is keeping the car from going to sleep and eventually draining the battery, even though the key is off.

This, of course, is not documented anywhere in the manuals, etc.

So be warned...if you use bluetooth, make sure to turn the phone off or take it with you.
[snapback]93527[/snapback]
Aha! That makes some sense.

If that is indeed true, you might want to post this information as a new topic so other BT users can chime in with their experiences.
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Old Feb 23, 2005 | 07:48 AM
  #25  
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Nice job and thanks, rfg17!

http://forums.e60.net/index.php?showtopic=7545&hl=
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Old Feb 23, 2005 | 08:46 AM
  #26  
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I had the same problem which turned out to be a short in the alarm siren.
Replaced siren/tilt sensor.
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Old Feb 23, 2005 | 12:20 PM
  #27  
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That makes sense too -- I guess that sensor doesn't sleep...
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Old Mar 16, 2005 | 10:30 AM
  #28  
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So this is an update on this problem of the car spontaneously seeing a battery drain when left overnight. (2005 525i 9/04 build date).

Originally, the dealer thought this was due to my keeping the BT phone on and in the car overnight. Indeed, when I stopped doing this, the incidence of the drain dropped from every night to once every week or two.

The dealer has now had the car for two weeks and the SM called me to say that it finally died again last night. They did see the car wake up, but are not quite sure why.

Meanwhile, I am talking to the Sales Manager about getting the car replaced or getting out of the deal entirely and giving up on the E60. Not sure what I am going to do. One part of me just wants to find a nice 2003 E39 and go that route.
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Old Mar 16, 2005 | 10:38 AM
  #29  
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same problem. Went in the garage; replaced battery, problem came back again. I see the light of the automatic transmission is still working.

(always the same problem;BMW did not learn about the mistakes; DO NOT USE MICROSOFT in your system;Maybe a solution=CLOSE ALL WINDOWS AND RESTART or call microsoft for support (hahahaha)
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Old Mar 16, 2005 | 10:52 AM
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Originally Posted by Guest' date='Mar 16 2005, 02:38 PM
same problem. Went in the garage; replaced battery, problem came back again. I see the light of the automatic transmission is still working.

(always the same problem;BMW did not learn about the mistakes; DO NOT USE MICROSOFT in your system;Maybe a solution=CLOSE ALL WINDOWS AND RESTART or call microsoft for support (hahahaha)
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Where are you? What dealership? How did you get it resolved? Did they open a PUMA case on it?
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