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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 12-29-2012, 12:22 PM
verse187 verse187 is offline
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Mein Auto: 2001 BMW 330CI ZPP,ZSP
Parasitic Drain problem

Well my car battery has been discharging lately within 5 hours battery will be dead i use a digital multimeter to test whats the problem and i think i found it i just need help what does the on-board monitor due i pulled out the fuse 41 and i see tremendous drop on amps you'll will see in the video and that's the only fuse that does that i have 2001 330ci

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  #2  
Old 12-29-2012, 12:30 PM
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Solidjake Solidjake is offline
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That's the fuse for navigation/radio. Did you turn off the radio before locking the car?
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  #3  
Old 12-29-2012, 12:42 PM
verse187 verse187 is offline
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Yes the radio is off
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  #4  
Old 12-29-2012, 09:24 PM
GoForthFast GoForthFast is offline
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So now you need to disconnect each of the items fed from this fuse one at a time to diagnose.
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  #5  
Old 12-29-2012, 09:46 PM
verse187 verse187 is offline
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Quote:
Originally Posted by GoForthFast View Post
So now you need to disconnect each of the items fed from this fuse one at a time to diagnose.
i just removed the fuse and my battery has not died at all so yeah time to diagnose the problem now its going to suck any diagrams to what is connected to that fuse ?
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  #6  
Old 12-29-2012, 09:53 PM
GoForthFast GoForthFast is offline
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Assume you already have the fuse chart (attached) that comes in the glove box area.

Tried to attach a spreadsheet for the fuse chart in reverse order, but this site does not permit. If you need it, PM your email address to me.
Attached Files
File Type: pdf fuse chart:e46.pdf (164.2 KB, 59 views)
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  #7  
Old 12-29-2012, 10:05 PM
verse187 verse187 is offline
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Quote:
Originally Posted by GoForthFast View Post
Assume you already have the fuse chart (attached) that comes in the glove box area.

Tried to attach a spreadsheet for the fuse chart in reverse order, but this site does not permit. If you need it, PM your email address to me.
Ok thanks
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  #8  
Old 10-30-2013, 09:25 PM
Juls18 Juls18 is offline
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same exact symptom on 330ci and fuse, were you able to figure this out?

Thanks.
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  #9  
Old 10-31-2013, 03:26 PM
jasmo74 jasmo74 is offline
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Relay

Hi there ,

You could try also with main power relay happened to me
good luck
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  #10  
Old 11-01-2013, 04:30 AM
Juls18 Juls18 is offline
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No, can't be that.

Like was mentioned by verse187, once the radio fuse was pulled it did not drain the battery and there was a substantial current drop. I tried pulling the connectors from the computer, video display etc one at a time, but I did not see any significant drop in amperage when each one was pulled individually.

However, I did see it when that fuse was pulled.
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