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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 11-08-2012, 01:52 PM   #1
cooter101
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Join Date: Nov 2012
Location: mn
Posts: 3
My Ride: 2003 325xi
Power cuts out over bumps

The subject states what the problem is. The power cuts out while going over bumps, sometimes it's fine though. When it goes out, most of the time it'll come back on with out me doing anything.
It just started happening on Monday. If it goes out and I pull over and turn it off, most of the time it takes about 45-60 minutes to start, meaning it will turnover but it won't start.
I noticed that while driving, when it cuts out I hear a clicking by the shifter, the hill descent light flashes on and then off, the eml lights up and turns off and the fuel economy goes bad for a few seconds.
I'm thinking it is something loose somewhere but I don't know where to start.

Car info:
2003 325xi sedan auto tyranny
109610 miles

When I initially turn the key I get a blinking -8 625 code on the odometer.
Any help will be greatly appreciated.

I uploaded a video of the whole outage while driving, here's the link:

Last edited by cooter101; 11-08-2012 at 03:12 PM.
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Old 11-08-2012, 02:49 PM   #2
SamDoe1
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Join Date: Oct 2010
Location: Minnesnowta
Posts: 3,503
My Ride: Clubs baby seals
Jeebus...this is a new one.

By power cuts out do you mean that you lose electrical power or engine power or both?

My guess is to check the battery connection in the trunk and again in the engine bay. Ensure that both are tight and no loose wires or fraying. Next check the battery and alternator for proper operation.

These cars do strange things when the battery begins to die.
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Old 11-08-2012, 03:13 PM   #3
cooter101
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Join Date: Nov 2012
Location: mn
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My Ride: 2003 325xi
When I get home I'll check the connections.

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Old 11-08-2012, 05:42 PM   #4
cooter101
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Join Date: Nov 2012
Location: mn
Posts: 3
My Ride: 2003 325xi
When I got home I checked the battery and some how the metal piece that holds it down came loose and was shorting off of the post terminal, ugh I'm an idiot.

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Old 11-08-2012, 08:10 PM   #5
SamDoe1
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Location: Minnesnowta
Posts: 3,503
My Ride: Clubs baby seals
Quote:
Originally Posted by cooter101 View Post
When I got home I checked the battery and some how the metal piece that holds it down came loose and was shorting off of the post terminal, ugh I'm an idiot.

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