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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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Old 11-23-2012, 10:27 PM
BmwProject BmwProject is offline
The Shiz
Location: Utah
Join Date: Jan 2012
Posts: 4
Mein Auto: 2002 BMW 325i
Couple of dangling wires under front passenger side wheel well

So I have spent the past couple of days fixing all of my engine/radiator covers on the undercarriage, after hitting a semi's re-tread on the freeway.. (2002 325i) While I was replacing the wheel well cover on the passenger side, I noticed a couple of wires that had been stripped, (maybe by the tire tread) and I couldn't figure out what they were for. Is there another ambient air temp gauge on the passenger side? They are included in the wrapping of the fog lights, but don't appear to be for any lights. The wires are thin, and green. Thanks for helping guys!

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Old 11-24-2012, 06:35 AM
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jvr826 jvr826 is offline
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Location: In the woods. Santa Cruz County, CA
Join Date: Apr 2002
Posts: 8,850
Mein Auto: 05 330ci 6MT
Could be the fart sensor. Visit realoem.com and look up the part using the drill-down to be certain.

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Old 11-24-2012, 07:51 AM
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jonathan2263 jonathan2263 is offline
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Location: Far Hills , NJ
Join Date: Dec 2008
Posts: 3,499
Mein Auto: 325iT
Do you have self leveling bi-Zenons? Is so, it could be the wire for the sensor which is supposed to be attached to the front right control arm.

"I May Be Going To Hell In A Bucket But At Least I'm Enjoying The Ride"
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Old 11-24-2012, 10:40 PM
GoForthFast GoForthFast is offline
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Location: New York
Join Date: Jul 2004
Posts: 2,362
Mein Auto: '04 330Ci 6-speed
Snap a picture would give us a lot more to go on.
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Old Today, 02:47 PM
theidahosoprano theidahosoprano is offline
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Location: Boise, ID
Join Date: Sep 2014
Posts: 1
Mein Auto: 2001 325i
I have the same problem. I suspect that it is the ambient temperature sensor since my temperature has read -40 for about as long as I remember those wires being exposed. Wanted to be sure before I buy the parts. Can someone confirm?

Sorry for the quality of the second photo, hard to get under there. The blurry wire in the middle of the second picture is the wire I am talking about. There is also a black wrapped wire in the top left corner that I believe it is connected to. Hope someone can help me out!
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dangling wires, electrical connection

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