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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 11-15-2012, 08:47 AM
fritz46 fritz46 is offline
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Location: Tampa, FL
 
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Mein Auto: 2006 325CI Cab
2006 e46 convertable - headlight wiring replacement

I was told by my mechanic that I need a new headlight assembly for my 2006 325ci convertible. The car has the xenon adaptive headlights. Ignitor, bulb and ballast have been check and are okay. My guess is the wiring on the inside needs to be replaced. Does anyone know if this is possible and how to go about doing it?

Last edited by fritz46; 11-15-2012 at 08:50 AM.
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  #2  
Old 11-15-2012, 09:45 AM
G. P. Burdell's Avatar
G. P. Burdell G. P. Burdell is offline
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Location: Southeastern U.S.
 
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Mein Auto: E46
Quote:
Originally Posted by fritz46 View Post
I was told by my mechanic that I need a new headlight assembly for my 2006 325ci convertible... Ignitor, bulb and ballast have been check and are okay. My guess is the wiring on the inside needs to be replaced.
What problems are you experiencing, and what specific diagnosis did your mechanic give as justification for wanting to replace the entire assembly?
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  #3  
Old 11-15-2012, 02:29 PM
fritz46 fritz46 is offline
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Location: Tampa, FL
 
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Mein Auto: 2006 325CI Cab
problem fixed

Driver's side headlight wouldn't turn on....mechanic replaced the ignitor and bulb and shrink wrapped all the wires. Still wouldn't turn on. Today when I got it back I, being a curious type looked at the headlights. I was surprised to find that the passenger side light (which was fixed early last week) wasn't fully bolted down and there were a couple of connections that weren't connected. So I plugged them in. I also noticed when I was looking at what they did on the driver's side that the brown (ground?) wire had become disconnected. I, with much bother, reconnected it. But still no light. After some searching on the web I decided to disconnect the ground from the battery in an effort to 'reset' the system. When I tried the lights again, both came on, leveled themselves and seem to be working as before. A happy ending to a potentially expensive fix.

To answer the question about why the mechanic said I needed the assembly replaced: internal wiring was bad and could not be replaced

Last edited by fritz46; 11-15-2012 at 02:30 PM. Reason: additional info
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  #4  
Old 11-15-2012, 03:36 PM
Jimmys 530i Jimmys 530i is offline
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Mein Auto: 2003 530i
You need a new mechanic. The light control module had a code that was reset by disconnecting the battery. I just had it happen to me a week ago.
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2004 BMW 330ci Silvergray Sport Package, Cold Package, Xenon Headlamps, Premium Package, 6 Speed Manual, Build Date 9/03

Sold - 2003 325i Sedan Japanrot 5 Speed 8k Xenon Headlamps Build Date 11/02
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  #5  
Old 11-16-2012, 04:10 AM
fritz46 fritz46 is offline
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Location: Tampa, FL
 
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Mein Auto: 2006 325CI Cab
Now the adaptive headlights are tracking opposite of the steering....I turn right, they go left. Any ideas?
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