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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Pre-Lci Halogen to Xenon



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      09-11-2011, 09:55 PM   #1
sterz85
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Pre-Lci Halogen to Xenon

I've done my search and read the DIY threads before making this thread, so here's the question I wasn't able to get an answer to from the existing threads:

The wiring, I've read in a thread or two that it can be done without any cutting of the factory wiring. The required wiring can be done inside the headlight... this is where I'm getting lost because I haven't found a DIY showing how it can be done.

Is there a DIY out there about the wiring in the headlight?
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      09-11-2011, 10:53 PM   #2
DESI4life10
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If you want to do the wiring inside the headlight, this is how it's done.

1) Locate the "black" wire that leads into the ballast.
2) Locate the "brown" wire that is connected to the halogen bulb
3) Using a "butt" connector, tap these 2 wires together. Tap them as close as you can towards the main connector (gives you enough slack if you need to every change your halogen bulb)

Here is how I did it,


This will allow the lowbeam xenon light's to turn on.
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      11-24-2011, 10:42 AM   #3
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Quote:
Originally Posted by DESI4life10 View Post
If you want to do the wiring inside the headlight, this is how it's done.

1) Locate the "black" wire that leads into the ballast.
2) Locate the "brown" wire that is connected to the halogen bulb
3) Using a "butt" connector, tap these 2 wires together. Tap them as close as you can towards the main connector (gives you enough slack if you need to every change your halogen bulb)

Here is how I did it,


This will allow the lowbeam xenon light's to turn on.

Mind if i ask what type of headlights you have? Did you have any error codes
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      11-24-2011, 04:38 PM   #4
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OEM Pre-LCI Euro Xenon headlights.

Used all oem parts (ballast, bulbs etc) and coded the car.

No errors.
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      11-26-2011, 02:22 AM   #5
heemry328i
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don't risk it call the experts worth saving ur electrical n 3000k in repairs.

call jay pr Damon bought my third set from jay worth every penny not having to worry
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      11-30-2011, 02:30 PM   #6
respectBMW
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Have you done the conversion yet?
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      11-30-2011, 07:11 PM   #7
DESI4life10
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Quote:
Originally Posted by heemry328i View Post
don't risk it call the experts worth saving ur electrical n 3000k in repairs.

call jay pr Damon bought my third set from jay worth every penny not having to worry
LOL...how is using a harness with resistors not risky?

The OEM way is to code the car and not "fool" it by using a harness.
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      10-07-2012, 05:35 AM   #8
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is it the same if I'm doing this to LCI xenons?
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      10-07-2012, 05:35 AM   #9
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plz help me guys. my heads about to explode from people saying different things
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      04-25-2013, 05:54 PM   #10
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Quote:
Originally Posted by DESI4life10 View Post
If you want to do the wiring inside the headlight, this is how it's done.

1) Locate the "black" wire that leads into the ballast.
2) Locate the "brown" wire that is connected to the halogen bulb
3) Using a "butt" connector, tap these 2 wires together.
Tap them as close as you can towards the main connector (gives you enough slack if you need to every change your halogen bulb)

Here is how I did it,


This will allow the lowbeam xenon light's to turn on.

this is all you did to get your xenons working??
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