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Lighting Forum
Angel Eyes, DDEs, lighted rings, Clear Turn Signals, LEDs, Xenon, HID, or Bi-Xenon. If it lights up and you want to discuss it, post here!

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Old 01-14-2016, 07:13 PM   #1
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Join Date: Jan 2016
Location: Colorado
Posts: 3
My Ride: 325iT
Umnitza Depo headlights help

hello all, i hope this isnt a repeat but i searched around and no one has an answer to this very specific question.

so i recently purchased the umnitza depo bi-xenon headlights with angel eyes and they look amazing! (well, they both will once umnitza sends me a replacement ballast... one failed) Following the lighting guide on fastm i was able to get all but one of the factory functions. The bi-xenon high beam.

This hold high beam function is critical to me because i do a lot of rural night driving and dont want to hold the halogen high beam on for my trips.

This is activated by the driver by pushing the light toggle on the left side of the steering wheel full forward into a hold position. This is different from the halogen high beam function which does not hold. The plug that goes into the bi-xenon light (composed of purple-white, yellow-brown, and blue-green wires) to fully open the shutter from the factory wiring harness is not utilized in the umnitza headlight set.

The umnitza headlight uses a 12V and a ground wire to open the bi xenon shutter.

My question is this, is it possible to tap the plug with the three wires to activate the shutter when the light toggle is pushed into the hold position?

I still have the oem ballasts that connect to both the low beam and high beam if there is any possibility of that ballast being re-purposed to work in this capacity.

Ill keep working on a solution, maybe asking an electrical engineering buddy of mine, but any help you can afford would be greatly appreciated! Pictures to come once both headlights are functional.
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Old 02-09-2016, 09:43 AM   #2
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Join Date: Jan 2016
Location: Colorado
Posts: 3
My Ride: 325iT

I got together with my EE friend and we figured out the way to tap to get the push and hold bi-xenon function to work.

There are two red wires protruding from the bi-xenon light. Tap one of them to the highbeam ground (brown wire). Then find the unused headlight plug that used to go into the OEM ballast along with one other plug that is used. There are three wires on this plug. Two line up with each other, leave these two alone. The third one, (this is not in line and i think yellow and red but not sure on the color), should be tapped by the remaining red wire from the bi-xenon light.

Check by turning your key to the second position, flipping on the headlights, then pushing the light toggle forward in the hold position.

I contacted Umnitza and let them know how to set this up. thus far it hasn't tripped any dash lights so thats cool. Hopefully this can help someone else!
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Old 08-07-2016, 08:05 AM   #3
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Location: Arlington VA
Posts: 21
My Ride: 2005 325ci
@boomiko, I bought the p46 from Umnitza also. I have the headlights working but would like the hold high beams to work also. However, I think my wiring might be slightly different than yours. I have attached pictures and if you could help, that would be awesome.
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Old 08-07-2016, 10:39 AM   #4
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@cs33988, looks like you do have a different wiring set up. The headlights I received did not have receiving ends for all 4 of the harness plugs. Have you tried plugging them all in and trying?

I also don't see the two red wires that control the shutter coming out of your lights either, are those maybe tucked inside the bi xenon bulb casing?
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Old 08-07-2016, 08:33 PM   #5
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Location: Atlanta
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@cs33988 - looks like you may have the same lights I do. Just got mine about a week ago. I don't understand all the terminology but mine are projectors and I don't know if those use xenon bulbs or are some other technology. Anyway, I had the stock bi-xenons and now I can only flash the highs. Umnitza told me the fix for this is to have a tuner reprogram the software to make the car think it has halogens rather than bi-xenons, then the hold highs will work. I am interesting in knowing if there is another solution.

@boomiko - don't suppose your EE friend can find a work around for this can he?
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headlight, high beam, hold, umnitza, wiring

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