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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 12-28-2003, 01:33 PM   #1
Scott
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Bixenon retrofit DIY

I wired up my bixenons and wrote a DIY today. I'm too lazy to re-key it here, see link below:

http://www.bimmerfest.com/forums/showthread.php?t=46813

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Old 12-28-2003, 02:15 PM   #2
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Re: Bixenon retrofit DIY

Quote:
Originally posted by Scott
I wired up my bixenons and wrote a DIY today. I'm too lazy to re-key it here, see link below:

http://www.bimmerfest.com/forums/showthread.php?t=46813

--Scott

scott ur the man!

been waiting for the diy since you accomplished this awhile ago!!!

thx!!
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Old 12-28-2003, 03:45 PM   #3
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after seeing the installation i dont wanna do it anymore its just too confusing
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Old 01-02-2004, 11:14 PM   #4
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No offense, but if connecting 5 wires is too confusing, you are probably better off not attemptiing it.
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Old 01-03-2004, 10:35 AM   #5
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Quote:
Originally posted by Scott
No offense, but if connecting 5 wires is too confusing, you are probably better off not attemptiing it.
It's only 5 wires. Scott, do you happen to know if the pre-facelift LCM's are the same as the facelifted LCM's? I'm doing a xenon to bi-xenon retrofit on my car.
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Old 01-03-2004, 11:53 AM   #6
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pre/post facelifted LCMs are *not* the same, when xenon (or bixenon) is fitted.

The pre-facelift LCM will not have the pinout config to activate the shutters via the LCM, although you can use the stock highbeam/H7 wiring if you donty mind losing the flash to pass.

I have a facelifted bixenon LCM that I'll sell for $50 shipped (I bought it but didn't use it). Dont know if it will work in your car though. It also has the "auto" lights feature.
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Old 01-19-2004, 12:42 PM   #7
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Scott- I noticed in your final DIY you decided not to go with a diode across the relay. Do you think this would still be a good choice? Any problems noted with the lights after your upgrade? I want to thank you for taking your time to type up the DIY.

--Brad
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Old 01-19-2004, 12:50 PM   #8
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No probs...

No problems, my lights still work fine.

If the ETK diagram is correct, the relay I used has a pair of diodes built into it. I dedided to skip the external diodes.

The reason to add a diode is to prevent a voltage spike from reversing into the LCM (via the bixenon shutter lead) when the coil is de-energized and the mag field collapses. The diode blocks this and protects the LCM.

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Old 01-19-2004, 12:54 PM   #9
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Thanks Scott. Have you attempted to retrofit the autoleveling sensors yet?

--Brad
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Old 01-19-2004, 01:09 PM   #10
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anyone in CA wanna install these for me?
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Old 01-19-2004, 01:10 PM   #11
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Nope, been too lazy/lots going on/kids.

The sensors are easy, the wiring is the PITA.

Stay tuned... maybe in the Spring.
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Old 01-20-2004, 01:43 AM   #12
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Damn, now I just need to figure out howto use a facelifted lcm in my pre-facelifted 330i. Its good to see its not hard to wire up once you've got an lcm that works with it.

-Chris
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Old 03-08-2004, 06:51 AM   #13
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don't want to sound like an a$$hole after your very nice installation but is there a way just to ghetto rig it. WIll it simply work by hardwiring it from the existing hi-beam wires? I was thinking buying the harness and expererimenting with the power from the high beam wires. I told myself I wouldn't do major work to this car because when I went to trade in my last car, I was so pissed at all the massive amounts of wires and just everything that I did. The simpler the better for me. But if it won't work, i might attempt your DIY. its a great write-up. What do you think of the hardwire? do you think it will work?
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Old 03-08-2004, 10:02 AM   #14
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You can't ghetto rig it from the high beam wires because they get connected to the inner halogen lights. Those are still used for flashing, and daytime rumnning lights. You could possibly introduce a ton of problems if you try to cut/paste/splice those wires to try to rig something. I can vouch for scott's diy, it's a real good write up and not tough to do at all. I used his diy to get the highbeams going in a friend's car. My next goal when I get time will be the autolevleing for that car. Wiring the car scott's way really is painless and is a clean install.
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Old 03-08-2004, 10:11 AM   #15
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wait, so the halogens are still used with bi-xenons. i thought that they weren't used but just there for looks and DRL. so during the daytime, there used for flashing and when the headlights are on, the bi-xenons are used. is that what you are saying. i have no experience with these so forgive me if i'm wrong. i think thats what I got from your post. Also, i read that you may need a new LCM right.
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Old 03-08-2004, 10:42 AM   #16
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The inner halogen (your highbeams now) are used for both the daytime running lights and flashing, like when you pull back on the turn signal stalk. Pushing forward on the turn signal stalk will turn on the bixenon highbeams (just like now how it turns your brights on now and keeps them on). The bixenon will do both the low and high beam right out of that same projector...all the highbeams are is that flap opening up to let more light out.

I can't say for sure if you need a new lcm, the car I upgraded was a 2002 coupe, and we had it flashed at the dealer to accept the bixenons. You may need a new LCM since i don't think that bi-xenons were available in 01. If they were available when your car was built then chances are you may have the correct lcm.
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Old 03-09-2004, 05:56 PM   #17
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Quote:
Originally Posted by bradleyg
The inner halogen (your highbeams now) are used for both the daytime running lights and flashing, like when you pull back on the turn signal stalk. Pushing forward on the turn signal stalk will turn on the bixenon highbeams (just like now how it turns your brights on now and keeps them on). The bixenon will do both the low and high beam right out of that same projector...all the highbeams are is that flap opening up to let more light out.
Correct - you cannot operate the bixenons using the existing high beam wiring - you must tap into the LCM to make them work. Once the car is flashed for bixenons, your high beam wiring ceases to function as high beam wiring - it only works for DRL and flash to pass.

bradleyg - thanks for the compliments, glad to help.
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Old 03-22-2004, 12:10 PM   #18
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Scott,

Just PM'ed you with a quick question!
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Old 03-22-2004, 02:38 PM   #19
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Scott,

Just PM'ed you with a quick question!
Just replied
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Old 03-29-2004, 12:38 AM   #20
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anyone in CA wanna install these for me?
dude, you dont even have a car or a license so why would you want stuff installed
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