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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Please help with DTM Headlight converting to HID headlight



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      01-22-2018, 06:37 PM   #1
Timmykim
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Please help with DTM Headlight converting to HID headlight

Hello guys, so recently I changed my headlights to Rolling gears DTM headlights and I wanted to put HID, but Iím new to car modding and parts. I tried to research about Converting to hid but there isnít any information andout the headlight I have. So if anyone knows anything about this headlight and what I should do please give me ideas and your knowledge. Thank you
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      01-23-2018, 12:44 PM   #2
Ali-323i
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I just used a standard H7 HID kit. No issues.
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      01-24-2018, 09:38 AM   #3
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is it ok if i get the name of the kit you used???? nd see how you did it?
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      01-24-2018, 09:43 AM   #4
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Originally Posted by Timmykim View Post
is it ok if i get the name of the kit you used???? nd see how you did it?
I just took it to a shop that was recommended to me. Told them it's H7 and I wanted 6000k... he did the rest.

I'm sure it's not much more difficult to do than swapping out a standard bulb, except it can be tight back there.

As for the kit itself, no clue. Maybe rely on online reviews? Maybe other threads here discuss reliable brands?

Good luck man!
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      01-24-2018, 02:09 PM   #5
MyLilTurbo6
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I thought the RollingGears used halogen projectors, Does using an HID in a halogen project blind oncoming traffic?
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      01-25-2018, 07:43 AM   #6
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Originally Posted by BimmerFanE90 View Post
I thought the RollingGears used halogen projectors, Does using an HID in a halogen project blind oncoming traffic?
No, still has a cut off (though it's a weird shape).

It's not a halogen reflector, which would blind oncoming traffic.
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      01-25-2018, 07:47 AM   #7
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I used a h7 hid kit from ebay.. Got myself 5k. Been using it for the past year perfectly fine.
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      01-26-2018, 06:44 AM   #8
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Kits are $30 - 300

Find one you think seems trustworthy and install it... if you have projectors (looks like a shiny lit up "ball", can't see bulb inside) you're good.... reflectors (look like pieces of mirror behind a visible bulb)? Then you need projectors
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      01-26-2018, 08:05 AM   #9
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Quote:
Originally Posted by Adieu View Post
if you have projectors (looks like a shiny lit up "ball", can't see bulb inside) you're good.... reflectors (look like pieces of mirror behind a visible bulb)? Then you need projectors
The rolling gear lights use projectors for low beam and reflectors for high beam.

See image attached, pardon the poor quality.
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      01-26-2018, 09:08 AM   #10
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Quote:
Originally Posted by Ali-323i View Post
The rolling gear lights use projectors for low beam and reflectors for high beam.

See image attached, pardon the poor quality.
Ignore the high beams, theyre more of a gimmick with HID anyway
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      01-28-2018, 11:08 AM   #11
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Quote:
Originally Posted by Adieu View Post
Quote:
Originally Posted by Ali-323i View Post
The rolling gear lights use projectors for low beam and reflectors for high beam.

See image attached, pardon the poor quality.
Ignore the high beams, theyre more of a gimmick with HID anyway
I wouldn't say that. High beams reach further down the road since there is no cut off.

Good for longer visibility in very dark areas.

Agree not much need for them driving in a city though.
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      01-30-2018, 09:19 PM   #12
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So i recently changed my bulbs to led light (just the low beam) , works just fine
i couldn't fit the dust cap so i just left it open, but i got a error message keep saying my low beam is malfunctioning. is there some thing i did wrong?
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      01-31-2018, 07:59 AM   #13
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Quote:
Originally Posted by Timmykim View Post
So i recently changed my bulbs to led light (just the low beam) , works just fine
i couldn't fit the dust cap so i just left it open, but i got a error message keep saying my low beam is malfunctioning. is there some thing i did wrong?
Yeah, you need to code your car to disable the voltage check. LED uses much lower voltage than standard bulbs, so when the new bulbs don't draw enough power, the car thinks something is wrong.

Also, I recommend cutting your dust caps so they fit around the new bulbs, but still limit dust, debris, and moisture collection inside the projector.
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      02-01-2018, 04:19 PM   #14
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Quote:
Originally Posted by Ali-323i View Post
Yeah, you need to code your car to disable the voltage check. LED uses much lower voltage than standard bulbs, so when the new bulbs don't draw enough power, the car thinks something is wrong.

Also, I recommend cutting your dust caps so they fit around the new bulbs, but still limit dust, debris, and moisture collection inside the projector.

by any chance do you know the size of the dust cap size??
btw i really appreciate your help and i gotta learn alot from you
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      02-01-2018, 04:29 PM   #15
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Quote:
Originally Posted by Timmykim View Post
by any chance do you know the size of the dust cap size??
Sorry, no clue. I ended up getting HIDs installed (just paid someone to do it, it was a reasonable cost and I couldn't be bothered, lol).

Quote:
Originally Posted by Timmykim View Post
btw i really appreciate your help and i gotta learn alot from you
You're welcome! I learned a TON by reading numerous posts here, and also getting support from other members... so I feel it's only fair for me to support where possible.

The only rule I suggest is that you read as much as you can before asking questions. Often times people ask the same Q over and over, and our knowledgeable members get tired of answering over and over again, and then become less responsive. I'm not saying you're doing that, just that it's my #1 rule before posting.

Good luck with everything!
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