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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Aug-12-2012, 08:44:21 PM   #1
skelzy
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Default Help wiring Hella DRL's...

So I bought a set of Hella LED DRL's and need some help with the wiring. The wire loom only has three connections to make so how hard can this be? The kit also included a 12V relay. Here are some pics and I just need to know what connectors to splice onto end of loom and where to connect them. These are real LED DRL's and are super bright when the car is turned on and they dim when I turn the parking lights/headlights on. That said, I dont know if I can hook these up the same way guys running their fogs as DRL's because fog dont have a dim feature like these do. Anyway here are pics:





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Old Mon, Aug-13-2012, 01:43:11 AM   #2
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Default Re: Help wiring Hella DRL's...

im a lil confused. Are you running these as lights for the Day Time Running lamps instead of the factory set-up due to traffic laws? Here in canada DRL's are also madatory, I disabled the factory DRL's and installed Umnitza Angel eyes and run them as my DRL's completly legal.

From the picture of the wiring diagram it looks pretty straight forward install.
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Old Mon, Aug-13-2012, 01:52:06 AM   #3
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Default Re: Help wiring Hella DRL's...

I live in NY and we have no laws... These are legit LED DRL's and while I'm handy I just need the "idiot" version of what to do to hook these up. For example, brown wire? where does that go to? Long blue wire? Where do I connect that? Black wire? So forth... I want mine to work like these:

http://youtu.be/Tc1arS_Bi6A
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Old Mon, Aug-13-2012, 04:16:51 AM   #4
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Default Re: Help wiring Hella DRL's...

Bump to any electrical experts.... So there are three wires I have to connect here. The brown looks like a ground so I know that has to connect to the ground screw inside the passenger firewall compartment. Then I have a black wire which I assume is the power so I need to crimp on a connection (just a cut wire out of box) which I can connect to the positive terminal in engine bay to provide power. Sound good so far? Then I have a long grey wire which I suppose I need to tap into either the passenger footwell light wire or somewhere else. I say somewhere else because these DRL's have an auto dim feature to dim them when I switch on parking lights or headlights.... Also, how do I connect up the relay to these wires based on the relay pic above? Im sorry for the amautuer questions but this is my first "electrical" mod and I dont want to fry anything...
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Old Mon, Aug-13-2012, 03:28:05 PM   #5
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Default Re: Help wiring Hella DRL's...

are you planning to use the regular drl to power up these led's or use the relay?
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Old Mon, Aug-13-2012, 03:41:00 PM   #6
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Default Re: Help wiring Hella DRL's...

Long "Grey" - is the trigger which needs to be a positive source.
Brown - Is the ground for the relay
Black - is the + for the DRL
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Old Mon, Aug-13-2012, 03:49:21 PM   #7
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Default Re: Help wiring Hella DRL's...

Quote:
Originally Posted by deadlysyns View Post
are you planning to use the regular drl to power up these led's or use the relay?
Is there a choice? I have the relay that came with he kit but thought I HAD to use it. Are you saying I can hook up directly to the DRL's instead and avoid using a relay? Whats the purpose of a relay anyway? Does it protect the electronics better? Basically I want the LED's to be a daytime running light that are on whenever the cars power is turned on (like our existing DRL's). The harness has 3 wires. 1 black wire, 1brown wire and a light blue wire. Here is a pic:


Where do they connect to? (Which one is for power, etc.) I think one connects to the negative battery terminal under hood (black maybe?) to give it power, one maybe a ground (brown with loop)and the longer blue (or grey. I'm color blind) wire connects to a trigger point (upon researching this alot of people use the passenger side footwell light as a trigger but not sure if thats correct for DRL's as opposed to angel eyes becuase they want that fade effect) Sound correct? I just want to make sure I hook this up correctly and dont make my M3 catch fire lol.... TIA
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Old Mon, Aug-13-2012, 04:00:52 PM   #8
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Default Re: Help wiring Hella DRL's...

Quote:
Originally Posted by casper3t View Post
Long "Grey" - is the trigger which needs to be a positive source.
Brown - Is the ground for the relay
Black - is the + for the DRL
ok so grey wire is tapped somewhere to let it know the car has power correct? Such as footwell light or something? Brown gets grounded (Isn't threre a ground screw in passenger compartment in engine by firewall?) and Black wire connects to positve terminal under hood correct?
So all that said, how do I hook up the relay? which wires go where on the relay? Sorry but I cant make sense of that diagram in my first post. Also where do most of you mount the relay itself?
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Old Mon, Aug-13-2012, 04:01:25 PM   #9
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Default Re: Help wiring Hella DRL's...

if you want them to be always on when the car is on. Connect it to the DME power.

[IMG]http://i215.photobucket.com/albums/cc112/*******/angeleyes31.jpg[/IMG]

hmm can't link the image to here...

check out FastM.com look at step 3 and 4
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Old Mon, Aug-13-2012, 04:38:43 PM   #10
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Default Re: Help wiring Hella DRL's...

Quote:
Originally Posted by casper3t View Post
if you want them to be always on when the car is on. Connect it to the DME power.

[IMG]http://i215.photobucket.com/albums/cc112/*******/angeleyes31.jpg[/IMG]

hmm can't link the image to here...

check out FastM.com look at step 3 and 4
Ok,
But is it bad to splice into the DME? fires? Or it should be fine? Also, am I correct in saying that you do not need a relay if you want them on all the time? Just hook up wires directly without it? Basically the relay allows you to control on/off of the lights independantly? Like if I was gonna add a switch?
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Discussing Help wiring Hella DRL's... in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)