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Discussion Starter · #1 · (Edited)
DIY: LED DRL @ Full Brightness with Headlights on
Disclaimer: I, nor anybody else is/are responsible for anything that happens, to you, your car, anybody around you or whatever else. There is NO warranty nor any guarantee on this. You proceed at YOUR OWN risk. This worked for me, my car still drives and I'm still alive.
PLEASE take the time to read through the wall of text as it can possibly help understand what needs to be done, and give you a general idea of what to do before you begin, although it’s not complicated, it might answer some questions and prevent some headaches.​
Notes & Information

  • Certain VW's have LED DRL's such as our Golf R, GTI's, GLI, Tiguan, and others. By default, those DRL's will DIM when you turn the headlight switch into the headlight position, and parking position (if you have the euro switch)
  • This DIY will keep your DRL's at full brightness all the time. They will NO longer dim. THESE specific instructions PREVENT them from dimming.
  • I've searched for a solution via coding for a long time, messing around in different VCDS blocks, trying different things, contacting Ross-Tech, and others. I haven't been too successful. If there is ever a way to do it via coding, discovered by myself or anybody else, I would hope it gets posted.

What’s needed for this project?

  • Scissors/Knife
  • T-25 torx (bumper removal)
  • Zip Ties (securing wires)
  • Two weatherproof quick splices (I used Part#:85462 from Advanced Auto Parts, 18-14 gauge) / POSI-TAPS are another great option
  • Electric Tape / Cloth-type for oem look?
  • Vise grips
  • Terminal Removal Tool (highly recommended)
  • Repair wire with part # 000-979-150 If it has a pin on both ends, you need one, if not, you need two.

I did not take many pictures as it is all rather self-explanatory. Read through and review first, you'll know what's going on, and what to do.

First and foremost
Make sure the ignition is off, lights are off, cool engine helps so you don’t accidentally burn yourself anywhere and if you want to get crazy, disconnect the battery.
Do one side at a time, it doesn't matter which side you start on

Step 1: Remove the front bumper. I will not outline the steps here as there are other DIY's available for that, I do not believe this can be properly done without removing the bumper, if you can, great :thumbup:

Step 2: With bumper removed, disconnect DRL from car.

Step 3: With the connector hanging free, take a look at the one on the car side. It's a 3 pin-female. Your interest lies in pin 1 & 3.

Inside the connector there is a pink "lock", pull it out until it's flush with the opening on the side. It doesn't necessarily need to be pulled out all the way.


The wires you're interested in.


Step 4:
Take your terminal removal tool and remove the gray/red wire from the car side connector. (I believe it was #1) Tape it up good, so it's "sealed" just in-case. You won't need it for the rest of the steps.

I highly recommend a terminal removal tool as doing it without, might damage the connector, pins, or both.

Slightly bent terminal tool with pink lock removed


Step 5:
Take the repair wire and cut it in half (if yours has the pins on both ends)



Step 6:
Slide the pin/terminal into the empty hole on the connector (#1) until it bottoms out, and then slide the pink lock back into place. Give the wire a small tug to see if it stays in place.

Step 7:
Take your weatherproof quick splice, or whatever else you want to use and put it over the blue/green wire at position #3. Take the repair wire you put in position #1 and slide it into the quick splice. Squeeze it and close it.

* ignore the two yellow wires I have in the picture, I was fixing one of my wires I screwed with. Yours will be green/blue or black, iirc it's different on both sides. *




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OPTIONAL step (skip if not interested) if you want to wire up city lights to be on with the DRL lights. follow my DIY for the city lights until you get to the step of wiring them in.
Link to city light DIY: https://forums.vwvortex.com/showthread.php?5766293-DIY-VW-Golf-R-City-Lights

All you simply do is take the wire from the city lights and put it in together with the quick splice. So instead of having only two wires there, you'll have three.
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Step 8:
Now test it, connect the connectors back together. Ignition on, turn headlights on and check to see that one DRL is now bright and the other is dim.

If done right, it will work. If something doesn't work, check to make sure the quick splice is good and make sure the new repair wire you put in is in properly.

Step 9:
As a safety precaution, after testing, I wrapped the quick splice with electrical cloth tape even though quick splices are supposed to be weather proof. Doesn't hurt to have an extra barrier.

Step 10:
Repeat for other side.

Step 11:
AFTER TESTING again, ziptie wires together if you want to prevent them from flapping around, and reinstall bumper.

That's it!

Enjoy, feel free to ask any questions and/or comments. I did this DIY since I figured others would be interested so if it did indeed help a simple thanks would be nice. Support is always appreciated and goes a long way.

Short vid showing the end result:
http://www.youtube.com/watch?v=nubHKY7CrC8

End result pics:


 

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Discussion Starter · #6 ·
What happens if you leave the city lights wired to the side markers like the original DIY and just jump the grey and black DRL wires together to stop the dimming?
Good question.

Nothing will really change, except that your city lights will only go on when you have the switch in the parking light position or headlight position.
 

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nice.

you mentioned knowing something about knowing how to make it do the dim and full brightness on a switch. my euro switch actually has the rear and front fog option, I'd like to wire the LED's to function essentially as a fog light setup, so ability to switch on full bright in parking light and lights on.

if you wouldn't mind indulging me with some info on how to possibly do that that would be awesome. I'd like to do it all when im doing my meth install because Im most likely going to be taking the whole bumper off so it looks like this would be an easy thing to double up on while im in there. :wave:
 

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Good question.

Nothing will really change, except that your city lights will only go on when you have the switch in the parking light position or headlight position.
Isn't that how it works when the city lights tap into the DRL too? Switch off = everything off, switch position 2 = city and DRL, switch position 3 = everything on.

I haven't bothered with the euro switch in my car (yet), just wired the city lights since my side markers are shaved. I actually ran the side marker wires right up to the headlights and cut off the side marker bulb socket all together since I'll never use it again. I was curious since I knew Rick would ask me to rewire his this new way as you can see he just did. :laugh:


Hey XSSIVE ...you know you're going to have to wire this up on my R :laugh::laugh:
Yeah yeah yeah, I know. :laugh: Email me when you're free next.
 

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Discussion Starter · #11 ·
Isn't that how it works when the city lights tap into the DRL too? Switch off = everything off, switch position 2 = city and DRL, switch position 3 = everything on.

I haven't bothered with the euro switch in my car (yet), just wired the city lights since my side markers are shaved. I actually ran the side marker wires right up to the headlights and cut off the side marker bulb socket all together since I'll never use it again. I was curious since I knew Rick would ask me to rewire his this new way as you can see he just did. :laugh:




Yeah yeah yeah, I know. :laugh: Email me when you're free next.
True. The only benefit if wiring directly to DRL would be for those that want city lights but don't have the Euro switch

I'll update accordingly later today.
 

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Warning. I got a fault core for bulbs.

Gotta check and see what it is.
I'll keep updated
That happened to Rick's car when I wired his city lights to his side markers and left the side marker bulbs in also. It seems when there are two bulbs drawing power from one source the system sees it as an fault. As soon as he pulled the side marker bulbs it cleared the fault and the city lights and all other lights worked as they should (minus the painted over side markers he didn't need or want anyway). I think by tapping the city lights into the DRLs it did the same thing. I'd try running the city lights off the side markers, leave the side marker bulbs out and then just jump the black and grey for full brightness on the DRL.
 

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This isn't really necessarily true for everyone it seems.

Did he have LED tail lights at that time?
Yeah he has LED tails no fog. The odd thing is it would shut off the city lights and license plate lights and throw a fault for the license plate lights being out. As soon as the side bulbs were removed it was fine.
 
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