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Looking for some tips on a headlight replacement. I have a 2016 G63 and recently replaced my headlights with an aftermarket pair that I purchased at Gwagenparts. I attempted to install this myself, and for the most part, the install went smoothly. The two existing wire harnesses connected to the new housing without any trouble. Having said that, the halo does not turn on, and the set of headlights I purchased also came with a standalone harness (pic below)? I have no idea where to connect this. If I had to guess, it would be to splice into the existing DRL connection to activate the halo around the lens.
Thank you for the quick response xxaarraa. I did not notice, but will take a second look. The supplier provided two of these boxes though, so I believe I need one for each light? who knows!
UPDATE: So I checked this morning and there does not appear to be a separate harness on the other headlight (or generally). I'm at a loss! I probably should have got these installed professionally instead of attempting myself.
Any other suggestions would be appreciated. Thanks all.
Last edited by Judas Priest; 01-01-2024 at 02:53 PM.
When I replaced my headlights with same style on my 2011, there was only one main connector and nothing else was required. I also never got any additional harnesses/boxes.
The housing I received was LED lights, and had the exact same two connection spots as the OEM housing. The main connection on the OEM housing had 6 pins though, and the housing I received from gwagenparts only had 4 pins. This may have something to do with it?
I have an appointment with a stud performance shop in 2 weeks. Unless I get advice beforehand from the supplier or anyone on this forum on how to fix this myself, I will post the results in this thread.
PS - for those that are attempting to replace the housing on a 2016 G63, the most difficult part is disconnecting the OEM wiring harness. I'm sure there is a trick to this, but it honestly took me over an hour wiggling, pinching, etc. to try and remove it.
Sort of related, if you find out how to adjust the headlight throw of the original headlights, let us know! After the lift install, my 2013 G63 headlights are now pointed too far down and I can't seem to figure out how to adjust the throw.
I brought the truck into a tuner shop in town to have a look at the lights, and they happened to have a tech that is a MB electrical wizard. I can't tell you exactly what he did (I know this is not helpful), but he opened the housing up and fully wired the DRL halos such that it mirrors the factory DRL settings. He did a remarkable job. No CELs, halo dims from low voltage in the dark, and switches to higher voltage and is ultra bright during the day. The halos also flash when you lock and unlock the car in the dark. high and low beams work as expected. Funny fact, he did not use the resistors that came with the headlight housing (the first pic in the post).
All this to say, if you're a newb and want a true plug and play housing, then I would not buy these lights. If, on the other hand, you know an electrical wizard and don't mind spending some extra cash to get them installed, then buy these lights - they are awesome. Ultra bright LEDs and look great on the truck.
I know another poster on this site mentioned you can buy a true plug and play off Alibaba - might be worth considering.
12-31-2023, 04:13 PM
