How to get access to wires inside headlight.
Thread Starter
Junior Member
Joined: Aug 2015
Posts: 19
Likes: 0
2011 GLK 220 CDI
How to get access to wires inside headlight.
Before I start this work I would like to ask if it's doable at all, or if I just have to buy a new headlight.
It's a R-class from 2006 with bi-Xenon. One of the headlamps has been replaced some years ago, but the left one seems to be the original one, and the light is really poor. I bought a set of new Xenon bulbs, and removed the cover to get access to the old bulb. Then I noticed that several of the wires inside the house were rotten, and the insulation was broken several places.
This must of course be fixed, but if I remove the headlight, will it be possible to open the house so I can replace the cables? I might be able to find out of this if I remove the light myself, but was hoping someone had done this before and could give me some feedback.
It's a R-class from 2006 with bi-Xenon. One of the headlamps has been replaced some years ago, but the left one seems to be the original one, and the light is really poor. I bought a set of new Xenon bulbs, and removed the cover to get access to the old bulb. Then I noticed that several of the wires inside the house were rotten, and the insulation was broken several places.
This must of course be fixed, but if I remove the headlight, will it be possible to open the house so I can replace the cables? I might be able to find out of this if I remove the light myself, but was hoping someone had done this before and could give me some feedback.
Super Member
Joined: Nov 2017
Posts: 558
Likes: 114
From: San Francisco Bay Area
2006 R500
Remove the top screw on the back of the headlight, bake it in the oven at ~225 C for about 15 minutes, then pry your headlight lens off. If you can't pry them off, turn up the temperature and/or leave them in the oven longer. I know your pain- I cut out all of the original wiring and replaced them with new wires. The solder heatshrink connectors made the process much easier.
While doing that, do yourself a favor and replace the projector. The original one will be burnt out by now and is the reason why your lights are so weak. New bulbs won't fix it.
https://mbworld.org/forums/r-class-w...-retrofit.html
Since the original D2S 5.0 retrofit, I have replaced them with NHK M5 Plus LED projectors and they are stupid bright. I thought the FX-R 3.0 with 55 watt ballasts and bulbs were like daylight before.... nope, these NHKs are even brighter. No problems with the Mercedes electronics either.
While doing that, do yourself a favor and replace the projector. The original one will be burnt out by now and is the reason why your lights are so weak. New bulbs won't fix it.
https://mbworld.org/forums/r-class-w...-retrofit.html
Since the original D2S 5.0 retrofit, I have replaced them with NHK M5 Plus LED projectors and they are stupid bright. I thought the FX-R 3.0 with 55 watt ballasts and bulbs were like daylight before.... nope, these NHKs are even brighter. No problems with the Mercedes electronics either.
Thread Starter
Junior Member
Joined: Aug 2015
Posts: 19
Likes: 0
2011 GLK 220 CDI
Thanks Tsumi!
Remove the top screw on the back of the headlight, bake it in the oven at ~225 C for about 15 minutes, then pry your headlight lens off. If you can't pry them off, turn up the temperature and/or leave them in the oven longer. I know your pain- I cut out all of the original wiring and replaced them with new wires. The solder heatshrink connectors made the process much easier.
While doing that, do yourself a favor and replace the projector. The original one will be burnt out by now and is the reason why your lights are so weak. New bulbs won't fix it.
https://mbworld.org/forums/r-class-w...-retrofit.html
Since the original D2S 5.0 retrofit, I have replaced them with NHK M5 Plus LED projectors and they are stupid bright. I thought the FX-R 3.0 with 55 watt ballasts and bulbs were like daylight before.... nope, these NHKs are even brighter. No problems with the Mercedes electronics either.
While doing that, do yourself a favor and replace the projector. The original one will be burnt out by now and is the reason why your lights are so weak. New bulbs won't fix it.
https://mbworld.org/forums/r-class-w...-retrofit.html
Since the original D2S 5.0 retrofit, I have replaced them with NHK M5 Plus LED projectors and they are stupid bright. I thought the FX-R 3.0 with 55 watt ballasts and bulbs were like daylight before.... nope, these NHKs are even brighter. No problems with the Mercedes electronics either.
