GLK-Class (X204) Produced 2008-2014

Headlight upgrade to LED

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Old Jan 31, 2024 | 03:52 PM
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2012 GLK350
Lightbulb Headlight upgrade to LED

Hey everyone, I'm looking for a little guidance on upgrading my 2012 GLK 350 headlights. I've seen LED options that claim to be plug and play and don't trigger any warnings but I'm skeptical. Does anyone have any insight into good upgrades for the glk without replacing the entire housing. (bulb replacement preferred) Thanks!
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Old Feb 1, 2024 | 01:06 AM
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Originally Posted by CamdenGLK
Hey everyone, I'm looking for a little guidance on upgrading my 2012 GLK 350 headlights. I've seen LED options that claim to be plug and play and don't trigger any warnings but I'm skeptical. Does anyone have any insight into good upgrades for the glk without replacing the entire housing. (bulb replacement preferred) Thanks!

No
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Old Feb 1, 2024 | 06:37 AM
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From: Lac Ste. Marie, Quebec
2006 Alfa Romeo Brera, 2010 GLK350, 2018 BMW 640i GT, 1997 Subaru SVX, 2012 Moto Guzzi Norge GT8V
Do a search. This has been covered many, many times.
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Old Feb 16, 2024 | 09:33 PM
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C300 W204 & GLK250 X204
Originally Posted by CamdenGLK
Hey everyone, I'm looking for a little guidance on upgrading my 2012 GLK 350 headlights. I've seen LED options that claim to be plug and play and don't trigger any warnings but I'm skeptical. Does anyone have any insight into good upgrades for the glk without replacing the entire housing. (bulb replacement preferred) Thanks!
I'll be installing Fahren LEDs in my 2014 next week. I'll let you know how they worked it..
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Old Feb 17, 2024 | 10:35 AM
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2011 GLK 350 4Matic
FWIW, here's how I did it... (might help with the fiddly installation)...

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Old Feb 17, 2024 | 12:25 PM
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From: Pennsylvania
C300 W204 & GLK250 X204
Originally Posted by habbyguy
FWIW, here's how I did it... (might help with the fiddly installation)...

https://www.youtube.com/watch?v=PWkKmiMWCL4
Thank you
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Old Jun 15, 2025 | 01:54 AM
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GLK350 2011 RWD
Originally Posted by 100Pyatt
I'll be installing Fahren LEDs in my 2014 next week. I'll let you know how they worked it..
any insights? did they fit or you returned them?

Last edited by Merciful; Jun 15, 2025 at 01:55 AM.
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Old Jun 15, 2025 | 01:55 AM
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GLK350 2011 RWD
Originally Posted by CamdenGLK
Hey everyone, I'm looking for a little guidance on upgrading my 2012 GLK 350 headlights. I've seen LED options that claim to be plug and play and don't trigger any warnings but I'm skeptical. Does anyone have any insight into good upgrades for the glk without replacing the entire housing. (bulb replacement preferred) Thanks!
did you try to install smth?
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Old Jun 15, 2025 | 02:22 AM
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C300 W204 & GLK250 X204
Originally Posted by Merciful
any insights? did they fit or you returned them?
They worked and are still working perfectly 👍🏽👍🏽
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Old Jun 15, 2025 | 01:44 PM
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GLK350 2011 RWD
Originally Posted by 100Pyatt
They worked and are still working perfectly 👍🏽👍🏽
can you please confirm the exact model you bought? I see several H7 models on their website
https://fahren-led.com/h7.html
and did you use resistors adapters or they did work without any additional harness?
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Old Jun 16, 2025 | 09:21 AM
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100Pyatt's Avatar
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From: Pennsylvania
C300 W204 & GLK250 X204
Originally Posted by Merciful
can you please confirm the exact model you bought? I see several H7 models on their website
https://fahren-led.com/h7.html
and did you use resistors adapters or they did work without any additional harness?
https://a.co/d/g4Mimr4
Hi, I used the style with the ballast, it's much brighter.
I tried 2 pairs of the ones without the ballast initially and sent them back for poor light output.
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Old Jul 7, 2025 | 04:00 AM
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S204 2008
I've had great experience with these:

H7 Osram LEDriving XTR 6000K: Kit van 2 LED lampen H7 Osram LEDriving XTR 6000K - 64210DWXTR

In combination with this kit

2x Osram LEDriving Smart Canbus LEDSC01 - Foutloos Goedgekeurde



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