C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

Kit for headlamp rewire?

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Old Oct 26, 2022 | 08:11 PM
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cabochad's Avatar
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2008 C300 Sport
Kit for headlamp rewire?

So, we all know the wiring internal to the headlights is total junk. Is there an aftermarket kit out there that lets you convert/replace the entire 5 bulb harness with an external one? Not going to pull the headlights, bumper, trim, heat and unseal/reseal the lens, etc. BS. Something that would plug into the harness plug and then direct into the 'socket holders' in the current design.

Anything like that out there?

Thanks,

chad
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Old Oct 27, 2022 | 10:04 PM
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Yes, there are various options. Their primary intent is to ensure a full 12V is going to the headlights.

You plug their harness into the wire harness plugs, which then acts as the trigger/signal. The relays then send a full 12v to the bulbs.

https://www.theretrofitsource.com/hd...-H7?quantity=1
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Old Oct 28, 2022 | 07:38 AM
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2009 MB C300 Sport 4matic
I think the poster is looking for the interior headlight wiring which would include the 2 parking 194 bulbs or "eyebrows" where the OEM wiring and bulb holder melt, crack apart. Correct me if wrong.
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Old Oct 28, 2022 | 12:27 PM
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2008 C300 Sport
Originally Posted by gamma300C
I think the poster is looking for the interior headlight wiring which would include the 2 parking 194 bulbs or "eyebrows" where the OEM wiring and bulb holder melt, crack apart. Correct me if wrong.
Yes, that is what I am after. If nothing else, can someone point me to the wiring diagram/color coding, and I will just run the two eyebrow bulbs 'outside of the headlamp fixture.' I believe there are 9 wires that come out of that harness, then all go inside the headlamp assembly.

Thanks,
chad
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