If I purchase a used headlamp (bi-xenon) can I install myself?
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Member
Joined: Jul 2007
Posts: 104
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From: Virginia
2008 ML350 4Matic
If I purchase a used headlamp (bi-xenon) can I install myself?
I had heard that the dealer has to install. Can anyone confirm? I am getting the "Active Headlamp Inoperable" message.
MBWorld Fanatic!
Joined: Jun 2006
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From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
Are you talking about replacing the whole headlight assembly? Either way, yes, you can do it yourself. This only issue would be if you're replacing it with an assembly with different functions, in which you would have to have it coded by the dealer to activate/deactivate those features.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,140
Likes: 118
From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
It all depends on your skill level. The only reason it would have to be done by the dealer is if there was programming necessary. However, if you're replacing with the same part then this won't be an issue. The headlamp assemblies don't have an individual ID that requires programming, only functionality. Ie, if you tried to switch a halogen for an HID, your HID wouldn't work properly until you have it programmed accordingly. This same with standard lights versus active curve lights.
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MBWorld Fanatic!
Joined: Jul 2005
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From: New York City
C55 ///AMG, 535xi
why would you need to replace it if it's the same one? usually you can just replace the lamp or ballast if everything is functional. The headlights are actually a PITA to remove, there are a few tutorials on YouTube.
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Thread Starter
Member
Joined: Jul 2007
Posts: 104
Likes: 4
From: Virginia
2008 ML350 4Matic
Thanks, for all your help on this thus far.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,140
Likes: 118
From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
It's probably simpler just to replace the whole assembly. Otherwise you're going to spend hours in surgery on this sucker with an uncertain outcome. If you have the leeway to have the car off the road for a few weeks while you tear it apart, determine the exact failure, and order parts, then certainly you will save some money. I suspect however, you want to have your car back up and running inside a day or so.
