Okay so I know a similar thread has been created already in reference to doing a halogen to an OEM Xenon conversion. However, I'm still slightly confused and wanted to know is there a difference between the Xenon lights on pre-face lifted models ('07-'09) and face lifted models ('10-'12). I have a 2007 GL450, but I have found a 2008 GL450 Xenon headlamp for the right side on eBay, but the left side I found came from facelifted 2010 GL model. Will the two headlights work fine with each other?

Bump

Should be the same. I believe the headlights were used from 2007 - 2012.

I was looking at some other threads and I saw something about AFS being dropped at some point. I'm not sure about that though. I'm hoping the two headlights work fine together...

So I've finally found a nice set of OEM Xenon assembly on eBay, howver, I need to figure out what's the part number for the fourth wire of the Xenon assembly that's different from the halogen. Anyone know the part number or where I could get the fourth wire harness from?