the glass lens can be bought separately and they are actually removable too without resorting to heat.

If you are ebaying the item then make sure the lens is for a LHD car. I have seen some sellers selling some headlamp lenses for supercheap money for other mercedes (W210 etc) which were RHD spec

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)