Hans:
I know I checked this out before and it seems to me it fit. I am almost certain that if you order the tail light assembly, it comes with the bulbs and bulb plate, and the side marker (the additional light on the side) has it's wiring attached to the bulb plate. It should be as easy as replacing the tail lights. I don't believe there is any problem with the extra bulb on each side, as the ML doesn't have a lamp failure monitoring system.
If you are desperate for confimation, I can find a newer one and look at it again.

Gilly

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