I've got the same problem after I replaced my front struts with Bilstein from Performanceproducts. It looks a bit disappointed, the front is alot higher now. Something is not right here, I would guess probably the Bilstein strut, but I'm too tired of remove and then replace and wait and all that hassle.
I just wonder had I replaced them with the struts from the mercedes dealer, then what would be the outcome?
Alex