Almost all the glass on newer MB since the 90's has been Pilkington. I bought a new windshield from the dealer for my C280 (Pilkington), had it installed by the dealer and everything is perfect. I think the fit problems described by wtam may have been related to the original installation rather than the brand. I find that glass shops, for the most part, are awful. That sounds like the case with yours ebennz. The majority of glass installations I have seen have been botched in some way.