Hello together, maybe someone can help me with this problem: I bought and had the new rear apron of the SL63 for my SL55. But now the following problem has arisen: the new Parctronic sensors at the rear do not harmonize with the control unit for the old ones, which are installed in the front apron. Either you buy six new ones and make them into the old front apron(plus control unit) or you buy four old sensors and try to get them into the new rear apron rze, which is of course much cheaper but could have a very decisive hook, namely: the new rear apron has between sensors and diffuser a slight curvature outwards (see picture) and that could mean that the Parctronic will start beeping though nothing is behind it. Maybe someone has an experience or clue about this topic. I know, complaining at a high level and even blamed if you “basked” the car with new rear apron. Many greetings from Ulrich