In the Sport version
of the front bumper, it varies to model year! I have a '98
C280 Sport which has the grated section below the front bumper for NO air passage. Starting in the '99 model year this grated section is an OPEN grate letting more air in. So when asking at the dealer for the newer grate, couldn't find the part in the CD/parts info.
So, if the dealer can't find the correct part what do you do? I'm not about to start drilling out each section of the grate...not in my lifetime! Since still under warranty, it's an MB/C-USA problem if it overheats. OK so far.