Im planning on buying some 19 inch rims on my 05' C230 SS. Some shops say that they will fit perfect with no problems and some say that it might rub against the inside fender when turning the wheels all the way to make a turn...

Can anyone help me out?

STFF

there was a thread about this recently...
https://mbworld.org/forums/c-class-w203/105042-19-rims-vs-rolled-fenders.html

it all depends on the offset and width of the wheels... i am running 19x8.5 up front and 9.5 in the rear.. 235/265 >>> rolled rear fenders .. and no rubbing at all...any my car is really pretty low... 2finger gap up front and half tire visible in the rear..so pretty tucked

Agreed it all depends on the offset. You can run up to 10" like SOME people