I have new pair of rear side coil springs on my c180K w203, it was replaced by Mercedes Authorised Garage. I hear no knowcking, it feels firm but I get the impression that I am feeling more road bumps than ever. Perhaps the c180was build this way and I didn't feel it before. Can suspension get harder with new springs? Is c180 suspension normally harder? Can someone please voice opinion on this matter?

cheers