Hi please can some one help i have own a 2003 clk 320 convertable .i have a knocking noise from the front suspension i have had all the ball joints checked at my local MOT garage nothing found also had the anti rollbar links replaced and it is still there , if you go over large bumps nothing happens but if you go over a rough road you can feel the knocking. The knocking is more on the drivers side than the passenger side.