Can anyone give me some advice my wife owns a mk6 1.6 tdi 2010 totally standard ,failed the mot on a front coil spring should be easy Job but they made a right **** of it and the car was never the same afterwards felt like there was knocking noise from the suspension area ,so last month I bit the bullet and replaced basically the lot the front shock absorbers the springs the suspension mount the drop link arms and even wheel bearings ,but she says when she goes over the speed bumps the car now catches the bump such as the engine under tray but this never happened before as it’s standard motor it’s not lowered or anything .the tray underneath is all in place I just can’t see why this would happen any ideas thanks