Hi guys im new to the forum but have been viewing and reading this forum for a while now for some excellent advice, anyways im having a really frustrating problem with my mrs 2006 is220d, when i go over dips and humps on the right wheel theres a knocking sound, now i thought it could have been the top mount so i replaced that but that didn't solve anything, so i thought il replace the anti-roll bar bush and drop links to see if that could be the problem but again no difference what so ever. When i try to bounce the car up and down while the car is stand still theres no noise, theres no play in the wheel or anywhere else, visually i can't see anything wrong underneath, this is driving me nuts as i haven't got a clue what else it could be!
If someone can please shine some light to my problem i'd appreciate it!