Me again! Endless niggly problems... Anyway, Hope someone can make some suggestions, but when driving over bumps at low speed there is a knocking noise from the rear, it also occasionaly does it when going faster, but rarely. Had a garage look at it and they couldn't be definite, so got a mate (BMW technician - I know I know) to look and all seemed fairly solid around all the bushes (rollbar and wishbone) but he said there was a bit of movement at the top end of both dampers, near to where it joins to car frame. Is this normal for this smallish movement to happen or could this be the culprit? Thanks.