I own a A4 B7 2.0Tdi and when leaving the close where I live there is a small speed hump. When driving over it earlier I heard a loud crack as if something had snapped! Nothing obvious to see under the car but the rear offside wheel is now sitting lower in to the arch. Looks like a suspension component has failed/snapped. Anybody have any ideas as to what it may be? Any common faults with the suspension known? Any help would be appreciated.