Help

:banghead: My 2003 superb 1.9 TDI broke down 2weeks ago and the dealer said a nut had come adrift inside the engine and mashed it to a cost of £4000 (new short engine) Skoda UK say they will not help with cost as it is 6month out of warrenty surley a nut inside should not come loose or break???? even after 160,000miles.
Anyone know a bodie I can contact to complain too???