I've got this problem with my A3 (02 plate1.9TDI 130bhp). When I start the car from cold the engine cranks and starts normally. If I then drive it for a while and then engine gets to the normal working temp. - when I stop the engine and try to start it againit won't start. The engine cranks overbut just will not fire. If I then leave the car until it's cold again the engine starts fine without an issue. Has anybody seen this before I take it to the stealership!