its a 2.0 diesel, the milage is 42,250, the car is 4 years old, i drove the car again yesterday with no noise, but i have noticed that the clutch pedal vibrates a bit when i press it in about an inch, i dont know if thats normal or not.

i have no trouble when changing up and down through the gears, and there seems to be no lack of power, like i said the garage i took it too didn't do any checks, and that he could tell by the noise it was making.

it just seems strange that the noise as stopped, i'am no machanic, but i would of thought that if it was the flywheel, the noise would be there all the time, i also know that a replcement is very expensive. thanks for your reply peter.