ok so I don't have a ulysse but it is a synergie so the same, basically it was driving perfect the other day no wierd noises or anything, when i come to change gear I pressed the clutch and it just stayed down, I pulled it up by hand and it was rock hard, when I got it home I checked the slave cylinder and i was already extended as if the clutch is pressed but it isn't as it doesnt go in gear, a mechanic said the dmf could have failed, is that usual? also when the engine is off it will go in every gear apart from 1st, any ideas please???