rough idle

My 2001 TDI75 is pretty unhappy at idle. The engine is vibrating a lot and sounds very agricultural, but everything is perfectly normal as soon as the clutch is depressed. There's also a bit of knocking when the car is in motion with a trailing throttle. Having looked through the forum, these...

Hello everyone,i`m new to this forum and would appreciate any feedback on my intermittent spluttering and hunting of my starts .Engine starts instantly and perfectly every time . Seems to idle perfectly too but it then suddenly becomes rough and splutters to the point it might cut out . Then...