I've had two mkII leons and I must say I have never had a problem. I know a number of people have reported rattle issues and there are a couple of simple fixes on here iirc requiring little more than duct tape and earwax. Do a search and you should be able to turn something up.
sorry mate do a search for what i got a rattle when i put the clutch in in nuetral? any sujestions really annoying.
hi all just want to know if you to have trouble with build quality the dash has been out of my 56 plate 1.9 tdi twice by dealer cos it rattled like mad carnt stand it! in fact the whole car seems to be falling to bits at 19k is it the 1.9 tractor engine vibrating it to bits rest of car seems ok

Probaly clutch release bearing......as can occur to any manual car


car got new clutch release bearing fitted, clutch, dual mass flywheel from the dealer. luckully was covered under the man warranty. went to pick car up after all this was done and being told that it had been test driven and noise had stopped.
when went to pick car up still makeing noise so told them to strip it check it again.....
phoned yesterday to say a new ENGINE
BUT ALL WAS GOOD CAUSE THERE DOING IT UNDER WARRANTY?!?!?!?!![]()
, I would be going 

.Good luck, It will never be the same again with a new engine. Personally I wouldn't be going, I would be going
.
The grease monkeys at seat dealers will probaly fook it right up, damage the paintwork on the wings, chuck your bonnet around the workshop floor for 2 weeks, and leave half of the bolts/clips/pipes/and wires loose.
I would be asking for a replacement car what with the dash being ripped out twice and fitted back in with a hammer and nails.....
was because it has been annoying me and what with the car being so close to man warranty being up im just happy to be getting that. they did try to pan me of with " i think thats a standard sound" but then after alot of badgering they came round in the end. if i had of left with the car and continued driving it my mechanic said the list of repairse could have been endless.....