Recently purchased myself a 2008 audi s3 Quattro 2.0t, within the month of buying I've been back to the dealership twice to firstly get the radio signal sorted and then a week or so after I had to go back to get a new flywheel and clutch kit! After getting the flywheel and clutch I now have a loud knocking sound when holding the clutch on the biting point and it definitely wasn't there previously! Does anyone have a clue what this could be? The car has only done 50k aswell!