So the story is after I the problems with poor starting when warm, excessive juddering etc I take my A3 to a VW/Audi specialist today to have diagnosed that the crank shaft is knackered. That is what has been causing the flywheels to break so quickly after being fitted and explains why its poor to start when hot etc. I honestly cant believe it. All that f~cking money wasted so far and its a knackered crank shaft. SO SO SO SO SO annoyed with it. Looking at at least £1500 to repair, inc new flywheel (No. 4), clutch, shaft, labour + vat. Speachless.