Hi, as the title states this is my problem. I own a 2.0 TDI A3 sept 2004 sportback. Just to clarify the work done so far, Audi have fitted a new cam belt, water pump and turbo. I have also fitted a new DMF/clutch, aux drive belt and tensioner and given the car a full service, all filters and all fluids. I have also just fitted a new EGR valve. Car is showing to codes and Audi can not find a problem. When the engine is cold the judder is small but once the engine is warm or If I put the car under some load the judder is worse. Is there anything I'm missing ?????? Any help or suggestions will be appreciated.