Hello all, need some help and advice please. My A4 2.0 60 reg has had the emissions update for the EA 189 engine at our usual Audi dealer. A very long story short, after driving the car home and it was fine, the next time I used it, it drove like a tank. The judder from the engine was terrible and you had to press really hard on the accelorator to get any response from engine, then you change gear and the judder starts again and so on until the engine is warm and then the engine is absolute