Okay basically i pulled away from set of traffic lights normally about 15-20mph gaining speed upto 30 not rapidly or anything. And heard a loud pop sound. Initially i thought it was one of the tyres so looked in the driver passenger wing mirrors and saw black smoke behind the car. The car then started juddering and had no power atall. The turbo no longer sounds like its spooling and i can hear a loud gushing sound when i push on the accelerator. The car will judder when i try to pull of and i need to change gear quickly to make it move. No lights on the dash etc. Now with my cars mileage 132k i know the turbo will probably go soon or maybe it may last. I dont rag the car around. But i do know that if the turbo goes the car will not judder just be really sluggish. This leads me to believe that the Car is over fueling causing the black smoke. Could this mean that the Boost hose after the turbo that leads to the Intercooler may have burst causing the car to not receive pressure causing it to judder. Where should i be looking first. Thanks people NOTE: i dont have VCDS and Audi is 30 miles away. Car isnt driveable to there.