Posted a thread a few weeks ago that I was having power problems with the car. It was as if someone had turned off the turbo. There was no warning lights. Tried to get the car looked at by the local Audi specialist, but he could not arrange a courtesy car. The problem turned into a mis-fire last Saturday, they advised not to drive the car as petrol may get into the cat and kill it. I had a journey I had to make last Sunday and I read on this forum that mis-fires can be caused by a coil pack failure, so last Saturday, I took myself down to the stealers on my push bike and £22 lighter I came away the proud owner of a new coil pack. Traced the mis-fire to the No 4 cylinder. Took the car for a test drive, no mis-fire and no power, but the EMU warning light had come on. Called the specialist today, still no courtesy car, mentioned to the tech that I had cured the mis-fire out of necessity, but the EMU warning light had now appeared. He told me that the EMU was now showing the coil pack fault and needed to be re-set, this he would do once they had sorted a courtesy car and he would look at the turbo problem the same time. That reminded me of another thread I had read on this forum. I disconnected the battery for 20 minutes, re-connected it to re-set the EMU and guess what, the car does not have the turbo problem anymore. It goes like a train all 250BHP and 289lbs/ft torque. Welcome back old friend! Thank god for this forum and the technician, I will probably bung him £20 for his advice, between the two, been saved a fortune. Hope this helps anyone else suffering from similar problems.