Hi I winder if any one can help. I have an Audi A4 2.0 Litre Turbo Quattro Avant year 2007. Over the past year every time I accelerate the rev counter shoots up and the engine seems to struggle to reach the revs. Eventually it catches up. I have had it into the dealership here in Portugal four times over the past year. They tell me it is either this problem or that problem. A valve or something else. I have paid a fortune getting the problem fixed but the car continues to over rev. The guys at the dealership are scratching their collective heads now and it feels to me that they want to take my money off me just to fix a problem that probably doesn't need fixing. I have a slight communication problem because of the language ant the technical terms in Portuguese. Can any one shed any light on this for me ??

Thanks in advance

Brian