You know, I often wonder why guys like you just ask a mechanic or a dealer rather than here. Car repairs are specific to the year, make and model. It includes parts and labor costs, fees and taxes. The only way to find out is to ask. It is called getting as estimate. Since we do not know were you live on planet earth it sorts adds to the mystery. All you need to do is call and provide the information and if possible stop by the business and ask a mechanic to drive your car and see if you are correct in evaluating the problem or if it might something else. OK? It really is that simple. Best of luck. For Audi you get a double whammy. First the part and then the labor. Not cheap but it is not going to be $8,000. OK? Now, get cracking and make those phone calls. My 2001 Audi TT only has 73,000 miles but the clutch is still working very well. Cheers!