You can check the belt, and other belts yourself. Just get under the hood, and visually inspect them. At the amount of miles your at you might as well get it done, but if you want to hold out you can. When inspecting them just check for any cracks, freyed ends and what not. Pull on it and hceck the tensin make sure its not too loose. As for price, I'm not exactly sure off head I can ask my friend later and find out what his shop would charge, DEFF would stay away from Audi for that job, if you know a firend at a shop that'll be just fine. Good luck. keough