 I bought my Audi S4 brand new November 2011.In December 2011,the radiator broke down, after a argument , the dealer agreed to replace the coolant with no charge.Today,march 3, the FM radio broke.There is nothing display on the screen and there is no sound.Yesterday, the screen went blank for about 20 minutes.Then after we turned off the engine, about 1 hour later, when we turned on the engine back, the FM came back to normal.Today we try the same thing but it doesn't work.I am really start to hate this car.I will keep posting everything that will go wrong with my car.