Hi all, I've had yet another fault with my S3 this week, I think I'm on 8 now. I've had this one before and they fixed it (well might not have done now I have it again). I turned my engine on. There was immediately a loud grinding noise coming from the engine for about 2 seconds, then this error came up on the screen: "Automatic start/stop: system fault! Function unavailable." However, the system does sometimes work again when I turn the engine off and on again. Has anyone else had this problem? Last time I had this the dealer told me that the crank shaft sensor was broken and the car automatically shuts down other "non-essential" features of the car.