Hi, I was out the other night and when I returned to my parked car (2008 a5) I noticed certain features were not working as they were before I parked up. For example, the parking sensors work but now do not pop up on the screen as they used to. As well as the parking sensors, I can no longer check my oil level through the cars system. Has anyone else had these kind of issues before? And if so, was there an easy fix?