okay i have a 2010 c300 sport has been running great for about 15k miles of driving it but then noticed small little things in the system when my car is low on gas the gauge is inaccurate but on when its down to 1/4 it does this second my tachometer sometimes not always will begin to shake slightly even if I'm on cruise third is keep getting a message about my license light being out although ive checked it and it works perfectly fine fourth the dial to my radio/media interface no longer works when turning there is nothing major wrong with the car it still drives like it is brand new its just small little mishaps within the electrical system please help me