Car turns off at idle and all car settings reset
 

I have a 98 c230 4 cylinder. recently, at a stop light the car shut off, my radio and clock settings reset. The windows and mirror switches on center console stopped working. From reading forums it sounded like it was an OVP relay that had gone bad, however, when I contacted the dealer I was told my car did not have an OVP relay. Can anyone point me in the right direction on this. I need to get this car running asap.

I should also add that the controls in the center console no longer work. Windows, mirrors, or trunk.

Windows will roll down with key fob and rear windows work with rear buttons.