Yesterday, when I drove my girlfriend to work around 1 p.m., the car was still running quite normal. But on the way back, I noticed something strange: the brightness of the radio changed by itself between bright and dark lighting, in a rhythm that I usually only know, because when I turn off the headlights or the brightness of the radio adapts. At home, I first turned off the car in front of the front door and wanted to leave again later. But when I returned after about 1.5 hours, the car didn’t jump any more. A look at the dashboard showed me that the left turn signal flashed by itself, although I hadn’t activated it. I then looked at various forum entries and videos regarding the problem that the smart didn’t start. There, among other things, possible causes such as starter, alternator, cable breakage or cable shoe were discussed. However, these explanations did not take into account the additional problem of crazy electronics.https://youtu.be/Vr6ZJWDXi-8 Petrolter 698 cm3 37kW BJ 05/2003