Hello Community, my i20 has been having problems for a few weeks. i20 EZ 5/14 1.2 Ltr, 86 PS BJ 2014 Fifa World Cup Edition 62,000 km The problem only occurs in foggy or rainy weather. The onboard voltage falls when the main beam is switched on to such a point that the onboard voltage collapses completely for a short time. As a result, I also have to adjust the radio etc. Curiously, this happens only every few times when switching on. If after a jerker the main beam again increases I also notice that the dipped-beam is getting darker when I step on the brake. But this is also only the case once in a while. Repeated braking is easy. I first thought that the battery is gone, but it is only 3 months old. I was with the friendly one today, who of course did not find anything. He said that he checked all the ground connections and greased them again and fixed them again. It was probably only a cable going on, which a He said that we could exchange the LiMa on suspicion, but that costs of course. Now, of course, I’m still wondering what that can be? I guess it’s related to the light, because somehow I rule out a mass error. I’m afraid that the car has now become an economic total damage. Such a search for errors will go right into the money. I still have a guarantee, but it will soon expire. any ideas on what this could be? Thank you in advance for the help VG Chris