Hello, I am writing in english because I am not German. Just wanted to thank people in this thread, the posts helped with my troubleshooting of B258E-00 right low beam control circuit fault. I ended up getting a used headlight from Poland, same part number as my original 2016 39023763. I reused my old headlight modules, they worked just fine on the new headlamp. My main headlight module was programmed already in 2023 when the dealer replaced my left headlight for free when some error was visible during my test drive of the car. Now just have to hope the replaced headlight will last some time.