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startergenerator 48v

[font][font]I'm still struggling with this starter generator malfunctioning. I've attached the description from ISTA. If you see any clues in the pictures, please share them with me. If you have any other ideas what I should check in ISTA, please let me know. Thanks! After clearing the error, it doesn't immediately reappear. I went for a test drive and the start-stop system works fine, and the electric start worked fine a couple of times, but when I got home and wanted to start it again, it didn't work. The error appeared again. The start-stop system works fine in traffic, but when I stop the car with the power button, it can't restart the first time. The car automatically tries again and can start on the second try. If I lock the car with the key, it can always start the first time. Also the first start of the day when the engine is cold always works perfectly, so the regular starter is fine.[/font][/font][img]https://www.bimmerfest.com/cdn-cgi/image/format=auto,onerror=redirect,width=1920,height=1920,fit=scale-down/https://www.bimmerfest.com/attachments/img_0863-png.1129214/[/img][img]https://www.bimmerfest.com/cdn-cgi/image/format=auto,onerror=redirect,width=1920,height=1920,fit=scale-down/https://www.bimmerfest.com/attachments/img_0864-png.1129215/[/img][img]https://www.bimmerfest.com/cdn-cgi/image/format=auto,onerror=redirect,width=1920,height=1920,fit=scale-down/https://www.bimmerfest.com/attachments/img_0865-png.1129216/[/img]