The windshield is frozen in the morning, you scratch it clean, drive a few meters and then this thin layer of ice is on it again and the view is suddenly at zero. This is usually the case with fog or high humidity. The heating power is not enough after such a short time to thaw the disc, the windscreen wiper water freezes immediately despite frost protection (-30) and heated wiper water nozzles. you can get this problem under control? Greetings Juergen