Hello you out there I have a question once, I used the Sufu but did not really find something that could have helped me further. As you know I have a Essi Bj 1996 with 90 Ps, and it is also known that the Essi likes to rust at the side skirts because I have the luck that my threshold still did not rust I wanted to know how I can get the threshold in this condition. Greet your North Berliner (grinz)