Hello guys, today at the AU& TÜV the rear cooler hose burst and there came a rust red and rust-smelling liquid from the container where the cooling water boiled. Now I have to make the hose new and need some instructions. Does someone happen to have one or know a useful one? But the after 10 KM you always have to refill water…. Is there anything useful or just enough with destilized Sweeping water?