Since this cold weather, have the phenomenon that I get the message, stop immediately, cooling water level too low. Also true, but when I do the pressure compensation, i.e. open the lid of the balance tank, the stand rises again to maximum. My dealer told me to fill in a little bit about maximum, because the system is very receptive. Maybe someone has experienced the same thing? Is actually fine, but it is not really satisfying. In such a situation I really want a cooling water temperature indicator, if I imagine that someone has no idea and therefore calls the ADAC, no, there is an advertisement already helpful. Greetings Shaolin