For some time now I have been fighting with foggy windows when it’s cold and humid outside. At temperatures just above 0, the defroster function of the automatic climate control usually doesn’t start any more. I noticed then that with full flow from the front and lower nozzles comes strong air, but on the windscreen only a lukewarm air. I don’t know if this has always been like this and I’ve never noticed. The climate has no faults in the memory, so all Stellmoto humidity in the footroom is also not and the pollen filter is clean and dry. The heat exchanger is also dry. The processes in the spray wall are also free. How much air do you get from above?