On my Fox (Cab Fox) 1.2 with air conditioning the following problem occurs: Air conditioning (climatics) switched off: Either I set the temperature regulator to completely cold (that is to say turned to the left) then cold air comes out of the ventilation! If I turn the switch only by one millimeter in the direction of warm, hot air comes out of the ventilation! In between there is nothing, it is only asscold or boiling hot! The same applies with the air conditioning turned on. I only noticed the problem now, since the controller was always cold in the summer and the car is only used as a second car anyway! We have the Fox since March 2007. km stood about 9000 km There may be only one mechanical problem, i.e. the controller defective. Someone has already noticed something like this???