My 2015 C350e recently bought from a dealer keeps on flashing up an orange malfunction message in the central section of the instrument cluster. It has the word "malfunction" and a symbol or two gearwheels - see picture. It lasts from a few seconds to a minute or two when I am driving. The SatNav, radio etc. still work, and the speed sign detector displays the speed limit over it. No working in function eco and comfort! I was From Mercedes Heathrow but they tell my need 3 day from check!!