I am not looking forward to suffering through another winter in my car. The heater is absolutely hopeless, the temperature takes forever to reach normal at the best of times but during the winter it is even worse. My journey to work is about 10 miles by dual carriageway and it is just beginning to get comfortable in the car by the time I arrive at work. When I first bought the car 8 years ago I took it to Mercedes because I could not believe it should be as bad as it is. They checked it out and told me "that is just the way they are, the best thing for you to do is to buy a hat and some gloves". Very witty indeed, but not exactly the thing you want to hear. Anyway I just wondered whether anyone else has experience of poor heating and if they have managed to improve matters somehow. The fact that it has some kind of an additional heating unit fitted that operates in low temperatures makes me think that it must be a design fault. This additional heater never seemed to work to me anyway so it is permanently switched off.