steamed

Hi, I hope someone can help with this. I've just got a 2006 C220 cdi estate - which I am loving apart from a recurring problem with steamed up windows. Constantly is probably over egging it a bit, it's mainly but not always in damp weather. I use the windscreen blower which clears around 50%...

Well i've seen a few threads regarding steamed up windscreens but this morning my front screen was soaking, and i mean soaking. The car is bone dry inside and have lifted all the carpets including the boot and that is bone dry too. I leave the heater control set to side vents and shut them off...

I have a 2001 C180 Coupe (w203 I believe) When I leave my car for a few hours in the cold with all windows closed etc, the front windscreen gets extremely steamed up and foggy. Its impossible to see out of unless I wipe with a towel. When I have been driving for a while the de-mister keeps...