On my 87 300 TDT, the windscreen fogs up when i start the car.

this is more pronounced in the middle of the day, say after the car has been driven, then sat for a period, then started again. the fog is easy to clear, but i am worried that in the very cold weather we get here that it will be more of a problem because it may turn the frost. if i have the whole family in the car the fog is pretty extreme and almost immediate upon startup. it seems to me that there is a lot of moist air being trapped in the climate control unit and as soon as you start the vehicle this moist air is immediately released and fogs the windscreen.

i usually leave the thumb wheel between 22-24 and the selector button on the double-white arrows. i have tried using the EC setting to see if this makes the issue go away but it does not seem to help, if anything it is worse.

i know that a small amount of fogging could be seen as normal, especially with a lot of people in the car, but i don't think this is how the ACC system is suposed to work, fogging the windows immediately at startup.

any thoughts on what might be going on?

__________________
________________

punkinfair