Hi,
I have question about the A/C temperature setting during the winter night time driving, and wondering could anyone share their tips to prevent the windscreen suddenly covered by fog while driving please. I was driving on M3 last night, it was okay originally when I drove in lower speed before went on the mortorway. However, my windscreen suddenly get covered by fog/ mist when drove in higher speed 70mph, it was a bit of panic and tried changing A/C setting to bring up temperature and switch to defog windscreen mode, but it just got worse and finally I had to open a gap of side windows to maintain windscreen visibility in very cold weather. :(
My normally set the A/C to 19 ~ 20 degree while driving (winter & summer), A/C is always on and wind speed turned to 2 bars or 3 bars level (medium). Recirculation was turned off, only use this during summer time when it is hot outside so cool air work efficiently inside the car.
Will there be different scenario when moisture is higher either inside the car or outside the car? Last night was pretty dry and not raining, so I think moisture inside the car was higher, but still couldn't figure our where I did wrong with the A/C setting. Can anyone help please? Thank you.
Cheers,
Luchia