Before you comment, read below to see what I've done and why most answers are not helping me. Also, my native language is not English, so I apologise for not using the proper words.
I have an old Volkswagen Polo (2006) that has heavy condensation on the front window inside the car during autumn and winter. It’s that heavy that when the temperature drops below 0, the condensation will freeze and the inside of my front window will be frozen, making it difficult for me to start in the morning since I lose a lot of time.
Reminder that I have no option to use a garage. I have no issue if I can park my car in the garage, but this is just not an option at the moment.
Things I've tried, but didn't produce any results:
- Checking if my air conditioning works: it works perfectly. A few days ago I deliberately had my windscreen fogged at a very low temperature. As soon as I turned on the air conditioning at a low temperature, the problem was solved. This indicates that my A/C is working and it should be drying the interior air.
- Water in the car: checked the most frequent places (such as the mats on the driver's & passenger's side at the front and rear; in the back of the trunk; ...). No wetness whatsoever. Also no problem that water gets in through the doors.
- Moisture absorbers: these do work (you see a discoloration), but the problem of condensation persists. Assuming that there is an ongoing problem.
- Leave air conditioning on to get the cabin as dry as possible: no effect. I have no issues during driving (see point 1), but as soon as I've been parked outside for a long time (say 12 hours at least), there's another severe form of condensation on the inside of my windscreen. It's not damp like other cars, but a form of water.
- Clean the front window: tried this. Seems to work a little bit but not much and not for long.
It looks like I'm out of options. There might be humid air coming in, but I assume since air comes out, it can also go out and that would solve the condensation issue. I've tried to leave the window open a crack, and this resulted in no condensation, assuming that proper air flow does work, although not an option when it's raining or snowing.
The car interior is also "quite" hot for this time of the year.
How could I possibly fix this?