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condensation on windshield

4K views 10 replies 10 participants last post by  SerbBMW 
#1 ·
Now with colder weather, I've noticed major condensation on the inside of my windshield after my car would sit outside for 7-8 hours. It's mostly on front windshield, with some one the back and side windows.

I looked at other cars at my work parking and none of them have this problem.

Anyone can provide any insight? I am afraid that when it gets really cold, I'll have to scrape ice from inside :cry:

If I keep my car in the garage, no problems.
 
#3 ·
Hmm, I noticed this too. On the inside of the windshield and in the back window too. I also noticed that I get a slightly wet carpet near the doors when it rains heavily, and when I drive through a puddle (but nothing too deep, just a slightly larger puddle). Could be the window vapor barriers, because I know those window regulators were fixed, so it's possible they are torn... in my case.
 
#4 ·
yeah this happened to me, but it's because i accidentally held down the unlock button when fumbling with my umbrella on the way into work on day and came out to find my windows down at the end of a rain filled day...

I left the sunroof cracked on a sunny day and pulled the mats up on the seats to let the carpet dry and it helped a lot. no condensation this morning.
 
#7 ·
I used Rain-X anti-fog for interior windows...gone.
 
#8 ·
It's water as other have stated. In my wife's car, after she had some paint work on the rear quarter, she had the same problem. The bodyshop had taken of the rear light and did not put it back on properly. Water would get into the trunk through the light. Check the bottom of the spare tire. That where we found the water.
 
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