I have an 09 G37 sedan and I have been noticing the windows are fogging up quickly...mostly the front windshield and rear window. When I turn on the defroster, the windows are clear again. It's about 50 degrees here.

Is anyone else experiencing the same problem? I notice other cars in my area don't have windows that fog as easily. My neighbor's car is an older Hyundai, Prius, Accord and BMW. None of them fog up like my car when I park it outside the street.

I wonder if the windows seals needs to be checked?

Any input is greatly appreciated.

Thanks

 

clean both sides of the glass.

 

Yes, clean both sides of the window.

I've also seen these anti-fog liquid products that you apply to your windshield, much like rain-x. I think these can be found at your local auto parts store or walmart.

It is annoying when my windshield fogs up tho, plus the decreased visibilty danger.

 

If you leave the AC on all the time it'll prevent the windows from fogging up; that's what I always do.

 

if there's anything on the truck that's wet, it'll create "humidity" in the cabin...

i spilled a gallon of water in my trunk & my windows fogged up alot until it completely dried out

 

Make sure your system is not in "recirculate" mode.

 

As mentioned above, the AC helps this big time. Problem is that if you turn off the car with the AC, it will get humid and next time you have the problem all over again.
try to get into the habit of turning off AC about 5 min from your destination. tough to remember but it helps to dry out the AC system and make the next run less humid.

 

I do tend to use the recirculate mode a lot. I also don't have anything wet in the trunk.

Will use the ac more to clear the windows. It's just annoying how my old 2002 sentra didn't fog up as easily. Parked or when being driven. I may consider getting some anti-fog products. Thanks for all the suggestions!

 

I don't run my AC in the cold weather, but have no fogging problems except for when first starting out in very cold temps. Short use of defogger(s) takes care of it. Wife's M-B C280 windows fog up a lot, she has to run AC all the time.

 

Mine did this all the time until I discovered I had a leak and that there was water under the rear left passenger carpet. Went away when i had the carpet replaced. Now they never fog.