2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums banner
1 - 11 of 11 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
Automotive lighting Motor vehicle Grille Hood Automotive tire

Hi all, I just purchased my 2019 Mazda 3 hatchback a couple weeks ago pre-owned.

I have noticed excess condensation on the back windshield (inside) and am quite concerned. I have never experienced this on any of my past cars and don’t see this on any other car on the block.

Is this a common issue for this car and any idea what may cause this? Has anyone found any solutions for this?

Thank you in advance.
 

·
Registered
Mazda 3 GT Hatchback,6 Speed MT
Joined
·
596 Posts
Hi all, I just purchased my 2019 Mazda 3 hatchback a couple weeks ago pre-owned.
I have noticed excess condensation on the back windshield (inside) and am quite concerned. I have never experienced this on any of my past cars and don’t see this on any other car on the block.
Is this a common issue for this car and any idea what may cause this? Has anyone found any solutions for this?
Thank you in advance.
when using your defrost and heat, use the fresh air source, not cabin air re circulation, fresh air source pulls dry air from outside, recirc will keep re circulating the moist air from snow and stuff inside the car, thats why defrost usually defaults to pulling in fresh air. I used to live in Vermont, ive dealt with this a lot growing up.
 

·
Registered
2013 Mazda 3 i Hatchback
Joined
·
461 Posts
The condensation inside the back glass could be from snow/water on the floor mats, but I'd expect to see condensation on the other windows as well. If you see condensation on all the windows, there's just too much moisture trapped in the car and you need to look for the source. If you have rubber floor mats that hold water from melted snow, try dumping snow/water on the mats out of the car before parking for the night. You might also want to feel the carpets in all the footwells to make sure there isn't a leak. A clogged sunroof drain can dump water down behind the interior trim where it will soak the carpeting.

If the condensation is only on the back glass, I'd suspect that the hatch seal is leaking. If it is leaking, you'll find dampness on the cargo carpeting or a puddle in the spare tire well.
 

·
Registered
Joined
·
5 Posts
I have got condensation on all the windows including the front. I thought it was better to use cabin air for defrost because the inside air is less humid. I will use fresh air when defrosting and I hope the results will be better.
 

·
Registered
Joined
·
34 Posts
Outside air position (indicator light
turned off)
Outside air is allowed to enter the
cabin. Use this mode for ventilation or
windshield defrosting.
WARNING
Do not use the position (indicator
light turns on) in cold or rainy
weather:
Using the position (indicator light
turns on) in cold or rainy weather is
dangerous as it will cause the windows
to fog up. Your vision will be
hampered, which could lead to a
serious accident.
Windshield defroster switch
Press the switch to defrost the
windshield and front door windows.
Refer to Windshield Defrosting and
Defogging on page 5-8.
 

·
Registered
Mazda 3 GT Hatchback,6 Speed MT
Joined
·
596 Posts
I have got condensation on all the windows including the front. I thought it was better to use cabin air for defrost because the inside air is less humid. I will use fresh air when defrosting and I hope the results will be better.
Re circulating the cabin air in the winter is typically much more humid than the outside dry winter air, this is because typically in winter conditions you bring in a lot of moisture through snow and such, this moisture doesnt evap as fast as it would in the summer,.
 
1 - 11 of 11 Posts
Top