Hey everyone,

I've got a 2011 Mazda 3i Touring sedan and whenever I turn the AC on I get a foul odor that smells kind of like dog poop. I was wondering if anyone knows of a cause for this and if there is any way to fix it.

Thanks!!

 

sounds like mold or something similar growing on the heater core / AC core. I don't know of any products, but an auto parts or detailing shop should be able to help.
Goo Luck