dodge guy wrote:
My TT gets that slight urine smell when it is very humid out. I really noticed it after I cleaned the carpet one summer. the trailer reeked of the Urine smell. we are the original owners and it has never had a cat in it. the smell comes from the material in the carpet. when it gets damp/humid the carpet gives off an odor until the dampness goes away. try a dehumidifier in it for a day or 2. I`ll bet the smell goes away!
A similar thing happens to one of my cars. Get in it on a humid day and there's this weird faint smell. After turning on the AC for a few minutes, the smell has magically disappeared. On any other dry day there's absolutely no smell. Smells just like a normal clean car. I eventually came to the conclusion that the humidity in the air must be reacting with the fabrics in the car.