Hello,
I am messaging you to find out if you ever figured out your cars problem with the A/C smelling bad?
Reason I am asking, is because I recently bought a 2014 370z and am experiencing similar symptoms of a horrible bad smell when using my A/C or air ventilation system. I have been to the dealer multiple times and have been looking all over the internet if anyone has a solution to this problem.

My car's symptoms consist of multiple signs. A horrible smell will come from the vents either after the use of A/C or during the use of A/C after the car has been off for a while. Also after I turn the A/C off and use the regular air ventilation, moisture will began coming out of my vents and you can actually see and feel the moisture sticking to the vents.

If you can offer any help on this problem please let me know.

Thank you so much for your time.