ronin
Posts: 18
Joined: Sat Oct 28, 2017 3:53 pm

Vinegar smell from HVAC

Mon Aug 03, 2020 1:58 pm

With everything going on my car has been sitting in an underground garage (73 ambient) and connected to a level 2 charger. I noticed a faint vinegar smell on “cold start” with no preconditioning the other day and was wondering what’s going on. It only lasts a few seconds and then dissipates. When running outside in the 80s / 90s for a couple hours the A/C fan does kick on while charging in the garage.

Any ideas what's going on?

flyboy320
Posts: 33
Joined: Sat Jun 02, 2018 5:38 pm

Re: Vinegar smell from HVAC

Tue Aug 04, 2020 8:06 am

Could just be mold/mildew from A/C system. Easy fix, just spray something like Lysol in cabin air intake, usually clears it up. My cars will do this sometimes and to try and prevent it I will sometimes (when I remember) turn off the a/c a minute or two before I get home so the system can dry out before you shut the car off.

https://www.youtube.com/watch?v=3uAjkr_SuME

TOEd
Posts: 124
Joined: Sat Mar 05, 2016 5:15 am
Location: Toronto Ontario Canada

Re: Vinegar smell from HVAC

Tue Aug 04, 2020 8:14 am

Have you checked cabin air filter? It may need to be replaced.

ronin
Posts: 18
Joined: Sat Oct 28, 2017 3:53 pm

Re: Vinegar smell from HVAC

Tue Aug 04, 2020 10:02 pm

Yeah this is the first time I have noticed it in any car. The cabin filter is probably almost 2 years old. I'll look into the other. Thank you!

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