Antifungal spray for cabin air filter

[XPsionic]

Recirculate would probably help keep water out of the filter.
I just leave my car on fresh air intake all the time. Which probably explains why I have the musty smell.

nah, I leave mine on re-circ almost all the time and it also smells

 

[roocher]

I with Tesla service would come up with a permanent solution - this is so frustrating as it didn't happen with older (2017) models -----

 

[Level8Drummer]

And

I removed that scoop shaped duct in video 1 and it has made the stinky smell show up 90% less. I have not changed my filters since I initially started this thread. As per the videos the rest of what's necessary is up to Tesla programming not sucking in outside moist air in an attempt to dry the filters.

 

[reddogva99]

Doing an experiment here. I've got 20k miles on my 2022 m3p. The cabin filters and ac coils were stinky after about 6 months, and 12k miles. Not super impressed with the design and how the cabin filters get wet and nasty. So I am trying a solution to lengthen the cabin filter change interval.

I purchased some RMR-141 antifungal spray from slamazon. I removed the old air filters, sprayed the AC coils with some Kool it foaming cleaner. The tiny can lasted about 8 seconds and was empty. Barely enough to even clean the coils once. I ran the air for 15 min to let the AC coils dry out, then installed the new filters.

When the antifungal spray arrived a few days later I popped open the frunk, popped the first cover off over the HVAC fresh air intake. I turned the HVAC on, fan speed seven, ac off, recirculation off. The fresh air intake was pulling air nicely. I misted about 15 pumps of the antifungal spray into the intake. This should serve to deposit some of the spray into the cabin filters and the HVAC system. As the spray also serves as a fungistat/bacteriostat, it should help to prevent further fungal/bacterial growth in the cabin filter system and ac coils.

I took my wife out to dinner immediately after I sprayed the antifungal, and she nor I reported any chemical smells in the car. The spray actually doesn't have a smell, or if anything smells nice and clean.

I plan on refreshing the concentration of fungistat every month or so and see if any stickiness returns. I will update this post over time.

Level8drummer

This is the fix

Replacing cabin air filter and cleaning evaporator fins in 2021-2022 MS

So my 21 Plaid has of course the same issue. The smell goes away after about a minute. I removed the HEPA and it didn't smell to bad but soaked it with a vinegar/water mix and its now sitting in the sun. When it's dry, I'll spray some Lysol to get rid of the vinegar smell ha! Looks like I will...

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