start with frunk open and power down your tesla.
remove the middle frunk panel (just pops out)
disconnect 12 volt lithium. Many YT videos on this.
with the 12v loose you can drop it down enough to get the housing off then then the filter.
loosen and don’t drop the 3 10mm bolts that hold it on.
The housing and filter behind the 12volt lithium have clips in them that are kinda self explanatory.
Feel free to PM me or even call. 405-532-0080 I will be happy to help.
I don’t believe tesla has a fix for this, unfortunate because it’s definitely the huge watersoaker front heapafilter Thats made out of recycled dog and horse hair.
This will explain why you get the smell really bad when it’s humid or rainy.