Cabin filter Tesla or OEM BMW

Same issue in my 2019 M3. Replace the cabin air filter. Solved.

Just picked up our second Model Y, had our first one for over a year and 20k+ miles and the only things it needed was tires (put new wheels and tires on), and cabin air filters change (took about 15 minute in my driveway).

A recent update fixed the issue with mine. I didn't smell it anymore for the last few weeks. I still had an appt with mobile service to replace my filters and they cleaned the evap core for free (paid for the filters) as well. Still no smell.

Replaced the filters myself (got them from the SC, $17 each, you need two). Still had the smell, took it in for other issues, and they comped the Kool it portion because I already changed the filters.