Guys/Gals,
You can try this if you have not done your cabin heater bypass, don't have to do it every day hoh, I do it once a while when I get the smell. Open all the doors, turn on your air-con, turn the heater up to max and air speed to max, let it run for about 5 minutes and switch the air mode around so that the hot air goes thru all the ducts for a short period of time.