Originally posted by Bicycle019:
How would replacing the cabin air filter help? I've never replaced it and we've had lots of airborne stuff here in CO this year- pollen and ash. 
The cabin air filter is replaced by first removing the black cowl panel located under the passanger side wiper. Pop off the trim caps and remove the two screws. Then open the hood and remove 3 more screws. You can now remove the cowl along with the rubber seal clipped onto it. Once this is done you can access the filter.
