Anyone replaced the interior air filter themself yet? How big a deal was it and how long did it take? Also what mileage did you do it at and how dirty was the original filter?

 

you talking about the ac filter right? behind the glovebox, i think its supposed to be done at like 30k, not really sure though

 

First, you should change them with repect to your weather conditions,driving etc....I have allergies, so I change mine every 15K miles. My dealership does it and doesn't take long. Jens has it on the FAQ I believe. I don't want to mess with my glove box.
Cost: I believe around 75.00 dollars parts and labor. There are actually 3 filters correct Jens ? Don't go by the manual, change them as often as you need !