The air filtration system in a Subaru Outback is designed to enhance the air quality inside the car. Changing the filter not only improves air circulation through the vents and air conditioning but also ensures a healthier driving environment. It's advisable to replace the filter annually or every 7,500 miles (12,100 km). Below are the steps to swap out the filter, requiring only basic tools for the task.
Procedure

Detach the right dashboard panel adjacent to the glove box. Empty the contents of the glove box. Identify the dashboard panel on the right side of the glove box and carefully pull it out. Utilize a flat-head screwdriver to gently pry the panel away from the dash.

Remove the glove box. Release the stopper string attached to the glove box, located on the right side. Press the sides of the glove box inward to disengage the knock pins. Loosen the screws securing the knock pins by 1/4 of an inch using a Phillips screwdriver. Extract the pins afterward.

Release the glove box stops from the track grooves.
Gently exert pressure on each side of the glove box, one side at a time, to disengage the stops from the tracks. Allow the glove box to lower out of the way.

Detach the shelf for the owner's manual. Within the Subaru Outback and Legacy models, there exists a raised shelf inside the glove box specifically designed to hold the owner's manual. Locate this shelf positioned on the right side of the console. Utilize a Phillips screwdriver to unscrew the three screws securing it to the console. Then, remove the shelf.

Remove the bracket holding the filter housing. Using a Phillips screwdriver, loosen the three screws securing the filter housing bracket. Remove the bracket along with the insulation covering it.

Extract the old air filter. Apply pressure to the four clips located on the front of the filter housing tray. Slide out the tray and remove the old filter from it.

Install the new Subaru replacement air filter. Position the new filter within the tray. Ensure that the arrow indicating the direction of airflow, as specified on the new filter, is facing the correct orientation.

Return the tray to its place within the filter housing. Ensure that the tray clips are properly engaged.

Reattach the glove box. Connect the stops and track grooves assembly. Reinstall the side panel of the console and the screws for glove box installation. Raise the glove box and reinsert the knock pins. Replace the dashboard panel.
Useful Tips
Essential Tools
- New air filter
- Phillips screwdriver
- Flat-head screwdriver