How to Change a Subaru Outback Cabin Air Filter

Co-authored by Chad Zani

Last Updated: February 24, 2023 References

The Subaru Outback air filtration system is designed to improve the quality of air in the cabin of the car. Replacing the filter will also allow the air from the vents and the A/C to move more freely throughout the vehicle. It's recommended that you change your air filter once a year, or every 7,500 miles (12,100 km). The following steps outline how to change the filter, and only a few simple tools are needed for the project.

Steps

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Remove all contents in the glove box. Locate the dashboard panel at the right side of the glove box and pull it out.^{[1]
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Chad Zani
Auto Detailing Expert

Expert Interview} Use a flat-head screwdriver to pry the panel from the dash.
Disconnect the stopper string of the glove box, which is found on the right side. Push in the sides of the glove box to release the knock pins. Unscrew the screws that hold in the knock pins 1/4 of an inch with a Phillips screwdriver. Remove the pins.^{[2]
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Carefully put pressure on both sides of the glove box, 1 side at a time, to loosen the stops from the tracks. Let the glove box drop out of the way.^{[3]
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In the Subaru Outback and Legacy models, there is a raised shelf in the glove box that holds the owner's manual. Locate the owner's manual shelf on the right side of the console. Use a Phillips screwdriver to unscrew the 3 screws attaching it to the console. Remove the shelf.
Unscrew the 3 screws on the filter housing bracket using a Phillips screwdriver. Remove the bracket. Remove the insulation on the bracket cover.
Apply pressure to the 4 clips on the front of the filter housing tray. Pull out the tray. Remove the old filter from the tray.^{[4]
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Place the new filter in the tray. Ensure that the arrow for filter direction that is indicated on the new filter is facing the right direction.^{[5]
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Make sure the tray clips are in place.
Reconnect the assembly of stops and track grooves. Reinstall the console side panel and the glove box installation screws. Lift the glove box up and replace the knock pins. Restore the dashboard panel.^{[6]
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Question

How often should you change a cabin filter? I had one put in six months ago and was recently told I need a new filter. Does this sound right? We don't do a lot of driving.

Dean V

Community Answer

Most manufacturers recommend cabin air filters be replaced every 15,000 - 30,000 miles, depending on driving conditions. If someone drives a lot in dusty conditions, they should replace more often.

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