Subaru Forester Cabin Air Filter and Engine Air Filter

Each row links to the full specification for that generation, including trim-by-trim breakdowns and the part numbers. Where engines within a generation differ, that page separates them.

The air filters on a Subaru Forester is set by its generation, not its model year, so each generation has one page carrying the complete figures, part numbers and fitment notes for every year it covers.

Where is the cabin air filter on a Subaru Forester?

Behind the glovebox; drop the glovebox door, 5-minute DIY.

How often should the cabin air filter be replaced on a Subaru Forester?

Every 15,000–30,000 mi (more often in dusty conditions). Sooner if you drive in heavy traffic, on dirt roads, or through wildfire smoke, a clogged filter shows up first as weak airflow and a foggy windshield that will not clear.