2014–2018 Subaru Forester Cabin Air Filter and Engine Air Filter

Which Subaru Forester model years does this cover?

These air filters specifications apply to every Subaru Forester built from 2014 through 2018 — the SJ (4th generation), compact crossover suv. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2014–2018 Subaru Forester

• 2014Full redesign: all-new SGP-adjacent platform, FA20DIT turbo replaces the EJ25 turbo and moves to the CVT, first EyeSight availability on Forester
• 2015Standard rearview camera added across all trims; 18-in wheels become available on the 2.5i
• 2016New touchscreen-based infotainment interface across the lineup, with a standard 6.2-in touchscreen on the base 2.5i trim
• 2017Facelift: revised front/rear styling, updated infotainment, LED headlight option on Touring
• 2018Final year of this generation

Where is the cabin air filter on a 2014–2018 Subaru Forester?

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

How often should the cabin air filter be replaced on a 2014–2018 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.