2015–2019 Subaru Outback Cabin Air Filter and Engine Air Filter

Which Subaru Outback model years does this cover?

These air filters specifications apply to every Subaru Outback built from 2015 through 2019 — the BS (5th generation), mid-size wagon/crossover. 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 2015–2019 Subaru Outback

• 2015Full redesign: all-new FB25, 3.6R moves to CVT, EyeSight driver-assist available for the first time on Outback
• 2018Facelift: revised front/rear styling, updated Starlink infotainment, standard EyeSight on most trims
• 2019Final year of this generation; last model year covered by the FB-engine oil-consumption settlement window

Where is the cabin air filter on a 2015–2019 Subaru Outback?

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

How often should the cabin air filter be replaced on a 2015–2019 Subaru Outback?

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.