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Updated 2026-07-02

Subaru WRX Cabin Air Filter: Change Interval

Compiled & reviewed by Nikolai Tsyrenov · Updated 2026-07-02

When to change the cabin air filter on a 2022-2025 (VB gen) Subaru WRX.

In short: Subaru WRX cabin air filter: ~12,000 mi / annually.
Cabin Air Filter interval~12,000 mi / annually
Model years2022-2025 (VB gen)
Why it matters: The cabin air filter cleans the air coming through your vents — it doesn't affect the engine. A clogged one causes weak airflow, musty smells and tired AC performance.

On most cars it sits behind the glovebox and takes 5–10 minutes to swap with no tools — one of the easiest DIY jobs there is. Filters run $10–25.

FAQ

How often should you change the cabin air filter in a Subaru WRX?
~12,000 mi / annually.
What happens if I never change the cabin air filter in my Subaru WRX?
Nothing mechanical breaks, but airflow drops, the AC works harder, windows fog up more easily and the cabin can smell musty — replace it annually if you drive on dusty roads.
Where can I check all Subaru WRX service intervals?
The full Subaru WRX maintenance schedule covers oil, tires, fluids, filters and major milestones for the 2022-2025 (VB gen) model years.

← Full Subaru WRX maintenance schedule

General guidance — confirm against your Subaru WRX owner's manual.

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