How to Replace Subaru’s Cabin and Engine Air Filters

Replacing the cabin and engine air filters in your Subaru is an essential maintenance task that helps ensure optimal performance and air quality inside your vehicle. Regular replacement can improve fuel efficiency, protect your engine, and keep the air inside your car fresh. This guide will walk you through the steps to replace both filters safely and effectively.

Tools and Materials Needed

  • New cabin air filter
  • New engine air filter
  • Screwdriver (Phillips or flat-head, depending on your model)
  • Gloves (optional)
  • Clean cloth or rag

Replacing the Cabin Air Filter

Start by locating the cabin air filter. In most Subaru models, it is behind the glove compartment or under the dashboard. Consult your vehicle’s owner’s manual for the exact location.

Open the glove compartment and remove any contents. If necessary, detach the glove box by releasing the clips or screws holding it in place.

Locate the filter cover, usually a plastic panel that can be removed by pressing tabs or unscrewing screws. Carefully remove the cover.

Pull out the old cabin air filter. Take note of how it is oriented, so you can install the new one correctly.

Insert the new filter, making sure it matches the airflow direction indicated on the filter. Replace the cover and reassemble the glove box if you removed it.

Replacing the Engine Air Filter

The engine air filter is typically located in a plastic box near the engine, often on the side or top of the engine bay. Consult your manual for the exact location.

Open the air filter housing by releasing clips or removing screws. Carefully lift the cover.

Remove the old engine air filter and inspect it. If it is dirty or clogged, replace it with a new filter, ensuring it is oriented correctly.

Reattach the cover securely, making sure all clips or screws are fastened tightly to prevent unfiltered air from entering the engine.

Final Checks and Tips

After replacing both filters, start your vehicle and listen for any unusual sounds. Check that all covers and panels are securely reinstalled.

It is recommended to replace your cabin and engine air filters every 12,000 to 15,000 miles, or more frequently if you drive in dusty or polluted environments.

Proper maintenance of these filters ensures a healthier cabin environment and helps keep your Subaru running smoothly.