The engine air filter is located in a rectangular plastic box on the passenger side of the engine bay, while the cabin air filter sits behind the glove box inside the cabin.
Engine air filter location
The engine air filter for a 2015 Honda Civic is housed in a rectangular plastic box at the front of the engine bay on the passenger side. A large intake tube runs from the grille area into this box, feeding air to the throttle body. The box is secured with clips or screws that you’ll need to release to access the filter.
How to locate and replace
Follow these steps to locate and replace the engine air filter:
- Pop the hood and locate the rectangular air intake box on the passenger side near the front of the engine bay.
- Unclip or remove the screws holding the lid, then lift the lid off the box.
- Take out the old filter element and inspect the inside of the housing for debris.
- Insert the new filter with the correct orientation (the arrow on the filter should point toward the throttle body).
- Replace the lid and secure the clips or screws. Reconnect any hoses you detached.
Regularly replacing the engine air filter helps maintain fuel efficiency and engine performance. The typical replacement interval is roughly 15,000–30,000 miles, depending on driving conditions and manual guidance.
Cabin air filter location
The cabin air filter for a 2015 Honda Civic is located behind the glove box, inside the passenger side of the dashboard. Access usually requires lowering the glove box and removing a panel or cover to reach the filter housing.
How to access and replace cabin filter
Use these steps to access and replace the cabin air filter:
- Open the glove box and remove its contents. If present, detach the glove box damper or press in on the sides to release it and let the box drop down.
- Look for the cabin air filter access panel at the back of the glove box area and remove the panel to reveal the filter.
- Slide out the old filter, noting the airflow direction on the filter frame.
- Insert the new filter with arrows pointing toward the blower motor, then reattach the access panel.
- Lift the glove box back into place and secure the damper/stops.
Cabin air filters typically need replacement every 15,000–25,000 miles or annually, especially in dusty environments. Always refer to the owner's manual for the exact interval recommended for your vehicle.
What to know to avoid mistakes
Tips to ensure a proper fit: verify the correct filter type and size for your exact Civic model, orient the filters with the arrows toward airflow, and reseal the housings fully to prevent unfiltered air leaks. If the housing feels cracked or the clips won’t secure, replace the housing or clips before reinstalling the filter.
Summary
In a 2015 Honda Civic, the engine air filter sits in a rectangular box on the passenger side of the engine bay, while the cabin air filter sits behind the glove box. Accessing and replacing each filter requires simple steps: remove the lid of the engine air box or drop the glove box to reach the cabin filter, insert the new filter with the correct airflow orientation, and secure everything back in place. Regular replacement helps maintain engine efficiency and cabin air quality.