The engine air filter sits inside a rectangular plastic air-box in the engine bay, with the intake hose running from the front grille into the box; the cabin air filter is located behind the glove box on the passenger side. This guide covers both locations and how to access and replace them across common Civic models.
Engine air filter location
Use these steps to locate and replace the engine air filter in a typical Honda Civic.
- Park on level ground, turn off the engine, and open the hood. Locate the large black rectangular air intake box in the engine bay, connected to a plastic duct that leads toward the front of the car.
- Check how the lid is secured. It may use plastic clips, metal clips, or screws—release whichever fasteners hold the lid in place.
- Lifting or rotating the lid will reveal the engine air filter element inside the box. Note the orientation of the filter so you install the new one the same way.
- Carefully remove the old filter and inspect the box for debris or small objects; wipe out any dust if needed.
- Insert a new filter, making sure the airflow arrows on the filter point toward the engine (the direction of airflow). Ensure the filter sits flat and fully within the housing.
- Reattach the lid and secure all fasteners. Reconnect any hoses or ducts that were detached.
- Close the hood and start the engine to confirm everything is sealing properly and running smoothly.
Replacing the engine air filter is a quick, DIY-friendly task that can help maintain acceleration, fuel economy, and overall engine performance.
Cabin air filter location
To replace the cabin air filter, follow these steps tailored to the Civic’s interior filtration system.
- With the passenger-side glove box, locate the cabin air filter housing just behind or above it. In many Civics, you’ll need to lower the glove box by removing or loosening its limiting arm or stops.
- Remove any screws, pins, or stops holding the glove box in place and carefully lower the door to expose the filter housing.
- Open the cabin filter housing cover; remove the old filter element and inspect the housing for dust or debris.
- Insert a new cabin air filter with the arrows indicating airflow pointing toward the blower motor (into the cabin). Make sure it sits evenly in the housing.
- Reassemble the housing, reattach the glove box, and restore any stops or dampers you removed.
- Close the glove box and run the HVAC system briefly to confirm proper airflow and a good seal around the housing.
Regular cabin air filter replacement improves interior air quality and HVAC efficiency, especially in dusty or polluted environments.
Choosing the right filter and maintenance tips
Most Civics use standard aftermarket or OEM engine and cabin filters sized for the model year. Always check your owner’s manual or confirm part numbers with a parts supplier if you’re unsure. As a general rule, inspect the filters during routine maintenance and replace sooner in dusty or high-traffic areas. After replacement, reset any maintenance indicators if your vehicle has them.
Summary
In a Honda Civic, the engine air filter sits in a rectangular air-box in the engine bay, while the cabin air filter sits behind the glove box on the passenger side. Access each housing by releasing fasteners, replace the filters with the correct orientation (arrows pointing toward the engine or blower as appropriate), and reassemble. Regular replacement keeps engine performance and interior air quality at their best.