The engine air filter sits inside a rectangular plastic housing on the passenger side of the engine bay near the front; you access it by releasing the lid’s clips or screws and lifting the box cover to replace the filter.
In addition to locating the housing, it’s important not to confuse it with the cabin air filter, which is behind the glove box. This guide covers the engine air filter for a 2017 Civic across common trims, including 1.5L turbo and 2.0L engines.
Location in the engine bay
The air filter housing is a rectangular black plastic box mounted toward the front-right side of the engine bay. The intake hose from the front of the car often leads into the top or side of the box, and the filter sits inside at the bottom. The lid is typically secured with plastic clips or small screws, and the filter orientation arrows should point toward the engine when reinstalling.
How to replace the engine air filter
To replace the engine air filter, follow these steps. You’ll remove the housing lid, take out the old filter, and insert a new one in the correct orientation before resealing the box.
- Turn off the engine and open the hood. Locate the rectangular air filter housing on the passenger side of the engine bay toward the front.
- Release the clips or screws securing the lid. If clips, carefully pry them open with your hands or a small flat tool; if screws, use the appropriate screwdriver or socket.
- Lift the lid and remove the old filter. Note how it sits in the housing for correct reinsertion.
- Inspect the inside of the housing for debris or moisture and wipe it clean if needed.
- Insert the new filter with the airflow arrows pointing toward the engine. Ensure it sits evenly and the housing seals properly around the edges.
- Reattach the lid and secure the clips or screws. Reconnect any intake hose if you moved it.
- Start the engine and listen for any abnormal air-leak noises; the engine should run smoothly with no whistling sounds.
After replacing, verify that the lid is snug and the intake path is clear of obstructions. This helps ensure optimal engine performance and fuel economy.
Summary
For a 2017 Honda Civic, the engine air filter lives in a rectangular plastic housing on the passenger side of the engine bay near the front. Access the housing by releasing the lid’s clips or screws, replace the filter with a correctly sized unit, and reassemble. Always distinguish this from the cabin air filter behind the glove box, and consult the owner’s manual for trim-specific details or differences.