The air filter sits inside the black plastic air‑filter housing on the passenger side of the engine bay. You access it by lifting the housing lid and replacing the filter.
Where to look in the engine bay
In a 2010 Accord, the air filter housing is a large rectangular box mounted on the passenger side of the engine compartment, toward the front of the bay. An intake hose runs from the front of the engine bay into the box, and another hose connects the box to the throttle body. The lid is typically secured with plastic clips (and sometimes a small screw), which you’ll need to release to open the box.
Engine variants and placement
Whether your Accord uses the 2.4-liter four‑cylinder or the 3.5-liter V6, the air filter lives in the same airbox. The main difference between engines is the routing of the intake hoses; the access method for the lid remains the same—release the clips or screws and lift the lid to reach the filter.
Replacing the air filter
Follow these steps to locate and replace the air filter.
- Park on level ground, set the parking brake, and turn off the engine. Allow the engine to cool before touching the air intake box.
- Open the hood and locate the large rectangular air filter housing on the passenger side of the engine bay.
- Release the fasteners (clips or screws) securing the lid and lift the lid to expose the filter.
- Remove the old filter and inspect the inside of the box for debris or dirt; wipe with a clean cloth if necessary.
- Insert a new air filter with the airflow arrow pointing toward the engine, reseat the lid, and resecure the clips or screws.
- Reconnect any hoses, close the hood, and start the engine to ensure there are no unusual sounds or air leaks.
Replacing the filter correctly helps maintain proper airflow, engine performance, and fuel efficiency. Use the correct OEM or equivalent replacement and consult your owner's manual for the recommended replacement interval based on driving conditions.
Tips and maintenance
Note: If you live in dusty or sandy areas, inspect and replace the air filter more frequently. Always use a clean, dry filter and avoid touching the filter media more than necessary to prevent contamination.
Summary
For the 2010 Honda Accord, the air filter is housed in a black rectangular airbox on the passenger side of the engine bay. Access is gained by releasing the lid’s clips or screws, removing the old filter, and installing a new one with the correct orientation. The process is straightforward and can be completed in a few minutes, with maintenance intervals found in the owner’s manual or maintenance minder system.