How to Replace Engine Air Filter Honda Accord | DIY Save $35

Replacing the engine air filter on a Honda Accord takes about 10 minutes and costs roughly $35 in parts versus $70 at the dealer.

Knowing how to replace the engine air filter in a Honda Accord saves you dealer markups and gives you control over part quality. The process varies by generation—some models need a screwdriver, others need nothing at all—but every Accord owner can do it in under 15 minutes once they know where the filter lives under the hood.

Which Tools and Filter Do You Need?

The tools depend entirely on your Accord’s model year. Newer generations (2018–2024) require zero tools—just your hands. Older generations need either a Phillips screwdriver or an 8mm socket.

Engine Air Filter Replacement by Model Year

Every Accord follows the same overall workflow: open the airbox, remove the old filter, wipe the housing clean, install the new filter with the airflow arrow pointing toward the engine, and close the lid. The details change by generation.

1998–2003 Models

The airbox sits on the driver’s side. Release the two retaining clips by pulling them outward, lift the cover, and swap the filter. No tools needed—the clips are hand-operated.

2003–2007 Models

Use an 8mm socket to loosen the four screws on the airbox top—do not remove them fully. Lift the top, replace the filter, then tighten the screws in a crisscross pattern (top right to bottom left to top left to bottom right) to keep the housing flat.

2013–2017 Models

A Phillips screwdriver handles the 6–8 visible fasteners. Remove them in a systematic order—top right, bottom left, top left, bottom right—to apply even pressure on the cover.

2018–2024 Models

These are the simplest. Find the filter housing at the front corner on the driver’s side (1.5L and 2.0L turbo) or at the top rear near the firewall (Hybrid). Pull the two metal clips outward and upward to release them. On 2023–2024 models, release the two plastic tabs as well. Lift the cover, swap the filter, and press the clips down until they click.

Six Mistakes to Avoid

This job is straightforward, but a few common errors can turn a 10-minute swap into a headache.

• Installing the filter backward. The airflow arrow must point toward the engine, not outward. A backward filter restricts airflow and lets debris bypass the media.
• Buying the wrong part. Filter width, length, and kick-up leg height vary by year and trim—always verify the dimensions match your specific model before ordering.
• Forcing the cover without releasing rear tabs. Some airboxes have hooks at the back—lift evenly instead of yanking.
• Damaging the wire near the Hybrid airbox. The electrical connector sits close to the housing on Hybrid models; disconnect it gently before lifting the cover.
• Ignoring the crisscross pattern on older models. Tightening screws in the wrong order on 2003–2017 models can warp the airbox and cause air leaks.
• Working near hot metal. The radiator hoses and engine components stay hot for a while after shutdown—let the engine cool fully and wear work gloves.

FAQs

Replacement Interval

If you drive frequently on unpaved roads or in stop-and-go traffic, aim for the shorter end of that range.

Effect on Fuel Economy

A dirty filter reduces airflow to the engine, which can lower fuel efficiency by a small margin. Replacing a badly clogged filter may restore lost mpg, but it will not solve major engine or drivetrain problems.

Engine vs. Cabin Air Filter

The engine air filter sits under the hood and cleans air entering the engine. The cabin air filter is behind the glove box and cleans air entering the passenger compartment. They are replaced at different intervals and serve completely separate functions.