The quick answer is that you can replace both the engine air filter and the cabin air filter yourself in about 15–30 minutes with a few basic tools. The engine air filter sits in the engine bay’s air intake box, while the cabin filter is located behind the glove box. Both replacements are straightforward with minimal risk if you follow the steps carefully.
Engine air filter replacement
The following steps describe how to replace the engine air filter in most 2016 Accord models. The process involves opening the airbox, removing the old filter, and installing a new one correctly oriented.
- Park on a level surface, turn off the engine, and engage the parking brake. For extra safety, you can disconnect the negative battery terminal for a few minutes.
- Open the hood and locate the engine air intake box in the engine bay. It’s a rectangular black plastic housing near the front or side of the engine, secured with clips or screws.
- Release the clips or remove the screws to lift the lid of the airbox. Keep track of all fasteners for reassembly.
- Remove the old filter and inspect it for wear, tears, and excessive dirt. Note the orientation of the filter so you can install the new one the same way.
- Clean the inside of the airbox with a clean rag to remove dust or debris before installing the new filter.
- Insert the new engine air filter into the housing, ensuring it seats evenly. Align it with the airflow direction marks on the filter (an arrow indicating the direction of airflow).
- Reinstall the airbox lid and secure the clips or screws. Make sure there are no gaps between the lid and the box.
- Reconnect the battery if you disconnected it. Start the engine and listen for any unusual noises that might indicate an improper seal.
Concluding: Replacing the engine air filter as part of routine maintenance helps maintain engine performance and fuel efficiency by reducing dust and debris entering the intake system.
Cabin air filter replacement
The cabin air filter keeps the interior air clean and maintains HVAC performance. On the 2016 Accord, you’ll typically access it by lowering the glove box and removing a small panel or cover on the filter housing behind the glove box.
- Turn off the car and remove any items from the glove box. Open the glove box and let it hang down or remove it fully if required by your trim.
- Gently squeeze the sides of the glove box or release the dampers to lower the box, exposing the cabin air filter housing behind it.
- Remove the cabin filter cover by releasing its tabs or removing screws, depending on the trim. Note the filter’s orientation as you remove it.
- Take out the old cabin filter and inspect the housing for debris. Wipe out any dust or leaves from the housing.
- Install the new cabin filter with the arrows pointing in the direction of airflow (toward the passenger cabin or according to the housing markings).
- Reattach the filter cover, lift the glove box back into place, and ensure it closes smoothly. Return any contents to the glove box.
- Run the HVAC system on a few minutes to confirm strong airflow and proper filtration.
Concluding: Cabin filter replacement is a quick, low-cost maintenance task that improves interior air quality and HVAC efficiency, especially in dusty environments or with allergies.
Maintenance tips and signs to watch for
When to replace
Engine air filters typically require replacement every 15,000–30,000 miles under normal driving, with shorter intervals in dusty or high-load conditions. Cabin filters usually need attention every 15,000–25,000 miles or once a year, whichever comes first. Always check the owner’s manual for exact intervals and inspect filters if you notice reduced airflow or odd odors.
What you’ll need
Basic supplies include a new engine air filter, a new cabin air filter, a clean rag, and a few basic tools (if needed for clips or screws). No special tools beyond a screwdriver are usually required.
Summary
Changing the air filters on a 2016 Honda Accord—both engine and cabin—is a practical DIY task that protects engine performance and improves interior air quality. The engine filter lives in the engine bay air intake box, while the cabin filter sits behind the glove box. With a few minutes and basic tools, you can complete both replacements and keep your Accord running smoothly.