The 2008 Honda Accord uses two air filters: an engine air filter housed under the hood in a rectangular box, and a cabin air filter located behind the glove box on the passenger side.
In this article, you’ll learn exactly where to locate both filters and how to replace them, with practical steps you can follow at home. The engine air filter sits in a plastic housing in the engine bay, while the cabin air filter sits inside the dashboard area behind the glove box.
Engine air filter: location and replacement steps
To locate and replace the engine air filter in the 2008 Accord, start by inspecting the under-hood air intake system. The filter sits inside a rectangular black plastic box with a large intake hose connected to it.
What you’ll need
Most replacements can be done with basic hand tools. Have a replacement engine air filter on hand, and a pair of pliers or a screwdriver if your model uses screws or stubborn clips.
- Open the hood and locate the rectangular engine air filter housing in the engine bay. It is usually near the front and connected to a large intake hose.
- Unclip or unscrew the lid of the air box to access the filter. Carefully lift the lid off.
- Remove the old filter and inspect the housing for dirt or debris. Note which direction the filter is oriented (check for arrows on the filter).
- Install the new filter with the arrows pointing toward the throttle body (the direction of airflow). Ensure it sits flat and fills the box completely.
- Reattach the air box lid and secure the clips or screws securely.
- Close the hood and start the engine to confirm there are no rattles or leaks around the intake.
The engine air filter replacement is a straightforward under-hood job that many DIYers can complete in under 15 minutes. For normal driving, Honda typically recommends checking or replacing the engine filter at intervals specified in the owner's manual, with more frequent changes in dusty or harsh environments.
Cabin air filter: location and replacement steps
The cabin air filter in the 2008 Accord is located inside the vehicle, behind the glove box on the passenger side. You’ll access a rectangular filter housing by removing or lowering the glove box, then removing the cover of the filter housing.
What you’ll need
Have a replacement cabin air filter on hand. In some trims you may need a small screwdriver or a tool to release the glove box stops, but many models only require gentle squeezing of the glove box sides.
- Inside the cabin, either push in or carefully lower the glove box to expose the built-in stop dampers and the filter housing behind it.
- Locate and remove the filter housing cover by releasing the clips or screws.
- Take out the old cabin filter and inspect the housing for dirt and debris. Note the orientation of the filter (arrows usually point toward the HVAC blower).
- Insert the new filter with the arrows pointing toward the blower motor, ensuring a snug fit in the housing.
- Reinstall the housing cover and reattach the glove box. Make sure the glove box engages its stops and damper correctly.
- Test the HVAC system to ensure proper airflow from the vents.
Replacing the cabin air filter can improve interior air quality and HVAC performance, especially in dusty or urban environments. Refer to the owner’s manual for the recommended replacement interval, which varies by climate and driving conditions.
Maintenance notes and quick tips
Regularly inspecting both filters helps maintain engine performance and cabin air quality. If you notice reduced airflow, unusual odors, or visible dirt on the filters, it’s a good time to replace them. Always consult the 2008 Honda Accord owner’s manual for exact intervals and any model-specific steps.
Summary
For a 2008 Honda Accord, the air filters are located in two places: the engine air filter under the hood in a rectangular housing, and the cabin air filter behind the glove box on the passenger side. Both can be replaced with basic tools and straightforward steps. Performing these checks during routine maintenance helps sustain engine efficiency and interior air quality.