There are two air filters in the 2018 Honda Accord: the engine air filter sits in the engine bay on the driver’s side, and the cabin air filter sits behind the glove box on the passenger side. Here’s how to locate and replace each one.
Engine air filter location
To access the engine air filter in the 2018 Accord, locate the black rectangular air filter housing in the engine bay, typically on the driver’s side near the front of the engine. The housing is secured with clips or screws; removing them provides access to the filter.
What follows are the steps to locate and replace the engine air filter:
- Open the hood and find the engine air filter housing. It is a black plastic box with a large intake hose connected to it, usually positioned on the driver’s side front area of the engine bay.
- Release the clips or screws securing the housing lid and lift the lid to expose the filter.
- Remove the old filter and inspect the housing for debris. Note the correct orientation of the filter (look for arrows or edges that indicate airflow).
- Insert the new filter in the same orientation, ensuring a snug fit and a proper seal around the housing.
- Reattach the housing lid and secure the clips or screws. Lower the hood when finished.
Keeping the engine air filter in good condition helps maintain engine performance and fuel efficiency. If you notice reduced power, lower fuel economy, or unusual engine noises, inspect or replace the filter sooner.
Cabin air filter location
The cabin air filter is located behind the glove box on the passenger side. Accessing it may require lowering or removing the glove box or a small panel to reach the filter housing.
What follows are the steps to replace the cabin air filter:
- Open the glove box and, if necessary, release the dampers or remove the glove box to create space for access to the filter housing behind it.
- Locate the cabin air filter housing behind the glove box and release the retaining tabs or screws to remove the cover.
- Take out the old filter and note the correct orientation. Clean any dust or debris from the housing.
- Install the new filter with the correct orientation, ensuring the seal sits evenly in the housing.
- Reattach the housing cover and reinstall the glove box or its panel, then close the glove compartment.
Regular cabin air filter replacement helps maintain cabin airflow and reduces odors. If you drive in dusty or high-pollen areas, you may want to replace it more frequently than the typical interval.
Summary
The 2018 Honda Accord contains two separate air filters: the engine air filter in the engine bay on the driver’s side, and the cabin air filter behind the glove box on the passenger side. Both are straightforward to replace with basic tools, and replacement intervals are commonly around 30,000 miles for the engine filter and about 15,000 miles for the cabin filter, though you should consult the owner's manual for the exact guidance based on your model and conditions.