The engine air filter is located in a rectangular plastic housing in the engine bay, typically on the driver’s side, connected to the intake hose; the cabin air filter sits behind the glove box on the passenger side.
This article explains both locations and how to replace each filter, with step-by-step guidance suited to the 2013 Corolla.
Engine air filter location
Where to look in the engine bay
The engine air filter lives inside a rectangular plastic box near the front of the engine compartment. It is connected to a large intake hose that leads toward the throttle body, making it relatively easy to spot when you open the hood.
To replace the engine air filter, follow these steps:
- Park the car, set the parking brake, and open the hood. Locate the air filter housing in the engine bay.
- Unclip or unscrew the housing cover. Some models use plastic clips; others use screws—have a screwdriver handy if needed.
- Lift the cover away and remove the old filter. Note the orientation; most filters have an airflow arrow that should align with the housing.
- Inspect the inside of the housing for debris and wipe it clean if necessary.
- Insert the new air filter, ensuring it sits flat and the arrow matches the airflow direction.
- Reconnect the housing cover and secure the clips or screws firmly. Reconnect any hoses if you moved them.
- Close the hood and start the engine briefly to confirm there are no leaks or unusual noises.
Concluding: Replacing the engine air filter is a routine maintenance task. Under normal conditions it’s typically recommended every 15,000–30,000 miles, with more frequent changes in dusty or harsh environments.
Cabin air filter location
Behind the glove box on the passenger side
The cabin air filter sits behind the glove box on the passenger side of the vehicle. Access is gained by dropping the glove box or removing its cover to expose the filter housing.
To replace the cabin air filter, follow these steps:
- Park the car, turn off the engine, and remove contents from the glove box for clearance.
- Open the glove box and either squeeze the sides or release the stops to allow it to drop down fully.
- Behind the glove box, locate the cabin air filter cover and remove any retaining clips or screws.
- Pull out the old filter and inspect the area for debris or leaves; wipe clean if needed.
- Install the new cabin air filter with the arrows indicating airflow pointing toward the HVAC unit (the correct orientation is usually noted on the filter).
- Reattach the filter cover, lift the glove box back into place, and ensure it snaps securely.
Concluding: Cabin air filter replacement is commonly recommended every 15,000 miles or once a year, depending on driving conditions, air quality, and whether you notice reduced airflow or odors inside the cabin.
Summary
For a 2013 Toyota Corolla, there are two filters to consider: the engine air filter in the engine bay (usually on the driver’s side) and the cabin air filter behind the glove box on the passenger side. Replacing either filter involves removing a cover, seating the new filter in the correct orientation, and reassembling. Regular checks help maintain engine performance and cabin air quality.