In brief, there are two air filters to consider: the engine air filter, located in the engine bay, and the cabin air filter, located behind the glove box. This article explains where to find both filters and how to replace them across common Outlander generations.
Engine air filter location
The engine air filter sits in a rectangular black plastic housing in the engine bay, typically on the passenger side and connected to a large intake hose that leads toward the throttle body. Access is gained by releasing the clips or screws on the housing lid. Exact placement and fasteners can vary slightly by generation, but the general setup remains consistent.
What you’ll need
Replacement engine air filter of the correct size, a basic hand tool or just the clips (depending on the model), and a clean cloth for wiping debris from the housing.
Before you start, make sure the engine is off and cool.
- Open the hood and locate the engine air filter housing—the rectangular black box on the passenger side of the engine bay, connected to the intake duct.
- Release the clips or screws securing the lid and lift it away to expose the filter.
- Remove the old filter and note its orientation. Check the inside of the housing for dirt or debris and wipe it clean if needed.
- Install the new filter in the same orientation as the old one, ensuring it sits flat and seats fully in the housing. Do not force it.
- Reposition the lid and re-secure the clips or screws. Reconnect any intake ducting that you moved.
- Close the hood and, if desired, start the engine to verify it runs smoothly and there are no unusual noises.
After replacing the engine air filter, ensure the lid is firmly closed and all connections are secure. This helps maintain optimal airflow and engine performance.
Cabin air filter location
The cabin air filter for most Outlander models is located behind the glove box on the passenger side. On many generations, you must open or drop the glove box by releasing side stops or removing a couple of screws to access the filter housing behind it. The exact method can vary by year, but the cabin filter is consistently behind the glove box in most models.
What you’ll need
New cabin air filter of the correct size, and possibly a small screwdriver or tool to release the glove box stops or screws. A clean cloth helps to wipe away any dust.
Before you start, ensure the vehicle is off and parked on a level surface.
- Park the Outlander, turn off the engine, and sit in the passenger seat. Empty the glove box to give yourself room to work.
- On most models, gently press in the sides of the glove box or remove the lower screws to allow the glove box to drop down and reveal the cabin filter housing behind it.
- Remove the filter cover by sliding or unclipping it, then take out the old cabin air filter.
- Inspect the housing for dust or debris and wipe it clean with a dry cloth if needed.
- Insert the new cabin air filter with the airflow arrows pointing toward the blower motor or into the cabin, as indicated on the filter.
- Reattach the filter housing cover, then lift the glove box back into place and secure it with the stops or screws.
- Close the glove box and run the HVAC on a short test to confirm air is flowing properly through the new filter.
For best results, ensure the glove box is fully reinstalled and the area around the filter is clean before closing up. This helps maintain good interior air quality and HVAC efficiency.
Summary
On a Mitsubishi Outlander, the two primary air filters are the engine air filter in the engine bay (passenger side) and the cabin air filter behind the glove box (also on the passenger side). Replacement intervals vary by model year and driving conditions, so consult the owner’s manual for the recommended schedule. With basic tools and careful attention to orientation, both filters can be replaced at home to maintain engine efficiency and interior air quality.