The air filter on your Toyota Matrix takes in a massive amount of air and purifies it before it enters the engine. The filter is designed to be replaceable; that's because over time it will surely become clogged with all manner of dirt, tiny debris, even the occasional insect. Install a new air filter on the Toyota Matrix after every 30,000 miles on the road to keep your engine running--and breathing--at its highest efficiency. The average backyard mechanic can easily replace the filter in just a few minutes.
Ensure that your Toyota Matrix is turned off and the engine is cool to the touch.
Raise the hood of the car.
Locate the air filter housing. It's a black box on the driver's side of the engine.
Use your fingers to unhook the clips that secure the lid to the housing. Be careful to catch the clips as they inevitably fall away. Now simply lift up and remove the cover.
Lift out the old filter element. Wipe the inside of the filter housing and cover, using a shop rag.
Place the new filter element inside the filter housing, correct side up (refer to the replacement filter instructions for specific placement instructions).
Return the cover atop the housing. Fasten the clips to secure the cover in place. Give it a tug with your hands to make sure the cover is tightly sealed.
Lower the hood of the Matrix.
