Air is drawn into the engine as a critical part of the combustion process. The engine air filter captures airborne contaminants such as dirt, dust and even bugs before they can enter the engine. A dirty, clogged engine air filter can contribute to poor overall engine performance.
The air filter should be replaced approximately every 9-12 months depending upon mileage, weather conditions and visual inspection. By not replacing a dirty air filter a vehicle will not achieve optimal mpg.
AutoFast: Why Replace Your Engine Air Filter?
The climate control system in your passenger cabin includes a filter element that helps remove dust, pollen, mold spores and other particulates from the air you and your passengers breathe. Frequently, customers may complain about a sour or musty smell coming from their vent system. This is usually indicative of a cabin filter that should be changed.
The pollen filter should be replaced approximately every 12-18 months depending upon mileage, weather conditions and visual inspection. For the health and safety of the driver and passengers in the vehicle it is imperative that the cabin pollen filter is periodically changed.