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The cabin air filter in your 2009 Mazda 3 filters the air that is blown from your heater or air conditioner into the cabin of your 3. You need to change it at least once a year or every 20,000 miles. Replacing the cabin air filter (also know as the dust filter, hvac filter, pollen filter, air conditioner filter and hepa filter) will improve the air quality of your 3, will put less strain on your heating and air conditioning system and can increase your gas mileage. These filters are fairly inexpensive, so check out our parts page for great deals on a new one (tip: buy several - they don't expire and you will be able to quickly swap the old one out for a fresh one).
Not all Mazdas have a cabin air filter and for some models, the inclusion of a cabin air filter depends on what trim level you have (S). Newer cars are more likely to have a cabin air filter than older models. If your 3 has a funky odor when you turn on the heat or air conditioner, or it seems like the fan doesn't work as well as it used to, replacing your cabin air filter is a quick and cheap fix! The video above shows you the cabin air filter location in your 3 and how to change it!
Low coolant levels is all to common - top yours up today2004 Ford Focus ZTS 2.3L 4 Cyl.
Coolant hoses wear out over time and need to be replaced - check 'em early and often2004 Ford Focus ZTS 2.3L 4 Cyl.
Learn how to diagnose and fix minor oil leaks in your car2010 Mazda 3 i 2.0L 4 Cyl.
Want an easy way to save $500? Rotate your tires at least three times per year2010 Mazda 3 i 2.0L 4 Cyl.
One of the easiest fluids to top off - learn how to open the hood and where the reservoir is on your car2006 Mazda 6 i 2.3L 4 Cyl. Sedan (4 Door)
Driving with your phone pressed against your ear is illegal in many places. See how to talk hands free!2010 Mazda 6 S 3.7L V6