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The cabin air filter (also known as the pollen filter, AC filter, dust filter, hvac filter and hepa filter) in your 2011 Mazda 3 cleans the air that you and your passengers breath inside of your car. You need to change it at least once a year or every 20,000 miles, whichever comes first. In addition to improving the air quality of your 3, replacing your cabin air filter 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, when you go to check the cabin air filter on your 3, you can easily swap it for a new one if it is dirty).
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 (Mazdaspeed). If your 3 smells bad when you turn on the heater or air conditioner, or it seems like the fan doesn't blow air as well as it used to, replacing your cabin air filter is a likely the best fix! The video above shows you where the cabin air filter in your 2011 3 is located and how to check it.
Did you know that heat is worse for your battery than cold? Replace it every 4 years2011 Mazda 3 Mazdaspeed 2.3L 4 Cyl. Turbo
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2011 Mazda 3 Mazdaspeed 2.3L 4 Cyl. Turbo
See how to seal up minor power steering fluid leaks2011 Mazda 3 Mazdaspeed 2.3L 4 Cyl. Turbo
Learning how to jump your car before you need to is an excellent idea2011 Mazda 3 Mazdaspeed 2.3L 4 Cyl. Turbo
White light when you back up - yup, they burn out and you can replace them with bright LEDs2011 Mazda 3 Mazdaspeed 2.3L 4 Cyl. Turbo
Cars burn, leak and otherwise dispense of their oil. Check your level frequently and top up when necessary2011 Mazda 3 Mazdaspeed 2.3L 4 Cyl. Turbo