How Often Should You Have Your Cabin & Engine Air Filters Changed?Your vehicle's cabin air filter and engine air filter play vital roles in keeping the air inside your vehicle clean and free of contaminants. That's why it's important to change them on a regular basis.

To get the most accurate estimate of how often to change your cabin air filter and engine air filter, consult your vehicle's owner's manual. However, as a general rule of thumb, you should change your cabin air filter every 12 months or 12,000 miles, whichever comes first. For your engine air filter, it's recommended that you change it every 30,000 miles or every 2 years, whichever comes first.

Signs that it's time to change your cabin air filter or engine air filter include reduced airflow from the vents, strange smells coming from the vents, and increased engine noise. If you notice any of these signs, be sure to get your filter changed as soon as possible.