What is a cabin air filter replacement?
A cabin air filter replacement helps ensure the air quality circulating inside your car's cabin is as clean as possible.
The job of the cabin air filter is to clean the air that your car pulls in from outside when you turn on the climate control systems. It’s a small, pleated filter usually made of multi-fiber paper cotton. It traps contaminants before they can enter your car.
Cabin air filters are notorious for becoming dirty and clogged, and they should be replaced every 15,000 to 30,000 miles.
How do I know if my cabin air filter needs replacing?
Your car’s owner’s manual will specify how often you should change your cabin air filter, but if you don’t have one handy, here are some common signs to watch out for:
Poor airflow, even when the heat or air conditioner is on high
Whistling noise coming from the cabin air intake ducts
Musty, unpleasant odors coming from the air or poor air quality
Excessive noise when the heating or air conditioning system is running
How often should you replace the cabin air filter?
Since the cabin air filter directly affects the air quality in your car’s interior, you’ll want to ensure you’re replacing it regularly. On average, cabin air filters should be replaced every 15,000 to 30,000 miles, depending on your vehicle.
If you live in a polluted area (like an urban center) or regularly park under a tree, you’ll likely need to replace your cabin air filter more often. If you suffer from allergies or have a compromised respiratory system, you may want to replace your filter as often as every 5,000 miles to limit allergens entering your vehicle.
When doing regular vehicle maintenance
every 3,000 to 6,000 miles, have your vehicle’s cabin air filter inspected and replaced, if needed. Can I replace my cabin air filter myself?
If you’re looking to save money on car expenses
, changing your car’s cabin air filter is a quick and easy job that you can do, depending on your vehicle. The air filter in most cars sits behind the glovebox, so you may be able to access it by removing the glovebox from the fasteners holding it in place. If the filter in your car is behind the glovebox, you should be able to find instructions for changing it in your owner’s manual. However, some vehicles have the cabin air filter beneath the dashboard or under the hood—if this is the case, it may not be as accessible. If you’re not comfortable replacing your cabin air filter yourself, leave it to a professional mechanic.