Most mechanics can replace the engine's air filter in less than half an hour. If the air filter is in an easily accessible location, it shouldn't take more than an hour to replace it. Repair shops will increase the cost of a filter and will likely charge you for the installation. An engine air filter filters the air that enters the engine and traps dust particles, sand, dirt, and other debris that could damage engine parts.
You can expect to change your air filter every 12,000 to 15,000 miles, or as suggested in your owner's manual. If you have started to notice a reduction in fuel consumption or if your engine is idling approximately and the engine light has come on, it's time to replace the air filter. Cabin air filters tend to get dirty faster than engine air filters and need to be replaced more frequently. The engine check light may come on, especially if the engine fails to start or indicates a lean condition, indicating that the mass air flow sensor is dirty or has failed completely.
Replacing an air filter is a relatively simple task that can be done by most car owners. However, if you don't feel comfortable doing it yourself, you can take your vehicle to a dealership or auto repair shop for assistance. While paying someone else to do the cabin filter replacement is certainly convenient, if you consider the wait time and cost associated with labor, you should see a solid reason to replace the cabin filter yourself. It's important to remember that air filters should be changed every 10,000 miles or two years, whichever comes first.
This will help ensure that your car runs smoothly and efficiently. Don't risk it: change those filters every 10,000 miles, even if they're still doing their job well enough.