Many car problems are due to faulty air filters attached to them and the wear caused by them. You should get your filters changed every 12 months or after 12000 miles, whichever comes fast. Don't ignore this maintenance as it will lead to problems in your AC and you are breathing unhealthy air in your car. You can get the filter replaced at your mechanic away in the comfort of your garage in just 10 minutes. By doing it yourself, you can save the trip to the mechanic and also money. Here is how you can do it yourself: Firstly locate your filter, which is situated in the hood of the car. It is a black rectangular box, which has metal clips inside it. You can see it as soon as you pop the hood. If you don't find it there, then check the owner's manual for assistance. After locating it remove the casing and see how the filter is fit inside it. It is important to note the directions of the filter. Make a note of the directions of the filter and remove it. After removing it insert the new filter the same way, the old one was fit in the same direction. You will see that it will be perfectly fit touching the edges. Now close the metal clips after you are done. This way you have changed the air filter. You can also clean out the debris from your new filter by using compressed air. This will improve the life of the filter and make it last longer.