最初由 mianfei 发布
There are at least two air filters in your car, "Air filter" most time, refers to the engine air filter, thant is what you are talking about.
This filter should change every 12~24 monthes, depends on the road condition, if it's blocked, it will cause engine problem, or cause performance issue.
It locate at the big box under the hood.
Air filter for the ventilation system is called passenger compartment air filter.
This filter should change every 6~12 monthes, depends on the road condition, if it's blocked or dirty , it will not cause big problem, but it's not good for your own health. Most garage don't check this filter. You must check it twice a year by yourself, just as a routine check of your tire pressure. Replace/clean it if needed.
You can find it under your windsheld glass at the passenger side(remove the black plastic cover and slid it out). Some people don't know this filter so it last as long as the car's life, it make bas smell in the car, cause noise of the fun for heavy duty as well as the performance of the AC system.