Where is the Focus air filter located?
3 Answers
The Focus air filter is located in the engine compartment. After opening the engine hood, there is an air filter box on the driver's side. Opening the box will reveal the air filter. The air filter is mainly used for air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms. Taking the 2020 Focus as an example, it is a compact car with body dimensions of 4378mm in length, 1810mm in width, and 1468mm in height, a wheelbase of 2705mm, a minimum ground clearance of 135mm, and a body weight of 1242kg.
As someone who frequently maintains my own car, I find the Focus's air filter quite easy to locate. After opening the hood, it's inside that black rectangular box at the front left, near the base of the windshield. The position is designed very intuitively—just flip the cover and you'll see it. I usually check it every 15,000 kilometers; if the filter turns black or gets clogged with dust, it needs replacing. Changing it yourself is super simple—just unscrew a few screws with a screwdriver to remove the old filter and install a new one. The filter isn't expensive; you can get one online for just a few dozen yuan, effectively protecting the engine from inhaling impurities and avoiding increased fuel consumption or reduced power. Remember to ensure the engine is cool before working to prevent burns, and after installation, start the car to test if the sound runs smoothly. Regularly maintaining this small task can keep your car running longer and more worry-free.
After driving a Focus for several years, I've gotten used to handling these minor tasks myself. The air filter is located on the left side of the engine bay - that square plastic box you can spot immediately when popping the hood. It filters incoming air to prevent dust from entering the engine, and neglecting maintenance can lead to sluggish acceleration. Last time I checked, the filter was dirty, so I replaced it in under 30 minutes at less than half the dealership cost. All you need is a screwdriver - no special skills required. I recommend checking every 15,000 km or so, replacing when dirty without delay. After replacement, the engine breathes noticeably better, runs quieter, and helps prevent oil burning issues.
