Air Filter
Car Parts
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Air Filter Information
What does an air filter do in a car?
An air filter works hard to prevent debris from entering the car’s engine. The fuel-air mixture that your car relies on to propel you forward is cleaned by the air filter, which removes dirt and debris before the airflow reaches the engine. A constant flow of clean, fresh air also prevents your car from overheating. All of the above are damaging to your car’s overall performance, but as well as this, air filters play a huge role in your car’s efficiency and lifespan.
Where is the air filter in a car?
To find out where your air filter is located, check your vehicle’s handbook. The air filter may be found under the bonnet or behind the glove box.
How often to change air filter in car
How often you change your air filter will vary between vehicle makes and models. Typically manufacturers recommend they are replaced in an annual service or every 15K to 30K miles. If your air filter is faulty or needs replacing, dirt and grime can also mix with the oil that is supplied to the engine, over time wearing away the components of the engine.
How to change a car air filter
You can change your car filter at home by following our guide with step-by-step instructions and a checklist of what you need to get the job done.
Buy a car air filter online
At Halfords, we stock a huge range of air filters and performance air filters online for all car makes and models, including performance air filters for diesel cars. More commonly required air filters can be found in-store. Finding the best air filter for your car is easy with our vehicle registration tool, simply enter your reg into the box and our system will pull relevant products suitable for your car.
Once you’ve found the correct products, use our delivery or click & collect service to get them sooner. If you’re still unsure which products you need, head to your local Halfords store where one of our colleagues will be happy to help you out.
Ways to apply
- Build your basket and select Trade Credit at checkout.
- Apply below to check your eligibility.
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- If eligible, receive your Trade Credit limit instantly.
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Pay on account
- Complete your purchase and pay on account at the end of the following month.
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Already applied and have a limit? Approve your order via SMS to finalise your purchase.
You’ll find a huge range of quality air and performance filters for your vehicle at Halfords. We offer air filters for all car models, ensuring the quality matches what was originally fitted to your vehicle. Enter your vehicle registration, or enter your make, model and year to see the correct air filters for your car.
What does an air filter do?
An air filter helps your engine run smoothly. It does this by intercepting tiny particles like dust and dirt before they reach your engine. This helps your engine run efficiently, as these particles can cause damage if not trapped. A clean air filter also ensures the optimal amount of clean air mixes with your fuel. This enhances engine performance and fuel efficiency.
How often should you replace your air filter?
How often you change your air filter depends on your car. Usually, manufacturers recommend replacing them in an annual service or every 12,000-15,000 miles—whichever comes first. If you’re unsure, check your vehicle’s manual for specific recommendations. Regular replacement helps keep your engine running smoothly.
Signs you need to replace the air filter
- 12 months or 12,000-15,000 miles (whichever sooner) since your last change.
- Air flow issues
- Reduced fuel efficiency
Order car air filters online
Enter your vehicle registration number or by selecting your vehicle make, model and year to identify the right parts. Order online for Click and Collect at your local Halford store or have the parts delivered directly to you.
Signs you need to replace the air filter
Discover how to change a car air filter with our handy guide.
What other car filters are available?
Air Filters FAQs
Air filters prevent harmful debris, dirt and other contaminants from entering your engine. Cabin filters prevent dust, pollen, dirt, and other pollutants from entering your A/C and heat vents.
Need your air filter replaced? Head to your local Halfords, where one of our friendly specialists will gladly help. But if you want to do it yourself, take a look at our guide on how to change an air filter, outlining every step.
How often you change your air filter depends on the make and model of your vehicle. But typically, manufacturers recommend replacing your air filters in an annual service or every 12,000-15,000 miles. It’s important to stay on top of checking and replacing your air filter, as inefficient air filters can lead to dirt and grime mixing with the oil supplied to the engine. Over time, this can damage the components of the engine.
Finding the best car air filter will depend on the manufacture and model of your vehicle. Enter your registration into our simple car part look-up tool to find the right air filter for your car.