What is a Car Air Filter?

Published Date: 13th Jun 2023

Image of an Engine Air Filter The role of your car's air filter is critical in maintaining engine health. It sifts out impurities like dirt, dust and pollen, preventing damage that could reduce performance and longevity. Typically located in the engine compartment and behind the air intake duct, it's your car's first line of defence. By regularly replacing and keeping it tidy, you can prolong the life of your engine.

How does a car air filter work?

The car's air filter comprises a series of pleated paper or cotton fibres, where impurities get trapped as the air circulates. The purified air flows into the engine chamber, which blends with fuel and ignites, propelling the vehicle forward.

Why is a car air filter important?

A clean air filter for your car is essential for several reasons. It aids in safeguarding your engine from contaminants while improving fuel economy and minimising emissions.

How often should a car air filter be changed?

The frequency for changing a car's air filter may vary due to factors like the vehicle's make, model or driving conditions. Another Key factor is the type of air filter being used. Although, experts have a general rule of replacing car air filters every 12,000 to 15,000 miles.

How to change a car air filter

Replacing a car's air filter is a straightforward job that you can do at home. Here is a simple guide to the process:

Locate the air filter. It is generally located in the engine compartment, behind the air intake duct.
Remove the air filter cover.
Inspect the old air filter. If it is dirty or damaged, replace it.
Install the new air filter.
Replace the air filter cover.

Tips for choosing a car air filter

When choosing a car air filter, there are a few things to keep in mind:

Ensure the air filter is the correct size and type for your car.
Consider the quality of the air filter. A high-quality air filter will provide better protection for your engine.
When considering air filters, it's important to take price into account. Prices for air filters typically range from £20 to £50.

Your car's engine relies on its air filter to maintain peak condition, optimising fuel and emission levels while preventing potential damage. Regularly replacing your vehicle's air filter is crucial to ensure optimal efficiency and smooth running.

Here are some additional tips for keeping your car air filter clean and in good condition:

Avoid driving in dusty or dirty conditions.
Park your car in a clean area.
Inspect your air filter regularly for signs of dirt or damage.
Clean your air filter with a mild soap and water solution if it is dirty.
Replace your air filter at the recommended intervals.

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