What is the function of a car air filter?

1 Answers
LeMelanie
07/30/25 12:50am
Function of the air filter: It filters out particulate impurities in the air, ensuring that a sufficient amount of clean air enters the cylinder, preventing floating dust in the air from being sucked into the engine, which accelerates the wear of the piston group and cylinder. According to the car's maintenance manual, the air filter should generally be replaced every 10,000 to 20,000 kilometers or every other maintenance interval. However, it is recommended to clean the air filter every 5,000 kilometers to reduce the formation of throttle sludge. The position of the car's air filter element is determined by the intake form and the structure of the engine. It is usually located in the air filter on the engine intake pipe. There are two types of air filters in cars: dry and wet. Dry filters are made of paper or organic materials, while wet filters are made of metal mesh. Air filter: It is a type of filter, also known as an air filter cartridge, air cleaner, or style. It is mainly used in engineering vehicles, cars, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms as an air filter. During operation, the engine sucks in a large amount of air. If the air is not filtered, the suspended dust in the air will be sucked into the cylinder, accelerating the wear of the piston group and cylinder. Larger particles entering between the piston and cylinder can cause severe cylinder scoring, which is particularly serious in dry and sandy working environments. The air cleaner is installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air, ensuring that a sufficient amount of clean air enters the cylinder. Using an excessively dirty air filter in a car can cause insufficient engine intake, incomplete fuel combustion, leading to unstable engine operation, reduced power, and increased fuel consumption. Therefore, the car must keep the air filter clean. The car air cleaner is a device that removes particulate impurities from the air, consisting of one or several air filter components. Its main function is to filter out harmful impurities in the air that are about to enter the cylinder, reducing early wear of the cylinder, piston, piston rings, valves, and valve seats. Therefore, before the air enters the cylinder, it must first pass through the fine filtration of the air cleaner. An excessively dirty air filter can cause poor engine performance, excessive fuel consumption, and engine damage. When inspecting the air filter, if it is found to have little dust and is lightly clogged, it can be cleaned by blowing high-pressure air from the inside out and continue to be used. An excessively dirty air filter should be replaced promptly.
Was this review help?
3
1
Share
More Forum Discussions

How to Sew a Steering Wheel Cover?

Steering wheel cover sewing method is: First cover the upper part of the steering wheel, use your legs to support the lower part, then use both hands to cover the left and right sides of the steering wheel. Next, thread the needle through the inner seam of the cover and pull it tight. Repeat this process until the sewing is completed. Relevant information about car steering wheels: 1. Function: Its function is to convert the force applied by the driver on the steering wheel edge into torque and transmit it to the steering shaft. 2. Correct grip: If the steering wheel is regarded as a clock face, the correct hand position is to place the left hand between the 9 and 10 o'clock positions, and the right hand between the 3 and 4 o'clock positions. In case of a collision, this posture is more conducive to supporting the body.
14
3
Share

Does Transmission Fluid Affect Fuel Consumption?

Transmission fluid does not affect fuel consumption because it only influences the operation of the transmission and has no relation to fuel consumption. Here is some extended information about the transmission: 1. Transmission: The transmission is one of the three major components of a car. If there is an abnormality in the transmission, the car cannot run properly. Transmission oil is the most direct component in contact with the transmission, and the quality of the oil directly affects the transmission's performance. Timely oil changes are the best way to ensure the transmission's longevity. 2. Function: Transmission oil serves the same purpose as engine oil—it lubricates components to reduce friction between parts, dissolves impurities within the components into the oil, and prevents blockages in the pipelines.
17
0
Share

What to Do When the Polo Fuel Tank Cap Won't Open?

Open the left side of the trunk, remove the sound insulation material, and locate the motor near the fuel filler port. Remove it to open the cap. Relevant details are as follows: 1. Fuel Tank Maintenance: The maintenance of the fuel tank mainly involves draining accumulated water and sediment from the tank during routine vehicle maintenance, and checking for oil leaks at pipe joints and switches. For fuel tank caps equipped with air and vapor valves, ensure the ventilation holes are clear. The filter screen at the fuel filler port should remain intact to prevent impurities from entering the tank and clogging the fuel lines. The sealing gasket on the fuel filler cap should also be in good condition to avoid fuel spillage while driving. 2. Fuel Tank Cleaning: Exterior: Inspect the fuel tank, pipes, and joints for dents or oil leaks. Ensure the fuel tank bracket mounting screws are tightened. Interior: Open the fuel filler port, remove the filter basket, and siphon out the fuel, leaving only about 30 liters of gasoline in the tank.
10
2
Share

What are the differences between the J15 and J16 models of the Shadow Leopard?

There are differences in design, configuration, and body dimensions. The specific details are as follows: Design: The Shadow Leopard J15 does not have a rear spoiler, while the J16 comes with a small rear spoiler. Configuration: The J15 features a wide-angle reverse camera, whereas the J16 is equipped with a 360-degree panoramic camera. The J15 has a 7.0-inch LCD dashboard, while the J16 boasts a 10.25-inch LCD dashboard. The J15 supports CarPlay, whereas the J16 utilizes a car networking system. Additionally, the J16 includes an exclusive sound wave system, which the J15 lacks. Extended information on the Shadow Leopard J15/J16: The J15 and J16 share the same body dimensions, wheelbase, and powertrain. Body dimensions: Length is 4700mm, width is 1850mm, height is 1432mm, and the wheelbase is 2736mm. Powertrain: Both models are powered by a 1.5T 177-horsepower L4 engine, with a maximum power at 5500rpm and maximum torque at 1500-4000rpm, producing a maximum torque of 270 Nm.
7
3
Share

Where is the anti-theft screw for the BMW X3?

The anti-theft screw for the BMW X3 is located on the left side of the trunk. Below are the differences between the BMW 4 Series and 3 Series: 1. Model: The BMW 4 Series is the coupe version of the 3 Series. 2. Design: The BMW 3 Series only has four-door long-wheelbase and standard-wheelbase versions, while the 4 Series includes convertibles, two-door coupes, and four-door coupes. 3. Price: The BMW 4 Series is significantly more expensive than the 3 Series. 4. Engine: The BMW 4 Series has more engine models than the 3 Series. Below is additional information about the differences between the new and old BMW 3 Series: 1. Front Design: The new 3 Series has a flatter front design, indicating better aerodynamics and higher performance requirements. 2. Headlight Design: The "Angel Eyes" headlights have evolved further, with more aggressive daytime running lights. The lower air intake grille has sharper angles, making it less bulky compared to the current model. The fog lights have changed from circular to a long strip shape. 3. Side Design: The new 3 Series has a higher waistline that is no longer protruding. The Hofmeister kink has been redesigned to be more rearward and with sharper angles.
8
2
Share

How many liters of fuel does a car consume to travel 100 kilometers?

Due to differences in road conditions, temperature, vehicle condition, driving habits, and many other factors, the fuel consumption for 100 kilometers varies among different vehicles, so there is no standard unified answer. Fuel consumption per 100 kilometers: Fuel consumption per 100 kilometers refers to the amount of fuel a vehicle consumes when traveling 100 kilometers on the road at a certain speed, serving as a theoretical indicator for the vehicle. This metric is obtained by manufacturers in controlled environments using a dynamometer installed on the vehicle's chassis to measure values, which are then converted into speed parameters. The vehicle is then driven at specified speeds to calculate the theoretical experimental fuel consumption data per 100 kilometers for the model. However, this data often differs significantly from actual fuel consumption. Different vehicle models have varying fuel consumption standards, and the fuel consumption for 100 kilometers differs among vehicles; even the same vehicle, when driven by different drivers, will exhibit different fuel consumption; moreover, the same vehicle model will have different fuel consumption under different driving conditions.
9
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.