The comfort of a car is closely related to the shock absorber. If there is something wrong with the shock absorber, it will make people feel very bumpy on the rough road, and it may cause wear and tear of other parts. But the shock absorber of a car does not mean that it can be used permanently. As long as it is in use, it will always be damaged, How often do you replace the shock absorbers? What are its main functions?

The function of shock absorber is mainly to suppress the vibration when spring rebounds after shock absorption and the impact from road surface, damp the vibration transmitted to the vehicle body due to uneven road surface or poor driving conditions, keep the vehicle smooth and comfortable, quickly eliminate the vibration of axle and wheel caused by road surface, and ensure that the wheel grasps the ground at any time, So as to ensure the steering and braking function of the vehicle and improve the safety of vehicle driving.

Because there is no strict requirement on how often shock absorbers need to be replaced, it is easy for car owners to ignore the shock absorbers. Generally speaking, when driving about 80000 km, even if the shock absorbers are not broken, they need to be replaced. This is because there is wear and aging inside the shock absorbers, although it is impossible to see whether the shock absorbers are damaged from the appearance, But we will obviously feel that the comfort of the car is not as good as before. For example, the handling becomes very poor when braking and cornering. A large part of the reason is that there is a problem with the shock absorber.

If the shock absorber leaks oil, it will make the car have no shock absorption effect. For example, if one side shock absorber leaks oil, it will cause the car body to be high and low at the same time, and the car will deviate when driving, which will aggravate the irregular wear of the tires. If the top rubber of the shock absorber is aging and falling off, when the car passes the bumpy road, the shock absorber will collide with other parts of the car, Most of the chassis noise is mainly due to this reason, of course, it may also be caused by other reasons. In addition, if the shock absorber spring is fatigued and softened, the effect of shock absorption and buffering will be greatly reduced. This is because the shock absorber spring can not give the vehicle greater reaction force, and the sinking speed of the vehicle will be faster than normal. Because the shock absorber spring can not fully reduce the body sinking, the hydraulic pressure on the shock absorber will increase, resulting in oil leakage of the shock absorber.

So how to judge whether the shock absorber is damaged?

1. After driving a few kilometers on a pothole Road, touch the surface of the shock absorber with your hand. If you feel that the temperature is not very high, it means that you need to add some lubricating oil. If you find that the temperature is not very high after driving a few kilometers, it means that there is a lack of oil. If it is always cold, it means that there is no resistance inside the shock absorber and the shock absorber is not working properly.

2. When the car is stationary, open the trunk cover, press both sides manually, and then release it. If it is found that the shock absorber is stable after rebounding for a period of time, it means that the shock absorber is good. If it is stable after one or two seconds, it means that the shock absorber needs to be replaced.

3. If the car stops suddenly at a low speed, if the car shakes severely and the comfort is very poor, the shock absorber may have been damaged.