Shock absorber is an important part of driving safety. Its main function is not to support the weight of vehicle body, but to suppress the vibration of spring and absorb the energy of road impact. If the shock absorber is damaged, it will not only affect the driving safety, but also affect the riding comfort, and may cause the wear of other parts. How often do you replace the shock absorbers? Do you have to wait until the shock absorber is broken? How can we judge whether the shock absorber needs to be replaced?

How often is the shock absorber replaced

First of all, it should be clear that the shock absorber is a part that is replaced regularly and can not be used permanently. Many novice drivers do not know this.

So how long is it reasonable to replace the shock absorber?

Generally speaking, under normal circumstances, about 80000 km, even if the shock absorber is not damaged, the shock absorber should be replaced. At this time, the internal part of the shock absorber has been worn and aged. It is impossible to see whether the shock absorber is damaged from the appearance. However, we can clearly feel that the comfort of the car is not as good as before, and the handling of braking and cornering is poor. A large part of the reason is the reduction The shock absorber is worn. If the shock absorber often passes through the road section with poor road conditions, the shock absorber wear will be aggravated. It is necessary to check and replace the shock absorber in advance to avoid driving safety problems. It should be noted that the shock absorber should be replaced in pairs on both sides to ensure the optimal performance of vehicle handling and braking.

Secondly, we also need to know what impact shock absorber damage will have on the car.

1. The oil leakage of shock absorber will make the car no shock absorption. If it is unilateral shock absorber oil leakage, one side of the body will be high and the other side is low. When driving, the car will deviate, which will aggravate the irregular wear of tires;

2. When the rubber on the top of the shock absorber is aged and falls off, the shock absorber will collide with other parts, which will cause abnormal noise. Generally, the abnormal noise of chassis is the reason, and other parts may be damaged;

3. If the damping spring is weak and the spring tension is insufficient (the support force to the body will be reduced, which will directly affect the height of the vehicle body), the damping and buffering effects will be greatly reduced, and the hydraulic pressure on the shock absorber will increase, which will lead to oil leakage of the shock absorber.

So how can we judge whether the shock absorber is damaged?

1. Put the car on a flat place, press both sides manually with the trunk cover open, and then release it. If the vehicle stops after 2-3 jumps, it will be regarded as failure.

2. Put the car on a flat place, press down the bumper (it's OK to press the front part of the car), and then release it. If the car has 2-3 jumps and rebounds, it means that the shock absorber fails to work.

3. If the car shakes violently and the human body feels uncomfortable when the car is suddenly braked at a low speed, the possibility of shock absorber damage is very large.

4. After driving for about 10km on the road with poor road conditions, the car stops and touches the shock absorber shell by hand. If the temperature of the shell does not have a certain amount of heat, or it is always cold, it indicates that there is no resistance inside the shock absorber and the shock absorber works abnormally.

Finally, to replace the shock absorber, you need to know what kind of shock absorber is good.

At present, there are two kinds of shock absorbers on the market. One is the original shock absorber, including damping core, spring, bearing and tray. The other is produced by other manufacturers, which is generally single core, and other components such as spring and bearing are provided separately. According to my experience, the best way to replace the shock absorber is to replace the original factory. The quality of the shock absorber is guaranteed, and the after-sales service is also good.

Shock absorber not only affects the ride comfort, but also is an essential part of safe driving. Therefore, both novice and old drivers should know how long to replace the shock absorber and how to judge whether it is necessary to replace the shock absorber, so as to ensure the good performance of the vehicle!