How long does the shock absorber generally last? Do you replace the shock absorber for 140,000 kilometers?

Automobile shock absorber (including shock absorber spring) is the most important component in the vehicle's shock filter system. It absorbs the vibration and impact caused by the uneven road surface when the vehicle is running, so as to provide a good Ride comfort. Once the shock absorber is damaged, the vehicle will experience excessive turbulence and swaying during driving. In severe cases, it may even have a great impact on driving safety.

To sum up, the car shock absorber is very important whether it is in terms of the guarantee of the driving texture and the safety of the vehicle. So under normal circumstances, how long is the life of the shock absorber? If the vehicle has traveled 140,000 kilometers, do I need to replace the shock absorber?

How long is the general life of automobile shock absorbers?

As far as normal conditions are concerned, automobile shock absorbers do not have a fixed service life. As long as the shock absorber has no oil leakage, internal rubber aging, cracking, etc., it can be used forever.

Of course, after the vehicle has reached a certain service life, it is essential to regularly check the working condition of the shock absorber (generally when the vehicle is runningmileageWhen it reaches 100,000 kilometers, it should be checked regularly).

About the inspection of the common damage of the shock absorber

Abnormal sound:If the shock absorber makes abnormal noise when the vehicle is driving on a bumpy road section, it is most likely that the shock absorber is damaged.

Oil spill:Check the shock absorber through the wheel arch with a flashlight, whendiscoverWhen there is oil leakage outside the shock absorber, it indicates that the shock absorber has been damaged.

Loose chassis:When the vehicle is driving on a bumpy road section, if the body posture is found to be excessively bumpy and swaying, it is generally also a problem with the shock absorber.

Should I replace the shock absorber for 140,000 kilometers?

As mentioned above, car shock absorbers do not have a fixed life span, and the premise of replacing the shock absorber is when it is abnormally damaged. Therefore, if the working condition of the shock absorber is still very healthy after 140,000 kilometers, there is no need to replace it.

Expanding knowledge: how shock absorbers work

At present, most vehicles use hydraulic shock absorbers, and their working principle is very simple.

The upper support of the shock absorber is integrated with the piston and the piston rod and is connected to the vehicle body; the lower support is integrated with the pressure cylinder and is connected to the lower control arm of the frame.When the vehicle is in relative motion due to vibration, the piston inside the shock absorber will move up and down, forcingThe hydraulic oil inside the oil cavity flows from one cavity to the other cavity from the piston bypass valve repeatedly, and the friction between the bypass valve hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration. , Which converts the vibrational energy into heat and dissipates it into the atmosphere.

Related hot searches:

1,Can I pass the annual inspection after changing the tooth suspension?

2. Do you need to change the spring to change the shock absorber?

3. Symptoms of broken top glue of shock absorber