Any component has a life expectancy of the shock absorber is no exception, according to the experiment, the car every driving 1 km, the shock absorber will produce about 1100 times vibration, when your car driving 20,000 kilometers, please check your shock absorber; driving 80,000 kilometers need to replace the shock absorber; in order to you and your familys safety, 100,000 kilometers and above, please replace it.