The replacement cycle for car shock absorber parts is not fixed and is affected by factors such as road conditions, driving habits, and the quality of the shock absorbers.

Generally, shock absorbers are replaced every 80,000 to 100,000 kilometers. Some recommend replacing them every 6 years or around 100,000 kilometers. Assuming a car travels 20,000 kilometers per year, this would mean replacement approximately every four years.

However, this varies depending on the car model and driving habits.

Under normal circumstances, shock absorbers should be inspected every two years. If there is no damage or oil leakage, they can continue to be used. However, if the shock absorbers leak oil or suffer physical damage, they must be replaced promptly.

Consider replacing the shock absorbers if certain conditions occur, such as oil leakage or bending/deformation due to collision, accompanied by unusual noises, aging or wear of the pressure bearing causing abnormal vibrations during driving, deformation of the shock absorber springs, or abnormal noise from the wheel bearings.

If you frequently drive aggressively or on rough roads, the shock absorbers may need to be replaced in less than four years. Conversely, if you drive gently and on good roads, the shock absorbers may last longer.

Some car models recommend replacement every 90,000 to 100,000 kilometers, but this is only a suggestion; the actual replacement decision should be based on the condition of the shock absorbers. For general passenger cars, it is recommended to replace shock absorbers every 5 years or 80,000 kilometers. For family cars, which are generally lighter vehicles with less frequent driving, and whose owners tend to be more careful and cherish their vehicles, it's possible to replace the shock absorbers after 6 years or 100,000 kilometers.

Shock absorbers are mainly classified into hydraulic, gas-filled, and variable damping types based on the damping material. Different types of shock absorbers may have different performance and service life, but this is not the main factor determining the replacement cycle.

In short, pay attention to the condition of your shock absorbers, have them inspected regularly, and determine the replacement time based on actual usage to ensure the driving comfort and safety of your vehicle.