If the BMW 3 series shock absorber has abnormal noise, check whether your shock absorber is leaking oil, or that there is more dust and oil stains on it than the one on the left. Is the shock absorbing spring damaged in the bumps, resulting in insufficient return force, and can not effectively store kinetic energy to play the role of shock absorption. Accelerating the belt noise means that the belt is loose. Use your fingers to press down the belt on the pulley. If the sag is large, it means the belt is loose. For the above problems, please go to the repair station for further judgment. When passing a larger pit, pay attention to slow down. Otherwise it is easy to damage the suspension parts.
Maintenance of BMW 3 Series shock absorber:
1. Park the car on a flat place. When parking, try to park the car on a relatively flat ground. Don't let the car park for a long time. For example, the car body is pressed on the steps while the car body is on the road. This unevenness is detrimental to the vehicle's shock absorption.
2. Travel slowly when passing speed bumps. In some schools, steep slopes and other places, there are deceleration belts. Vehicles should slow down in advance when they arrive here. Otherwise, not only will it increase the risk, but the excessively fast speed will damage the vehicle's shock absorption.
3. Avoid pulling heavy objects for a long time. If you often use heavy things or passengers on the vehicle, overloading will cause the shock absorber to be overloaded, affecting the elasticity, and easily damage the shock absorber, and it will not be able to reset accurately as before.
4. Check the shock absorber frequently. After driving for a few kilometers on uneven roads, if the shock absorber overheats, it means that the shock absorber is short of oil, and enough oil should be added; if the shock absorber has no temperature, it means that there is no resistance inside the shock absorber, and the shock absorber The device is not working. At this time, appropriate lubricating oil can be added.