1. Check if the shock absorber is leaking. Look directly at the shock absorber shell or dust jacket when it is not raining or washing the car. You can see it at a glance. Very intuitive.
2. Then there is listening. When driving at a low speed, there will be an awkward sound when the wheels pass the bumps on the road or when there is a slight vibration. The abnormal noise of the shock absorber is different from the abnormal noise of other chassis, which is very dull. If it is the front shock absorber steering wheel, there is a clear sense of shock. Find an experienced driver to be able to accurately determine which suspension is issued.
3. Press the top of the suspension part of each wheel by hand, such as pressing the front and rear fenders. The defective shock absorber is hard pressed. This is a symptom of the shock absorber leaking to the later stage. This can only be judged by an experienced maintenance technician.
4. If the shock absorber fails, only replace it, and there is no way to repair it.