What is the reason for the abnormal noise of Mercedes-Benz R320 on bumpy roads?

[CarolineFitz]

Mercedes-Benz R320 abnormal noise on bumpy roads is caused by the aging and hardening of the shock absorber top rubber and transmission system failure. Shock absorber top rubber aging and hardening: The connection between the car's shock absorber and the body usually has rubber, which is called the shock absorber top rubber. The function of this rubber is to provide cushioning for the body and reduce vibration. Over time, the rubber will age, and the aged rubber will harden, so when driving over some bumpy roads, the body will make creaking noises. The solution to this problem is to replace the shock absorber top rubber. Transmission system failure: Some of the noises from the chassis are emitted by the transmission system, such as the half-shaft ball cage, differential, and the central drive shaft of rear-wheel-drive vehicles. There are also many rubber components in the chassis, which are designed to improve comfort. Over time, the rubber will age, and the aged rubber will harden. Once the rubber hardens, it can no longer provide any cushioning or shock absorption, causing the chassis to make noises when driving over some bumpy roads.