What Causes the Abnormal Noise in Mercedes-Benz E300L on Bumpy Roads?
2 Answers
Over time, gaps may develop between some parts of the car body, leading to friction among certain components when driving on unpaved roads or during emergency braking, which results in abnormal noise. Below are solutions for the abnormal noise: 1. Body Noise: For body noise, it is recommended to visit a 4S shop to check the tightness of chassis screws and connectors, and inspect whether any parts of the body are rubbing against each other. 2. Window Noise: If the window makes abnormal noise, roll down the glass, clean the rubber sealing strips around the door frame, and use a damp cloth to wipe between the two rubber strips until the dust is removed, which can basically eliminate the noise.
A few days ago, while driving my Mercedes-Benz E300L over a speed bump, I heard a squeaking sound. I suspect it's a common chassis issue. Aging suspension arm bushings or worn shock absorber rubber pads can cause metal parts to rub against each other on bumpy roads, resulting in unusual noises. Due to its emphasis on comfort, rubber components in the Mercedes-Benz E-Class are prone to premature cracking or hardening, especially after covering 50,000 to 60,000 kilometers. Additionally, loose brake guide pins or detached interior panel clips could also be possible causes. I once experienced a situation where a loose trim piece kept rattling on rough roads. I recommend visiting a 4S shop for a comprehensive inspection of the chassis and interior fasteners using a lift—avoid tampering with it yourself to prevent accidents. Regular maintenance, such as lubricating suspension joints, can extend their lifespan, ensuring a stable and smooth driving experience.
