What causes the abnormal noise when an Audi A6L passes over speed bumps?
2 Answers
Possible reasons include unreplaced shock absorbers, which can easily lead to abnormal noise, oil leakage, or damage; the shock absorber itself may be leaking or bent, the shock absorber spring may be deformed, or there may be abnormal noise from the wheel bearings. Reasons: It may be due to prolonged driving without replacing the shock absorbers. Shock absorbers endure significant pressure daily, especially on bumpy roads, speed bumps, or when climbing slopes, leading to a relatively short lifespan. This makes them prone to abnormal noise, oil leakage, or damage. Other possible causes include oil leakage or bending of the shock absorber itself, deformation of the shock absorber spring, or abnormal noise from the wheel bearings. In such cases, the relevant parts should be replaced directly. More potential sources of abnormal noise from the chassis: Abnormal noise caused by looseness or deformation of chassis components; noise related to tire tread; noise from internal components of the engine or transmission in the chassis area; noise from connecting parts of various transmission devices; noise from the front and rear wheel bearings, among others.
I've been driving for over a decade, and squeaking sounds when an Audi A6L goes over speed bumps are quite common. It's mostly due to issues with the suspension system, such as leaking shock absorber fluid or worn-out stabilizer bar links. Aging rubber bushings can also produce that creaking noise, especially when the weather is humid. While this abnormal noise might sound alarming, it doesn't necessarily pose an immediate danger. However, it indicates that the chassis isn't as stable when driving over bumps. Ignoring it long-term could accelerate wear on other components and even affect braking distance. I recommend having a trusted mechanic thoroughly inspect the chassis components. Replacing worn-out parts in advance can save a lot of hassle, and avoiding potholes during daily driving can also help mitigate the issue.