Why is there a creaking sound from the Audi A4 chassis?

[StElias]

A creaking sound from the Audi A4 chassis may be caused by low factory damping calibration or excessive rubber bushings in the shock absorber components. Below are detailed explanations of the possible causes: Low factory damping calibration: Some manufacturers prioritize comfort by setting the shock absorbers to a lower hardness. When the vehicle encounters bumps, the shock absorbers undergo significant compression and rebound, which can create a floating sensation for passengers. Additionally, the vehicle's weight and aerodynamic design may contribute to a feeling of instability at high speeds, affecting handling quality. Excessive rubber bushings in shock absorber components: The damping of connecting parts in the vehicle's suspension components also affects driving quality. These damping components include various rubber bushings on the linkages. The primary function of rubber bushings is to absorb high-frequency vibrations from the road, converting them into heat through continuous deformation and compression. However, if there are too many damping components or they are too soft, excessive changes in the suspension geometry can occur, leading to a perception of a loose chassis for the driver and passengers.