What is the reason for the abnormal noise in the Audi upper control arm bushing?

1 Answers
DavidLee
07/30/25 8:19am
The abnormal noise in the Audi upper control arm bushing may be caused by cracking of the upper control arm bushing, which allows foreign objects or excessive dirt to enter, resulting in noise when steering. Introduction to the control arm: A control arm is a mechanical tool, specifically referring to the multi-link suspension. Through different linkage configurations, the suspension can automatically adjust the camber angle, toe angle, and provide the rear wheels with a certain steering angle during contraction. Working principle of the control arm: The principle involves designing the constraint angles of the connecting motion points so that the suspension can actively adjust wheel alignment during compression. This design offers great freedom, allowing for complete matching and tuning tailored to the vehicle model. Therefore, the multi-link suspension maximizes tire grip, thereby enhancing the vehicle's handling limits.
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