What Causes the Abnormal Noise When Braking Hard to the Bottom?

1 Answers
DePaul
07/30/25 5:49am
Abnormal noise when braking hard to the bottom may be caused by uneven wear of the brake disc, brake pads worn to the limit, or foreign objects between the brake disc and brake pads. Uneven wear of the brake disc: Due to uneven wear thickness of the brake disc, the outer side of the brake disc may be thicker than the inner side or vice versa. When measuring, if the radial runout exceeds the standard value, it will cause abnormal noise during braking, especially when the brake is pressed to the bottom. The force applied to the brake disc and brake pads is strong enough, making the clunking noise more obvious. Brake pads worn to the limit: Generally, brake pads are equipped with wear sensors. If the pads are worn to the limit, a warning will appear on the vehicle's display, indicating that they should be replaced promptly. Continuing to drive will cause friction with the metal at the bottom of the brake pads, producing abnormal noise. In severe cases, it may lead to insufficient braking force or even brake failure.
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