What Causes Brake Disc Noise in Cars?

[DianaLynn]

The causes of brake disc noise in cars are: 1. Noise caused by brake disc deformation: When the thickness of the brake disc changes in the circumferential direction, the brake disc needs to be repaired and ground; 2. Severe brake disc wear: Severe wear on the brake disc can form deep grooves on the disc, and friction between the brake disc and the edges of the grooves can cause noise. If the grooves are not deep, grinding the edges of the brake pads may suffice. If the grooves are very deep, replacement is necessary; 3. Foreign objects between the brake pads and brake disc: Small stones or water films can cause noise, which usually disappears after driving for a while. Alternatively, the foreign objects can be removed manually; 4. Missing or damaged fixing screws of the brake disc can also cause brake noise; 5. New cars during the break-in period or after replacing brake pads may produce some noise, which is normal and will disappear after the break-in period.