Why does the Lavida car's brake pads make noise?

[DelJulian]

There are scratches on the brake disc. Root cause: Wear on the brake disc will form deep grooves around the disc. Friction between the brake pads and the edges of these grooves can cause abnormal noises. If the grooves are not particularly deep, the issue can be resolved by grinding the edges of the brake pads to avoid contact with the groove edges. If the grooves are already very deep, it is recommended to replace the brake disc. Solution: When replacing brake pads, always check the brake disc for scratches or wear. If scratches or wear are present, it is advisable to smooth out the scratches or replace the disc. Generally, it is recommended to replace the brake disc once for every two brake pad replacements.