What to Do About Scratches on Brake Discs?
1 Answers
It is normal to have scratches on brake discs. Having some shallow scratches in lines is quite common, and generally, there is no issue as long as the scratch depth does not exceed 0.6 millimeters. The causes of deep scratches include: 1. Only the front or only the rear brake discs have grooves. This situation is usually caused by driving habits or uneven distribution of braking force between the front and rear. 2. Only one brake disc has grooves while the others are normal. This is generally due to material issues or external forces, with possible factors as follows: a. Foreign objects getting stuck between this brake disc and the brake pad, especially when braking hard; b. Uneven force from the brake caliper; c. Manufacturing defects in the brake pad, leading to uneven composite materials, which make the brake pad too hard or contain large metal particles.