What Causes Brake Disc Rust and Abnormal Noise?

[DelBraxton]

The reasons for brake disc rust and abnormal noise: 1. Slight rust on the brake disc surface: It can be removed by continuous braking while driving, and no special treatment is needed because a small amount of rust on the brake disc will be worn off during vehicle braking. If the rust is more severe, it may cause vibration or shaking during braking, such as brake pad vibration, steering wheel vibration or shaking, or body vibration. Of course, this should be done under the premise of ensuring safety and not affecting public traffic. While driving, lightly apply the brakes to let the friction between the brake pads and the brake disc "polish" the surface. 2. Severe rust on the brake disc: When there is significant rust, it can cause unevenness on the brake disc surface, leading to body shaking during braking. The driver can clearly feel abnormalities in the brake pedal, steering wheel, and body. At this point, it will be difficult to remove the rust, and even if "polishing" is attempted, it may still result in abnormal wear of the brake pads and continued shaking. Therefore, it is necessary to perform maintenance on the brake disc every two months to prevent the rust from becoming too severe.