Does Rust on Car Brake Discs Affect Braking?

[SanAvery]

No, it does not affect braking. Car brake discs are generally made of cast iron, so they will gradually rust when the vehicle is parked or stored for a period of time. This is a normal phenomenon and does not indicate any quality issues with the brake discs. Below are the effects of rust on car brake discs regarding braking: Minor rust: If there is only slight rust on the surface, it can be removed by performing emergency braking while driving. No special treatment is needed, as minor rust on the brake discs will be naturally worn off during normal braking. Severe rust: If the rust is more severe, it may cause vibrations or shaking during braking, such as brake pad vibration, steering wheel vibration or shaking, or body vibration. In such cases, it is difficult to remove the rust, so it is recommended to perform maintenance on the brake discs every two months to prevent excessive rust development.