How to judge the degree of wear of the brake disc?

The degree of wear on the brake disc directly affects the braking performance and safety of the vehicle, so it is very important to check and replace the worn brake disc in time. Here are a few ways to judge the degree of brake disc wear:

Observe the thickness of the brake disc: the brake disc usually has a minimum allowable thickness, once the thickness of the brake disc is lower than this standard, it needs to be replaced. You can consult your vehicle's owner's manual or make a consultation to determine the minimum allowable thickness of the brake disc.

Check the surface condition of the brake disc: Touch the surface of the brake disc with your hands. If you can feel the depression or unevenness, it means that the brake disc has been severely worn. At this time, the brake disc needs to be replaced.

Observe the color of the brake discs: If the surface of the disc is blue-black or shiny, the disc has overheated and needs to be replaced.

Check the thermal cracks of the brake disc: During the use of the brake disc, thermal cracks will be generated due to high temperature, and these thermal cracks are usually distributed radially on the surface of the brake disc. If heat cracking is evident, then the brake rotors need to be replaced.

In short, to ensure the braking performance and safety of the vehicle, it is recommended to check the wear degree of the brake disc regularly and replace it if necessary. If you are unsure how to inspect or replace brake rotors, seek the advice of a professional technician.