What is the replacement standard for brake disc wear?

[SanCecilia]

The replacement standard for brake disc wear is when the wear exceeds 2 millimeters. The replacement steps are as follows: 1. Open the engine compartment and check if the brake fluid level is at the normal position to avoid overflow during the brake pad replacement process; 2. Use a jack to align with the support points under the car, raise the car until the tire is completely off the ground, and then remove the tire; 3. Use a wrench with a socket to remove the bolts of the brake caliper and directly take off the brake pads; 4. Push the brake piston back to its original position and install the new brake pads; 5. After installation, check the brake fluid level, press the brake pedal firmly several times, and then add brake fluid again to ensure the fluid level is at the max mark.