Why does a sedan make a clunking noise when braking?

[DiIker]

The reasons why a sedan makes a clunking noise when braking are: 1. Rust on the brake disc or brake pads; 2. The brake pads are new; 3. Excessive wear on the brake disc and brake pads; 4. The brake pads are installed backwards or are of an incorrect model; 5. Use of low-quality or overly hard brake pads; 6. Abnormal brake caliper or lack of brake fluid; 7. Presence of foreign objects between the brake drum or disc and the brake shoes. The function of the brake is to reduce speed or stop the vehicle. Its working principle is to use the friction between the brake pads and the brake drum, as well as between the tires and the ground, to convert the kinetic energy of the moving vehicle into heat energy after friction, thereby slowing down or stopping the car.