What Causes the Noise When Stepping on the Brake During Car Startup?

[EdenLee]

The noise when stepping on the brake during car startup may be caused by the following reasons: 1. Use of low-quality or overly hard brake pads. 2. Presence of sand or foreign objects between the brake pad and brake disc. 3. Severe wear of the brake disc causing direct friction between the small metal pieces of the brake pad and the brake disc. 4. Possible failure of the brake caliper, such as wear of the sliding pin or detachment of the spring plate, which can prevent the brake caliper from functioning properly. Below is more information about the braking system: 1. The car braking system, also known as the car brake system, functions to forcibly decelerate or even stop a moving car as required by the driver, keep a parked car stable under various road conditions (including on slopes), and maintain a stable speed for a car moving downhill. 2. Currently, the front disc and rear drum brake system is widely used, with some models featuring four-wheel disc brakes. Compared to drum brakes, disc brakes are more advanced in technology, lighter in weight, and superior in heat dissipation, braking performance, and adaptability to complex weather and road conditions.