What is the reason for the abnormal sound of Mercedes Benz brakes

There are two reasons for abnormal brake noise. The first one may be that the brake disc of the car has entered rust and other particles on the way of driving, and the friction causes abnormal noise; the second one may be that the car has not been maintained for a long time, and the brake disc has hardened, resulting in abnormal noise.

　　

Car owners should regularly maintain the vehicle to ensure that the braking system is normal and ensure driving safety. The braking system is an indispensable and important component of the car. Now the engine of many cars is in front of the body, resulting in the weight of the entire vehicle body being concentrated in the front, so the burden on the front of the wheel will be greater than that of the rear of the wheel. Besides, the rear wheel of the car is not a transmission wheel, it only needs to rotate with the transmission wheel, so the relative friction generated will be relatively small. Car brakes basically come from the friction with the brake disc, the more friction there is, the worse the aging will be. The front wheel can also be called the driving wheel. No matter what road it is on, the driving wheel is the one that wears the most. It will convert a lot of friction into dynamic friction, allowing it to bear more friction. In the current vehicle braking process, the front wheels are subjected to a stronger braking force than the rear wheels, which is to minimize the braking distance of the car. The front wheel is also a steering wheel of the vehicle. When the vehicle is driving on the road, when turning, the front wheel will slide sideways with the road surface, resulting in serious tire wear.