New cars or new brake discs will have a running-in period. During the running-in period, it is inevitable that there will be some abnormal noises, which will be eliminated after a few hundred kilometers. When emergency braking, the brake pedal will make a continuous "bang bang" sound, and sometimes there will be a jumping phenomenon, indicating that the ABS system is activated, which is a normal sound.
At this time, it is enough to step on the brakes hard to the bottom, but only for vehicles equipped with ABS systems. If it is a screaming sound, the first thing to check is to ignore the fact that the Transmission Pulley is almost out of use (the alarm plate is ringing). If it is new, check whether there is any foreign matter between the brake disc and the brake pad. If it is muffled, it is mainly a problem with the brake caliper, such as the wear of the active pin and the shedding of the spring plate.
1. Most of the working time of the brake is during the forward driving process. If the Transmission Pulley wears for a long time in one direction, some burrs will be generated on the reverse surface. When the brake is stepped on in reverse gear, the burrs rub against the brake disc and produce noise;
2. The brakes of new cars have abnormal noises, which will not occur after the running-in period; if there is noise caused by foreign matter, the owner can go to the repair shop to clean the brake disc. Most of the key points are attached to the brake disc and rarely affect Transmission Pulley;
3. For noise caused by improper installation of the brake system, it is recommended that car owners go to the 4S shop to adjust the spacing and nut tightness; if the reverse brake makes noise, the Transmission Hard Parts can be disassembled and polished, or replaced.
1. Most of the working time of the brake is during the forward driving process. If the Transmission Pulley wears for a long time in one direction, some burrs will be generated on the reverse surface. When the brake is stepped on in reverse gear, the burrs rub against the brake disc and produce noise;
2. The brakes of new cars have abnormal noises, which will not occur after the running-in period; if there is noise caused by foreign matter, the owner can go to the repair shop to clean the brake disc. Most of the key points are attached to the brake disc and rarely affect Transmission Pulley;
3. For noise caused by improper installation of the brake system, it is recommended that car owners go to the 4S shop to adjust the spacing and nut tightness; if the reverse brake makes noise, the Transmission Hard Parts can be disassembled and polished, or replaced.