There are many vehicle maintenance items, but the maintenance of the brake system is often overlooked by some people. However, the maintenance of the brake system is actually very important, because it is related to traffic safety, not sloppy. The maintenance of the brake system is generally cleared to adhere to the brakes The grease, brake oil and other dirt on the metal parts such as discs and brake pads can lubricate and protect the moving metal parts of the brake system, thereby eliminating brake tremors, reducing brake noise, improving braking performance, and prolonging the use of brakes. The role of life.
To see the meaning of the topic, when the user carries out car maintenance in the 4S shop, the 4S shop maintenance personnel sands the brake pads with sandpaper. In general, this is abnormal sound of the brake pads. The 4S shop maintenance personnel generally recommend the user. Replace the brake pads or simply remove the brake pads and sand them with sandpaper, but this does not belong to the tire maintenance project.
The composition of the brake pad is metal, metal uneven spread will form a metal hard spot on the surface of the brake pad, this hard spot will shorten the life of the brake disc. In addition, the brake pad in the vehicle during the process, with the brake disc for a long time Friction, smooth contact surface, resulting in a slight drop in braking force, grinding rougher, increase brake force. But it is not recommended to regularly maintain the brake pads, as long as the brake pads do not have eccentric wear, no abnormal sound of the braking process, can be used with confidence.
What needs to be reminded is that casually grinding the brake pads not only does not achieve the so-called maintenance function, but may cause danger. After the brake pads are mounted on the vehicle, friction and brake discs are basically perfect fit, and random grinding will make brake pads and brakes. The degree of fit of the disc is reduced, and the brake distance will become longer when you just get in the car.
If a 4s shop removes the brake pads and uses sandpaper, it will not be expensive to charge 100 yuan for working hours. It is necessary to remove the tires and brake pads to dispose of the brake pads. Anyone who may ask this question mistakes 4S shop charges according to the brake system maintenance, 4S shop brake system maintenance prices are almost 500 yuan up.
