The brakes are rusted. Does it matter?
TIME：2020.02.28
A few years, why would the brake disc rust? Many people do not understand why the brake disc will rust, for fear of causing a reduction in braking performance. In fact, most of the brake discs of domestic cars are made of cast iron, which is not rust-proof like the surface of the car body. Moreover, they are exposed to the sun and rain for a long time, and the working environment is harsh, especially if they are parked for a long time, the surface is prone to some rusting. General Brake disc rust is actually a normal phenomenon, and not necessarily related to quality. But there is still some impact on the braking system, but do not need to make a big fuss, these problems owners can handle themselves. If it's just a slight rust, we can remove it by applying continuous brakes as we go, because the disc brakes are applied by friction between the brake calipers and the brake pads, and the rust can be removed by repeated braking, of course, do this on a safe road. This is the "polishing" of slight rust. If the rust is serious, the above method does not apply, brake pedal, steering wheel and other obvious shaking will be found, this situation will have to go to the repair shop to deal with, because the rust is too "stubborn, " Not only can it not be "polished" , it can also be forced to speed up the wear and tear of brake pads. Of course, too much rust, even the repair shop will be unable to do, so the car is often placed in the state of the owner of the brake disc every two months to carry out maintenance, so as not to cause severe rust. Aside from rust, what else do we need to watch out for? In addition to conditions such as rust, which we can easily see, there are two aspects to the inspection of the braking system. The first is the thickness of brake pads, brake pads thin replacement limit thickness of about two or three millimeters, at this limit must be replaced. At present, many models in the brake pad too thin instrument brake alarm light position will be prompted, relatively more convenient self-test. Cars that don't have brakes don't have to worry, either, because the brake calipers can protrude close to a thin thickness, creating a brake squeal to alert the driver. If the drum brake, you can listen to tap the brake at the same time with the "iron rub iron" silk sound, or see the handbrake position higher, the brake pad must be replaced immediately. Another check to keep an eye on is the brake fluid. Change the brake fluid regularly. All brake fluid released from the system should be discarded and not reused. If the brake fluid is dirty, drain and flush the entire system, then fill the main cylinder with the new fluid. If there is a general shortage of brake fluid over a period of time, it may be necessary to check the brake system for any other problems.
