Brake pads are very important. Old drivers call them the protector of people and cars. Therefore, the braking effect is very important. To ensure a good braking effect, the brake pads must be used and maintained correctly. The working principle of the brake is relatively simple. In fact, it is the friction between the brake pads and the brake discs (drums) and the tires and the ground, which converts the kinetic energy of the vehicle into frictional heat energy and stops the car. If the brakes fail, the consequences may be disastrous. So when should the brake pads be replaced? See what the old driver said.

At present, many cars are equipped with indicator lights for brake pads. If the brake indicator on the dashboard lights up, then the brake pads should be replaced. But not all cars have brake indicator lights. What if there is no brake pad indicator light? In addition to the indicator light, you can also observe the thickness of the brake pads. Generally speaking, the thickness of a brand new brake pad is about 1.5cm. If your brake pads are less than 0.5cm thick, you need to consider replacing them. If there is no indicator light and the thickness of the brake pads cannot be observed, the only way is to go to a 4S shop or auto repair shop for inspection.

In addition to observing the indicator light and the thickness of the brake pads, you can also listen to the sound. The vehicle can brake lightly while driving. If there is a creaking metal friction sound, it means that the brake pads have reached the limit of use, so at this time Check or replace the brake pads in time.

Finally, it can be judged according to the braking force. When you step on the brake, it feels very difficult and soft. As long as you step on the brake deeply, you can brake effectively. When emergency braking is used, the pedal position will obviously be low, and the brake pads at this time have basically failed.

The wear of the brake pads will directly affect the braking effect. Of course, the consumption of brake fluid in addition to the brake pads will also lead to insufficient braking of the vehicle. Therefore, in addition to observing the degree of wear of the brake pads, it is also necessary to pay attention to the brake fluid of the car. The main problem with brake fluid is the lack of brake fluid and the high moisture content of brake fluid. Brake fluid has scales and markings, which can be found in time, but the moisture in the brake fluid cannot be distinguished by the naked eye, and a special detection pen is required for detection. Therefore, it is best to check the brake fluid through a professional shop.

It is no exaggeration that the brakes are the protector of people and cars. Once the brakes fail, if they are not handled properly, it is very likely to cause car crashes. So what should I do if the brakes fail? If the vehicle’s brake fails, the first step is to release the accelerator. Manual gear can reduce the speed by downshifting. When the vehicle speed drops below 60 km/h, try to use the handbrake. The handbrake cannot be pulled in place at one time. Loosen and pull together, gradually slowing down. If it is automatic, then it can also be adjusted to manual mode and slow down by downshifting. If it is an electronic handbrake, you can press and hold the electronic handbrake to brake after the vehicle speed decreases.

The daily maintenance and maintenance of the brakes are very important. If the maintenance is improper, then the brakes are very likely to fail. Once the brakes fail, the consequences cannot be imagined. Therefore, it is very important to do daily maintenance and maintenance. Discover and solve problems in time through observation and inspection.