The role of the car brake system, everyone should be very clear, if the brake system has a problem, it is very dangerous. The brake system of the car is composed of multiple parts and works closely together. The brake disc is one of the most important parts. After the car has been in operation for a while, it will inevitably cause some wear and tear, and the brake disc is the first to bear the brunt, especially some novice friends, who love to step on the brakes. Excessive wear of the brake disc will have a great impact on the brake effect. Then, when will the brake disc be replaced? How to judge whether the brake disc needs to be replaced?

When will the brake disc be replaced?

There is usually no specific standard for the replacement of brake discs, because each person's different driving habits and driving environment will have a great impact on the wear of the brake disc. For example, if the long-distance high-speed train is used, the wear of the brake disc will be relatively small, and the wear of the big-foot brake is sure to be large. In general, under normal circumstances, the next brake disc can usually be used for more than 100,000 kilometers, but when using about 60,000 kilometers, you should check the brake disc once.

How to judge whether the brake disc needs to be replaced?

Since there is no clear replacement cycle, the owners should pay more attention to the brake discs during daily use and inspection, so that they can refer to or determine whether they need to be replaced.

1. Look at the alarm indicator: At present, there are a "brake disc indicator" on the dashboard of many models. Normally, it is also extinguished. When the brake disc is excessively worn or faulty, then Will be illuminated, at this time the owners should check the brake disc as soon as possible, if necessary, timely replacement.

2. Listening to the abnormal sound of the brake: If the driver hears the sound of iron and iron friction when the brake is lightly pressed, it is likely that the brake pad is excessively worn and the friction surface is too thin. In addition to replacing the brake pads, pay attention to the condition of the brake discs, because the abnormal sound usually indicates that the brake discs have been damaged and scratches will occur. If there is still a serious abnormal sound for a long time after replacing the new brake pad, then it is recommended to consider replacing the brake disc.

3. Look at the thickness of the brake disc : Most of the brake discs have a small pit-type wear indicator on the disc surface. When we check the thickness of the brake disc, when it is found that the pit is completely flattened, it means to replace the brake disc as soon as possible. . For brake discs without this indicator, we can use a caliper to measure the thickness of the brake disc. When the total wear on both sides exceeds 3 mm, it needs to be replaced in time.

Well, when the brake discs are replaced and how to judge the brake discs need to be replaced, we will introduce them to you. Everyone saw the introduction of Xiaobian, is there a clearer understanding of the brake discs. Of course, the brake discs can't be replaced in time, but you can't wait until the brake discs are broken. You should pay more attention to it, check it regularly, and develop a good driving habit to reduce the wear of the brake disc.

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