How to judge whether the brake pads of the car should be replaced
Brake system is a very important part of the car, and the brake pad is an important accessory in the brake system. So how do we judge whether our car brake pads need to be replaced? Next, Xiaobian will tell you how to judge whether the brake pads are replaced. I hope to help everyone.
First look at the thickness of the brake pad. Generally, a new brake pad has a total thickness of about 1.5 cm. If the thickness of the brake pad is less than or equal to 0.3 cm, it has reached its critical point of wear, indicating that you need to replace it. Of course, this is the inspection method that can be carried out only if we have a measurement tool. If there is no measuring tool, it can be given a rough judgment based on the naked eye. If the thickness of the brake pads is found to be less than one-third of the original, then it is necessary to check and replace them in time. If it is lower than the original two-thirds, then the owner also needs to consciously reduce the time to check the brakes next time.
The second is to feel the change in strength when you step on the brakes. If you always feel very hard when you step on the brakes, or feel that the brakes are not as sensitive as before, you need to step on the desired braking effect more than you used to step on. When the emergency brake feels that the pedal position is low and the brake pedal stroke becomes longer, then your brake pads must be checked as soon as possible.
Then there is a less wide-ranging approach, but if you encounter this situation, you must pay attention. That is, when you step on the brakes, the brake pads will make a different sound than before. For example, the metal friction sound when braking lightly, or the sharp metal sound, this situation, to rule out the conventional phenomenon when the new brake pad is running-in period, basically can explain that the brake pad is abnormal, even exceeds the wear limit. . Each brake pad will have a raised wear limit mark. The thickness of a mark is usually about 3 cm. If your brake pad has worn to less than three centimeters, it must be replaced immediately.
Finally, look at the fault warning light on the dashboard. It is important to note that this light is not the brake fault light we understand, but a separate brake pad wear indicator. This light is not available in all models. It will only be available on some mid- to high-end models, and because the warning system has direct sensing of the thickness of the brake pads, and some of the brake pads have been completely worn. The brake oil is therefore extremely degraded, so that the warning light is on. It is too late to remember that it is too late to change the brake pads, so it is not recommended to remind them to replace the brake pads.
If you are not comfortable with your judgment, the most reliable way is to regularly check the wear level of the brake pads. If the critical point of wear is reached, it needs to be replaced in time.
The above is an introduction to the method of judging whether the brake pads of the car are replaced. I hope everyone can understand the method of replacing the brake pads of the car and it will help everyone.