How often do You Change the Brake Pads?

There is no fixed cycle for the replacement of brake pads. If you go to the 4S store for maintenance, the staff says it's time to replace the brake pads without inspection, which is extremely irresponsible. Only the oil and filter element on the car have a fixed replacement cycle, and all other items need to be checked to determine whether they need to be replaced. Today, I want to talk about the brake pads. Most people change the mileage between 30000 and 80000 kilometers, and the mileage difference is still very large. If you step on the brakes more often, you change them earlier. If you often run at high speed, you step on them less often, and you change them later. However, it is also related to the material of the brake pads. The brake pads of some models are generally replaced earlier, which is caused by the brake pads being too soft.

If the vehicle is not serviced by yourself, go to the 4S store or repair shop, then it is OK to have the technician check the thickness of the brake pads during each service. If the prediction is not enough to drive to the next service, it should be replaced. If the car is self-maintained, how can I check it myself? It's also to look at the mileage first. If the mileage is small, less than 30000 kilometers, you can look at it by yourself. Shine a flashlight on it, and you can see the thickness of the brake pads. If it's more than 30000 kilometers, it's best to check it carefully. The way is to remove the tire and it's clear at a glance. There are two brake pads for each wheel, one outside and one inside. If you only shine a flashlight from the outside, you can only see the outside one. The wear degree of the brake pads inside and outside of most cars is not much different, but some cars are quite different. If one of the brake pads inside is worn to the limit, and the brake pads outside are not worn to the limit, it is not allowed to just look at the one outside at this time.

After removing the tire, the inner and outer brake pads can be seen clearly and accurately, because if you don't have much experience, looking sideways from the outside, the thickness judgment is not too accurate. Generally, it needs to be replaced with 3mm left. If there is 5mm left after removal, it's best to take it apart for the next maintenance. If there is still 1 cm left, it means that the brake pad is still very thick, so there is no need to disassemble it next time. There is an alarm pad on the brake pad. If it is worn to the limit, it will rub with the brake disc and make a sound, so if you forget to check the brake pad and there is a sharp abnormal sound when you lightly step on the brake, you should pay special attention to it. It may be that the brake pad is thin.

The brake pads of most cars wear fast on the front wheels and slow on the rear wheels. The front wheels are replaced almost twice and the rear wheels are replaced once. Because the center of gravity of the car moves forward when braking, the braking force is concentrated on the front wheels, so according to the kilometers, the front wheels should be checked first. Of course, there are very few rear-drive vehicles that will have fairly fast wear on the front and rear wheels.

If you replace it yourself, you'd better buy brand parts from large manufacturers with good quality, rather than vice factory parts with poor quality. The price of sub-factory parts is cheap, and the cost is certainly low, so the quality will be poor. The brake pads with poor quality have poor high-temperature resistance. If the brakes are pressed frequently when going downhill, the performance will be greatly reduced if the temperature is slightly higher, the friction force will be reduced, and the braking force will be reduced. The brake pads with worse quality will also crack or even break, affecting driving safety. After replacing the brake pads, remember to step on the brakes on both feet and drive after stepping on the brakes hard, otherwise, it is very dangerous to have no brakes on the first two feet.

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