Why can't the new brake pads stop the car? What's the matter
The replacement of brake pads depends on how long your gasket has been used. Generally speaking, the replacement cycle of the front brake pad is 30000 km, and the replacement cycle of the rear brake pad is 60000 km. There may be slight differences between different models. However, if you hear the sound of your wheels rubbing, you should replace the brake pads regardless of your mileage.
The brake pad is composed of steel plate, adhesive heat insulation layer and friction block. The thickness of the new brake pad and the used brake pad is different due to the different wear degree. The used brake pads and brake discs have a large contact surface, and there are many bumps and strong braking force; The surface of the new brake pad is relatively flat, and the contact surface with the brake disc is small. The braking force will drop, and the new brake pad will not brake.
Therefore, when replacing a new brake pad, it needs to go through a period of running in. Generally speaking, it needs about 200km running in to achieve the best braking effect. The following is the running in method of new brake pads:
After replacing the new brake pads, find a place with better road conditions, accelerate to 100 km / h, and then gently step on the brake to reduce the speed to about 10-20 km / h; Then release the brake and drive for about 5km to cool the brake pad and pad temperature slightly. Finally, repeat about 10 times, basically the same.
