The rear brake pads are thinner than the front.
This phenomenon mainly stems from the design and use characteristics of the automotive brake system. The front wheels act as the driving wheels, and because of the engine compartment and heavier weight, the load on the front axle is usually much greater than the rear axle. Therefore, the wear of the front brake pads is much more severe than the rear brake pads, so the front brake pads are designed to be much thicker than the rear brake pads. In addition, the rear brake pads bear more force during the braking process, especially in the rear drive type, the load bearing of the rear bearing is more significant, resulting in the rear brake pads will experience greater wear when braking. In order to ensure that the brake pads can be replaced simultaneously, some car manufacturers will design the rear brake pads to be thinner, and the front brake pads are relatively thick, which looks as if the rear brake pads are worn more seriously.
However, the degree of wear of brake pads is closely related to the frequency of use and the force. Under normal circumstances, the slightly different wear degree on both sides of the brake pads is reasonable, but if there is a significant gap in wear on both sides, it is recommended to carry out the necessary inspection and adjustment of the brake system to ensure driving safety.
How long to replace the rear brake pads?
General vehicles travel to 60,000-80,000 kilometers need to replace the rear brake pads. Of course, the number of kilometers is not absolute, because the road conditions of each car are different, and the driving habits of each driver are different, which will affect the service life of the brake pads. The most accurate is to check the thickness of the brake pads, if the thickness of the brake pads is less than 3mm, it needs to be replaced.
The replacement time of brake pads and brake discs is not fixed, according to the normal driving situation of the car, the front brake pads need to be replaced about 350,000 kilometers, and the rear brake pads need to be replaced about 610 kilometers, which depends on the vehicle driving road conditions, the driver's brake pedal frequency and strength.
Determine whether the brake pad needs to be replaced:
2, listen to the sound, if the brake emits a metal friction sound, this may be the brake pad wear to the lowest thickness, the limit mark on both sides of the brake pad touch friction to the brake disc issued abnormal sound, need to be replaced in time. 3, look at the tips, some models will have brake wear tips, if the brake pad wear too much, will make the sensing line touch the brake disc, resulting in resistance changes, resulting in current, detected signals, the dashboard will have brake pad alarm light tips.
Rear brake pad replacement tutorial
Just follow these steps:
Step one, remove the tire bolts. Before lifting the vehicle, loosen the fastening bolts of all wheels by half a turn, without completely unscrewing them. This is to make use of the friction between the tire and the ground, making it easier to loosen the wheel bolts.
Next, lift the vehicle to remove the tires.
Step two, replace the brake pads. First, connect the vehicle to the driving computer and select "Open the rear wheel brake cylinder" on the brake pad replacement setting interface. Then, depending on your car's rear brake pad type (disc or drum type), go to the auto parts store to buy the same brake pad.
Next, remove the brake drum. Note the locking screws on both sides of the rear axle. Remove the big nut and the rear brake cable. Then, take the back wheel off. Finally, remove the brake drum.
Step three, replace the brake pads. When you remove the brake drum, you will see two brake pads held together by two springs. Remove the old brake pads and install the new ones.
With such a simple operation, you can also easily complete the rear brake pad replacement. Remember to replace the rear brake pads, be sure to check whether the brake system is working properly to ensure driving safety.
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