Abnormal sound of brake pads

Abnormal sound of brake pads has always been a problem that makes car owners more distressed. There are many reasons why brake pads have such problems. Whether it is a new car or an old car, there may be abnormal brake sound. Only find the problem. Where is the ability to solve the problem fundamentally, let me talk about the reason for the abnormal noise of the brake pads below.

Reasons for abnormal sound of brake pads

1,Rusty brake cylinder

Do not replace for a long timeBrake Fluid, The brake oil will deteriorate, and the water in the oil will rust with the sub-cylinder, causing friction and abnormal noise.

2,Slow return of brake master cylinder

Abnormal return of the brake cylinder can also cause abnormal sound of the brake pads.

3.New car running-in period

The brake pads and brake discs of the new car are in a brand new state and are still in the running-in period. At this time, there may be some noises. This situation is normal.

4.There are some foreign objects between the brake pads and the brake disc

In the driving process, it is easy to bring some foreign objects such as sand and gravel into the brake pads or brake discs, and abnormal noises will be produced when the car is braking.

5.Brake pad material is too hard

Now the original brake pads are generally made of semi-metallic materials, and it is easy to make abnormal noises when rubbing against the brake pads.

6.Irregular installation of brake system

When the brake system is installed,The distance between the brake pad and the brake disc and the tightness of the nut are not properly adjusted.

7.Reversing brake abnormal noise

Most of the working time of the brake is when the vehicle is driving forward. The brake pads wear in one direction for a long time, which will cause some burrs on the reversing surface. When the brake is stepped on in the reverse gear, the burr and the brake disc friction produce abnormal noise.

solveAbnormal sound of brake pads

For new car brake abnormal noise, it will disappear after the running-in period; for abnormal noise caused by foreign objects, the owner can go to the repair shop to clean the brake discs, usually mainly attached to the brake discs, and rarely affect the brake pads; for brakes For abnormal noise caused by improper system installation, it is recommended that car owners go to the 4S shop to debug the spacing and nut tightness；For the abnormal noise of the reversing brake, the brake pads can be removed and polished, or the brake pads can be replaced.