What is the reason for the brake pad noise?

What is the reason for the brake pad noise? How to solve the problem of car brake pad noise?

   In the process of driving, the brake system is very important, so pay special attention to the problem of the brake system, such as the brake pads have abnormal sounds. Brake pads ringing while driving is a big headache. The main factors causing brake pad ringing have a great relationship with the brake pad. When the brake pads reach the warning line or excessive wear, they often emit some abnormal sounds, mainly manifested as sharp metal friction. Next, let's learn about the causes and solutions of abnormal noise in car brake pads.

   Judgment of the cause of brake pad noise

   First you need to distinguish the cause of the noise, whether it is a scream, a muffled noise or a silky scream.

1. If it's screaming

   First of all, check whether the brake pads are running out (alarm sounds). If it's a new film, check to see if there's anything caught between the brake disc and the disc.

2.if it is a dull sound

   Most of the problems are brake calipers, such as the wear of the movable pin, the spring flake off and so on.

3.if it is a sound of Silky cries

   Then there are more problems, calipers, brake discs, brake pads may have problems.

If the sound is continuous, first of all, check whether there is a drag brake, poor caliper reset will cause the disc and the disc for a long time friction, under certain conditions will emit abnormal sound.

   Check again for foreign objects stuck between the disc and the disc. If it is a new brake pad, it depends on whether the brake disc is slotted, because local friction will cause abnormal noise. If there is no problem with the disc, consider whether the brake pads are too hard, or the silencer is installed incorrectly.

   If it rings when you're braking, it's mostly because the brake pads are too hard.

   When the maintenance technician replaces the new brake pad, the chamfer of the new brake pad can be ground, which can reduce the abnormal sound of the new brake pad and the brake pad running-in process.

    In summary, the brake is a combination of calipers, brake pads and brake discs, and all three are likely to produce abnormal sounds. You can't blame it all on the brake pads. If the problem is not solved, the scope of brake system inspection can be expanded.

 

 

 

Reasons for brake pad noise

1. Excessive wear of brake pads

    The service life of the brake pads is also limited, generally in 60,000 kilometers should be replaced, of course, the replacement cycle of individual vehicles is longer, but the brake pads reach the warning line or excessive wear often emit some abnormal sound, mainly as a sharp metal friction sound, but also has poor braking effect and other performance.

2, brake pad material is too hard

    Because the current original brake pads are generally made of semi-metallic materials, it is easy to make noise in friction with the brake pads.

3, there are foreign bodies between the brake pads

   For the owner, during the driving process, some foreign bodies such as sand and gravel are brought into the brake pads or brake discs, which will produce abnormal sounds when the car brakes.

4, the brake system installation is not standardized

   This is mainly related to the spacing between the brake pad and the brake disc and the tightness of the nut.

 

Solution to brake pad noise

1. Excessive wear condition

   For excessive wear of brake pads, the owner should go to the 4S shop or repair shop as soon as possible to replace the brake pads, abnormal sound is not a big problem, the braking effect is a great impact.

2. Material hardness condition

   This generally occurs in ordinary models, the owner can take to replace the brake pads, you can replace the NAO formula brake pads, low-metallic brake pads or ceramic brake pads, these brake pads generally do not produce abnormal sound state, but do not replace the soft brake pads.

3. Foreign bodies exist

   The owner can go to the repair shop to clean the brake disc, which is generally mainly attached to the brake disc, and rarely affects the brake pad

4.Installation irregularities

   For this situation, it is generally more troublesome, it is recommended that the owner do not carry out repairs by himself, it is best to go to the repair shop or 4S shop for debugging.