4.9/5 - (142 votes)

How do I check the brake pads of my car?

The brake system is an important braking device of the car, if the brake system fails, we drive without protection, and in the brake system, the brake pads have an important impact on the braking effect, so in the daily maintenance, how to check the car brake pads?


A. Look at the thickness

The thickness of a new brake pad is generally around 1.5 cm, and will gradually become thinner with constant friction in use.

Professional technicians suggest that when the thickness of the brake pad is only 1/3 of the original thickness (about 0.5 cm), the owner should increase the frequency of self-inspection and be ready to replace it.

Of course, individual models do not have the conditions for visual inspection due to the wheel design, and need to remove the tires to complete.

There is a raised mark on both sides of each brake pad.

The thickness of this mark is around two to three millimeters, which is also the limit for the thinnest brake disc replacement.

Therefore, when the brake pad thickness is close to this mark, the owner should always observe the preparation, but it is difficult to accurately observe through the naked eye without dismantling the tires, currently many models in the brake pads are too thin instrument handbrake light position will be prompted, relatively self-test is more convenient.

Second, listen to the sound

If there is a “iron scraping iron” sound while tapping the brakes, the brake pads must be replaced immediately.

The brake pads have exceeded their limits because the limit marks on both sides of the brake pads have rubbed directly against the brake discs.

In this case, when replacing the brake pads, you should check the brake discs at the same time.

When this sound occurs, the brake discs are often damaged, so even if you replace the brake pads with new ones, you still can’t eliminate the sound, and in serious cases, you need to replace the brake discs.

Third, feel the strength

When the brake pads become thin, our braking effect will be affected, at this time you need to press the brake pedal more deeply to achieve the original braking effect that can be achieved by lightly pressing, the first half of the braking effect is obviously weakened, many people feel that their brakes become soft, a little brake can not be, at this time you should check to see if the brake pads need to be replaced.