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How to check the wear level of brake pads?

If you wash your car by hand yourself, it becomes an annoying thing to do at the end of the day, especially when you start cleaning the rims.

Once it’s done, however, it becomes a delightful thing to do.

It is indeed a pleasure to drive your new and shiny car on the road under a beautiful blue sky.

However the next day, when you look at your car that you just washed the day before, you find that the front wheels are dirty again.

What is this all about?

In fact, the dirt you see on the wheels is actually the dust that the car’s brake pads wear down.

These tiny dusts are produced by the brake discs and brake pads rubbing against each other.

When you press the brake pedal, the car’s brake system presses the brake pads and discs together, thus generating friction.

This continuous frictional process creates friction that slows the car down until it comes to a stop.

Brake pads are intentionally designed to wear out more easily than brake discs.

This allows you to replace the brake pads several times without having to replace the discs.

However, sometimes we use the pads for so long that we damage the discs, making it necessary to replace both.

In fact, we can avoid this unnecessary loss if we check the wear of the brake pads frequently.

If the brake pads wear out too much and the effective material of the pads is partially worn out, the base metal material of the pads may come into contact with the brake discs.

Once the metal comes into contact with the metal, you will not only damage the brake disc, you will also put yourself in a dangerous situation.

Of course, you will need to spend more money to get a full set of new brakes for sure.



Brake pads and brake discs rub together to produce braking, and friction will produce sound, and the sound made by brake pads is different according to their different states.

According to this feature, a small metal bump is added to the brake pads, when it comes to almost worn out, a harsh sound will be made when you step on the brake, at this time you should check and replace it as soon as possible.

2. Look

Generally speaking, the thickness of brand new brake pads is around 15mm, after use, about 4 or 5mm will be left for replacement. You can check your brake pads with the following two pictures.


If the brake pads are on the edge of needing to be replaced, then the car will become “weak” when you apply the brakes, which means that the car has a feeling of not being able to brake.

Each brake pad has a raised mark on both sides, and the thickness of this mark is around two or three millimeters, which is also the limit of the thinnest brake discs to be replaced, if the brake pad thickness is already parallel to this mark, it must be replaced.

Therefore, when the brake pad thickness is close to this mark, the owner should always observe the preparation, but in the case of not removing the tires through the naked eye is difficult to accurately observe, now many models on the market in the brake pad is too thin instrument handbrake light position will be prompted, relative self-test is convenient.

Brake pads are a consumable product and there is no fixed replacement mileage, and the same car has different replacement times because of the different usage environments.

Once the brake pads are worn smooth, the consequences are unimaginable, I hope that the officers usually check their cars, driving safety on the road is the first.