How to see the thickness of the brake pad
Brake pads are key components in the automotive brake system, and their thickness directly affect driving safety. This article will introduce in detail how to judge the thickness of the brake pads and provide relevant data references to help car owners replace the brake pads in time to avoid safety hazards.
1. Standard value of brake pad thickness
The thickness of the brake pads will gradually wear out with use. Here is a comparison of the thickness of the new and old brake pads:
| Brake pad status | Thickness range (mm) |
|---|---|
| Brand new brake pads | 10-12 |
| Mild wear | 6-8 |
| Moderate wear | 3-5 |
| Severe wear (replacement required) | ≤2 |
2. How to check the thickness of the brake pad
1.Visual inspection method: Observe the thickness of the brake pad through the gaps in the wheel hub. Some models need to be removed to clearly see the tires.
2.Using measurement tools: Use a caliper to directly measure the remaining thickness of the brake pad to ensure accurate data.
3.Listen to sound judgment: When the brake pads wear to the limit, a sharp metal friction sound will be made when braked, which is a warning from the brake pad wear indicator.
4.Vehicle Instrument Tips: Some high-end models will display warning messages through the dashboard when the brake pads are too thin.
3. The impact of different driving habits on brake pad wear
The wear speed of the brake pads is closely related to driving habits:
| Driving habits | Brake pad life (10,000 kilometers) |
|---|---|
| Driving calmly | 5-7 |
| General driving | 3-5 |
| Driving fiercely | 1.5-3 |
4. Brake pad replacement suggestions
1. When the brake pad thickness is ≤2 mm, it must be replaced immediately.
2. It is recommended to check the thickness of the brake pad every 20,000 kilometers.
3. When replacing the brake pads, it is recommended to check the wear of the brake disc at the same time.
4. After replacing the brake pads, it is necessary to run in for 200-300 kilometers to achieve the best braking effect.
5. Frequently Asked Questions
Q: What should I do if the left and right brake pads are worn unevenly?
A: It may be caused by the poor return of the brake sub-pump, so it is recommended to inspect and repair the brake system in time.
Q: Is it normal for the brakes to become soft after replacing the brake pads?
A: It is a normal phenomenon, and after running-in, it will restore normal braking feeling.
Q: Can I only replace the brake pads on one side?
A: Not recommended, it must be replaced in pairs to ensure braking balance.
6. Summary
Regularly checking the thickness of the brake pad is an important measure to ensure driving safety. Through the methods introduced in this article, car owners can easily determine whether the brake pads need to be replaced. It is recommended to develop the habit of regular inspections to avoid braking failures caused by excessive wear of the brake pads.
If you are not sure about your judgment, it is recommended to go to a professional repair shop for inspection. The technicians will use professional equipment to provide you with accurate test results.
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