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Should I replace front and rear brakes at the same time?

garryhe

By garryhe
in Factory OEM Auto Parts

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garryhe Apprentice

garryhe

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The replacement of

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is an important part of car maintenance, as the condition of the brake pads directly affects braking performance and safety during travel. When it is necessary to replace worn brake pads, it is generally recommended to replace the brake pads on both the front and rear wheels together.

image.png.9756b8c577930b07c9b5100cfe14f785.png

Actually, in most cases, it is not necessary to replace the brake pads on both the front and rear wheels together. The wear and

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of the front and rear brake pads are usually different. Under normal circumstances, the front brake pads experience greater braking force, resulting in higher wear and shorter lifespan. They typically need to be replaced around 30,000 to 50,000 kilometers. On the other hand, the rear brake pads endure relatively less braking force, meaning they last longer. Generally, they need to be replaced around 60,000 to 100,000 kilometers. When replacing brake pads, it is important to replace them together so that the braking force on both sides is balanced.

image.png.4f43bace2f51f8a82b84fffedde590f7.png

If both the

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and
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have a certain degree of wear, it is also possible to replace all four of them together.

 

When should brake pads be replaced, and how can you perform a self-check on them? Here are the methods:

Check the thickness: A new brake pad typically has a thickness of around 1.5 cm. As they wear over time, the thickness of the brake pad gradually decreases. Professionals recommend that when visually observing that the brake pad thickness is only about 1/3 (approximately 0.5 cm) of its original thickness, it is advisable to increase the frequency of self-checks and be prepared for replacement. Each brake pad has a raised indicator on both sides, with a thickness of around 2-3 mm. This indicator represents the minimum thickness for brake disc replacement. If the brake pad thickness is level with this indicator, it must be replaced.

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suggestions：

It is indeed important to consider individual driving habits and environmental factors when determining the replacement interval for brake pads. While a general guideline is around 60,000 kilometers, it is advisable to have them inspected by a professional technician during regular vehicle maintenance when visually observing that the brake pads are thinning. This is because visual inspection can sometimes lead to errors, and a thorough examination by a qualified mechanic is more accurate and precise.

Listen for noises: If you hear a "squealing" sound when lightly applying the brakes, it could be an indication of the initial interaction between the brake pads and the brake rotor upon installation. In such cases, it is recommended to replace the brake pads immediately because they have already reached the limit where the indicator on both sides of the brake pad is directly rubbing against the brake rotor. When encountering this situation, it is important to inspect the brake rotor while replacing the brake pads. The occurrence of this sound often suggests that the brake rotor has been damaged. Even after replacing the brake pads, the noise may persist. In severe cases, it may be necessary to replace the brake rotor. Additionally, the quality of the brake pads can also contribute to the occurrence of such noises.

Therefore, once unusual noises occur during braking, if it is not caused by the brake pads, it is possible that excessive wear of the brake pads has led to direct contact between the brake pad indicator and the brake rotor, resulting in damage to the brake rotor. The cost of replacing a brake rotor is higher than that of brake pads. Therefore, it is advisable for vehicle owners to develop a habit of regularly observing and promptly replacing brake pads when necessary. This will help prevent potential damage to the brake rotors and ensure optimal braking performance.

image.png.57376038f42894c4d3ed680237ea2d8d.png

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If you feel a lack of braking power when applying the brakes, it is possible that the brake pads have significantly lost their friction. In such cases, it is crucial to replace the brake pads to avoid potential serious braking accidents.

Therefore, it is important to develop a good habit of self-checking. Additionally, decreased braking performance can lead to increased consumption of brake fluid. Therefore, when replacing brake pads, it is necessary to check the condition of the brake fluid as well. and you should change good quality

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