There are a few signs that indicate it’s time to change your brake discs. Here are some things to look out for:

1. Grinding or squealing noise: If you hear a grinding or squealing noise when you apply the brakes, it could be a sign that the brake pads are worn and the metal backing is rubbing against the brake disc. This is one of the most common signs that your brake disc needs to be replaced.
2. Vibration or pulsation: If the brake pedal vibrates or pulses when you apply the brakes, it could be a sign that the brake discs are warped or damaged. These uneven surfaces on the brake disc can cause vibrations in the brake pedal, which can be felt through the vehicle when braking.
3. Reduced braking power: If you notice that your brakes are not as responsive as they used to be, or that it takes longer to stop your vehicle, it could be a sign that the brake discs are worn or damaged. Over time, the brake disc can become thin or corroded, which can reduce the effectiveness of the brakes.
4. Warning light: Some vehicles have a warning light on the dashboard that will light up when the brake pads are worn and need replacement. This is a convenient way to know when you need to replace your brake disc.
5. Visible wear: If you can see visible wear on the brake discs, such as grooves or ridges, it’s time to replace them. These grooves or ridges on the brake disc can cause the brake pads to wear unevenly and can also reduce the effectiveness of the brakes.
6. Regular Inspection: It’s also a good idea to have your brake discs inspected regularly by a professional mechanic, especially if you notice any of the above signs. They will be able to tell you if they need replacement or if they can be machined to remove the grooves or ridges.

How long do brake discs last?

The lifespan of brake discs can vary depending on several factors, including the type of vehicle, driving habits, and the quality of the brake pads. On average, brake discs can last anywhere from 30,000 to 70,000 miles. However, some brake discs can last longer with proper maintenance and usage.

Driving habits play a significant role in the lifespan of brake discs. For example, heavy braking, frequent driving in stop-and-go traffic, or driving in mountainous terrain can cause the brake pads to wear down more quickly and the brake discs to wear out faster.

The quality of the brake pads also plays a role in the lifespan of brake discs. Higher-quality brake pads can last longer and provide better braking performance, which can help prolong the life of the brake discs.

It’s also important to note that the brake discs can be machined or resurfaced to remove any grooves or ridges, which can extend their lifespan, but eventually they will need to be replaced.

Regular inspection and maintenance of your brakes can help prolong the life of your brake discs, it is important to pay attention to the warning signs that indicate they need replacement and avoid pushing them to the limit.

Conclusion

In conclusion, paying attention to the signs of worn brake discs can save you from potential accidents and damage to your vehicle. Regular inspection and maintenance of your brakes can ensure your safety and prolong the life of your vehicle.