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Why change brake discs and pads

Publié le 9 December 2025 par Pistonelle Vectalia : date de mise à jour de l'article 9 December 2025

What is the difference between a brake pad and a brake disc? A brake disc, or rotor, is the component of a braking system that is attached to the wheel. It is the surface onto which the brake pads attach to slow down or stop the vehicle. A brake pad is the component that makes contact with the brake disc to create friction and slow down or stop the vehicle.

When should you change your brake discs?

Brake discs should be changed when they are worn and no longer able to dissipate heat effectively. Wear on the rotor indicates that the disc has reached its maximum wear point. Worn brake discs can lead to excessive wear on the brake pads. A persistent squealing noise when braking is an indication that it is time to change them.

brake disc

brake disc How often should you change your brake discs? This depends on how often you drive and how often you brake. If you drive a lot and brake frequently, you should change them approximately every 60,000 km. If you use your vehicle normally, the brake discs have an average lifespan of 60,000 to 80,000 km. You can find out more on the Cibema Richard garage website in Rezé. How do I know if my brake discs are worn?A car’s brake discs are usually the first part to wear out. Signs of wear on your brake discs include a pulsing sensation in the brake pedal, a grinding noise when you apply the brakes, and decreased braking performance. If you notice any of these signs, it’s important to have your car serviced as soon as possible.

When should I change my brake pads? There is no definitive answer to this question, as the intervals for brake pad replacement vary.

Brake pad lifespan can vary depending on several factors, including driving habits, vehicle type, and brake pad material. We recommend changing them every 80,000 to 100,000 km.

Brake pads Brake pads How do I know if my brake pads are worn?

Check the brake fluid level in your car's reservoir; if it's low, it could mean your brake pads are worn and need replacing. You can also listen for any unusual noises when you press the brake pedal.
If you hear a grinding noise, it’s a sign your brake pads need replacing. Finally, you can also check the thickness of your brake pads by looking at them from above.

Note: It is not recommended to change the brake pads yourself. Indeed, brake pad wear sensors are installed in most cars and send a message to the dashboard or warning light indicating that the brake pads need to be changed.

Should the brake discs and pads be changed at the same time?

Yes, brake discs and brake pads should be changed at the same time. Brake pads wear down over time, which can cause the brake disc to warp. If the brake disc is warped, it can cause the car to vibrate when braking. 1. What are brake discs and pads?

Brake discs and pads are components of a car’s braking system. Brake discs are the large, flat metal pieces that the brake pads grip to slow the car. Brake pads are small pieces of rubber or metal that press against the brake discs to create friction and slow the vehicle.

2. How do brake discs and pads work?

When you press the brake pedal, the pressure forces brake fluid from the master cylinder to the calipers at each wheel. This pushes the piston outward, which in turn presses the brake pad against the disc. This creates friction, which slows the car.

3. How do brake pads and discs wear out?

Over time, the friction caused by braking leads to slow wear of the brake pads. When this happens, the metal lining of the brake pad wears down, and small amounts of metal can rub against the rotor. This creates a lot of noise when braking and can damage the rotor. If the brake pads are worn, the rotors will need to be replaced so the lining doesn’t rub against them. This can damage both the brake pads and the discs.

When it comes to choosing brake pads for your vehicle, it’s important to understand that there are different types of pads. Metallic brake pads are ideal for high-performance vehicles or driving in extreme conditions, but can be noisy and cause premature brake disc wear. Ceramic brake pads are more expensive but have a long lifespan and produce very little brake dust. Organic brake pads are effective at low speeds but wear faster than metallic or ceramic pads. Semi-metallic brake pads are a compromise between organic and metallic pads, offering superior braking performance but potentially being noisier and causing faster brake disc wear.

Here is a comparison table of the different types of brake pads available on the market: Types of Brake Pads Advantages Disadvantages Metallic (Sintered Metal) High braking capacity, high heat resistance Noisy, premature brake disc wear Ceramic Long lifespan, low brake dust, high heat resistance, high braking capacity

More expensive, less effective in cold weather, can be noisier

OrganicGood low-speed braking performance, low noiseFaster wear than metallic or ceramic pads
Semi-metallicSuperior braking performance to organic pads, high heat resistanceCan be noisier, faster brake disc wear
In summary, each type of brake pad has its advantages and disadvantages in terms of performance, cost, and lifespan. It is important to consider your driving style, budget, and personal preferences when choosing the brake pad that best suits your vehicle. Remember to consult a qualified mechanic for further advice on selecting brake pads for your vehicle.

Pistonelle Vectalia
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