What causes the noise when releasing the car brake?

[FaithLee]

The reasons for noise when releasing the car brake are: 1. Releasing the brake too slowly causes the wheels to be held by the braking system; 2. The brake pads and discs are stuck together due to rust; 3. There are metal particles on the surface of the brake pads. Solutions for noise when releasing the brake are: 1. Release the brake quickly and decisively; 2. Apply butter or lubricant at the connection between the brake pads and calipers; 3. Replace the brake pads to prevent scratching the brake discs. Brake maintenance items include: 1. High-temperature protection for brake pads; 2. Lubrication maintenance for brake calipers; 3. Brake disc cleaning; 4. Brake fluid replacement; 5. Anti-rust lubrication for tire bolts, brake discs, and wheel contact surfaces.

[McMax]

I've been driving for over a decade and have encountered squeaking sounds when releasing the brakes several times. This is usually caused by severely worn brake pads or scratches on the brake discs. It could also be due to humid weather causing rust on components and friction, or excessive dust sticking to the brake pads. If not addressed promptly, the noise will get louder, braking performance will decline, and the risk of rear-end collisions will increase. I recommend going to a repair shop for an inspection first. Replacing new brake pads can solve the problem, which is much cheaper than delaying until major repairs are needed. Now I maintain my car regularly, and the noises have become much less frequent.

[DiGabrielle]

As a safety-conscious car owner, I believe that noise when releasing the brake is not a trivial matter. The most common causes are aging or uneven brake pads leading to abnormal friction, or sticking brake pistons during retraction. Ignoring this issue may accelerate component wear, affect emergency braking distance, and compromise driving safety. It's best to visit a professional repair shop for diagnosis as soon as possible. If it turns out to be loose or worn parts, replace them with new ones. Don't wait until the noise becomes sharp to address it, as that often indicates the problem has reached a critical stage.

[AllisonLee]

My car had the same issue last time, making a squeaking sound when releasing the brake. I asked a mechanic, and it's usually due to uneven brake pad surfaces or dust buildup. Rust or grooves on the brake disc can also cause friction noises. Loud noises might indicate a more serious problem. It's recommended to check the brake pad thickness yourself. If they're worn thin, get them replaced, or try a simple cleaning. Don't worry too much, but don't ignore it either.

[Frances]

From a cost-saving perspective, slight noise when releasing the brakes might be a minor issue. For example, brake dust or minor rust on the pads doesn't require immediate expensive repairs—try using brake cleaner first. If the noise persists or worsens, then consider worn brake pads, where replacing them for just a few tens of dollars may suffice. Remember, prolonged neglect can damage the brake discs, leading to sharply rising repair costs, which isn't cost-effective. Pay extra attention to whether the noise worsens after rain or car washes.