What Causes Brake Noise in New Cars?
2 Answers
The reasons for brake noise in new cars are as follows: 1. Metal hard spots on brake pads: If there are tiny metal particles on the brake pads, they will produce a screeching sound when braking. You can try slamming the brakes a few times or grinding/replacing the brake pads. 2. Severely worn brake discs: After prolonged use, deep grooves may form on the brake discs at the friction points with the brake pads, causing noise during braking. If the grooves are shallow, grinding the edges of the brake pads may solve the issue. If the grooves are deep, replacing the brake discs is the only option.
Brake squeaking in new cars is quite common. I just picked up a new car recently, and there's always a squeaking sound when I step on the brakes. After talking to a friend who runs an auto repair shop, I learned that new brake pads are brand new and made of harder material. During the break-in period, friction with the brake rotors can cause some noise, especially when starting or stopping. It's more noticeable in humid weather after rain, as moisture evaporation can create a whistling-like sound. If the noise isn't too loud, it usually disappears after driving a few hundred kilometers. However, persistent sharp sounds should be taken seriously—there might be dust stuck between the pads and rotors, or misalignment during installation causing abnormal friction. It's recommended to clean the brake area or visit a professional shop for inspection. Safety should never be overlooked.
