What Causes the Squeaking Sound in the Brakes of a Newly Purchased Car?
2 Answers
The reasons for the squeaking sound in the brakes of a new car are as follows: 1. The newly replaced brake pads and brake discs require a break-in period, which usually takes about 500 kilometers to complete. The brake discs may have been worn unevenly by the old brake pads, while the new brake pads have a smooth surface. Therefore, the initial contact area is small, necessitating a break-in period. It is normal for there to be noise before the break-in is complete. 2. Noise caused by the material of the brake pads: Harder brake pad materials are more likely to produce this type of noise, while softer materials may result in a sharper sound. If this is accompanied by a decrease in braking effectiveness, it can almost certainly be attributed to this cause. 3. Noise caused by improper installation of the brake system: This is more complex and requires inspection and handling at a repair shop.
I just picked up my new car less than a week ago and noticed a slight squeaking noise when braking. At first, I was quite worried, thinking it might be a quality issue. Later, I looked it up and learned that new car brake pads require a break-in period, where the rough surfaces of new components can cause friction noise, which is quite common among experienced drivers. Another factor could be rust on the brake discs after rain or small stones splashed from the road getting stuck in the brake pad gaps, causing noise. I tried driving slowly for a while and braking a few more times to let them adjust, and the noise gradually lessened. If it persists for several weeks without disappearing, I plan to visit the dealership for a free inspection to check for misalignment or foreign objects. Issues within the new car warranty period are easier to resolve, and driving gently—avoiding sudden stops—can reduce wear and prevent excessive noise. In short, most of the time, it’s not a big deal, but safe driving comes first—don’t wait until an accident happens to regret it.
