Why Is There Noise When Braking a New Car?
3 Answers
New car brake pads and discs are brand new, which can cause noise during braking. The noise can be divided into vibration friction and sharp hissing sounds, which will disappear after a few hundred kilometers. Below is an introduction to new car usage: 1. First, the various systems of the new car need to undergo a break-in period. Many components in a new car have not yet reached their optimal state of cooperation, such as the contact points between two gears, where there might be some imperfections at the edges. During the break-in period, these edges will be smoothed out. 2. During the car's break-in period, it's best not to drive too fast, with a maximum speed of 100 km/h recommended. Additionally, it's advisable to drive on various road conditions during the break-in period, such as highways, to allow the new car's components to adapt to different road conditions and achieve optimal performance. 3. Drivers should pay attention to whether there are any faults in the new car while driving, such as water leaks. Although the probability of faults in a new car is low, for safety reasons, it's necessary to check carefully. Once a fault is discovered, it should be repaired promptly. Continuing to drive with a fault may damage the engine.
I just bought a new car not long ago, and occasionally there's a squeaking sound when I step on the brakes, which is quite concerning. My friend told me this is normal during the break-in period, as the surface of new brake pads might have some rust or unevenness, and it should smooth out after driving a few hundred kilometers. However, if the noise persists or gets louder, you should be careful about foreign objects stuck in the brake discs or improper assembly. I looked it up online, and many new cars have this issue. Just have the technician check it during the first maintenance service, and don’t wait until it affects safety to address it. When driving normally, avoid sudden braking or stopping; gradually pressing the brakes helps with the break-in. Developing smooth driving habits is also beneficial for extending the life of the brakes.
As someone who frequently deals with cars, new car brake squealing is all too common. The brake pads and rotors haven't fully worn in yet, and the metal materials produce high-frequency noise during initial friction, especially noticeable after rain or in humid conditions. This sound typically disappears naturally after driving a few hundred kilometers. However, if the noise is accompanied by brake vibration or softening, it might indicate loose brake calipers or insufficient lubrication, requiring professional adjustment. I recommend driving new cars more on gentle routes and avoiding heavy loads or sudden braking, as this can accelerate surface smoothing. If the problem persists, don't hesitate to visit the dealership - warranty-covered solutions for new cars are the most worry-free option.
