What Causes Loud Brake Noise in New Cars?
2 Answers
Loud brake noise in new cars is a normal phenomenon caused by slight friction sounds generated between the brake disc and brake pads during braking. Below are some related introductions about brakes: Daily Inspection Introduction: Check the brake pads. The effectiveness of braking largely depends on the condition of the brake pads. Therefore, inspecting the wear level of the brake pads is crucial to ensure optimal braking performance. Braking Technique Introduction: When braking, release the brake before the vehicle comes to a complete stop. Continuously pressing the brake can cause a significant impact force at the moment the vehicle stops. The technique is to release the brake once before the vehicle fully stops, then gently apply the brake again until the vehicle comes to a halt.
I just picked up my new car, and after driving only a few hundred kilometers, I heard a sharp noise when braking, which scared me into thinking there was a problem. I talked to the technician at the 4S dealership, and he said that new car brake systems need a break-in period. The brake pad material is new, and friction can cause noise, especially when starting up or in cold weather. Additionally, the brake disc surface might have residual anti-rust oil or dust, leading to friction-related noises. He advised avoiding sudden braking while driving and recommended driving more to let the system break in. Usually, the noise will lessen after about a thousand kilometers. However, if the sound persists or is accompanied by vibration, it’s best to go to the dealership to check if the brake pads are installed correctly and not ignore potential safety hazards. My experience is that most cases are normal, so there’s no need to worry unnecessarily.
