What Causes Loud Brake Noise in New Cars?

[Muhammad]

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.

[MacCecilia]

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.

[LeJoanna]

Brake noise? New cars' brake pads usually have a protective coating that can cause high-pitched sounds during friction, just like my SUV did during its first month - always squeaking. It might be because the brake discs and pads haven't fully bedded in yet, plus some high-performance materials are naturally harder. Driving conditions also play a big role - braking after rain or on sandy roads makes it easier for debris to stick to the discs and cause noise. I've tried gently applying the brakes several times to distribute the friction evenly, and the noise gradually reduced. But don't wait too long - if the noise persists or stopping distances increase, get your brake system professionally checked for foreign objects or looseness. Safety first! After a few thousand kilometers, my car became much quieter.

[MacDeclan]

New car brake noise is quite common, mainly due to insufficient break-in of brake pads and rotors or surface contaminants. I've encountered this situation before, and my mechanic friend said there's no need to panic as it's mostly a natural phenomenon. You can pay attention to your driving habits: avoid sudden braking to reduce heat buildup, and pump the brakes a few times before driving to clear dust. If the noise is louder on wet roads, it should subside after driving for a while as the moisture evaporates. Important reminder: Ignoring this issue may lead to wear on brake components and increased stopping distance. If the problem persists after the break-in period, it's recommended to promptly visit a repair shop for inspection rather than risking driving with the issue.