Is It Normal for a Brand New Car to Be Noisy?
2 Answers
When picking up a brand new car, excessive engine noise is not normal. If such an issue occurs, you should promptly notify the 4S dealership for inspection and repair. Generally, new cars do not have carbon buildup problems. The most likely issue is abnormal spark plug ignition, requiring inspection of the spark plugs and ignition coils' working condition. Excessive noise in a brand new car is not normal. Here is additional information: Sources of car noise: The noise inside the car mainly consists of mechanical component noise (engine noise), friction between the tires and the road (road noise), collision and friction caused by the car breaking through the air curtain (wind noise), external environmental sounds entering the car, and internal noise generated by vibrations of components such as the cabin interior panels. Methods to improve car noise: Engine noise, road noise, and tire noise are all structural noises, primarily caused by vibrations. The most reasonable solution is vibration damping. Adding damping plates combined with sound-absorbing pads can effectively address road noise and tire noise.
When I first got my new car, I was also concerned about the noise. Some noise is normal for a new car, mainly during the break-in period. The engine or transmission system might produce slight unusual sounds when they first start working, just like the car is adapting to its new environment. Tires can also be a source of noise, especially if the road is uneven or the tires are new and need some time to break in. Wind noise becomes more noticeable at high speeds. However, these noises are generally not loud. If it's just a slight hum that doesn't affect daily driving, there's no need to worry. But if the sound is very loud or there's an unusual clanking noise, it might need to be checked—issues like brake disc problems or a loose belt could be the cause. I recommend listening to the sounds before driving. Usually, the noise decreases over time. If it doesn't improve, it's safer to get a quick diagnosis at a repair shop. Safety first, after all.
