What Causes the Abnormal Noise When a New Car Turns?

[McAxel]

New cars producing abnormal noises when turning is a normal phenomenon because the vehicle has not yet undergone the break-in period, and some internal components have not achieved 100% compatibility. Once the new car completes the break-in period, the abnormal noise should naturally disappear. If the noise persists, it may indicate a quality issue with the car, requiring inspection and repair at a 4S dealership. If necessary, you can file a claim for compensation. Modern mid-to-high-end cars and heavy-duty vehicles commonly use power steering systems, which not only significantly improve driving ease but also enhance road safety. The power steering system is formed by adding a power-assisted steering device that relies on the engine's output power to the mechanical steering system. Passenger cars typically adopt a rack-and-pinion power steering mechanism.

[SanAlexander]

I’ve been hearing strange noises when turning my new car recently, like creaking or squeaking sounds, which is quite annoying. A new car shouldn’t have such issues—it could be loose suspension components, such as shock absorbers or stabilizer bar links not being tightened properly. Under the load of turning, these small parts may rub and produce noise. Uneven tire pressure or poor break-in of new tires are also common causes of similar sounds. Additionally, if there are assembly defects in the differential or ball joints of a new car, abnormal noises may become noticeable during turns. I recommend checking the tires first: verify if the pressure meets the standard (the recommended values are in the manual), and test whether the noise worsens when turning on uneven roads. During the break-in period (around 1,000 km), the noise might disappear, but don’t wait too long. If the sound persists or worsens, visit the dealership immediately to prevent suspension issues from affecting handling stability. Early detection and resolution ensure safe driving. Repairs are usually free under the new car warranty, saving future trouble.

[Valerie]

Oh, new car turning noises are mostly technical issues, but the explanation is quite simple. Causes include loose ball joints in the steering system or improperly tightened chassis components, where assembly tolerances lead to uneven force distribution and creaking sounds during turns. The differential also operates during turns, and if there's excessive clearance or improper installation, it can produce noise. Tires play a significant role too: large pressure differences or uneven wear can cause abnormal sounds. Factory quality checks don't catch everything, so these minor issues are common. I recommend owners pay attention to the conditions when the noise occurs: does it happen during low-speed turns or high-speed? On smooth roads or bumpy surfaces? This information helps technicians diagnose faster. Check if the underbody panels are loose or if the wheel nuts aren't tightened sufficiently. Avoid DIY disassembly as it may damage new components; visit the dealership for professional suspension and steering system diagnostics to resolve issues early, ensuring smooth operation after break-in and preventing safety risks from escalating.

[DiJosephine]

New car turning with abnormal noises must be taken seriously, safety first. Potential risks include suspension failure or steering issues affecting control; noise sources such as ball joint wear or differential defects can expose safety hazards during turns. Neglecting may lead to further component damage or even accidents. New cars generally have long warranty periods, so immediate inspection at the 4S store is crucial. Avoid sharp turns before repairs to prevent exacerbating the problem. Recording the frequency and location of the noise aids professional diagnosis, ensuring a worry-free journey.