Can a New Car Be Replaced Due to Abnormal Noises?

[MiaFitz]

It is unlikely to directly replace a new car due to abnormal noises, but the 4S store has the responsibility and obligation to eliminate the fault. During the warranty period, it is necessary to promptly go to the car after-sales service for handling. Abnormal noises from the car body: First, check whether there are unfixed, easily rolling objects in the trunk or rear seats that may cause noise, and eliminate the possibility of noise caused by improperly fixed items. If abnormal noises are found to be caused by friction at the doors or windows, methods such as applying adhesive tape to the doors and windows or padding rubber at the friction points may reduce or eliminate the noises, but these solutions only address the symptoms, not the root cause. If none of the above issues are found, it is necessary to go to a regular repair shop for inspection and troubleshooting. Abnormal noises from the engine: Abnormal noises from the engine indicate that the technical state of a certain mechanism in the engine has changed. This is mainly caused by excessive wear of some parts or improper assembly and adjustment. Some abnormal noises may even predict potential catastrophic damage to the engine. Therefore, when abnormal noises occur in the engine, timely repairs should be carried out to prevent the fault from expanding. Abnormal noises from the transmission: The transmission has many parts, and the causes of abnormal noises are relatively complex. Check whether the noise is related to specific speeds, such as some planetary gears making noticeable noises at around 50Km/h. Check whether the noise is related to certain gears, which is very important for judging transmission faults. If a certain gear makes noise, it is definitely related to the components affecting the transmission of that gear; if all gears make noise, it is often a fault with the constant-mesh gear shaft or insufficient oil in the transmission. Check whether the noise is related to specific actions, such as shifting gears, starting, rapid acceleration, rapid deceleration, turning, etc., which are effective means for judging abnormal noises. Among these, changing speed and direction are particularly important for determining rear axle faults.