What Causes the Roewe 350 Intake Pipe to Make a Dull Noise?

[DeNorah]

Some parts may be excessively worn or improperly assembled and adjusted. Here is additional information: 1. Solution: Engine noise indicates that the technical state of a certain engine component has changed. This is mainly caused by excessive wear or improper assembly and adjustment of some parts. Some noises may even predict potential catastrophic damage to the engine. Therefore, when engine noise occurs, it should be repaired promptly to prevent further damage. 2. Wear-induced noise: Door noise is primarily caused by insufficient lubrication, but it is important to determine whether it originates from the door hinge position or internal components such as the window regulator, door lock mechanism, or handle mechanism. For door hinges or limiters, a specialized door hinge and track lubricant should be used. For internal components like window regulators, door lock mechanisms, and handle mechanisms, a specialized door accessory lubricant is recommended. When selecting a brand, it is advisable to choose those commonly used by 4S shops. Avoid using engine oil or ordinary grease, as they may freeze in winter and emit harmful odors that can affect health.