Can soundproof cotton be added if the transmission has abnormal noise?

[MacMolly]

If the car is still new, there is no need to add soundproof cotton because the abnormal noise may be due to the running-in period, and the noise will disappear after the running-in period; if it is an old car, soundproof cotton can be added to isolate the noise. Soundproof cotton has good thermal insulation effects: Soundproof cotton has good thermal insulation effects. After being pasted inside the car hood, it can effectively prevent the high temperature of the engine from directly transferring to the hood, thereby protecting the paint on the hood surface and avoiding the hood from steaming up and affecting visibility during rainy days. Soundproof cotton extends the service life of the car body: If soundproof treatment is applied to the chassis, using the good sound absorption and vibration reduction effects of soundproof cotton adhered to the chassis will effectively reduce chassis vibrations and eliminate metal fatigue in the chassis.