Is it necessary to replace the fallen sound insulation cotton under the Civic chassis?
3 Answers
It is necessary to replace the fallen sound insulation cotton under the Civic chassis. The sound insulation cotton can reduce the noise transmitted to the car during driving, making the ride more comfortable. Here is some extended information: 1. Introduction to sound insulation cotton: The sound insulation cotton has good thermal insulation effect. After being pasted inside the car hood, it can effectively prevent the high temperature of the engine from being directly transmitted to the hood, thereby protecting the paint on the hood surface and avoiding the foggy vision caused by the hood on rainy days. 2. Functions: After sound insulation is applied to the doors, the hollow cavities inside the doors are effectively filled, making the sound of closing the doors softer. After sound insulation is applied to the front and rear covers, firewall, and floor, the deafening valve sound of the engine is filtered out. Most of the tire noise and road noise are suppressed at low speeds, and there is still some room for improvement in speed. The stability of the car is greatly increased, and the shock absorption and cushioning performance are significantly improved. It reduces and effectively alleviates the metal fatigue of the chassis, extending the service life of the car body.
I think if the sound insulation cotton under your Civic's chassis has fallen off, it's necessary to replace it with a new one. As someone who frequently repairs cars, I can tell you that when this cotton falls off, it significantly increases road noise, making driving loud and uncomfortable. Over time, the noise not only becomes annoying but may also expose the chassis to rain or debris, accelerating rust or wear. This is especially true on rainy days when water accumulates, making chassis components more prone to corrosion and damage. The cost of replacing the sound insulation cotton isn't high—usually just a couple hundred yuan—and the installation at a repair shop is quick. If you drive frequently, ignoring this issue could affect the car's overall lifespan. I recommend checking with a repair shop as soon as possible to prevent minor problems from becoming major ones. Replacing it early saves you trouble, maintains the car's quietness and protection, and makes driving much more enjoyable.
I drive very economically, but I still replace the sound insulation mat under the Civic's chassis when it falls off. After detachment, the noise increases significantly, making a constant humming sound on the highway, which affects my rest and work. More importantly, it may allow small stones or dirt to fall into the chassis, and long-term accumulation can damage the wiring or cooling components. Not replacing it can save some money, but the savings aren't worth it, as rainwater leakage could potentially cause a short circuit or fire. Getting a new one installed at a professional shop is not expensive, costing only a few hundred dollars including installation fees, which is more cost-effective than replacing the entire chassis. I've experienced something similar before—delaying repairs led to higher costs later. So, for the sake of both safety and savings, handling it promptly is a wise choice.
