Is Soundproofing the Car Fender Effective?

[MacEdward]

Soundproofing the car fender is not effective. The fender, also known as the wing panel, is a type of cover component found on motor vehicles and non-motor vehicles, which can be divided into front fenders and rear fenders. The functions of the fender are: 1. Utilizing fluid dynamics to reduce the drag coefficient, making the car drive more smoothly; 2. Preventing sand, stones, and mud kicked up by the wheels from splashing onto the bottom of the car body during driving. The principles of the fender are: 1. Verifying the fender dimensions using a wheel bounce diagram based on the selected tire model and size to ensure the maximum limit space for front tire rotation; 2. For dynamic considerations, the rear fender slightly arches outward in a convex curve.

[LaAngelo]

I've been driving for ten years and have done sound insulation on the fenders, and the effect is quite noticeable. On the highway, tire noise is reduced by at least half, and the interior is much quieter. Listening to music while driving is also clearer. I used some common soundproofing materials and installed them myself, costing less than 300 yuan and taking about three hours. The key is choosing the right location—the fenders are close to the tires and experience a lot of vibration, so proper insulation can block most road noise. However, don’t expect complete silence, as there’s still wind or engine noise, but overall comfort improves significantly, especially on long drives where your ears won’t get as tired. I recommend combining it with door insulation for better value—spending a little money for a quieter ride is worth it.

[StEden]

I've done quite a lot of car modifications, and wheel arch soundproofing definitely makes a difference. Use thicker soundproofing foam and vibration damping sheets for materials—don't cheap out on low-quality products, as they won't absorb noise well. The DIY steps are simple: first remove the fender liner, clean off any dust, then apply the materials and press them firmly. After treatment, tire noise is significantly reduced, and the body feels more stable during spirited driving, while also protecting components from vibration damage. But don't just focus on the fenders; a full-car soundproofing setup works best, such as adding materials to the chassis or door panels. Costs range from a few hundred to a thousand yuan—it's worth investing a bit to improve daily driving quality.

[McWilliam]

Having worked in auto repair for so many years, I can confirm that fender soundproofing does effectively reduce noise. Tire noise enters the cabin through the wheel arches, and adding soundproofing materials like sound-absorbing cotton blocks the transmission by absorbing sound waves. Choose materials with high sound absorption coefficients, such as butyl rubber layers, and ensure full coverage during installation. The effect is immediate, reducing daily road noise by 30-40%. However, it's not a universal solution—it should be combined with checking tire wear, as overly worn tires will still cause noise. Professional handling ensures long-term effectiveness; avoid amateur work that may leave gaps.