What does the inner lining of the rear fender of a car mean
The inner lining of the rear fender of a car is a semi-circular thin plate located above the rear wheels along the vehicle body, usually made of plastic or similar materials. Its functions include:
Protective function
Prevent sand, mud and other debris lifted by the wheels from splashing onto the bottom of the vehicle and the interior of the cabin, reducing damage to the chassis and sheet metal parts.
Sound insulation and noise reduction
It isolates the noise generated by the friction between tires and the road surface, enhancing the comfort of driving and riding.
Structural characteristics
It adopts a semi-circular design to ensure that debris falls along a specific trajectory and avoid splashing everywhere.
The materials are mostly plastic (lightweight and low-cost), and some models use special materials such as chopped glass fiber to enhance protection.
The main functions of the inner lining of the rear fender of a car include protecting the vehicle body, preventing dust and mud, reducing noise, and assisting aerodynamic performance.
Protect the vehicle body and chassis
The rear fender lining covers above the wheels, blocking the splashing of debris, mud and other foreign objects to prevent damage to the chassis and suspension system, while reducing the risk of corrosion of the body sheet metal parts.
Dust and mud proof
The inner lining design enables the sand, gravel and other debris lifted by the wheels to flow out smoothly, preventing them from accumulating at the bottom of the vehicle body and keeping it clean.
Noise reduction
By using sound-absorbing materials or special structures, the noise generated by the friction between the tires and the ground is reduced to be transmitted into the vehicle, enhancing the driving and riding comfort.
Aerodynamic assistance
Through smooth line design, it helps optimize the aerodynamic performance of the vehicle body, reduce the wind resistance coefficient, and enhance driving stability.
The repair plan for the inner lining of the rear fender of a car should be determined based on the degree of damage:
Minor damage treatment
If the inner lining only has cracks or small area damage, hot melt adhesive can be used for repair. After disassembly, stick the damaged area with hot melt adhesive. Reinstall it after the adhesive dries.
Severe damage treatment
If the inner lining is extensively damaged or structurally deformed, it is recommended to replace it with a new one. The replacement process includes:
Lift the vehicle chassis and remove the tires
Remove the fixing screws and clips
Install the new lining and restore
Maintenance Precautions
Avoid using brute force to disassemble to prevent damage to the snap or inner lining material
After replacement, check the sound insulation effect and the cleanliness of the chassis to prevent the accumulation of foreign objects
The repair method for the inner lining of the rear fender of a car should be determined based on the degree of damage:
Minor damage is recommended for repair
If the inner lining is slightly damaged (such as surface scratches or small-scale damage), it can be restored to its original state through sheet metal repair, welding, painting and other methods. However, it should be noted that if there are any loosening or deformation issues after maintenance, they need to be re-fixed or adjusted to avoid resonance or abnormal noise.
Severe damage is recommended for replacement
If the damaged area of the inner lining is large (such as over 9 square centimeters), the structure is deformed or the sheet metal cannot be repaired, a new inner lining needs to be replaced. When replacing, pay attention to the disassembly skills to avoid damaging the clips or causing secondary damage.
Precautions
Timely handling can prevent the accumulation of foreign objects such as sand and stones from causing damage to the chassis.
If left untreated for a long time, it may cause problems such as a decline in sound insulation effect and an increase in wind resistance.
Sheet metal repair should be carried out at professional repair points to ensure accuracy and safety.
The inner lining of the rear fender of a car mainly achieves its functions through the following principles:
Dust-proof protection
The inner lining located above the wheels can effectively prevent foreign objects such as sand and stones from splashing onto the chassis and suspension system, thus avoiding damage to the bottom components of the vehicle.
Aerodynamic optimization
The streamlined design reduces air resistance and enhances driving stability. The inner lining and fenders work together to guide the airflow smoothly through the vehicle body, reduce the coefficient of wind resistance, and thereby improve fuel economy.
Heat dissipation assistance
The fender linings of some models guide the airflow towards the engine compartment and braking system through a special structure, assisting in heat dissipation.
Noise control
By using sound-absorbing materials or special structural designs, the noise generated by the friction between the tires and the ground as well as the airflow noise are reduced, enhancing the driving and riding comfort.
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