What is the lower grille cover plate of the front bumper of a car
The lower grille cover plate of the front bumper of a car usually refers to the metal mesh structure component located below the front bumper and at the front of the engine compartment. It mainly undertakes core functions such as air intake ventilation and engine protection.
Function and Structure
Youdaoplaceholder0 Protective function : It covers the front part of the engine compartment to prevent external foreign objects (such as sand, gravel) from damaging internal components during driving.
Youdaoplaceholder0 Ventilation and heat dissipation : Provide air intake channels for engines, air conditioners and other systems to ensure operational efficiency.
Youdaoplaceholder0 Brand LOGO : Some models' metal grilles incorporate the brand logo or unique design to enhance visual recognition.
The differences from other components
Youdaoplaceholder0 Front bumper : It is a structural component of the vehicle body and mainly serves the function of collision buffering. The grille cover plate belongs to the intake protection component of the engine compartment.
Youdaoplaceholder0 Deflector : Some models are equipped with separate deflector plates to reduce lift during high-speed driving, which are usually installed closer to the ground below the bumper.
If disassembly or repair is required, it is recommended to contact a professional institution for operation to avoid damaging the vehicle structure.
The lower grille cover plate of the front bumper of a car (also known as the lower guard plate of the front bumper) has multiple functions, mainly including
Core protection function
Youdaoplaceholder0 Mechanical protection : It can resist the impact of flying sand, stones and hard objects from the road surface on the oil pan, engine and chassis components, reducing the risk of damage to key components caused by bottoming accidents (especially for new energy vehicle models, it can simultaneously protect the battery pack).
Youdaoplaceholder0 Foreign object isolation : Prevent mud water, snowmelt agents, and corrosive liquids from entering the engine compartment or chassis area to avoid rusting of wiring harness joints and contamination of precision components.
Driving performance optimization
Youdaoplaceholder0 Aerodynamic optimization : The rationally designed guard plate can guide the airflow under the chassis, reduce driving wind resistance and lower wind noise, thereby enhancing high-speed stability and NVH performance.
Youdaoplaceholder0 Structural support : The guard plates of some models adopt an integrated design, which can disperse the impact force in minor collisions and serve as a supplementary structure for the rigidity of the vehicle body.
A material selection strategy based on demand
Choose the appropriate material based on the daily road conditions. For vehicles that travel on unpaved roads for a long time, it is recommended to use high-specification guard plates to reduce maintenance risks and overall usage costs.
The malfunction of the lower grille cover plate of the front bumper of a car is usually caused by the following reasons:
Common causes
Youdaoplaceholder0 water level gauge malfunction
A damaged water level gauge will cause the system to fail to accurately monitor the water level, triggering the grid motor to start frequently.
Youdaoplaceholder0 bars are clogged
Large solid particles (such as sand, leaves, etc.) get stuck in the grid bars, blocking the water flow and forcing the grid to start abnormally.
Youdaoplaceholder0 rake loose
The gap between the rake and the grid surface is too large, making it impossible to effectively collect the grid debris.
Solution
Youdaoplaceholder0 Clean the bars : Use tools to remove large particles of blockages to ensure smooth water flow.
Youdaoplaceholder0 Adjust the rake : Tighten the adjusting spring to make the rake closely adhere to the grid surface.
Youdaoplaceholder0 Maintenance of water level gauge : If the water level gauge malfunctions, the sensor needs to be replaced or the circuit repaired.
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