51117385257 Grille | Ventilation System Compliance

Designed specifically for BMW 5 Series G30 and G31 Touring models with medium/low trim configurations, the 51117385257 Grille features reinforced polymer construction with integrated aerodynamic geometry. The optimized hexagonal pattern balances airflow requirements with protection against road debris for critical cooling components. Precision-engineered mounting points ensure exact alignment with factory bumper contours while maintaining structural stability during high-speed operation. The surface texture replicates OEM grain patterns while incorporating hydrophobic properties that repel water and contaminants.

Computational airflow analysis informs the venturi-shaped channels that accelerate cooling efficiency by 19% compared to conventional designs. Integrated retention clips provide vibration-resistant installation without specialized tools, while alignment guides ensure precise positioning relative to headlight assemblies and parking sensors. The modular framework allows direct replacement without bumper disassembly, with thermal-resistant formulation maintaining dimensional stability across extreme temperature variations. Geometric optimization reduces aerodynamic drag while increasing radiator airflow volume during demanding driving conditions.

Material Engineering

• • Base Polymer: Glass-fiber reinforced PA6
• • UV Stabilization: 1800+ hours
• • Thermal Range: -40°C~125°C
• • Impact Resistance: 28kJ/m²
• • Hydrophobic Angle: 118°

Verified Applications: G30 5 Series G31 Touring Medium Trim Low Trim 2017-2020 Models
OE Cross-Reference: 51117385257 51110054457 51-11-7-385-257 51 11 7 385 257 51.11.7.385.257 7385257 Stoßfänger Gitter