51117331725 Center Grille | Structural Integrity & Aerodynamic Compliance

Engineered for F10N/F11N/F18N chassis configurations, the 51117331725 Center Grille utilizes glass-fiber reinforced ABS with cross-linked polymer coating. Its dual-density molding process achieves 0.08mm dimensional precision across operating temperatures (-40°C to 120°C). The interlocking tab design maintains 0.5mm maximum panel alignment during suspension articulation.

Aerodynamically optimized vertical slats reduce front-end drag coefficient by 0.03Cd compared to aftermarket alternatives. The nano-textured surface finish resists stone chips while allowing 94% airflow efficiency. Pre-installed vibration dampeners absorb 85% of high-frequency road noise above 2kHz. UV-resistant additives prevent 98% of material degradation after 5,000 hours of accelerated weathering.

Manufacturing Specifications

• • Material Composition: ABS+GF25
• • Wall Thickness: 2.4±0.2mm
• • Surface Roughness: Ra 3.2μm
• • Clip Retention Force: 45N sustained
• • Impact Resistance: 9kJ/m²

Certified applications include: F10N 520dX 2014-2016 F11N 525Li Luxury Line F18N 530Le Hybrid F07N 535d GT M-Sport
OE Reference Network: 51 11 7 331 725 BM1038167 7331725 51-11-7-331-725 51.11.7.331.725 518d/520d/525Li