Hella 354983251 Bi-Xenon Adaptive Headlight Assembly Left Side BMW 3-Series F30/F31

The Hella 354983251 is an OEM-quality bi-xenon adaptive headlight assembly designed for the left (driver's) side of 2012-2014 BMW 3-Series F30 sedan and F31 touring models equipped with AHL (Adaptive Headlight) functionality. As an original equipment supplier to BMW, Hella manufactures these headlights to the same exacting standards as factory-installed units, ensuring perfect fit and reliable performance.

Key Features:

• Bi-xenon technology uses a single high-intensity discharge bulb for both low and high beam operation with an internal shutter mechanism
• Adaptive headlight functionality swivels the beam up to 15 degrees based on steering input and vehicle speed for enhanced visibility through curves and corners
• Compatible with BMW's automatic headlight leveling system to maintain proper beam alignment under varying load conditions
• OEM Hella quality construction with rigorous temperature, vibration, and weather-seal testing for long-lasting durability
• Direct replacement for BMW part number 63117338707

This is a complete headlight housing assembly. Xenon bulbs, ballast units, and control modules are sold separately. Professional installation is recommended to ensure proper fit, electrical connections, and headlight alignment. Vehicle coding or programming may be required when retrofitting adaptive headlights on models not originally equipped with this feature.