BMW E90/E70/E71 Headlight Adaptive Steering Module 7182396 Driver Board Ballast

This 7182396 headlight adaptive module directly replaces the BMW original part number 7182396 with a universal compatibility; it will work once installed. It controls adaptive headlights and ballast supply, allowing headlamps to adjust direction based on steering wheel angle. Compatible with BMW E90, E70, E71 (including 3 Series, X5, X6). After installation, it resolves headlight not adapting, fault codes, or one-sided headlight not illuminating. If the headlight does not steer, dashboard lights up, or the headlights flicker or lag after startup, the module is likely aging and should be replaced.