Genuine OEM Audi Air Mass Meter Sensor, part number 06A906473A. This critical component accurately measures the mass of air entering the engine's intake system. It provides essential data to the engine control unit for precise fuel injection and ignition timing. Weighing approximately 0.075 kg, this sensor is designed for direct fitment. Choosing a genuine OEM sensor ensures exact calibration, signal characteristics, and long-term reliability for optimal engine management.