Genuine OEM Audi Mass Air Flow Sensor, part number 06A906461GX. This critical sensor measures the volume and density of air entering the engine, providing essential data to the engine control unit for precise fuel injection and ignition timing. It is typically located in the intake tract between the air filter and the throttle body. Weighing approximately 0.232 kg, this sensor is constructed from durable plastic and metal components. Choosing a genuine OEM MAF sensor ensures factory-calibrated accuracy and signal characteristics, which are vital for maintaining engine efficiency, emissions compliance, and overall performance.