Genuine OEM Audi Fuel Gauge Sender, part number 4M0919047. This sensor is responsible for precisely measuring the amount of fuel remaining in the vehicle's fuel tank. It is located within the fuel tank assembly, specifically on the right side, to provide accurate fuel level readings. Weighing approximately 0.11 kg, it measures 0.24m in length, 0.15m in width, and 0.05m in height. A genuine OEM fuel gauge sender ensures accurate and reliable fuel level reporting to the instrument cluster, preventing misreadings and ensuring proper fuel management.