Genuine OEM Audi Fuel Temperature Sensor, part number 038906081B. This sensor is responsible for accurately measuring the temperature of the fuel within the system. It provides essential data to the engine control unit for precise fuel mixture adjustments and efficient engine operation. Weighing approximately 0.043 kg, this sensor ensures reliable performance. Opting for a genuine OEM sensor guarantees correct calibration and signal characteristics, which are vital for maintaining engine performance and preventing fuel system issues.