Genuine OEM Volkswagen Exhaust Gas Temperature Sensor, part number 04L906088DF. This sensor is designed to accurately measure the temperature of exhaust gases, providing vital data to the engine control unit for precise fuel management, emissions control, and protection of exhaust system components. It is typically installed within the exhaust system. Featuring a robust metal probe and a long electrical lead, the sensor assembly measures approximately 0.745 meters in total length and weighs 0.106 kg. Using a genuine OEM sensor guarantees correct calibration and signal characteristics, which are essential for accurate readings and preventing false diagnostic codes.