Genuine OEM Volkswagen EGR Radiator Temperature Sensor, part number 03L906529A. This sensor precisely measures the temperature within the Exhaust Gas Recirculation (EGR) radiator, providing crucial data to the engine control unit for emissions management and performance. It is installed directly into the EGR radiator assembly. The sensor assembly weighs approximately 0.037 kg and has a total length of 0.445 meters including its wiring. Choosing a genuine OEM sensor guarantees accurate readings, correct signal characteristics, and seamless integration with the vehicle's complex electronic systems for reliable operation.