Genuine OEM Volkswagen Lambda Oxygen Sensor, part number 04E906262EM. This vital sensor is installed in the exhaust system to measure the oxygen content in the exhaust gases. It sends this data to the engine control unit (ECU), which then adjusts the air-fuel mixture for optimal combustion, fuel efficiency, and reduced emissions. With a length of 0.67m, this genuine OEM sensor provides exact calibration and signal characteristics, ensuring precise engine management and compliance with emissions regulations.