Genuine OEM Volkswagen Lambda Oxygen Sensor, part number 04E906262AL. This sensor plays a crucial role in engine management by measuring the oxygen content in the exhaust gases. The data it provides allows the engine control unit to adjust the air-fuel mixture for optimal combustion, fuel efficiency, and reduced emissions. Weighing approximately 0.14 kg, this sensor is built to exact factory specifications. Choosing a genuine OEM oxygen sensor ensures accurate readings, proper calibration, and reliable performance, which is vital for maintaining engine health and meeting emissions standards.