Genuine OEM Volkswagen Lambda Sensor, part number 06L906265B. This sensor is crucial for monitoring oxygen levels in the exhaust gases. It provides vital data to the engine control unit (ECU) to optimize the air-fuel ratio, ensuring efficient combustion and minimizing emissions. Located in the exhaust system, this lambda sensor's accurate readings are essential for emissions compliance and fuel economy. Genuine OEM lambda sensors are manufactured to exact specifications for reliable performance and longevity.