Genuine OEM Volkswagen Ignition Knock Sensor, part number 06K905377F. This sensor is crucial for detecting engine knocking or pre-ignition, which helps the engine control unit adjust ignition timing to prevent damage. Weighing approximately 0.094 kg, this sensor is designed for durability and accurate signal transmission. Choosing a genuine OEM sensor ensures precise calibration and signal characteristics, which are vital for accurate engine management and long-term reliability.