Genuine OEM Volkswagen Coolant Temperature Sensor, part number 059919501A. This sensor is crucial for monitoring the engine's thermal state by accurately measuring the temperature of the engine coolant. It is typically located in the engine block or cylinder head, or within a coolant hose. Weighing approximately 0.017 kg and measuring 0.058 m in length, this sensor provides precise data to the engine control unit. Using a genuine OEM sensor ensures accurate readings and proper engine management, preventing overheating or inefficient operation.