The Genuine Porsche Engine Coolant Temperature Sensor (part number 99760642001) is a crucial component of the vehicle's cooling system. This sensor measures the temperature of the engine coolant and sends this information to the engine control unit, allowing it to adjust the fuel injection and ignition timing for optimal performance. It is made by Porsche and is designed specifically for use in their 997 model vehicles. This sensor is essential for maintaining proper engine temperature and preventing overheating, which can lead to serious engine damage.