Genuine OEM Audi Temperature Sensor, part number 06E919501D. This sensor accurately measures the engine's coolant temperature, transmitting critical data to the engine control unit (ECU). This information is vital for managing fuel injection, ignition timing, and fan operation to ensure optimal engine performance, fuel efficiency, and emissions control. It features precise calibration for reliable and consistent readings. Genuine OEM sensors are manufactured to exact specifications for accurate temperature monitoring and engine protection.