Genuine OEM Audi Exhaust Gas Temperature Sensor, part number 05C919529C. This sensor is designed to precisely measure the temperature of exhaust gases, providing crucial data to the engine control unit for optimal engine operation and emissions system management. It is typically located within the exhaust system, often before or after the catalytic converter. The sensor weighs approximately 0.074 kg. Using a genuine OEM sensor ensures accurate readings, proper integration with vehicle systems, and reliable operation, which is essential for maintaining emissions compliance and engine efficiency.