Genuine OEM Audi Exhaust Gas Temperature Sensor, part number 4G0906088AB. This sensor plays a crucial role in the exhaust system by accurately monitoring the temperature of exhaust gases, which is essential for the engine's performance and emissions control. It measures approximately 0.32 m in length and weighs about 0.056 kg. Opting for a genuine OEM sensor ensures precise temperature readings and robust construction, vital for maintaining optimal engine operation and preventing costly damage.