Genuine OEM Audi Engine Throttle Valve, part number 4M0145950B. This critical engine component precisely regulates the amount of air entering the engine's intake manifold, which is essential for controlling engine speed and power output. Weighing approximately 0.44 kg, it is engineered for accurate and responsive air flow management. Using a genuine OEM throttle valve ensures correct electronic calibration, optimal fuel efficiency, and reliable engine performance.