Genuine OEM Audi Exhaust Gas Recirculation (EGR) Valve, part number 038131501AT. This critical component plays a key role in the vehicle's emissions control system by precisely regulating the flow of exhaust gases back into the engine's intake manifold. It is typically located near the exhaust manifold, connected to both the exhaust and intake systems. Weighing approximately 0.73 kg and measuring 0.133m x 0.126m x 0.122m, this valve is engineered for durability and accurate operation. Using a genuine OEM EGR valve ensures correct calibration, optimal emissions reduction, and prevents potential engine performance issues or diagnostic trouble codes.