Genuine OEM Audi Exhaust Gas Recirculation (EGR) Cooler, part number 038131513G. This essential component cools hot exhaust gases before they are reintroduced into the engine's intake system, reducing combustion temperatures and nitrogen oxide (NOx) emissions. It is positioned within the exhaust system, typically near the exhaust manifold and EGR valve. Weighing 1.356 kg and measuring approximately 0.298m in length, this cooler is built to precise factory specifications. Using a genuine OEM EGR cooler ensures optimal thermal efficiency, proper flow rates, and long-term durability, preventing leaks and maintaining emission compliance.