Genuine OEM Audi EGR Radiator, part number 03L131512DQ. This component cools hot exhaust gases before they are recirculated into the engine's intake system, reducing combustion temperatures and harmful NOx emissions. It is an integral part of the exhaust gas recirculation system. Weighing approximately 2.89 kg and measuring 0.4 meters in length, this unit is built to precise factory specifications. Using a genuine OEM EGR radiator ensures proper fitment, efficient cooling, and reliable long-term performance for optimal emissions control.