Genuine OEM Audi Engine Oil Cooler, part number 420117013E. This vital component is responsible for dissipating excess heat from the engine oil, maintaining it within optimal operating temperatures to prevent degradation and ensure proper lubrication. It is typically located in close proximity to the engine or transmission, integrated into the lubrication system. Weighing 3.169 kg, this cooler features a robust finned design for efficient heat exchange. Using a genuine OEM oil cooler ensures precise fluid flow, correct heat transfer efficiency, and durable construction, which are essential for protecting the engine from overheating and extending its lifespan.