Genuine OEM Audi Engine Oil Cooler, part number 057117021M. This crucial component is designed to reduce the temperature of the engine oil, ensuring it remains within optimal operating parameters for effective lubrication and engine protection. It typically integrates into the engine's oil circulation system, often near the oil filter housing. Constructed from durable metal with a finned design for efficient heat dissipation, it weighs approximately 1.49 kg. Using a genuine OEM oil cooler guarantees proper heat exchange efficiency, correct fluid connections, and resistance to pressure and corrosion, which are vital for engine longevity.