Genuine OEM Audi Additional Coolant Cooler, part number 1K0121212E. This component provides extra cooling capacity for the engine coolant, which is crucial for maintaining optimal engine operating temperatures, especially under demanding conditions. It is integrated into the vehicle's primary engine cooling system. Weighing 1.512 kg, this cooler is designed for efficient heat dissipation. Opting for a genuine OEM coolant cooler ensures precise fitment, correct flow characteristics, and durable construction to prevent leaks and maintain cooling system integrity.