Genuine OEM Audi Radiator Coolant Hose with Coupling, part number 4M0122055BD. This vital component is responsible for transporting engine coolant, typically connecting to the radiator as part of the vehicle's cooling system. It features an integrated quick-release coupling for efficient installation and removal. Weighing 0.201 kg, this hose is engineered from durable, heat-resistant materials to withstand high temperatures and pressures. Opting for a genuine OEM coolant hose ensures precise fitment, correct routing geometry, and reliable, leak-free performance crucial for maintaining engine temperature.