Genuine OEM Audi Coolant Hose Pipe, part number 6R0122157Q. This intricate component is a vital part of the engine's cooling system, designed to carry coolant between multiple engine components to maintain optimal operating temperatures. It is a multi-branched assembly, typically constructed from durable, heat-resistant rubber and plastic. Using a genuine OEM coolant hose pipe ensures the precise routing, correct connection points, and material integrity, which are crucial for preventing leaks, maintaining cooling system efficiency, and protecting the engine from overheating.