Genuine OEM Audi Coolant Hose, part number 05L122157CR. This hose is part of the engine cooling system, designed to transport coolant between components. It is located in the engine bay, connecting various parts of the cooling circuit. Constructed from durable rubber and plastic, it ensures reliable fluid transfer. Genuine OEM coolant hoses are manufactured to exact specifications, ensuring proper flow rates and resistance to heat and pressure for long-term engine health.