Genuine OEM Volkswagen Coolant Hose With Heating Element, part number 03L122062. This hose is a critical component of the engine's cooling system, facilitating the circulation of coolant. It features an integrated heating element to assist with cabin heating. It is located within the engine's coolant circuit. Genuine OEM coolant hoses are constructed from durable materials designed to withstand high temperatures and pressures, ensuring leak-free operation and maintaining the integrity of the cooling system.