Genuine OEM Audi Feed Heating Hose, part number 4E0819371R. This hose is responsible for transporting heated fluid within the vehicle's heating system, ensuring efficient cabin warming. It is typically located within the engine bay or firewall area, connecting various heating components. Constructed from durable, heat-resistant rubber, it weighs approximately 0.227 kg. Choosing a genuine OEM heating hose ensures precise fitment, correct fluid resistance, and long-term reliability for your vehicle's climate control system.