Genuine OEM Audi engine breather hose, part number 06E103207AM. This hose is a critical component of the crankcase ventilation system, responsible for routing blow-by gases back into the intake for combustion. It is located within the engine assembly as shown in the technical diagram. Genuine OEM hoses are manufactured with specific heat-resistant materials and precise geometry to ensure a secure, leak-free connection that maintains factory engine vacuum levels.