Genuine OEM Audi Engine Control Line, part number 04L131552ED. This multi-branched hose assembly plays a vital role in various engine systems, transmitting either fluids or vacuum signals to control different engine functions. Constructed from high-quality, durable rubber and plastic, it is designed to withstand the demanding conditions of the engine bay. Choosing a genuine OEM control line ensures precise routing, correct connector types, and resistance to engine fluids and temperatures, which is essential for maintaining optimal engine performance and emissions control.