Genuine OEM Audi Fuel Return Hose, part number 4M0201216E. This hose is a vital part of the fuel system, responsible for safely returning excess fuel from the engine back to the fuel tank. It ensures that the fuel system maintains optimal pressure and prevents over-pressurization. The hose weighs 0.101 kg and measures 0.28m in length. Using a genuine OEM fuel return hose guarantees the correct material composition, resistance to fuel chemicals, and precise routing geometry, preventing leaks and ensuring the long-term integrity of the fuel system.