Genuine OEM Audi Fuel Return Line, part number 4G0201227. This flexible hose is designed to safely return excess fuel from the engine back to the fuel tank. It plays a critical role in maintaining correct fuel system pressure and preventing fuel overheating. The line is made from materials resistant to fuel and engine bay conditions. Choosing a genuine OEM fuel return line ensures proper routing geometry, material compatibility, and leak-free operation, which is vital for fuel system safety and performance.

Catalogue entry: FUEL LINE return.