Genuine OEM Audi Fuel System Vent Valve, part number 06D133400A. This critical component regulates the venting of the fuel system, ensuring proper pressure balance and efficient fuel delivery while controlling evaporative emissions. It is typically integrated within the fuel system's vapor management components. Constructed from durable brass, it weighs 0.01744 kg and measures 0.029m x 0.015m x 0.015m. Choosing a genuine OEM vent valve guarantees the correct calibration and material integrity for reliable fuel system operation and compliance with emission standards.