Genuine OEM Volkswagen Exhaust Valve, part number 0XW109611A. This valve controls the release of exhaust gases from the engine's combustion chamber. It is located in the cylinder head assembly, specifically at position 11. The valve has a weight of 0.052 kg and dimensions of 0.103m x 0.025m x 0.025m. Genuine OEM valves are critical for maintaining the exact timing and sealing required for efficient combustion and engine longevity.