Genuine OEM Audi Engine Camshaft Plug, part number 0P2103113A. This plug is designed to seal an opening in the engine's camshaft area, typically within the cylinder head. It prevents oil leaks and maintains proper lubrication system pressure, which is critical for engine health. This small, round component, likely made of durable plastic or rubber, weighs approximately 0.0076 kg and measures about 2.2 cm in diameter. Using a genuine OEM camshaft plug ensures the correct material, heat resistance, and precise fit for a leak-free seal, vital for protecting internal engine components.