Genuine OEM Audi Engine Timing Belt, part number 038109119M. This critical belt ensures the precise synchronization of the engine's crankshaft and camshaft, which is vital for valve timing and overall engine performance. It is located within the engine's timing system, often behind a protective cover. This durable rubber belt, weighing approximately 0.22 kg, features reinforced teeth for reliable power transmission. Using a genuine OEM timing belt guarantees the correct material composition, tooth profile, and tension characteristics, preventing catastrophic engine damage and ensuring long-term reliability.