Genuine OEM Audi Timing Chain, part number 059109229AA. This critical engine component is responsible for synchronizing the rotation of the crankshaft and camshaft, ensuring precise valve timing for optimal engine performance and efficiency. It is located within the engine's timing system. Weighing approximately 1.13 kg, this metal chain is built for durability. Choosing a genuine OEM timing chain ensures exact specifications, material strength, and proper tensioning for reliable and long-lasting engine synchronization.