Genuine OEM Audi Engine Timing Chain Guide, part number 07D109509E. This critical component is responsible for guiding the engine timing chain, maintaining proper tension and alignment. It ensures precise valve timing, which is essential for smooth engine operation and optimal performance. Weighing 0.2134 kg and measuring 0.12 meters in length, it is engineered for exact fitment. Choosing genuine OEM guarantees the correct material composition and dimensional accuracy, vital for the longevity and reliability of the engine's timing system.