Genuine OEM Audi Upper Engine Control Chain, part number 07K109231C. This chain synchronizes engine components for proper operation, ensuring precise valve and piston timing. It is positioned in the upper part of the engine's timing system. Weighing approximately 0.286 kg, this genuine OEM chain is manufactured to exact factory specifications for optimal durability and quiet operation, preventing costly engine damage from timing discrepancies.

Catalogue entry: timing cha.