Genuine OEM Audi Multi-Ribbed Belt, part number 07L903137M. This belt is responsible for driving essential engine accessories such as the alternator, water pump, and power steering pump. It is located at the front of the engine, wrapping around multiple pulleys. The multi-ribbed design ensures efficient power transfer. Genuine OEM belts are manufactured to exact specifications for precise fit, optimal tension, and long-lasting durability, ensuring reliable accessory operation.