Genuine OEM Audi Multi-Ribbed Belt, part number 07L903137E. This serpentine belt is essential for driving various engine accessories, including the alternator, power steering pump, and air conditioning compressor. It is located on the front of the engine, wrapping around pulleys. Manufactured from high-quality, durable rubber, this belt ensures consistent power transfer and longevity. Genuine OEM parts are engineered to meet strict tolerances for optimal performance and reliability.