The Genuine VW / Audi Drive Belt Kit - 178166 is a comprehensive kit of products designed to service the drive belt in a car. This kit includes various components such as tensioners, pulleys, and belts, which are essential for maintaining the proper operation of the drive belt system in a vehicle. These components are specifically designed to fit and function in Volkswagen and Audi models, ensuring a perfect fit and optimal performance. The kit is a convenient and cost-effective solution for replacing worn or damaged drive belt parts, allowing for a smooth and efficient driving experience.