The Genuine VW / Audi Control Arm Kit - 178120 is a comprehensive set of products designed for use in a car. It includes three essential components that are crucial for the proper functioning of a vehicle's suspension system. These components are control arms, ball joints, and bushings.

Control arms are an integral part of a car's suspension system, connecting the wheels to the chassis. They help to absorb shocks and vibrations from the road, providing a smooth and stable ride. Ball joints, on the other hand, are small spherical bearings that allow the control arms to move up and down while maintaining a connection to the wheels. They also help to support the weight of the car.

Bushings are small rubber or polyurethane components that are placed between the control arms and the car's frame. They act as a cushion, reducing noise and vibrations while also providing flexibility for the control arms to move.

This kit is specifically designed for use in VW and Audi vehicles, ensuring compatibility and optimal performance. It is a genuine product, meaning it is made by the original manufacturer of the car, ensuring high quality and reliability.