The Genuine BMW 4-Piece Control Arm Kit (E39 540i M5) - 459394 is a comprehensive kit of products designed specifically for the E39 540i and M5 models. It includes four essential components, each carefully selected to ensure optimal performance and compatibility with the vehicle.

The first component is a set of control arms, which are crucial for maintaining stability and control while driving. These control arms are responsible for connecting the suspension system to the chassis of the car, allowing for smooth and responsive handling.

The second component is a set of bushings, which are used to absorb shock and vibrations, reducing noise and improving ride comfort. These bushings are designed to fit perfectly with the control arms included in the kit.

The third component is a set of ball joints, which are essential for the proper functioning of the steering system. These ball joints allow for smooth movement and rotation of the control arms, ensuring precise steering and handling.

Lastly, the kit includes a set of tie rods, which are responsible for connecting the steering system to the wheels. These tie rods play a crucial role in maintaining proper alignment and steering control.

Overall, the Genuine BMW 4-Piece Control Arm Kit is a high-quality and reliable set of products that are essential for maintaining the performance and safety of your E39 540i or M5. With these components, you can ensure that your car will continue to run smoothly and handle like a dream.