The Genuine VW / Audi Cylinder Head Valve Kit - 178153 is a comprehensive set of products designed specifically for use in a car's cylinder head valve system. This kit includes a variety of components that are essential for maintaining and repairing the valve system, ensuring optimal performance and longevity of the engine.

The kit contains four different objects, each serving a specific purpose in the valve system. These include valve seals, valve springs, valve retainers, and valve locks. Each of these components is crucial for proper functioning of the valves, which control the flow of air and fuel into the engine.

Valve seals are small rubber or metal rings that create a tight seal between the valve stem and the valve guide. This prevents oil from leaking into the combustion chamber and ensures smooth operation of the valve.

Valve springs are essential for controlling the movement of the valves. They provide the necessary force to open and close the valves at the right time, allowing for proper air and fuel intake and exhaust.

Valve retainers are small clips or rings that hold the valve springs in place. They prevent the springs from becoming dislodged during operation, which could cause serious damage to the engine.

Valve locks are small pins or clips that secure the valves to the valve stem. They ensure that the valves do not become loose or fall out of place, which could lead to engine failure.

Overall, the Genuine VW / Audi Cylinder Head Valve Kit - 178153 is a high-quality and reliable set of products that are essential for maintaining the valve system of a car's engine. It is designed to fit specific VW and Audi models, providing a perfect fit and ensuring optimal performance.