Heat maybe the very sole factor that may cause one's precious car to rot in corrosion. Overheating has been the most common vehicle breakdown ever since the use the internal combustion engine. Why? Again we go to heat. The engine is responsible of the burning the air and fuel mixture which does emit a large amount of heat. It is the cooling system's primary job to prevent the engine overheating by transferring this heat through the air. If the cooling system malfunctions, the hot temperature will eventually wear down and ultimately melt the vital parts and components of the engine system. Another important aspect of the cooling system aside from decreasing the fiery engine condition is that it moderates just the right temperature for the engine. The coolant, a heat transfer fluid that flows through a device in the cooling system, absorbs the heat as it circulates around the engine and goes to the radiator where it transfers the heat to the cool air. It is crucial for the engine to maintain a proper temperature degree while running to make it just hot enough to efficiently function. However, there is a particular part which plays a significant role in heat absorption. Also known as coolant-recovery tank, radiator overflow tank, coolant reservoir, overflow tank or canister, the expansion tank proves to be vital in the cooling system. Since coolants are composed of ethylene glycol and anti-corrosion chemicals, they chemically expand when heated. These compounds need a storage space. The expansion tank provides this need for space. Usually made out of clear plastic, the container is connected to the overflow tube from the radiator. The coolant flows to the expansion tank where the air bubbles are removed. By doing this, the coolant absorbs heat much faster and makes sure that the radiator is always full of fluids. It couldn't be stressed more that the engineering of expansion tanks should undergo strenuous and careful testing. Mercedes-Benz is a global leader when it comes to the development of the automobile and its systems and components. Inside every Mercedes vehicle, one would not be surprised to find a well-built Mercedes-Benz expansion tank connecting to the overflow tube. The S-Class, is the multi awarded line of sedans of Mercedes Benz that was considered as probably the safest car ever built. In its current generation, the S-Class features an amazing design of cooling system that well compliments its engine system. The Mercedes expansion tank greatly contributes in the cooling process thereby enhancing the performance of the engine. Automobile owners, especially those of Mercedes, immeasurably value the importance of the Mercedes expansion tank. Taking the risk of overheating simply is not acceptable. However since the tank does handle extreme heat, it is subject to deterioration. Without a functioning expansion tank, the coolant would flow out of the overflow tube and be lost from the cooling system onto the street. If this happens, the possibility of overheating may just be lurking ahead. Replacing worn out expansion tanks with the Mercedes Benz expansion tank will not only keep your engine cool, it will also add a dramatic change in performance.