The Mann Air Filter is one of the functional accessories that you must have in your Mercedes 300SEL. When you have a reliable air filter installed in your vehicle, you are rest assured that the air coming into the engine is clear and clean and will not pose any danger to the engine system. How does the air filter from the Mann brand work? Take note that the typical air filter is a disposable, pleated-paper element with a sealing gasket that is crafted from a synthetic material. Usually, the air filter may come in two types, the panel style used in most fuel-injected cars and the radial style for most carbureted vehicles. Whatever the type is, these air filters are there to screen out the dirt that comes with the air that enters the engine compartment of the automobile. The Mann brand acknowledges the importance of air filters. That is why it offers the reliable B1000-25461 Mann Air Filter. And if you get the Mann filter and then maintain it properly by regularly replacing it, expect that the fuel consumption of your 1990 Mercedes 300SEL can be lowered by 3 to 4 percent! Now, that is real performance and economy! So, better check out our site and see for yourself our online catalog that carries the Mann Air Filter - the air filter that will work well with your 1990 300SEL Mercedes!