The Mercedes-Benz SL-Class is a grand touring sports car selection that’s been on the market for sixty years. Since there are so many trim levels, ensure you get the most out of your money and understand the Mercedes-Benz SL-Class years to avoid. While most years of a vehicle are fine, there are always some that receive more complaints from customers and thus cost more to keep in ideal shape. This statement is factual for the Mercedes-Benz SL-Class, with some top-notch years and some terrible ones.