Fuel tank screen filter is a unique asset of the Mercedes vehicle that plays a key role in preventing the contaminants from entering the fuel system. Like other filters, it can become clogged over time. It is important to recognize the signs of a clogged fuel tank screen filter, so that you can replace the filter timely and avoid potential issues such as poor acceleration, engine misfiring, engine failure, rough idling, etc. It is recommended to consult a certified Mercedes specialist for the replacement.