Mercedes-Benz SLK 230 Fuel Filter Replacement | 1998-2004 The filter traps impurities in the fuel. As the filter collects particles, fuel flow is impeded. Labored starting, rough idle and stalling are prominent symptoms of fuel-system problems. A clogged filter also causes the car to run lean, compromising acceleration and power. The fuel filter is the easiest and most-affordable fuel system fix. Mercedes Benz SLK230 Fuel Filter | Auto Parts Warehouse We've got a wide rang of top-quality Mercedes Benz SLK230 Fuel Filter of all the best brands in the industry at an affordable rate. All of our Fuel Filters are guaranteed to fit if you use enter your Mercedes Benz SLK230 into your Year Make Model selector.