Other Fuel System Hoses Lines/piping, And Fittings problems of the 2011 Mercedes Benz E350

Fuel tank was filled until automatic nozzle shut off was activated. Vehicle was driven home approx 3. 5 miles and parked in the street. Next day there was a puddle of fuel approx 2 ft x 2 ft on the pavement and under the car, just forward of the right rear tire. I watched for several minutes, and noticed it was still leaking at the rate of one drop approx every 2 mins. Thinking that perhaps a hose between the fill port and fuel tank was leaking, I drove it for approx 15 mins, hoping to utilize enough fuel to lower the level of fuel in the tank and/or hose. I returned home and parked the car again. The car was still dripping fuel at the same rate. I moved the vehicle into my driveway to try to ascertain the source of the leak. I jacked it up, removed the right rear wheel, but still couldn't see the fuel tank clearly. So I also removed the plastic windage panel, which covers the undercarriage of the body from front to rear wheel. It was completely fuel soaked at the rear. I also noticed that the exhaust pipe, a possible source of ignition, is routed directly in back of the fuel tank. I researched this problem on the mercedes forum website, and discovered that a defective fuel filter flange, which eventually cracks and allows fuel to leak and puddle on top of the tank, is a common problem. However, it appears that the "build date" of my particular car (08/10) is not covered by mb campaign 2013020002. Yet, the problem is identical to the vehicles which are covered, and received an extended warranty.