Other Fuel System Hoses Lines/piping, And Fittings problems of the 2010 Mercedes Benz GLK350

Our car has developed a serious fuel leak on the drivers side rear. When the tank is filled to capacity, or near capacity, a serious gasoline odor develops. The other night when we discovered this problem, our entire home became engulfed in these fumes and we had to remove the car from the garage and put it out on the street. Also, when we moved the car out of the garage, we noticed gasoline was dripping from under the car and formed trail of gas all the way out into the street. The leak is caused by a faulty fuel filter/filter housing. This particular part is what was recalled and replaced by Mercedes Benz in the 20011 and 2012 model years. Our car is a model year 2010, but it has the same fuel filter (part #2214700390 from autohaus az)) and if you shop for a new one, you can see it is the same for the years 2010 thru 2012. The fuel filter is at the top of the tank and can easily be replaced by removing the right rear passenger seat. However, the odor and fumes at times will enter the cabin of the vehicle, and if the car is parked on an incline, leaning from right to left, I am sure gas can travel across the undercarriage and over the hot exhaust.

This last two weeks, we noticed that there's a strong smell of gas. There's no leak that we could see but the odor is strong that gives us headaches. We are doing a research on why this is happening but the only thing we see about it online is about the link between gas tanks and gas filter. Please help.