Other Fuel System Tank Filling/charging problems of the 2005 Mercedes Benz CLK500

I've started noticing a very strong smell of gasoline coming from the driver's side rear wheel well after filling up the car. The gas fill door is on passenger side. In doing some research on the web, it's come to my attention that there are many other people with my make and model with the same problem. Also, a class action suit was filed for the s class and e class models of mercedes that were having this same gas fumes issue after filling up the tank. Mercedes offered an extended warranty of up to 15 additional years for the affected cars. They acknowledged that it was a crack in the top of the fuel tank, or in some cases a seal on a vent hose that was the problem. I've learned that my model of mercedes shares the same fuel tank as the other cars mentioned above. I reached out to my local dealer and they said I should call the help center of Mercedes Benz and see if they'd repair my issue too. They told me that my make and model year was not covered. I expressed my concern about the strong gas fumes smell and the possibility of an explosion in my garage should a spark or flame ignite the fumes. They did not seem to care and told me if I was a loyal customer maybe they could do more. I told them that I sure didn't think their response to me was any way to create loyalty. I'm really concerned about this but so far, mercedes has basically told me they will not help. Please help!! sincerely, william s gabhart 502 475 1057 louisville, ky 40204.