Figures..now that the temperature here is Omaha is getting to the 50's and 60's, my problem has ceased to be. One cold morning, I did get it to start right off by cycling through turning the key on and off, to get the priming effect a few times, and it fired right off. Then the next morning, it was already 40 out..so not sure what to think. I will be buying a fuel pressure gauge today...I need one anyway..see what is going on. Good to know the fuel pump isnt located in the fuel tank..thank you nameless Mercedes engineer on that one!