Again! toomany MBZ has come to the rescue. Now I do not feel so bad since you helped me with this same thing 3-4 weeks ago. Even the nice kid at the local MBZ dealer kept telling me that my car should only have one O ring until I stepped behind the counter and showed him on the screen. I still have some fuel weepage but no longer from the top of the fuel filter. I need to replace all fuel lines. I know that more than a few of these are original.
Alan
