2007 E 350 Fuel filter
 

HI , I need help,
1) I cannot locate the fuel filter on my E350.I do not know where it is located on the car.
2) I have been looking at auto parts web sites, and I have not been able to locate a replacement fuel filter. Stupid Question Does the car have a fuel filter? this is the first Mercedes I have ever ouned.
Thanks for the help, Dennis