After a week or so of researching and thinking of my options, I decided to opt for replacing the lock ring seal alone since it was the only piece at fault. I could have replaced the whole housing and fuel pump but that just wasn't practical and felt like a waste when it working just fine.
If you have any questions about the process of replacing fuel filter or removing/installing the pump I am more than happy to answer since i now have a better understanding of the layout.
Looks like we will hang onto the ML55 for our family vehicle for as long as we can!
Fuel Pump Housing and Assembly (Non OEM options):
-US MOTOR WORKS USEP8389M
-DELPHI FG1162
Fuel filter options:
-SKP SKKL437
-1634770701
Updated Fuel Lines (Mine were from Amazon, $50 for all 3):
-1634702864
-1634702964
-1634703764
#W163 #Fuel #ML55 #AMG BEAST
