Just did the update and fuel filter last night. Thanks to all of the good info on this forum, it wasn't as bad as I thought it would be. The most difficult part of the whole ordeal would probably be the removal of the seat. There were a total of ten bolts anchoring the seat to the floor. I found the tool that Sdanville posted a picture of a couple of posts up at the local Pep Boys for $9.99 - it made the job much easier that it otherwise would have been. Before disconnecting the lines, I depressurized the fuel system by removing the fuel pump fuse (F38) and giving the truck a few cranks to clear the lines - that way I wouldn't have to worry about getting a fuel bath when I disconnected the first line. I used silicone sealant to glue the access plate back on to the floor.

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-98 Polar white ML320 - M1 Package, Bilstein Shocks, H&R Rear Lowering springs, monochrome paint scheme (like MY2000+ ML's), ML430 wheels and tires, MY2002+ halogen headlights