I found it easier than some of these entries lead you to believe. I did the plugs only in about 1.5 hours. Its 12 plugs, some of the coil packs need to be removed (its obvious) I did not need to remove any fender components as stated in some threads. Some of the plugs were a bit tighter than I expected but came out with a little work. Make sure you have a good plug socket with the rubber plug holder inside as some of these are done by feel more than sight.

I did mine at 102K and like the Doc says I should have done wires as well, I'll wait another 10K. I also did the fuel filter and cleaned the throttle body, big difference in gas mileage and performance, the electrodes were worn down to nothing!

Read the other posts on this and good luck.

__________________
John
2001 ML 320
1988 560 SL
2009 Toyota Tundra TRD
1992 400 E (sold '07) (bought back, '13)
2008 ML 350