Spark Plug Replacement: ML 320

[Ron in SC]

I found most of the answers to my questions when I used the search for this topic but I still have a few.

1-When changing the left (driver's side) plugs is it necessary to remove the fender liner to access them and use the 17mm Hazet wrench to remove the boots?

2-If you take the coils off do you do that first and do you do that to be able to use the wrench more easily against the valve cover?

3-If you take the coils off will it then be not be necessary to remove the fender liner?

4-When removing the coils are there any special precautions that need to be taken to avoid damaging them? (If never dealt with cars without distributors)

5-What is the torque specification for the fasteners that hold the coils in place?

thanks, ron