How do you change spark plugs in Nissan Tiida/Versa?

I took the plastic cover off the top of the engine today to get to the spark plugs, but the plastic intake manifold goes right over the top of the engine block obscuring the coilpacks. Is the only way to change the sparkplugs to remove the intake manifold? Any advice on where I can download a workshop manual for free will earn best answer.How do you change spark plugs in Nissan Tiida/Versa?
I will send my 3 year old grandchild over and he is not cheap either,follow where your leads take you its childs play send me $300 fool