removing fron't bumper on a nov 2004 e53

[omodos]

hi all , the diys say click Click here for a pdf document on removing 2004 and newer front
bumpers

this link doesn't open much up at all though, what i thought for so long was a metal mesh in the front bumper turns out to be brittle platsic and mine has cracked in places and have got large holes in it that may allow leaves or critters in ,wanted to remove it but cant find the diy...if anyone has any idea what i am talking about is there an easier fix than taking the whole bumper off any replacing the mesh (i guess i could patch it over with other wire mesh but will look bad)