im having a hard time also with my E90.
I tried to jam a towel rapped flat head screw driver at the larger end, and tried to pry the grill out, but it will not work!
how do u "jiggle" it??? there is not enough room to jiggle.
Also i cannot find a way to insert a towel rapped flat head screw driver (even a small one) between the metal and the plastic grill. there simply is no enough space. I dont want to force it and damage the paint/car...
how did u guys do it? simply grabbing the damn thing and pull up will not work. it looks like im going to bend the whole front quarter panel!!