Mine were a pain in the bum to get out.
The two fog lamp covers were fine to remove, they took about 5 mins, but the centre grille (or shelf as the stealer calles it) was an absoloute pain. and i have the scartches on my body to prove it.
There are about 6 or 7 Clips on the bottom with about 5 on the top. The top need puling down to release and the bottom need pulling up to release.
Once you have released the old ones it is a dodle to do from there.
PS This is done on a facelifted model!
Paul