AF300C,
Hello, This is Brian Carotenuto. I recently had to have my grille replaced after someone backed into the front of my 300. The process to remove the front bumper cover is not an easy task to undertake, at least for one person to do. There are numerous fasteners that need to be undone or removed. Some of these fasteners are of the "one-time use" only. The fasteners that hold the wheel well splash guards are of that type. They have to either be drilled out or removed by a special tool the dealer has. There are also fasteners under the hood in the vicinity of the grille and a few bolts on either side right around the side marker lights. You also need to remove the belly pan underneath the car as well. There is also an electrical connection that would also need to be disconnected. Once all the fasteners are removed, removal of the front fascia requires two people to avoid scratching the paint or the grille. The process of taking the front cover off took my dealer about 45 mins to an hour of time and the other thing I need to mention is that if you decide to undertake the removal on your own, make sure everything is aligned properly.
Not to try to scare you, but for me, not something I would try to accomplish alone...
I hope this helps.
Sincerely yours,
Brian T. Carotenuto