Hi ellsy66
There are 3 or 5 10mm bolts that fix the undershield of the bumper.You will need to remove headlights and indicators along with plastic cover above rad fans (2 small torx screws) and prise the plastic trim out (plastic clips).
Each wheel arch splash guard will need to be removed/pulled to one side and there should be a 13mm bolt running through a bracket into the bumper.On each inner wing approx 2-3 " in there is a small torx screw that holds the wing in.
Then its just a case of giving it a good tug from the front and off it comes

If i have this right item 72 is the bolt/screw that holds the bumper and item 71 is the little torx screw
Dont worry about items 2-3-4-8-11 they will stay attatched to the bumper
Hope this helps
Colin