Hi guys, you do not need to remove the bumper but its easier if you remove the front wheels, there is 3 bolts to undo bumper to wing, you can pull the arch liner away and get to these bolts,
Remove the screws that hold the arch liner to the wing, there are a couple of push type clips at the bottom to remove.
Remove skirt it just pulls away,
Remove bolts from the top of the wing under the bonnet, and then just follow the wing and you will see the other bolts to remove, including 2 at the bottom of the wing and one near the top hinge,
Unplug the indicator
Be careful not to scratch the headlight on removal and refitting
Basically from the top of my head that's it