Jack up - Wheel off for extra room.
Take out the inner arch liner.
Pop out the indicator.
Under the sill cover, remove screws.
Pop off the cover along the top of the sill cover, remove screws.
Pull away and remove bolts at base of wing.
Open door fully and remove the bolts you can see through the gap.
At the front of the wing, there's 3 10mm nuts holding the bumper on. Remove these and pull the bumper forward to reveal bolts at the front of the wing.
On the inside of the wing, remove the plastic plate at the rear and the screws behind that.
Remove the screws along the top edge of the wing under the bonnet.
It should then lift off.
Refit is reverse.