3
Remove the sill cover, secured with plastic screws and clips, or carefully prise it away to reveal two 10mm bolts, which secure the bottom of the wing to the sill. Undo both of these bolts.
Remove the sill cover, secured with plastic screws and clips, or carefully prise it away to reveal two 10mm bolts, which secure the bottom of the wing to the sill. Undo both of these bolts.