2 bolts come out of the xmember and go through the slam and are held on with 13mm nuts
take the lights out
undo the bolts holding the slam to the inner wing
wiggle it out
a new one will slide in if you are careful
really easy job
remember to make sure bonnet shuts properly with the bonnet catch mechanism totally removed as this way if you get it wrong its easier to adjust than when bonnet jammed shut and cable wont pull
you also adjust the bolts on the bonnet to hinges slightly to make sure it sits right to the wings,be careful these bolts break like chocolate and and if they are the internal hex type easily chew up if you use the wrong tool