You can adjust the headlight cover in two directions. One adjustment allows you to set the “up and down” position to get the cover to sit flush with the hood and the fender. Another adjustment allows you to position the cover within its housing and set an equal gap around the cover when it’s stowed.
To make it sit square in its housing you adjust the position and tightness of the torx screws which hold it on. There are two torx screws at the rear of the cover and one on each side.
Lift the hood and remove the two at the rear
Turn on the headlights and then back off to the parking lights position to kill the headlights.
Remove the torx screws at each side
Take off the cover
You’ll see four white screws at each corner of the headlight cradle. By rotating these you can rasie or lower the position of the cover at each corner. Unfortunately this adjustment is trial and error.
Replace the headlight cover and fit the two torx screws on each side. Lower the headlights and see how the cover sits in its stowed position. If it’s square and central refit the rear torx screws and tighten. If not you can open the lights again and ease off the torx screws to adjust the fore and aft position. Again this is trial and error.
The torx screws fit into clips on the housing. Make sure you don’t knock them off as you remove the screws.