I posted this msg on the S/V 40 forum but there is very little interest in there ... So I'm posting here also,because of the great feed back I get on questions about my 90 740 tks .

"I finally got to replace the headlight. I was able to get the old one out,with some difficulty but since it was broken I was able to pull it out. Now to put in the new one : I got an English Haynes manual for the car and it says to "slacken and remove the two mounting bolts,working underneath the car,on the side of the headlight to be replaced" .Since there is a picture I was able to locate these bolts. However the next step is "undo the the screw securing the relevant end of the front bumper to the wing,then free the bumper and move it forward slightly to gain clearence required for headlight removal/replacement".
This is the part I can not figure out...Where is the this particular screw securing the front bumper to the wing? What is the wing? Is that the plastic bumper cover or the bottom black piece of plastic (front spoiler?)? Tks for yr input."