you need a new screw,Originally Posted by shogun
Headlight Adjuster Screw
Part # : 63 12 1 378 368 $ 4.95
http://www.bavauto.com//assets/produ...3121378368.jpg
I just replaced two of the adjusters on my newly purchased 1995 525i and boy did I do it the hard way!I took out the headlight housing for easy access to the back of the adjuster when I didn't need to. I also scratched the top of the bumper with the bottom of the light assy. Bummer.
Take the grill off to get access to the adjusters. The local dealer parts guy suggested always replacing the black cup when replacing adjusters. I fully agree as the swap is easier if you split the black cup with some diagonal cutters (two cuts, one on top and one on the bottom to split it) before removal from the headlight assy. This releases the squeeze pressure on the adjuster ball (screwdriver end), allowing a much easier dislocation of the ball head out of the black cap and then the cap out of the headlight assy. I figured this out after trying to push the black cap out of the headlight housing's ear with the ball inside it. I tried to squeeze it out with pliers, a bad move as I cracked the ear!
Once the black cap thingy is out of the way, grab some needle nose pliers and twist the white plastic nut jobby of the adjuster from the front of the car to unlock it from the headlight assy. It should twist a quarter turn or so then release. Take it easy as the white stuff is pretty delicate.
Installation is the reverse of disassembly, minus the cutting of the black cap. Just take care when snapping the adjuster ball into the black cap as the headlight housing is fragile!
While you have the grill off, adjust them lights!