There's a few tricks to changing and adjusting head lights on a 968. Let's
start with the basics:
First of all, getting the head lights to stay up is not really much of a
trick. Simply raise the lights, then turn off the key. The lights
will stay in the raised position, but they will be off. This is really
handy for cleaning as well. At this point, you may also turn off the
parking lights by rotating the head light switch to OFF, however, if you turn
the key back on, the lights will fold back to their OFF position (which could
cause damage if you're in the middle of trim removal or changing the bulb).
Remove
the trim (if so equipped) as in the beginning of the thermostat
replacement procedure. To tilt the head light forward, pull on the locking
pin as I'm demonstrating in this picture. Sometimes it helps to wiggle the
assembly just a little so the pin will disengage. After it's free, the
assembly will tilt forward as shown in the next picture.
After
the assembly is tilted forward, the pin can be re-engaged and that will keep the
head light in a position that's easy to work on. This will also expose the
bottom screws that hold the cover onto the assembly. Remove all three of
these screws (one top, one on each side toward the bottom). Then,
CAREFULLY remove the cover - it's plastic so it will flex some, but just be
careful not to break it! If you're replacing the H4 bulb, then the top
half of the remaining trim ring will need removal. There is a screw
holding each "end" of the section.
The
thumbnail to the right opens the full sized picture that shows the inside of the
head light assembly. To adjust the aiming of the head light, the two long
screws that have little notched wheel on them are used in conjunction to direct
the beam both up and down and side to side. REMEMBER, before adjusting
anything, be sure to lock the lights back into position. Something that's
worth mentioning, too - there are some access hole in the cover that
theoretically you should be able to use a Philips screw driver or something like
that to poke down in there and turn the wheels. I've never tried this
because I've always had to change bulbs (not due to burning out, just trying
different ones) so I take the opportunity to aim the lights while everything is
exposed. To change the bulb, the trim piece must be removed (as stated
above, but I hadn't done that when I took the above picture). The spring
clip presses toward the assembly then spread apart and can then swing up and out
of the way. This spring clip is holding the "plug" that's hooked
to the back of the bulb. As you can see in the following picture (another
thumbnail), this whole thing will unplug, exposing the back of the bulb.
There is another smaller 
spring
clip that holds the bulb into the assembly. The tabs are different sizes
that make sure the bulb is properly aligned. After you finally get all
this apart and put the new bulb in, everything will go back together in no time
:-) Once you've been through it, it's easier the next time. Oh yeah,
installation is reverse of removal <--- classic Chilton/Haynes speak.
