You can just change the bulb. Pop off the wiring harness, then it's a twist lock plastic piece and the bulb comes out. Replacements are about $6 at Walmart
how to change headlight on 1999 Mercedes e350
You have to remove the whole lense assembly. There are 3 nuts on the back, and 1 bolt on the top.
There are two pull up tabs on the back of the headlight. You just have to pull these up and the whole light section will come out. Replace the bulb as normal.
To change a headlight on a 1999 Acura TL open the hood and locate the bulbs which are plugged into the housings. Loosen the bulbs and pull them off. Replace them.
Acquire a new headlight. Take old headlight out. Place new headlight in. Voila
There aren't headlight covers, it all one unit. One of my lens was cracked and I had to replace the whole unit.
See Here: http://wiki.answers.com/Q/How_do_you_change_a_1999_vw_head_lamp
1999 Isuzu trooper
You will need to remove the front grill and the whole front bumper to access the headlamp housing. It's quite easy once you've done it.
How do you replace a 1999 Ford Escort headlight bulb?"
there is 3 10mm bolts on each headlight all you have to do is loosen then all and they will pop loose and there own no bumper removal necessary
If it's the same as my 1999 2 door 4x4. You have to remove the grill. Then the headlight modules are right there and easy to get too.