How do you replace the headlight bulb located on a 1992 Mazda Mx3?
The bulb is a separate unit you can purchase for about $7-$25 depending on whether you get the high end, "white lights" or not. It's kind of an odd change, however there is a white plastic retaining ring that loosens in one direction, about a half turn. Then the whole unit pulls straight out. You then simply compress a plastic pinch style clip and remove the old bulb. When you take the new one out of it's box to replace the old one, make sure you don't touch the bulb with your bare fingers. The oil on your fingers can cause the bulb to crack. Good luck.