Ok, just re-aimed my headlights. I have the stock HID system and adjusted my headlights so that the "1" setting on the adjustment wheel is calibrated to where the headlights were aimed at "0" from the factory. This means that my new "0" setting is my semi-highbeam setting, used only to give me a bit more illumination on those long dark moderate-speed highway stretches.
Use & Disclaimer:
- Please do not cross-post this how-to guide / walkthrough and its content (pictures, textual information, etc) to any other forums or boards outside of M**************** without first requesting & gaining my permission.
- This short how-to should not be used as an all-encompassing walkthrough. It is simply a brief description of my procedures for removal & installation, and I am not responsible for any damages or injuries that may result.
Anyhow the following is how to aim the headlights for the Mazda3. All you need is a small flat head screwdriver and a #3 phillips screwdriver. There are two adjustment wheels that are located on the back of the headlight housing protected by white plastic snap-on caps. If you look at the back of the headlight housing, from the fender towards the engine bay, the adjustment knob closest to you is the traverse (left & right) adjustment knob and the one farthest from you is the vertical (up & down) adjustment knob. Using the small flat screwdriver, pry the white snap-on caps off making sure not to drop them. If you just so happend to drop them, just remove the front corner plastic panel / liner under the vehicle and retreive the caps. Here are pictures of where they are located.
Left headlight adjustment knob location
Now for how to turn the knobs...to adjust the headlights, position the phillips screwdriver to mate/mesh w/ the notches in the brass adjustment cup. The notched cup and the phillips screwdriver head basically forms an right-angle gear interface. To adjust the vertical, simply turn the the screwdriver clockwise to aim the beam
DOWN; and turn the screwdriver counter-clockwise and to aim the beam
UP. To adjust the traverse, clockwise for
right and counter-clockwise for
left. The following are pictures of the passenger side adjustment walkthrough.