How to adjust aim HID headlights

HID headlights provide a more powerful focus and long-lasting light beam than traditional halogen headlight bulbs. These newer hid kit light bulbs are easily recognized by their strong shine. Because of their strength, though, it is important to have them properly aligned. If a headlight is not adjusted in the correct manner, not only will your line of sight be diminished, but oncoming traffic my be blinded. Luckily, fixing this problem isn’t much more difficult than taking a few measurements and adjusting a few screws.

But just like any other part of your vehicle, the headlights also need regular maintenance.  There are times when they get cloudy providing less light output, or they are not adjusted to an angle that will enable them to illuminate the road at its best.
Adjusting the headlights is quite a simple task. It does not take a mechanic to get it done. All you need are a few tools.  What you will need is a screwdriver, or any that fits the adjusting screws. The best time to do it, of course, is at night.

How to adjust aim HID headlights properly:

1.  Load the automobile with enough weight . Weight will affect the angle of the light beams, so it is important that this is correct. Things to consider are the trunk, back and passenger seats as well as having a partner sit in the driver’s seat representing you.
Park your vehicle near a garage door or wall with level ground.

2.  Pull the automobile within a foot of a large wall, with 25 feet of room to back up. Mark the wall with the masking tape along the vertical and horizontal axis points of the headlights. Start with a 6-foot strip of tape from the center point of the driver’s side headlight to the center of the passenger’s side light. Then take two 6-inch pieces of tape and put a vertical mark in front of each light, creating a cross-shaped mark that will act as a bull’s eye.

3.  Back the auto up 25 feet. Turn the HID headlights on so that they shine against the wall. Inspect the light beams. Both headlights should land 2 inches below the 6-foot strip of tape. The passenger’s side headlight should also land directly on the shorter strip, but the driver’s side should hit 2 inches to the right. This indicates that the beam will not hit oncoming traffic and will shine like it should.

Open the hood and go to the rear of the headlight assembly. At the top and center of the headlight will be a small adjusting screw that controls the light’s vertical axis. Use a screwdriver to adjust this until the light hits the desired spot. Along one of the sides will be a second screw for the horizontal axis. Adjust this screw as well.

Continue the adjustments until the light beams are even. It is recommended that the lights are tilted slightly downward so they won’t blind approaching motorist.
Cars, however, can differ. So, it is best to check first your vehicle’s manual, which would also indicate how often the headlights should be adjusted. It is usually recommended that headlights be adjusted annually or as often as necessary, whenever they are out of alignment in order not to blind approaching vehicles.

How to adjust aim HID headlights
How to adjust aim HID headlights