Adjust the height of the low beam and high beam on my Mercedes Class A. Therefore once the mark fixed on the wall open the hood of your Mercedes Class A in order to adjust the headlights. Find the screw close to the optic and adjust by screwing from right to left to adjust the height. The objective is for the light beams of your Mercedes A The headlight bulb is held in the bucket by a thin aluminum frame with screws to change the bulb without changing the headlight adjustment. Go slowly, making quarter-revolution turns of the adjustment screw, and evaluate the results. As you adjust for the low beams, the headlight will be properly aligned for the high beam. Get a flat road towards a wall. Point the car at the wall about a foot from the wall. Mark the location of the main beam, back up ten feet and see where the beam differs. There's a nylon adjusting screw behind the headlamp that you turn to adjust height. If they're right. Just turn them down a touch more. Reply. Clean the lenses and check for proper beam switching. Mark or tape the vertical centerline of the snowplow headlamps and the vertical centerline of the vehicle on the screen. Mark the horizontal centerline of the snowplow headlamps on the screen (distance from ground to headlamp centers). Align the top edge of the high-intensity zone of the It's a 4mm ratcheting tool and it makes adjusting them way easier, even though it only moves the headlight a little bit with each turn. Park your truck on a flat surface about 20-25 feet from a wall and it's easy to see the movement as you're adjusting. Let's go ahead and start with the SV4. With the SV4, it'll come with an Allen key right out of the box, and then there's also an Allen screw right here on the bulb. All you gotta do is loosen it up. Then you can twist the collar to wherever it needs to go. The Diode Dynamics SL1 is very similar. Open the hood and identify the vertical and horizontal adjustment screws on each headlight assembly. These screws control the aim of the headlights. Generally, modern F150s have these screws on the back of the headlight housing. Consult your vehicle’s manual if you’re unsure about their location. Make a mark that you'll be able to see when your headlamps are turned off. Mark a second spot 2" below each of those you first marked. Back your vehicle to a distance of 25 feet from the vertical surface. With your headlight shining on the vertical surface, be sure the headlamps are focused halfway between the lower and upper marks you made. C5afNc.