What to Do When the Car Headlight Adjustment Screw Doesn't Work?
2 Answers
The solution when the car headlight adjustment screw doesn't work is: go to a 4S shop for repair or replacement. The method for adjusting car headlights is: 1. Drive the car to a flat and open road surface; 2. Turn on the car headlights, adjust the low beam projection point to about 30m away from the car, making the two projection points coincide; 3. Adjust the high beam projection point to be parallel to the ground. Car headlights, also known as car front lights or car LED daytime running lights, can be maintained by: 1. Regularly checking the seal of the headlights, and replacing the sealing ring between the lens and reflector if damaged; 2. Regularly cleaning the reflector, and replacing it if it turns black or the light intensity decreases; 3. Regularly cleaning dust and stains on the bulb.
As a truck driver with over 20 years of experience, I've encountered several instances of headlight adjustment screw failure. There are typically three causes: screw stripping causing free rotation, internal adjustment gear jamming or breaking, or the adjustment linkage coming loose or deforming. If you're handling it yourself, you can remove the headlight cover and use a screwdriver to test which component is the issue. Last time, my adjustment gear broke, and I used AB glue to temporarily fix it for two days before spending 80 yuan at the repair shop for a new gear. Before starting, remember to prepare new screws as backups, ensuring they match the original specifications—different vehicles use different hex or Phillips head types. Honestly, a faulty adjustment screw has a significant impact: lights set too high can blind oncoming traffic, while lights set too low make it hard to see the road, requiring extra caution when driving at night. If you encounter this issue, don't push through—get it fixed as soon as possible for safety.
