Headlight leveling is as much a must as replacing filters and oil. No matter how powerful and expensive the optics of a car may be, it will be of little use if the beams of light are not correctly directed.
The direction of the headlights depends on many factors: the distribution along the axes of the mass of the car, the difference in the degree of deterioration and tire size , tire pressure and suspension condition. For the proper direction of the light before the procedure, you need to make sure that the machine is completely charged, technically sound and loaded in a certain way. If in the near future it is planned to make repairs to the suspension or other chassis, then it is worth shifting the adjustment of the optics.
Lamp or reflector malfunctions can complicate setup, even with expensive equipment. In this case, adjustment of the headlights is only possible after replacing them.
The correct adjustment of the headlights is not a matter of road ethics, but the safety of driving a car, especially at night. You can spend it in a car service or on your own. It is better, of course, to entrust such a responsible matter to professionals, so your appearance on the roads will not cause inconvenience to you or to the drivers moving towards the meeting.
Driving safety depends on the direction of light of the optical device. Poorly tuned front optics can cause an accident, which is dangerous for both the driver and others. Headlight adjustment allows you to make sure that the curb will be well lit. Even when buying a new car, you need to check how its headlights shine, otherwise you run the risk of not having to pass the inspection.
Adjusting the headlights of a car is required when passing a technical inspection. It directly checks the operation of the optical system of the car. It is worth remembering that the adjustment of the fog lights is on par with the main ones. Car service experts can always help in fixing the slightest malfunction in the headlights.
During operation of the car, the brightness of the light gradually decreases. This may be due to damage to the voltage regulator or generator. With a small voltage, the lamp glows dimly, and when the battery is recharged - more brightly, but quickly burns out. Another reason for dim light is corrosion, contamination of the reflector or plaque on the surface of the lamp (when the bulb is used for 50 thousand km or more, the luminous efficiency decreases by 20%).
The headlights on modern cars are tight, they do not get dust and moisture, which significantly improves light output. In the past, corrosive moisture was fought by pouring brake red fluid into the headlights. Later, plexiglass, no less harmful, nozzles on glasses began to be used, but such "glasses" were soon abandoned due to the fact that they scattered light and contributed to strong heating, followed by burning of the reflector.
The lights themselves are adjusted using special screws. You can do this horizontally and vertically.