Adjust their headlights is unwise , so data can not be adjusted according to the standard , then how to judge it ? For how to judge the position near the ceiling light , where I tell you about the experience :
1 , the employer made ​​ruler : First, we can do the ruler employing , for example, a height of 1.8 meters or so people standing in front of 2-3 m position , the light shines on the thigh middle position is appropriate, if it is all to the waist too high. Of course, each person's height and legs accounted for the proportion of the body is different, so this can only be a rough standard .

2, with the front of the vehicle to do the ruler : We can observe while driving the car before irradiation conditions . Let the rear of the vehicle in a car , observed near light tangential position , to ensure that at any distance headlights would not shine on the vehicle in front of the rear windscreen , otherwise the vehicle in front at night may affect driving safety , will let the vehicle in front misunderstanding is Akira beam, hiring offensive . Beam lights should not be too particular about the lower limit position to be able to see the road about 20 meters ahead prevail.

We are free to find a wall or a pole , etc. highly suitable object , with stones or bricks and the like , on the wall marked out the position of the tangent to adjust lighting .

Different types of headlight light source and the main reflector in accordance with the classification methods , but each headlight is height-adjustable , the most common halogen headlamps, one of the near / far light , split near / far light ; Xenon lights, headlamps with automatic leveling , including the latest LED headlamps , can adjust the height.

According to the Throttle Body about Kero , with this feature , when the acceleration of the car up front , the light will have their own fall ; brake when the front to the ground , " bar ", the great light to rise, in the case of different vehicle load under the lights will automatically adjust the height , but the auto- leveling headlights "automatic" is set in accordance with a good initial value as the standard front and rear axles according to the relative height sensor feedback data to calculate the vehicle and the ground perspective on the headlight adjustment , so if the initial value is the headlight incorrect , then the automatic adjustment function is also to no avail.

The width of the light -configured at the factory are not recommended to adjust it . Because of the high and low beam light range has a tangent , a good judge position is appropriate , and for the width of the light is very wide range boundaries are very vague, exterior and interior perspectives another 's feelings are so different can not be determined in a reasonable time to adjust the position . If it is really because of a collision or other causes lights width inappropriate, it is recommended in a timely manner to the 4S shop or repair shop to regulate adjusted.

According to the  Throttle Body Kero noted , headlight height adjustment yourself a small craft, in exceptional circumstances when you can use an emergency , screw screwdriver thing or two trip 4S shop is not necessary , but it is still a relatively poor adjustment method , the proposed maintenance and repair of vehicles each time for maintenance staff to help check the position of the light is reasonable, be reconciled . Finally, a reminder : when the vehicle inspection staff will often adjust the headlight , and why to adjust not say here , but it is not always the most appropriate adjustments , it is possible to break the original car set the height of the test car back after going to look at the light height.