But the headlights can be checked and adjusted in an impromptu way, for example, if you replaced the incandescent bulb or the entire headlight at the end of the week. However, this is just a last resort! As soon as possible, ask a specialist to adjust the headlights.
Conditions for checking and adjusting
During any inspection or adjustment, the following conditions must be met:
- appropriate tire pressure;
- intact and clean diffusers;
- serviceable reflectors and incandescent lamps;
- suitably loaded vehicle.
The fuel tank must be at least 90% full, all transportable equipment must be in the vehicle, including the spare wheel and tools, and a person must be seated in the driver's seat (75 kg load can also be used).
If the fuel tank is not full enough, additional weights should be placed in the trunk (canisters filled with water). The Audi firm prescribes the placement in the trunk of 52 kg when the tank is filled by 25%, 35 kg - at 50%, 17 kg - at 75%.
1. Place the car on a flat surface against a wall. The distance between the front end and the wall should be exactly 5 meters.
2. To seat the springs, press firmly in the vertical direction several times on the front and rear of the car.
3. Set the manual headlight range to zero (knurling disc).
4. The main headlights are adjustable only in low beam. The slope should be 10 centimeters at a distance of 10 meters. Percent slope (10 cm / 10 m correspond to 1%) indicated at the top of the headlight.
Inclination in % is indicated at the top of the headlight (headlight shown here is not for Audi A4)
5. Measure the distance between the ground and the midpoint between both headlights. Measure this distance on the wall and connect both points with a straight line (S1).
Lines and crosses on the wall for temporary headlight adjustment
6. Below, at a distance of 5 cm, draw a parallel line E on the wall. This line corresponds to the inclination of the low beam at a distance of five meters.
7. Looking forward through the rear window and estimating the distance, ask an assistant to draw a vertical line M exactly in the middle of the car.
8. Measure the distance between the center of the car and the middle of both headlights (left and right). Put these distances on the line S1 (to the right and left of the intersection point of lines M and S1) and mark the obtained points with a cross (S2).
9. The low beam deflection points are adjusted on the E line at a distance of five centimeters below these crosses.
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