- automatic adjustment system for each headlight depending on changes in body height, acceleration, braking and vehicle speed;
- headlight washer.
Warning! Do not turn on the bulb when it is not inserted into the headlight unit (it is dangerous for eyesight).
Attention! Xenon lamps light at a voltage of 20,000 V and operate at an alternating voltage of 85 V.
Caution! Wait until the "ECU and high voltage unit" assembly has cooled down before removing it.
Caution! Before performing any work, disconnect the battery.
Note: The angle of the light beams in the vertical plane is adjusted depending on the vehicle speed.
Note: At speeds above 30 km/h, the illumination range increases.
Xenon lamps do not have a filament. Light radiation in such lamps is generated by two electrodes enclosed in a quartz flask containing compressed gas (xenon) and mercury vapor.
Each headlight is equipped with an ECU built into the high voltage unit.
This system is checked using diagnostic tools.
The "ECU - high voltage unit" unit and xenon lamps can be replaced separately from the headlights.
Attention! Actuator (stepper motor) it can't be removed from the headlight.
Attention! If the actuator is faulty, the headlight must be replaced.
Removal and installation of headlights with xenon lamps is carried out in the same way as headlights with halogen lamps.
Fig. 7.20. Block diagram of the lighting system with xenon lamps: 1 – rain and light sensor; 2 – switch for exterior lighting, direction indicators and fog lights; 3 – Central Electronics Complex; 4 – information about switching on low-high beam headlights (from the protection and switching unit); 5 – information about the vehicle speed (from ABS ECU); 6 – height of the front part of the body (front sensor); 7 – height of the rear part of the body (rear sensor); 8 – diagnostic line K; 9 – unit "ECU – high voltage unit" (left headlight); 10 – lamp; 11 – actuator of the left headlight corrector; 12 – unit "ECU - high voltage unit" (right headlight); 13 – actuator of the right headlight corrector; 14 – lamp