Contents: General information 🠛 Checking the electromagnet 🠛 Checking the light flux change system 🠛
General information
These vehicles are equipped with a mandatory automatic adjustment system for each headlight depending on the height of the vehicle body, acceleration, braking and speed of the vehicle, as well as a headlight washer.
Warning: Do not turn on a lamp that is not installed in the headlight (it is dangerous for eyesight).
Xenon lamps light at 20,000 volts and operate at 85 volts AC. Allow all "high voltage units" to cool before removing.
Before performing any work, be sure to disconnect the battery, starting from the negative terminal.
Note: The angle of the light beams in the vertical plane is adjusted depending on the speed of the vehicle.
At speeds above 30 km/h the illumination range increases.
These lamps do not have a filament. Light radiation in such lamps is generated by two electrodes enclosed in a quartz bulb containing compressed gas (xenon) and mercury vapor.
Each headlight has a high voltage unit (ballast).
The high voltage unit and xenon lamp can be replaced separately from the headlight.
The high beam headlights are supplemented by xenon lamps; if the low beam is off, the xenon lamp is not supplied with power and the light signaling is performed only by the high beam headlights.
If low beam (xenon lamps) enabled, when the light signaling is turned on, the high beam headlights are turned on and voltage is supplied to the electromagnet (xenon lamps continue to burn). This electromagnet changes the light flux of the low beam headlights.
If the electromagnet or the light flux adjustment system is faulty, the headlight must be replaced.
Checking the electromagnet
When the light signal is given (with low beams off) turning on the high beam headlights must be accompanied by power supply to the electromagnet (its inclusion is audible).
Checking the light flux change system
Warning: Do not stand in front of the headlights (it is dangerous for eyesight).
Block diagram of connection of headlights with xenon lamps
Disconnect the high beam bulb connectors.
Install a headlight adjuster in front of the headlights.
Turn on the low beam headlights.
Place the exterior lighting and turn signal switch lever in the high beam position.
The color flow should change.
Low beam headlight luminous flux
High beam headlight luminous flux