BMW 3 series E46

Since 1998 of release

Repair and car operation



The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ РКПП and трансмиссионная a line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   + Дигностика electric elements
   - Illumination and the alarm system
      Removal and installation/check of a sound signal
      Remote control initialization
      Replacement of lamps накаливания external illumination
      Replacement of lamps накаливания internal illumination
      Removal and headlight installation
      Removal and installation of a ring cover of a headlight
      Removal and installation of the electric motor of adjustment of range of light
      Adjustment of headlights
      Gas-discharge lamps of a passing light (the xenon lamps)
      Removal and installation of a back lantern
   + Devices and the equipment
+ Electric equipment schemes


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Gas-discharge lamps of a passing light (the xenon lamps)

In comparison with галогенными lamps of the basic complete set of a headlight with gas-discharge lamps (the xenon lamps) have brighter passing light similar to a daylight. The total power gas-discharge lamps reach through 3 with the ambassador of inclusion. At gas-discharge lamps the flask is filled by the xenon gas, and light is created as a result of fire of an arch owing to the pressure application between two electrodes. Electronic monitors and a source creating quickly pressure 28.000 In for ignition of a light arch are necessary for work of a gas-discharge lamp. Capacity of 35 Vt suffices for creation of double force of light of a usual lamp by capacity of 55 Vt for a gas-discharge lamp.

Gas-discharge lamps have the big service life. Their replacement if it in general is required, is carried out in some years of operation.

At replacement of gas-discharge lamps (the xenon lamps, the additional equipment) there is a danger to a life owing to not qualified reference with an element of a high voltage of a lamp. Therefore lamp replacement here is not described.

The system of headlights with the xenon light is equipped with dynamic adjustment of range of light which automatically reacts to change of loading of the car.


Dynamic adjustment of range of light of headlights with gas-discharge lamps

For an exception of blinding action on counter transport of a headlight are equipped with dynamic adjustment of range of light which automatically establishes range of light of headlights depending on various loading of the car.

Gauges on forward and back suspension brackets register each change of level of the car. The electronic monitor processes signals of gauges and through electric motors in appropriate way regulates position of reflectors of headlights.

Manual adjustment of range of light is not provided. In the presence of malfunction in system of electric adjustment of a headlight are automatically established in the lowermost position.

For adjustment and reading of indications of memory of malfunctions of headlights from gas-discharge lamps special diagnostic device BMW is required. Address to Section Diagnostics of malfunctions. These works can be carried out only on HUNDRED.