To do this, turn on the ignition and turn on the parking, dipped, main beam and fog lights in turn. At the rear of the vehicle, the rear lights, license plate lights, reversing lights and rear fog lights must function flawlessly. When traveling with you, you should always take a small supply of the most necessary lamps and fixtures. Lamps are indicated on the base or glass bulb.
A car with halogen headlights must have a supply of the following bulbs:
incandescent lamp | Lamp type | Power |
high beam | H7 | 55 W |
dipped beam | H7 | 55 W |
parking light | glass plinth | 5 W |
flashing light | bayonet base | 21 W (orange) |
Brake signal/rear light | bayonet base | 21/5 Tue |
Reversing lights | bayonet base | 21 W |
Rear fog lamp | bayonet base | 21 W |
License plate light | Soffit lamp | 5 W |
Upper brake light | LEDs | |
Plafonds | Soffit lamp | 10 W |
In the case of headlamps with discharge lamps, an additional discharge lamp is required: | ||
discharge lamp | D2S | 35 W |
Headlight range adjustment
In Germany, headlight range adjustment for new vehicles is prescribed by law. This regulation is designed to prevent dazzling drivers of oncoming vehicles when the car is loaded. In the AudiA4, the headlight beam throw is electrically adjustable. To do this, each headlight has a servomotor, this motor is controlled by actuating the regulator manually or automatically (automatic control for gas discharge lamps is a must). The servomotor is dismantled separately from the headlight.
Xenon light
In headlamps with gas discharge lamps, xenon technology achieves very bright (-day») Sveta. Compared to a halogen lamp, the luminous flux is increased by two and a half times, and energy consumption is reduced by 35 percent. The road is illuminated better, the range of the headlight is increased.
Instead of an incandescent lamp, headlamps with gas discharge lamps use a gas discharge lamp. When arc ignition voltage is applied (from 10 to 21 kV) the gas mixture, which consists of xenon and metal halides, becomes conductive. This creates an electric arc. The controlled application of 400 Hz alternating current vaporises the metal filler and emits light in the process. An electronic ballast is required to turn on and operate the xenon lamp.
Because of the strong light, vehicles with xenon headlights must have automatic headlight beam throw adjustment. Replacement of lamps must be carried out in a qualified manner, since when working with a high-voltage unit (as with the ignition system) under some circumstances, there may be a danger to life.
Ordinary and xenon light: The road is illuminated better and more evenly
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