Headlight Units
In the headlight units.
For the dipped headlights, both halogen bulbs and bulbs for bi-xenon headlights (with option 522 "Bi-xenon dipped/main-beam headlights") are available. Bulbs for bi-xenon headlights are either D2-S or D1-S bulbs.
- D2-S bulbs: ignitor and bulb are two components.
- D1-S bulb: ignitor and bulb are a single component.
Construction The basic version consists of double circular headlights with halogen bulbs.
The double circular headlights with halogen bulbs are constructed as follows:
- Above the double circular headlights is a trim.
- The light lens for the turn signal lights is extended into the side panel. The light lens for the turn signal lights is extended into the side panel.
- Each headlight includes 2 side light bulbs whose light is emitted forwards both via the reflectors and through the lighting ring.
The following options are available:
- European version: Bi-xenon headlights with automatic headlight-range adjustment.
- In Europe and in the USA: Bi-xenon headlights with adaptive headlights (including automatic headlight-range adjustment).
The headlights of option 522 "Bi-xenon dipped/main-beam headlights" are constructed as follows:
- Side light ring
- Double circular headlights: Bi-xenon dipped headlights and halogen main-beam headlights
- Above the double circular headlight is the side marker light with 5 individual LEDs and a continuous light strip. The side marker lights are a legal stipulation in the USA.
How It Works
Side Lights
- Double circular headlights with halogen bulbs: Each of the two reflectors is illuminated with light from one of the bulbs. Light is fed through the side light rings by small reflectors (improved contrast).
- Option 522 "Bi-xenon dipped/main-beam headlights": A central light source feeds the side light rings via 2 flexible optical conductors The side light rings are visible on the bi-xenon headlights.
Dipped Headlights
- Double circular headlights with halogen bulbs: The free-form reflector is fed by a bright H7 bulb. The free-form reflector ensures even distribution of light onto the road even in the case of headlights with halogen bulbs.
A free-form reflector consists of individual, non-symmetrical surfaces in free-form design. This means that the beam is reflected onto the road as efficiently as possible. The driver's field of vision is illuminated in the best possible way. Reflectors used to be parabolic in shape.
- Option 522 "Bi-xenon dipped/main-beam headlights": An ellipsoid reflector, a 70mm lens and a state-of-the-art xenon bulb generate light of the customary intensity.
Main-Beam Headlights
- Double circular headlights with halogen bulbs: the H7 bulb and the reflector in the main-beam headlight are matched to the dipped beam. This makes for efficient distribution of the entire beam onto the road and maximises the headlight range.
- Option 522 "Bi-xenon dipped/main-beam headlights": The bulb for bi-xenon headlights is used for both dipped and main-beam headlights. For the main beam, a screen in the ellipsoid reflector in front of the bulb for bi-xenon headlights is folded back. This increases the intensity of light from the bi-xenon headlight. In addition to this main beam from the bi-xenon headlight, the H7 bulb in the main-beam headlight is also switched on.
US National Version - US models have the following features:
- Side marker lights, and
- Main-beam headlights by redirecting the bi-xenon headlights
Side Marker Lights On US Models The additional light lens for the turn signal lights is replaced by a side marker light. The light for side-on detection is generated by 5 yellow LEDs. A further LED feeds a light strip. The light strip feeds the light into the front part of the headlight. This identifying feature provides additional safety.
Main Beam By Redirecting The Bi-Xenon Headlights In the USA, main beam is realised by redirecting the bi-xenon headlights. On US models, halogen bulbs are only used for the headlight flasher.