OverviewHighlights: Key factsShort version: The Mercedes-Benz A-Class: The benchmark in the compact classMBUX Mercedes-Benz User Experience: Unrivalled experience for the userUnder the microscope: LINGUATRONIC voice control: "Hey Mercedes"Under the microscope: Individualisation: Tailor-made and capable of learningUnder the microscope: Mercedes me connect: New services, easy operationUnder the microscope: Private Car Sharing: Sharing the new A-Class with friendsUnder the microscope: Innovative Mercedes me connect services Parking: Finding a parking space made easyUnder the microscope: Head-up display: Keeping your eyes on the roadDriving assistance systems: High safety standard with functions from the S-ClassUnder the microscope: MULTIBEAM LED headlamps: Optimum visibility in all conditionsAerodynamics: Extensive improvements by computer and wind tunnelDrive system: New engines, new transmissionsUnder the microscope: 4MATIC: More driving pleasure, more efficiencyBody and passive safety: Safety and quiet running at the highest levelSuspension: Agile and comfortableExterior design: Exercise in purismInterior design: A revolution from withinUnder the microscope: Seats: Comfort features from higher vehicle classesUnder the microscope: Utility value: The A-Class has grown upModel range: Something to suit every tasteUnder the microscope: Edition 1: Exclusive special model with colourful highlightsTesting: 12 million test kilometres on four continentsHistory: A compact revolution: Over 20 years of the Mercedes-Benz A ClassProduction: Five plants on three continentsInteresting aspects of the A-Class: Did you know that...Technical data

Under the microscope: Head-up display: Keeping your eyes on the road

Apr 18, 2018

The optional head-up display is a new feature in the A-Class. Important information is projected into the windscreen directly in the driver's field of vision, reducing distraction from the traffic situation. There is also less eye fatigue for the driver, as the eyes do not constantly have to refocus between close-up and long-distance vision. Also new in this vehicle class is configuration via the head-up display itself.

A system of lenses and mirrors projects a full-colour image measuring around 24 x 8 centimetres into the windscreen. It appears to float above the bonnet at a distance of around 2.5 metres. The resolution of more than 60 pixels per degree of viewing angle ensures a needle-sharp image. The driver can adjust the height of the virtual image so that it can be easily viewed. In vehicles with seat memory function this feature stores the individual settings.

The head-up display is activated using the left touch-control button in the steering wheel. It is configured via a settings menu in the display itself, a first in this vehicle class. The driver is able to configure the display according to personal preferences and priorities. Depending on the equipment level and personal settings, it shows e.g. navigation instructions, vehicle speed, speed limits or the settings for cruise control or Active Distance Control DISTRONIC.

A light sensor located near the top edge of the roof automatically adjusts the brightness of the head-up display to the exterior lighting conditions. Brightnesses of 12,000 cd/sq. m. plus can be achieved on sunny days. Since the contrast ratio is better than 1000:1, the system produces a high-quality display even in the dark. To avoid double images caused by reflection at the outer and inner boundary surfaces of the windscreen, this includes a wedge-shaped composite membrane if the vehicle is equipped with the head-up display. It superimposes the secondary image, which is produced on the outer surface, onto the primary image. The head-up display was already taken into consideration during the design of the new dashboard, and the appropriate space was allowed for it.