Driving and operating 191Following distanceindicationThe following distance indicationdisplays the distance to a precedingmoving vehicle. The system uses,depending on the vehicle equipment,either the radar behind the radiatorgrille or the front camera in thewindscreen to detect the distance ofa vehicle directly ahead in your lane.It is active at speeds above 25 mph.When a preceding vehicle is detectedahead, the distance is indicated inseconds, displayed on a page in theDriver Information Centre 3 118.Press the MENU button on the turnsignal lever to select VehicleInformation Menu X and turn theadjuster wheel to choose followingdistance indication page.The minimum indicated distance is0.5 s.If there is no vehicle ahead or thevehicle ahead is out of range, twodashes will be displayed: -.- s.Active Emergency BrakingActive emergency braking can help toreduce the damage from crashes withvehicles and obstacles directlyahead, when a collision can no longerbe avoided either by manual brakingor by steering. Before the activeemergency braking applies, the driveris warned by the forward collisionalert 3 187.The feature uses various inputs (e.g.radar sensor, brake pressure, vehiclespeed) to calculate the probability ofa frontal collision.Active emergency braking operatesautomatically above walking speed,provided that Auto collisionpreparation setting is not deactivatedin the vehicle personalisation menu3 131.The system includes:■ Brake preparation system■ Emergency automatic braking■ Forward looking brake assist9 WarningThis system is not intended toreplace the driver responsibility ofdriving the vehicle and lookingahead. Its function is limited tosupplemental use only. The driver
