Active Steering Assist is only available for vehicles with the Driving Assistance Package.
Active Steering Assist is operational at speeds up to 210 km/h and helps you to stay in the centre of the lane by means of moderate steering interventions.
It uses the vehicle in front and the lane markings as a reference depending on the driven speed.
Active Steering Assist requires you as the driver, to keep your hands on the steering wheel at all times so that you are able to intervene at any time to correct the course of the vehicle and keep it in lane.
Active Steering Assist can be overridden at any time by steering the vehicle yourself.
When the system is actively steering, the
symbol is shown in green in the multifunction display.
Active Steering Assist has a limited steering torque for lateral guidance. In some cases, the steering intervention is not sufficient to keep the vehicle in the lane.
If detection of lane markings and vehicles ahead is impaired, Active Steering Assist switches to passive mode. The system provides no support in this case. During the transition from the active to passive status, the symbol is shown as enlarged and flashes yellow. Once the system is passive the symbol is shown as grey in the multifunction display.
If there is poor visibility, e.g. due to insufficient illumination of the road, or due to snow, rain, fog or heavy spray.
If there is glare, e.g. from oncoming traffic, direct sunlight or reflection from other vehicles (e.g. if the carriageway is wet).
If the windscreen is dirty, misted up, damaged or covered, for instance by a sticker, in the vicinity of the camera.
If no, or several, unclear lane markings are present for one lane, e.g. in a construction area.
If the lane markings are worn away, dark or covered up, e.g. by dirt or snow.
The distance to the vehicle in front is too small and the lane markings thus cannot be detected.
If the lane markings change quickly, e.g. lanes branch off, cross one another or merge.
The carriageway is narrow and winding.
If there are highly variable shade conditions on the carriageway.
If there are obstacles such as object markers on the lane or projecting out into the lane.
On very sharp bends.
When towing a trailer.
If you actively change lane without switching on the turn signal indicator.