The following function is country-dependent and only available in conjunction with the Driving Assistance Package.
Active Lane Change Assist supports the driver when changing lanes, by applying steering torque.
You are driving on a motorway or road with multiple lanes in the direction of travel.
The neighbouring lane is separated by a broken lane marking.
No vehicle is detected in the adjacent lane.
The driven speed is between 80 km/h and 180 km/h.
Active Lane Change Assist is activated by the driver with the turn signal indicator.
Active Lane Change Assist is switched on in the multimedia system.
Active Steering Assist is switched on and active.
If no vehicle is detected in the adjacent lane and a lane change is permitted, the steering wheel symbol and the arrow are shown in green 
. The Lane change to the left message appears, for example. If Active Lane Change Assist has been activated with the turn signal indicator but a lane change is not immediately possible, the steering wheel symbol remains green and the arrow appears grey 
. When the lane change support starts, the turn signal indicator is automatically activated. If a lane change is not possible, the arrow fades out after a short period and a new lane change must be initiated. An immediate lane change is only possible on motorway sections without speed limits.
If the system is impaired, Active Lane Change Assist may be cancelled. If it is cancelled the Lane change cancelled message appears in the multifunction display and a warning tone sounds.
Lane Change Assist cannot always detect clearly if the adjacent lane is free.
The lane change might be initiated although the adjacent lane is not free.
If the system limitations for Lane Change Assist have been reached, there is no guarantee that the system will remain active.
Lane Change Assist cannot then assist you by applying steering torques.
The system limitations of Active Steering Assist apply to Active Lane Change Assist More.