Active Distance Assist DISTRONIC maintains the set speed on free-flowing roads. If vehicles ahead are detected, the set distance is maintained, if necessary until the vehicle comes to a halt. The vehicle accelerates or brakes, depending on the distance to the vehicle in front and the set speed. Speed and distance are set and stored on the steering wheel. The speed can be set in the range between 20 km/h and 200 km/h.
Depending on the preselected distance, DISTRONIC intervenes either dynamically (short distance) or to save fuel (long distance).
Depending on the vehicle mass detected, the dynamics of the DISTRONIC intervention are reduced.
The driving style is adapted depending on the drive program selected.
Initiates acceleration to the stored speed if the turn signal indicator is switched on to change to the overtaking lane.
Active Distance Assist DISTRONIC is only an aid. The driver is responsible for the distance to the vehicle in front, for vehicle speed and for braking in good time.
The radar sensors are affected by snow, rain, fog or heavy spray.
If the radar sensors are dirty or covered.
The sensors are affected by interference from other radar sources, e.g. strong radar reflections in multi-storey car parks.
On icy or slippery roads, braking or accelerating can cause the drive wheels to lose traction and the vehicle could then skid.
In traffic conditions that are unsuitable for driving at a constant speed, e.g. in heavy traffic, on winding roads or off-road.
On roads with steep downhill or uphill gradients with a fully laden vehicle.
Stationary objects are not detected if these were not previously detected as moving.
On bends, target vehicles may be lost or not recognised correctly. As a result, a target vehicle is not used to regulate the speed which may lead to unwanted acceleration.
Do not use Active Distance Assist DISTRONIC in these situations.
If the vehicle pulls away using Active Distance Assist DISTRONIC.
If the stored speed is called up and is considerably faster or slower than the currently driven speed.
If Active Distance Assist DISTRONIC no longer detects a vehicle in front or does not react to relevant objects.
Active Distance Assist DISTRONIC brakes your vehicle with up to 50% of the possible deceleration. If this deceleration is not sufficient, Active Distance Assist DISTRONIC alerts you with a visual and acoustic warning.
when driving on a different lane or when changing lanes
to pedestrians, animals, bicycles or stationary vehicles, or unexpected obstacles
to complex traffic conditions
to oncoming vehicles and crossing traffic
As a result, Active Distance Assist DISTRONIC may neither give warnings nor intervene in such situations.
Active Distance Assist DISTRONIC might not detect narrow vehicles driving in front, e.g. motorcycles and vehicles not travelling in line with your vehicle.