Distance warning is active at speeds above 30 km/h (20 mph) and only reacts to the vehicle ahead travelling in the same direction. No distance information is provided for oncoming, slow or stationary vehicles.
Note
Distance warning is deactivated during the time the adaptive cruise control is active.
Warning
Distance warning only reacts if the distance to the vehicle ahead is shorter than the preset value - the speed of the driver's vehicle is not affected.
Head-up display*
In cars equipped with head-up display, a symbol is shown on the windscreen for as long as the time interval to the vehicle ahead is shorter than the preset value. However, this presupposes that the Show Driver Support In Head-Up Display function is activated via settings in the car's menu system; see the heading "Head-up display" for how this works.
Note
Information on the windscreen may be difficult to see in strong sunlight and when wearing sunglasses.