Driver assist systems
Cruise control system
Introduction to the topic
The cruise control system helps to maintain a speed set by the driver.
Speed range
The cruise control system is available when driving forwards at speeds from around 20 km/h
(15 mph).
Driving with the cruise control system
You can exceed the stored speed at any time, e.g. to overtake. Control is interrupted for the
duration of the acceleration manoeuvre and is then resumed with the stored speed.
How do I operate the cruise control system?
Depending on the vehicle equipment, you can operate the cruise control system either by means
of the turn signal lever or via the multifunction steering wheel (→ Cruise control system,
Operation).
Displays
When the cruise control system is switched on, the instrument cluster display shows the stored
speed and the status of the cruise control system:
CCS (active).
Shown small or grey: cruise control system not regulating speed.
Shown large or white: cruise control system regulating speed.
If no speed is stored, the instrument cluster display shows
instead of the speed.
Driving downhill
Driving downhill may cause the set speed to be exceeded.
Apply the foot brake to slow the vehicle down, and switch on brake energy recuperation as
required (→ Driving mode selection for electric vehicles, Description).
WARNING
Use of the cruise control system can lead to accidents and serious injuries if traffic does not
allow you to drive at a safe distance at a constant speed.
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Never use the cruise control system in heavy traffic, if the distance to the vehicles in front is
insufficient, on steep or winding roads, on slippery road surfaces, e.g. due to snow, ice, wet
roads, loose chippings, or on flooded roads.
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Never use the cruise control system when driving offroad or on unpaved road surfaces.
Adapt your speed and distance from the vehicles ahead to suit visibility, weather, road and
traffic conditions.
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Always switch cruise control off after use to avoid unintentional speed control.
It is dangerous to use a set speed that is too high for the prevailing road, traffic or weather
conditions.
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The cruise control system cannot maintain a constant speed when travelling downhill. The
vehicle speed can increase under its own weight. Switch on brake energy recuperation or
apply the foot brake to slow down the vehicle.