adaptive cruise control (ACC)128
adaptive cruise control (ACC)
Speed and distance control system
Applies to vehicles: with adaptive cruise control
Description
The adaptive cruise control is a combined speed and
distance control system to assist the driver.
Adaptive cruise control allows you to maintain any desired constant
speed between 30 and 200 km/h. In addition, the system controls
the distance maintained to the vehicle in front (subject to certain
limitations as described below).
The system can be used to greatest effect on long motorway jour-
neys or on other main roads with long straight sections.
How is the system operated?
The adaptive cruise control system is operated via a control lever on
the steering wheel ⇒ page 131, “Setting the speed” and
⇒ page 133, “Setting the distance”.
Driver messages
When the system is being used, important information is displayed
in the speedometer and on the instrument cluster display screen
⇒ page 134, “Driver messages”.
Please note the following points:
The adaptive cruise control has certain limits determined by the
system itself. This means that the driver may in some situations
have to intervene and control the speed and distance to the vehicle
in front himself ⇒ page 138, “Driver intervention prompt” and
⇒ page 140, “System limitations”.
WARNING
Please always direct your full attention to the road, even when you
are using adaptive cruise control. It is always the driver who is
responsible for determining the speed and for keeping a safe
distance to the other vehicles on the road.
• For safety reasons, the adaptive cruise control must not be
used in city traffic, stop-go traffic, roads with a lot of bends or in
difficult driving conditions (such as ice, fog, loose grit or gravel,
heavy rain, aquaplaning) - this could cause an accident!
• When you take a turn-off, drive along a motorway exit lane or
pass through roadwork sections, please temporarily switch off the
adaptive cruise control in order to avoid the vehicle accelerating to
the selected speed.
• The adaptive cruise control can only control the distance to
vehicles in front. As a rule, it cannot recognize vehicles travelling
in other lanes. For this reason, please temporarily switch off the
system if you are travelling in the inside lane and vehicles in the
overtaking lane are travelling at a slower speed than you are.
Otherwise, you would overtake these vehicles on the inside.
Fig. 136 Trim grille
(front right): Position of
radar sensor
document_0900452a81b1b9de.book Seite 128 Donnerstag, 26. Juli 2007 9:16 09
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