Mercedes-Benz 2009 CLS550 C Automobile User Manual


 
Driving systems
145
follow that vehicle at your preset following
distance.
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If there is no vehicle directly ahead of you,
the Distronic will function in the same way
as standard cruise control (Y page 142).
G
Warning!
The Distronic is a convenience system. Its
speed adjustment reduction capability is
intended to make cruise control more
effective and usable when traffic speeds
vary. It is not however, intended to, nor
does it, replace the need for extreme care.
The responsibility for the vehicle’s speed,
distance to the preceding vehicle and, most
importantly, brake operation to ensure a
safe stopping distance, always remains
with the driver.
Complex driving situations are not always
fully recognized by the Distronic. This could
result in wrong or missing distance warn-
ings.
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Warning!
The Distronic adaptive cruise control is not
a substitute for active driving involvement.
It does not react to pedestrians or on sta-
tionary objects, nor does it recognize or
predict the lane curvature or the movement
of preceding vehicles.
The Distronic can only apply 20% of the
maximum braking power of the vehicle.
It is the driver’s responsibility at all times to
be attentive to the road, weather and traffic
conditions. Additionally, the driver must
provide the steering, braking and other driv-
ing inputs necessary to remain in control of
the vehicle.
High-frequency sources such as toll sta-
tions, speed measuring systems etc. can
cause the Distronic system to malfunction.
G
Warning!
The Distronic requires familiarity with its
operational characteristics. We strongly
recommend that you review the following
information carefully before operating the
system.
G
Warning!
The Distronic cannot take road and traffic
conditions into account. Only use the Dis-
tronic if the road, weather and traffic con-
ditions make it advisable to travel at a
constant speed.
G
Warning!
Use of the Distronic can be dangerous on
slippery roads. Rapid changes in tire trac-
tion can result in wheel spin and loss of
control.
The Distronic does not function in adverse
sight and distance conditions. Do not use
the Distronic during conditions of fog,
heavy rain, snow or sleet.
G
Warning!
The Distronic cannot take weather condi-
tions into account. Switch off the Distronic
or do not switch it on if:
R
roads are slippery or covered with snow
or ice. The wheels could lose traction
while braking or accelerating, and the
vehicle could skid.
R
the Distronic system sensor cover is dirty
or visibility is diminished due to snow,
rain or fog, for example. The distance
control system functionality could be
impaired.
Always pay attention to surrounding traffic
conditions even while the Distronic is
switched on. Otherwise, you may not be
able to recognize dangerous situations until
it is too late. This could cause an accident
Controls in detail
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