Adaptive cruise control Ill
____________ __._ __ _
& WARNING (co n tinued )
• Always turn off adaptive cruise control when entering turn
lanes, highway exit lanes and con struction zones or similar situa-
tions because the vehicle will automatically accele rate to the
stored speed .
• Never rest your foot on the accelerator pedal, especially when
the adaptive cruise control is being us ed because doing s o will
override the braking function and prevent the brakes from being
applied by the system when it detect s a situation when the brakes
must be applied.
• Always remember that the adaptive cruise control has limits -
it does not react when you drive towards an obstacle or something
else on or near the road that is not moving, such as vehicles
stopped in a traffic jam , a stalled or disabled vehicle .
• Always remember that the adaptive cruise control cannot
detect a vehicle that is driving towards you in your traffic lane and
that it cannot detect narrow vehicles such as motorcycles and bicy-
cles .
[ i ] Tips
• For safety reasons, the stored speed is deleted when the ignition
is turned off.
• The Electronic Stabilization Program (ESP) and the Ant i-Slip Regu -
latio n (ASR) canno t be de acti vat ed when t he adaptive cruise cont rol
is sw itched on .
If the ESP and the Anti -Slip Regulation (ASR) has been
de act ivat ed an d you the n sw itch on the ada pt ive cruise cont rol, t he
ESP fu nction will also be activated automatically.
• Damage cau sed by accide nts (e.g. if t he vehicle is dam age d whe n
park ing) can affect the rada r sensor settings. This can cause t he
syst em to ma lfuncti on or switch off comple t ely.
• The radar sensor cover is heated. In winter conditions, you should
st ill check be for e dr iving to make sure it is free of ice a nd snow. If
necessary, clean the area nea r the rada r sensor caref ully =>
page 114,
fig. 106.
Controls and equip -
ment
Safety first
• To ensure that the radar sensor is not blocked , fore ign objects
(e .g. st ickers, add -on par t s) must not cover t he are a ne ar t he radar
sensor=>
page 114, fig . 106 . The area near t he radar sensor must not
be painted, either .
• For Declaration of Compliance to United States FCC and Industry
Can ad a regula ti ons =>
page 335. •
Applies to vehicles: with adap t ive cruise contro l
How does adaptive cruise control work?
Vehicles traveling ahead are detected with the aid of a
radar sens or.
I;==;.=============== -. ~
~
ll!
Fig. 107 Radar sensor
measureme nt range
A radar sensor is built into the front of the vehicle=> fig . 107, which
is subject to ce rt ain system lim its =>
page 12 5 . Stationary o bjects are
not taken into cons iderat ion. The system is intended to measure the
distance to reflective surfaces. The system responds after the
dis t ance measuremen t has taken place. If a meas urement is not
poss ible, the system does not respond.
Open road
When the road is clear, the adaptive cruise contro l works like cruise
cont rol. It ma inta ins a constant target speed specified by t he drive r.
~
Vehicle care Technical data
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