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Lit
up
Possible cause
=>
&
Solution
ACC is
active.
No vehicle
has been detec-
---..
~8
ted
ahead.
The
set speed is kept con-
stant.
When displayed in white:
ACC
active.
Ve-
--
hicle detected
ahead.
ACC regulates the
~
speed and the distance
from the vehicle
ahead
.
-
When displayed in grey:
ACC not
active.
System switched
on,
does not
regulate:
-
(")
ACC is
active.
a)
Displayed
in colour on an instrument cluster with colour
display.
Several
warning
and
indicator
lamps
will light
up
briefly as
a
functional check when the ignition is
switched
on.
They
will switch oft after
a few sec-
onds.
~..,.-
"
~
A
WAR_NING
Failure to observe illuminated warning lamps
and text messages can lead to your vehicle
breaking down in
traffic,
and can cause acci-
dent and serious injury.
Radar sensor
Fig.
167
In the front
bumper:
radar sensor
r-('n
First read and observe the introductory
L-J=JJ
information and safety warnings
4
on
page
226.
228
I
While driving
••
--;;>
A
V'{ARNING
(Continued)
~J
•
Never ignore any illuminated warning
lamps or text
messages.
Failure to observe illuminated indicator lamps
and text messages can lead to your vehicle
be·
ing damaged.
r::l
When the ACC is
switched
on,
the
display in
~
the
instrument cluster
can be overwritten
by
other
functions,
incoming telephone
calls for
exam·
~
1
pie.
to
m om
·
A radar sensor is fitted to the
front
bumper
1
tor
the traffic situation
=>
Fig.
167.
Vehicles trav
c:·of
ling ahead can
thus
be detected up
to
a dJstan
approximately
120
m.
The
adaptive cruise control and cruise
con~rol
sys·
tems will
not function
if
the
radar sensor is
,m-The
paired,
e.g.
due to
heavy
rain, spray,
or
snow.
instrument cluster
display
shows
the
message
50
rs
ACC:
no sensor view!
.
Clean the
radar sen
as required
=>
<D.
.
s
soon
The ACC
is automatically available
agaJn
a
·
d
The
as the
radar
sensor is
no longer
impa1re
·
message in
the
instrument
cluster
display goes
out,
and
the
ACC
can
be
reactivated.
S
·gnal.
e
9·
trong
reflected radiation
of
the
radar
5 '
1
1
·c ob-
.
meta 1
1n
multi-storey car parks
or when
near
used
·
'
I
tes
~ects
such
as
rails
in the
road or metal
P
a
ACC·
m
roadworks.
can
impair the function
of
the
sensor
The area
in
front
of and around
the
radar
kers
o
r
mu~t.
not be
c~vered
by
objects
~uch.
as
st'~nction
,
auxJIJary headlights,
as
this
can 1mpa1r
the
of the
ACC.
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