2012 MERCEDES-BENZ CLS COUPE warning

G
WARNING
Please note that objects not at ground level
may appear to be further awayt han they
actually are. These include:
R the bumper of avehicl ethat is parked
behind yourv ehicle
R at railer drawbar
R the ball coupling of atrailer tow hitch
R the tail-en dofalorry
R slanted posts
The lines are only guides, not accurat emeas-
urement softhe distanc etoanobstacle.
Therefore, you should never pass the red line
when approaching an obstacle. You could oth-
erwise cause an acciden tand injure yourself
and others. Information in the COMAND display (example)
Guid elines ; and =sho wthe approximate
distance to the rea rarea. Yellow guide
line ;approximatel y1.0ma nd red guide
line =approximatel y0.25 m. Th edistances
only appl ytoobjects that are at ground level.
Blu eguide lines :depict the width required
for the vehicle .They are used to align the
vehicle with the edge of the carriageway ,e.g.
the kerb. ATTENTION ASSIST
Important safety notes G
WARNING
ATTENTIONA SSIST is only an aid and may
detect your tiredness or lapses in concentra-
tion too late or not at all. It is not asubstitute
for aw ell reste dand attentiv edriver.
Fatigue may caus eyou to recognise hazard-
ous situations to olate ,misjudge asituation
or reac tslower. For this reason ,makes ure
you fee lreste dbefore you begin driving and
durin gyour journey. Always tak ebreaks in
good tim eand regularly, especiall yduring
lon gjou rneys. Otherwise, you may fail to rec-
ognise danger sintime, caus eanacciden tand
injure yoursel fand others.
General notes ATTENTIO
NASSIST helps yo uduring long,
monotonou sjourney ssuchasonm otorways
and trunk roads. It is active in the 80 km/h
to 180 km/h range.
If ATTENTIO NASSIST detects typica lindica-
tors of fatigu eorincreasing lapse sincon-
centration on the part of the driver, it sug-
gests taking abreak.
ATTENTIO NASSIST assesses your level of
fatigu eorlapsesinc oncentration by taking
the following criteria into account:
R your persona ldriving style ,e.g. steering
characteristics
R journey-relate dparameters, e.g. time of
day, length of journey
The functionality of ATTENTIO NASSIST is
restricted, and warning smay be delaye dor
not occu ratall:
R if the roa dcondition is poor, e.g. if the sur-
face is uneven or if there are potholes
R if there is astrong sid ewind
R if you have adopted asport ydrivin gstyle
with high cornering speeds or high rates of
acceleration 192
Driving systemsDriving and parking

R
if you are predominantly drivin gslower
than 80 km/h or faster than 180 km/h
R if you are currently using COMAND APS or
making atelephon ecall with COMAND APS
R if the tim ehas been set incorrectly
R in active drivin gsituations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display If ATTENTION ASSIS
Tisactive, you will be
warne dnosooner than 20 minutes after your
journey has begun. You the nhear an inter-
mittent warning tonet wice and theAtten‐ tion Assist: Drowsiness detected mes-
sage appears in the multifunction display.
X Activat eATTENTION ASSISTu sing the on-
board computer (Y page 220).
Symbol :appears in the multifunction
display.
X If necessary, take abreak.
X Press the abutton to confirm the mes-
sage.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take abreak, you will be warned again
after 15 minutes at the earliest. This will only
happen if ATTENTION ASSISTs till detects
typical indicators of fatigue or increasing lap-
ses in concentration.
ATTENTION ASSISTisr eset and starts
assessing your tiredness again when you con-
tinue your journey if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for achange of drivers or
to take abreak. Speed Limit Assist
Important safet ynotes G
WARNING
Speed Limit Assist is only an aid and may
detec tspeed limit signs incorrectly or not at
all.
The system may be impaired or may not func-
tion if:
R ther eisp oor visibility, e.g. due to snow,
rain, fog or spray.
R ther eisg lare, e.g. from the sun or from
oncoming traffic.
R the windscreen is dirty, misted up or cov-
ered, for instance by asticker, in the vicinity
of the camera.
R the traffic signs are covered, for instance
by dirt, snow or trees.
R the traffic signs are poorly illuminated.
R ther eare ambiguous traffic signs, for
instance near roadworks or on multi-lane
roads.
Traffic signs always have priorit yover the
Speed Limit Assist display. Speed Limit Assist
cannot detec troad and traffic conditions. It is
not asubstitute for attentive driving.
Always pay attention to traffic condition sand
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others. :
Speed Limit Assist camera
Speed Limit Assist shows you detected speed
limits in the multifunction display. Dat afrom Driving systems
193Driving and parking Z

the navigation syste
misalso used for this
purpose. If atraffic sign indicating aspeed
limit or the end of aspeed limit is detected,
it is shown in the multifunction display. If
Speed Limit Assist does not detect any traffic
signs, the speed limit from the digital road
map is taken and shown in the display.
Speed Limit Assist detects the traffic signs
with acamera attached behind the top of the
windscreen.
Information in the multifunction display :
Traffic sign indicating aspeed limit or the
end of aspeed limit (example)
; Speed Limit Assist is available and the
warning function is switched on in the on-
board computer
= Unit sused in the traffic sign displayed
Briefly showing detected traffic signs in
the multifunction display
X Activat ethe Speed Limit Assist warning
function using the on-board computer
(Y page 218).
Symbol ;appears.
At raffic sign indicating aspee dlimi tort he
end of aspeed limit :appears in the mul-
tifunction displayf or around five seconds
as soon as it is detected. Any other infor-
mation in the multifunction displayish id-
den for this period. Permanently showing detected traffic
signs in the multifunction display
X
Display Speed Limit Assist using the on-
board computer (Y page 218).
At raffic sign indicating aspee dlimi tort he
end of aspeed limit :appears in the mul-
tifunction displayass oon as it is detected.
Traffic sign indicating aspeed limit :is
generally displayed until:
R at raffic sign indicating the end of the
speed limit is detected.
R you make aturn.
R you leave or enter atown.
R the road type changes (e.g. motorway,
countryr oad).
R you have travelled acertain minimum
distance without the traffic sign being
repeated or detected again.
i You can also activate Speed Limit Assist
using COMAND APS. The maximum per-
missible speed is then shown in the
COMAND display; see the COMAND APS
operating instructions. Night View Assist Plus
Important safety notes G
WARNING
Night View Assist Plus is only an aid designed
to assist driving and does not relieve you of
the responsibility to pay attention. Continue
to look through the windscreen instead of
relying on the Night View Assist Plus display.
You are responsible for safety and must drive
in accordance with traffic conditions. You
could otherwise endanger yourself and oth-
ers. 194
Driving systemsDriving and parking

The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R the windscreen is dirty, misted up or cov-
ered, for instance by asticker, in the vicinity
of the camera.
R on bends, on uphill gradients or downhill
gradients. G
WARNING
Night View Assist Plus does not detect
object sinthe immediate vicinit yofthe vehi-
cle. Look through the windscreen when
manoeuvring. Make sure that there are no
people or animals in the area in which you are
manoeuvring. In addition to the illumination provided by the
normal headlamps, Night View Assist Plus
uses infrared light to illuminate the road.
Night View Assist Plus camera :picks up
the infrared light and display samonochrome
image in COMAND .The image displayed in
COMAND corresponds to aroad lit up by
main-beam headlamps. This enables you to
see the road's course and any obstacles in
good time. When pedestrian recognition is
active, pedestrians recognised by the system
are highlighted in the Night View Assist Plus
display.
Light from the headlamps of oncomingv ehi-
cles does not affect the Night View Assist Plus
displayint he multifunction display. This is
also the case if you cannot switch on the main-beam headlamps due to oncomingt
raf-
fic.
i Infrared light is not visible to the human
eye and therefore does not dazzle. Night
View Assist Plus can therefore remain
switched on even if there is oncomingt raf-
fic.
Activating Night View Assist Plus Activation conditions
You can only activate Night View Assist Plus
if:
R
the key is in position 2in the ignition lock.
R it is dark.
R the light switch is in the ÃorL posi-
tion.
R reverse gear has not been engaged.
Activating Night View Assist Plus X
Make sure that COMAND APS is switched
on.
X Press button :.
The Night View Assist Plus displaya ppears
in the COMAND display.
You can read about how to adjust the bright-
ness of the COMAND displayint he COMAND
APS operating instructions.
i The infrared headlamps only switch on
when the vehicle is being driven at speeds
of at least 10 km/h. This means that you
do not have the full visual range while sta-
tionary and cannot check whether Night
View Assist Plus is working. Driving systems
195Driving and parking Z

Pedestrian recognition
G
WARNING
Pedestrian recognition may be impaired or
inoperative if:
R pedestrians are partially or entirely
obscured by objects, e.g. by parked vehi-
cles.
R the silhouette of the pedestrian in the Night
View Assist Plus display is incomplete or
interrupted, e.g. by powerful light reflec-
tions.
R pedestrians do not contrast with the sur-
roundings.
R pedestrians are not in an upright position,
e.g. sitting, squatting or lying. :
Night View Assist Plus display
; Pedestrian recognised
= Framing
? Symbol for active pedestrian recognition
i Animals are not recognised by pedestrian
recognition.
Night View Assist Plus can recognise pedes-
trians using typical characteristics, e.g. when
there is asilhouette in the shape of aperson.
Pedestrian recognition is then switched on
automatically if:
R Night View Assist Plus is activated.
R you are driving faster than about 10 km/h.
R the surrounding saredark, e.g .when driv-
ing outside built-up areas without street
lighting. If pedestrian recognition is active, sym-
bol
?appears. If apedestrian is now recog-
nised, they are framed =and thereby high-
lighted. If the pedestrian recognition system
has brought apedestrian to your attention,
look through the windscreen to evaluate the
situation. The actual distance to objectsa nd
pedestrians cannot be gauged accurately by
looking at ascreen.
It may be the case that objectsa re highlighted
as well as pedestrians.
Misted up or dirtyw indscreen If the windscreen in front of the camera is
misted up or dirty on the inside or outside, the
Night View Assist Plus displayisa
ffected.
X To demist: check the automatic air condi-
tioning settings (Y page 130) and fold down
the camera cover (Y page 305).
X To demist the inside of the wind-
screen: fold down the camera cover
(Y page 305) and clean the windscreen
(Y page 304). 196
Driving systemsDriving and parking

Problems with Night View Assist Plus
Problem Possible causes/consequences and
M Solutions
The picture quality of
Night View Assist Plus
has deteriorated. The windscreen wipers are smearing the windscreen.
X
Replace the wiper blades (Y page 121). The windscreen is smeared after the vehicle has been cleaned in
ac
ar wash.
X Cleant he windscreen (Y page 304). There is windscreen chip damage in the camera's field of vision.
X
Replace the windscreen. The windscreen is misted up on the inside.
X
Demist the windscreen (Y page 130). The windscreen is iced up.
X
De-ice the windscreen (Y page 130). There is dirt on the inside of the windscreen.
X
Cleant he inside of the windscreen (Y page 304).Lane Tracking package
General notes The Lane Tracking package consistsofB
lind
Spot Assist (Y page 197) and Lane Keeping
Assist (Y page 199).
Blind Spot Assist Important safety notes
G
WARNING
Blind Spot Assist is only an aid designed to
assist driving. It may fail to detect some vehi-
cles and is no substitute for attentive driving.
Blind Spot Assist cannot detect road and traf-
fic conditions. It may fail to detect narrow
vehicles, such as motorcycles or bicycles, or
only detect them too late.
Monitoring may be affected by dirty sensors,
strongs pray or poor visibility caused by snow,
rain or mist, for example. In this case, vehicles
are detected late or not at all. Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
General notes
Blind Spot Assist uses aradar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from speeds of
30 km/h. Awarning displayint he exterior
mirrors draws your attention to vehicles
detected in the monitored area. If you then
switch on the corresponding turn signal to
change lane, you will also receive an optical
and audible collision warning. For monitoring,
Active Blind Spot Assist uses sensors in the
rear bumper.
For Blind Spot Assist to assist you when driv-
ing, the radar sensor system must be activa-
ted (Y page 225) and operational.
The radar sensor system is automatically
deactivated near radio telescope facilities
(Y page 368). Driving systems
197Driving and parking Z

Monitoring range of the sensors
G
WARNING
Blind Spot Assist monitors certain area sinthe
immediate vicinity of yourv ehicle. Vehicles
that approach and drive past at high speeds
are not detected. There is no display and no
warning.
If the lanes are very wide, it may not be pos-
sible to monitor the complet ewidth of the
neighbourin glane. For this reason, vehicles in
the nextl ane may no tbedetected, especially
if they are driving in astaggered formation in
differen tlanes .This may be the case if vehi-
cles are driving at the edge of their lane that
is furthest away from your vehicle.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others. Blind Spot Assist monitors the area up to
3.0 mbehind your vehicle and directly nextto
your vehicle, as shown in th ediagram.
If th elanes are narrow ,vehicles drivin ginthe
lan ebeyond th elan en exttoy our vehicl emay
be indicated, especially if th evehicles are not
drivin ginthemiddle of their lane. This may
be th ecaseift here are vehicles at th eedge
of their lan enearest your vehicle. Due to th
enature of th esystem:
R warnings may be issued in error when driv-
ingc lose to crash barrier sorsimilar solid
lane borders.
R warnings may be interrupted when driving
alongside long vehicles, for example lor-
ries, for aprolonged time.
The two radar sensors for Blin dSpot Assist
are integrated int othe sides of the rear
bumper .Make sure that th ebumpe risfree of
dirt, ice or slush in the vicinity of the sensors.
The sensors must not be covered, for exam-
ple by cycle racks or overhanging loads. Fol-
lowing asevere impact or in the event of dam-
age to the bumpers, have the function of the
sensors checked at aqualified specialist
workshop. Blind Spot Assist may otherwise
not work properly.
Indicator and warning display G
WARNING
Blind Spot Assist is not active at speeds below
30 km/h. The indicator lamps in the exterior
mirrors are yellow. Vehicles in the monitoring
range are then not indicated.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourselfa nd others. :
Yellow indicator lamp/red warning lamp
If Blind Spo tAssist is switched on, indicator
lamp :in the exterior mirrors lights up yel-
low up to aspeed of 30 km/h. At speeds
above 30 km/h, the indicator lamp goes out
and Blind Spot Assist is operational. 198
Driving systemsDriving and parking

If
av ehicle is detected within the monitoring
range of Blind Spot Assist at speedsa bove
30 km/h, warning lamp :on the corre-
sponding side lights up red. This warning
alwayso ccurs when avehicle enters the blind
spot monitoring range from behind or from
the side. When you overtake avehicle ,the
warning only occurs if the difference in speed
is less than 12 km/h.
The yellow indicator lamp goes out if reverse
gear is engaged. Blind Spot Assist is then
deactivated.
The brightness of the indicator/warning
lampsisa djusted automaticall yaccording to
the ambient light.
Collision warning
If av ehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal ,adouble warning
tone sounds. Red warning lamp :flashes. If
the turn signal remains on, detected vehicles
are indicated by the flashing of red warning
lamp :.There are no further warning tones.
Switching on Blind Spot Assist
X Make sure that the radar sensor system
(Y page 225) and Blind Spot Assist
(Y page 220) are activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Warning lamps :in the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Lane Keeping Assist Important safety notes
G
WARNING
Lane Keeping Assist does not keep your vehi-
cle in its lane. It is only an aid and may detect
the lane markings on the road incorrectly or
not at all. The system may be impaired or may not func-
tion if:
R
there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray.
R there is glare, e.g. from oncomingt raffic,
the sun, or reflection from other vehicles.
R the windscreen is dirty, misted up or cov-
ered, for instancebyas ticker, in the vicinity
of the camera
R several or no lane markings for asingle lane
are present.
R the lane markings are worn away,d ark or
covered up, e.g. by dirt or snow.
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected.
R the lane markings on the road are unclear,
e.g. near roadworks.
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge.
R the road is narrow and winding.
Lane Keeping Assist cannot detect road and
traffic conditions. It is not asubstitute for
attentive driving. You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditionsa nd your surroundings. Otherwise,
you may fail to recognise dangers in time,
cause an accident and injure yourself and oth-
ers. Driving systems
199Driving and parking Z