2014 MERCEDES-BENZ CLS warning

The brightness of the indicator/warning
lamps is adjusted automatically accordingto
the ambient light.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes andavehicle is detected in the side
monitoring range, you receiveavisual and
acoustic collision warning. You then hear a
double warning toneand red warning
lampflashes. If the turn signal remains on,
detected vehicles are indicated by the
flashing of red warning lamp.There are no
further warning tones.
Course-correcting brake application
GWARNING
Acourse-correctingbrake application cannot
alwayspreventacollision. There isarisk of
an accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makesacourse-correcting brake
application. Always maintainasafe distance
at the sides.
If Active Blind Spot Assist detectsarisk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision.
Ifacourse-correcting brake application
occurs, red warning lampflashes in the
exterior mirror andadual warning tone
sounds. In addition, the display shown in the
lower image appears in the multifunction
display.
In very rare cases, the system may make an
inappropriate brake application. An
inappropriate course-correcting brake
application may be interrupted at any time if
you steer slightly in the opposite direction or
accelerate, for example.
The course-correcting brake application is
available in the speed range between
20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, oracourse-
correcting brake application adapted to the
driving situation occurs if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your
vehicle.
Ravehicle approaches you too closely at the
side.
Ryou have adoptedasporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Radriving safety system intervenes, e.g.
ESP®or PRE-SAFE®Brake.
RESP®is switched off.
Raloss of tire pressure oradefectivetire is
detected.
Switching on Active Blind Spot Assist
XMake sure that the radar sensor system
(Ypage 232) and Active Blind Spot Assist
(Ypage 228) are activated in the on-board
computer.
XTurn the SmartKey to position2in the
ignition lock.
Warning lampsin the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Driving systems213
Driving and parking
Z

Active LaneKeeping Assist
Generalnotes
Active LaneKeepingAssistmonitorsthe area
in front of your vehicle by means of
cameraat the top of the windshield. Active
Lane Keeping Assist detectslane markings on
theroad and warnsyou before you leave your
lane unintentionally. If you do notreact to the
warning,alane-correctingapplication of the
brakes can bring the vehicle back intothe
original lane.
If you have chosen the functionDisplay
Unit Speed-/Odometer:(Ypage 229)and
selected the display unitkmin the on-board
computer, Active Lane Keeping Assist
supports you fromaspeed of 60 km/h. If
milesis selected as the display unit, the
assistancerange begins at 40 mph.
For Active Lane Keeping Assist to assist you
when driving, the radar sensor system must
be operational.
Important safetynotes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accidentnor override the laws of
physics. Active Lane Keeping Assist cannot
take into account road, weather or traffic
conditions. It cannot detect possible road and
traffic conditions. Active Lane Keeping Assist
is only an aid. You are responsible for the
distance to the vehicle in front,for vehicle
speed, for braking in good time and for
staying in your lane.
Active Lane Keeping Assist cannot
continuously keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
Rgive an unnecessary warning and then
makeacourse-correcting brake application
to the vehicle
Rnot giveawarning or intervene
There isarisk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you.
Terminate the intervention inanon-critical
driving situation.
The system may be impaired or may not
function if:
Rthere is poor visibility, e.g. due to
insufficient illumination of the road, or due
to snow, rain, fog or spray
Rthere is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
Rthe windshield is dirty, fogged up, damaged
or covered, for instance byasticker, in the
vicinityofthe camera
Rthe radar sensors in the front or rear
bumper or in the radiator grill are dirty, e.g.
due to snow
Rthere are no, several or unclear lane
markings foralane, e.g. in areas with road
construction work
Rthe lane markings are worn away,dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
Rthe lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
214Driving systems
Driving and parking

Rthe roadisnarrow and winding
Rthere arestrong shadows castonthe lane
If no vehicle is detected in the adjacent lane
and there are broken lane markings detected,
no lane-correcting brake application is made.
Warning vibration in the steering wheel
Awarning may be given ifafront wheel
passes overalane marking. It will warn you
by means of intermittent vibration in the
steering wheel for up to 1.5 seconds.
Lane-correcting brake application
GWARNING
Alane-correcting brake application cannot
always bring the vehicle back into the original
lane. There isarisk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makesalane-correcting brake
application.
GWARNING
Active Lane Keeping Assist does not detect
traffic conditionsorroad users. In very rare
cases, the system may make an inappropriate
brake application, e.g. after intentionally
driving overasolid lane marking. There is a
risk of an accident.
An inappropriate brake application may be
interrupted at any time if you steer slightly in
the opposite direction. Always make sure that
there is sufficient distance on the side for
other traffic or obstacles.
If you leave your lane, under certain
circumstances the vehicle will brake briefly
on one side. This is meant to assist you in
bringing the vehicle back to the original lane.
Ifalane-correcting brake application occurs,
displayappears in the multifunction
display.
This function is available in the range between
40 mph and 120 mph (60 km/h and
200 km/h).
Alane-correcting brake application can only
be made after driving overasolid,
recognizable lane marking. Before this, a
warning must be given by means of
intermittent vibration in the steering wheel.
In addition,alane with lane markings on both
sides must be recognized. The brake
application also slightly reduces vehicle
speed.
iAfurther lane-correcting brake
application can only occur after your
vehicle has returned to the original lane.
No lane-correcting brake application occurs
if:
Ryou clearly and actively steer, brake or
accelerate.
Ryou cut the corner onasharp bend.
Ryou have switched on the turn signals.
Radriving safety system intervenes, e.g.
ESP®,PRE-SAFE®Brake or Active Blind
Spot Assist.
Ryou have adoptedasporty driving style with
high cornering speeds or high rates of
acceleration.
RESP®is switched off.
Rthe transmission is not in positionD.
Raloss of tire pressure oradefective tire has
been detected and displayed.
Active Lane Keeping Assist may is unable to
detect other road or traffic conditions. An
inappropriate brake application may be
interrupted at any time if you:
Driving systems215
Driving and parking
Z

Rsteer slightly in the opposite direction
Ruseaturn signal
Rclearly brake or accelerate
Alane-correcting brakeapplicationis
interrupted automatically if:
Radrivingsafetysystem intervenes,e.g.
ESP®,PRE-SAFE®Brake or ActiveBlind
Spot Assist.
Rlane markings can no longer be recognized.
Switching on Active Lane Keeping Assist
XSwitch on ActiveLane KeepingAssist using
the on-board computer;todoso, select
StandardorAdaptive(Ypage 229).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistancegraphicsdisplay
(Ypage 227)are shown in green.Lane
KeepingAssist is ready for use.
IfStandardis selected, no warning
vibration occurs if:
Ryou have switched on the turnsignals.In
thisevent, the warnings aresuppressed
foracertainperiodoftime.
Radriving safety systemintervenes, such
as ABS, BAS or ESP®.
IfAdaptiveis selected, no warning
vibrationoccurs if:
Ryouhaveswitched on the turnsignals.In
thisevent, the warnings aresuppressed
foracertainperiodoftime.
Radriving safety systemintervenes, e.g.
ABS, BAS or ESP®.
Ryouaccelerate hard, e.g.kickdown.
Ryou brakehard.
Ryou steer actively, e.g. swervetoavoid
an obstacle or change lanes quickly.
Ryou cut the corner onasharp bend.
In order that you are warnedonly when
necessary and in good timeifyou cross the
lane marking, the system recognizes certain
conditions and warns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. a
highway.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner onabend.
216Driving systems
Driving and parking

Useful information............................218
Importantsafetynotes....................218
Displays and operation....................219
Menus and submenus......................222
Display messages.............................237
Indicator and warning lampsinthe
instrument cluster............................264
217
On-boar dc omputer and displays

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please notethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related systemsand functions.
iRead the information on qualified
specialist workshops: (Ypage 26).
Important safetynotes
GWARNING
If you operate information systemsand
communication equipment integrated in the
vehicle while driving, you will be distracted
from traffic conditions. You could also lose
controlofthe vehicle. There isarisk of an
accident.
Only operate the equipment when the traffic
situationpermits.Ifyou are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary.
GWARNING
If the instrument cluster has failed or
malfunctioned, you may not recognize
function restrictions in systems relevant to
safety. The operating safety of your vehicle
may be impaired. There isarisk of an
accident.
Drive on carefully. Have the vehicle checked
ataqualified specialist workshop
immediately.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the
multifunction display.You should therefore
make sure your vehicle is operating safely at
all times. Otherwise,avehicle that is not
operating safely may cause an accident.
For an overview, see the instrument panel
illustration (Ypage 31).
218Important safety notes
On-board computer and displays

Displaysandoperation
Instrument cluster
Speedometer withsegments (Ypage 220)
Multifunction display (Ypage 221)
$Tachometer (Ypage 219)
!Coolant temperature (Ypage 219)
Fuelgauge
Coolant temperaturedisplay
GWARNING
Opening thehoodwhen theengineis
overheated or when there isafireinthe
enginecompartmentcould expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there isafire in the
engine compartment, keep the hood closed
and contact the fire department.
!Adisplay message is shown if the coolant
temperature is too high.
If the coolanttemperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolanttemperature gauge is in the
instrument cluster on the left-hand side
(Ypage 31).
Under normal operatingconditions and with
the specified coolant level, the coolant
temperature may rise to 248‡(120 †).
Tachometer
!Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protectthe
engine when the red band is reached.
Displays and operation219
On-board computer and displays
Z

VideoDVD operation
Example:CD/DVD changerdisplay
Currentscene
XSwitch on COMANDand select video DVD;
see the separate operating instructions.
XPress the\norbutton on the
steering wheeltoselect theAudiomenu.
XTo select the next/previous scene:
brieflypress theorbutton.
XTo selectascene from thescene list
(rapid scrolling):press and hold the
orbuttonuntil desired
scenehasbeenreached.
Telephonemenu
Introduction
GWARNING
If youoperate informationsystems and
communication equipmentintegratedin the
vehiclewhile driving, you will be distracted
from traffic conditions. You could also lose
control of thevehicle. There isariskofan
accident.
Only operate theequipmentwhen the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary.
When telephoning, you must observe the
legal requirements for the countryinwhich
you are currently driving.
XSwitch on the mobile phone (see the
separate operating instructions).
XSwitch on COMAND (see the separate
operating instructions).
XEstablishaBluetooth®connection to
COMAND; see the separate operating
instructions.
XPress the\norbutton on the
steering wheel to select theTelmenu.
You will see one of the following display
messages in the multifunction display:
RPhone READYor the name of the network
provider: the mobile phone has found a
network and is ready to receive.
RPhone No Service:there is no network
available or the mobile phone is searching
foranetwork.
Acceptingacall
Example: incoming call
XPress thebutton on the steering
wheel to acceptanincoming call.
If someone calls youwhenyouareinthe
Telmenu,adisplay message appearsinthe
multifunctiondisplay.
You can acceptacall even if you are not in
theTelmenu.
Rejecting or endingacall
XPress thebutton on the steering
wheel.
You can end or rejectacall even if you are not
in theTelmenu.
Dialinganumberfrom the phone book
XPress the\norbutton on the
steering wheel to select theTelmenu.
XPress the,orbutton to
switch to the phone book.
226Menus and submenus
On-board computer and displays