sensor MERCEDES-BENZ CLS 2014 User Guide

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ABS works fromaspeedof about5mph
(8 km/h)upwards,regardless of road-surface
conditions.ABS works on slippery surfaces,
evenifyou only brake gently.
The yellowABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running.
Braking
XIf ABS intervenes:continue to depress the
brake pedal vigorously until the braking
situation is over.
XTo makeafull brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel
apulsing in the brake pedal.
The pulsating brake pedal can be an
indication of hazardous road conditions, and
functions asareminder to take extracare
while driving.
BAS (Brake Assist System)
iObserve the "Important safety notes"
section (Ypage 66).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergencybraking situation is
increased. There isarisk of an accident.
In an emergencybraking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
BAS operates in emergencybraking
situations. If you depress the brake pedal
quickly, BAS automatically boosts the braking
force, thus shortening the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
BAS PLUS (Brake Assist System
PLUS)
General information
iObserve the "Important safety notes"
section (Ypage 66).
BAS PLUS is only available in vehicles
equipped with DISTRONIC PLUS.
For BAS PLUS to assist you when driving, the
radar sensor system must be:
Ractivated (Ypage 232)
Roperational
With the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
If the radar sensor system is malfunctioning,
BAS PLUS will not be available. The brake
system is still available with complete brake
boosting effect and BAS.
BAS PLUS provides braking assistance in
hazardous situations at speeds greater than
4mph (7 km/h).
At speeds of up to approximately 40 mph
(70 km/h),BAS PLUS can also react to
stationary objects. Examples of stationary
objectsare stopped or parked vehicles.
Important safety notes
GWARNING
BAS PLUS cannot alwaysclearly identify
objectsand complex traffic situations. BAS
PLUS cannot intervene in these cases. There
isarisk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
GWARNING
BAS PLUS does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossingtraffic
Rwhen cornering
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Asaresult, BAS PLUS may not intervene in all
critical situations. There isarisk of an
accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
Rdirt on the sensorsoranythingelse
covering the sensors
Rsnow or heavy rain
Rinterference by other radar sources
Rthere are strong radar reflections, for
example in parking garages
Ranarrow vehicle travelinginfront, e.g. a
motorbike
Ravehicle travelinginfrontonadifferent line
relative to the center of your vehicle
Following damage to the frontend of the
vehicle, have the configurationand operation
of the radarsensorschecked ataqualified
specialist workshop. This also applies to
collisions at low speeds where thereisno
visible damage to the frontofthe vehicle.
Braking assistance
To preventacollision with the vehicle in front,
BAS PLUS calculates the brake force
necessary if:
Ryou approach an obstacle, and
RBAS PLUS has detectedarisk of collision
When driving ataspeed under 20 mph
(30 km/h):ifyou depress the brake pedal,
BAS PLUS is activated. The increase in brake
pressure will be carried out at the last
possible moment.
When driving ataspeed greater than
20 mph (30 km/h):ifyou depress the brake
pedal sharply, BAS PLUS automatically raises
the brake pressure toavalue adapted to the
traffic situation.
If BAS PLUS demands particularly high
braking force, preventative passenger
protection measures (PRE-SAFE®)are
activated simultaneously.
XKeep the brake pedal depressed until the
emergencybraking situation is over.
ABS preventsthe wheels from locking.
BAS PLUS is deactivated and the brakes
function as usual if:
Ryou release the brake pedal
Rthere is no longerarisk of collision
Rno obstacle is detected in front of your
vehicle
ESP®(Electronic Stability Program)
Important safety notes
iObserve the "Important safety notes"
section (Ypage 66).
GWARNING
If ESP®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further
driving safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP®checked at a
qualified specialist workshop.
!Vehicles with 4MATIC: switch off the
ignition when the parking brake is being
tested onabrake dynamometer.
Application of the brakes by ESP®may
otherwise destroy the brake system.
Vehicles without 4MATIC: observe the notes
on ESP®(Ypage 330) when towing the
vehicle witharaised rear axle.
ESP®is deactivated if the warning lamp
in the instrument cluster lights up
continuously when the engine is running.
If thewarning lamp and the
warning lamp are lit continuously, ESP®is not
available due toamalfunction.
Observe the information on warning lamps
(Ypage 269) and display messages which
may be shown in the instrument cluster
(Ypage 238).
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ADAPTIVE BRAKE
ADAPTIVEBRAKE enhancesbraking safety
and offers increased braking comfort.In
addition to thebraking function,ADAPTIVE
BRAKE also has theHOLDfunction
(Ypage 186) and hill start assist
(Ypage 150).
PRE-SAFE®Brake
Generalinformation
iObservethe"Importantsafetynotes"
section(Ypage 66).
PRE-SAFE®Brakeisonly available in vehicles
with DISTRONIC PLUS.
If PRE-SAFE®Brakeistoaid you, the radar
sensorsystem mustbe:
Ractivated (Ypage 232)
Roperational
With the help of the radar sensor system,
PRE-SAFE®Brakecan detectobstacles that
are in frontofyour vehicle for an extended
period of time.
PRE-SAFE®Brakecan help you to minimize
the risk ofacollision withavehicle ahead or
reduce the effects of suchacollision. If PRE-
SAFE®Brakehas detectedarisk of collision,
you will be warned visually and acoustically
as well as by automatic braking. PRE-SAFE®
Brakecannot preventacollision withoutyour
intervention.
At speeds of up to approximately 40 mph
(70 km/h)PRE-SAFE®Brake can also detect
stationary objects. Examples of stationary
objectsare stopped or parked vehicles.
Important safety notes
GWARNING
PRE-SAFE®Brake will initially brake your
vehicle byapartial application of the brakes
ifadanger of collision is detected. There may
beacollision unless you also brake.
Automatic emergencybraking cannot prevent
acollision. There isarisk of an accident.
Always apply the brakes yourself and try to
take evasive action.
GWARNING
PRE-SAFE®Brake cannot alwaysclearly
identify objects and complextraffic
conditions.
In these cases, PRE-SAFE®Brake may:
Rgive an unnecessary warning and then
brake the vehicle
Rnot giveawarning or intervene
There isarisk of an accident.
Always pay particular attention to the traffic
situation and be readytobrake, especially if
PRE-SAFE®Brake warns you.Terminate the
intervention inanon-critical driving situation.
In particular, the detection of obstacles can
be impaired if there is:
Rdirt on the sensors or anything else
covering the sensors
Rsnow or heavy rain
Rinterference by other radarsources
Rthere are strongradar reflections, for
example in parking garages
Ranarrow vehicle traveling in front,e.g. a
motorbike
Ravehicle traveling in front onadifferent line
relative to the center of your vehicle
GWARNING
PRE-SAFE®Brake does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossingtraffic
Rwhen cornering
Asaresult, PRE-SAFE®Brake may neither
give warnings nor intervene in all critical
situations. There isarisk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
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Safety

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In order to maintain the appropriatedistance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself.
Due to the nature of the system, particularly
complicated driving conditionsmay cause
unnecessarywarningsortheunnecessary
intervention of PRE-SAFE®Brake.
Followingdamagetothe front end of the
vehicle, have the configurationand operation
of the radarsensorschecked ataqualified
specialist workshop. This also applies to
collisions at low speeds where thereisno
visible damage to the frontofthe vehicle.
Function
XTo activate/deactivate:activate or
deactivate PRE-SAFE®Brake in the on-
board computer (Ypage 228).
If the PRE-SAFE®Brake is not activated, the
symbol appears in the multifunction
display.
If you approachavehicle in front very quickly,
this function warns you fromaspeed of
approximately4mph (7 km/h). An
intermittent warning tone sounds and the
distance warning signal lamp in the
instrumentcluster lightsup.
XBrake immediately to defuse the situation.
or
XTake evasiveaction provided it is safe to do
so.
Fromaspeed of approximately4mph
(7 km/h), if the driver and frontpassenger
have fastened their seat belts, PRE-SAFE®
Brakecan brake the vehicle automatically at
speeds up to approximately 124 mph
(200 km/h).
You can preventthe intervention of the PRE-
SAFE®Brakeatany time by:
Rdepressingthe accelerator pedal further.
Ractivating kickdown.
Rreleasing the brake pedal.
The brakingaction of PRE-SAFE®Brakeis
ended automatically if:
Ryou maneuver to avoid the obstacle.
Rthereisnolonger any danger ofarear-end
collision.
Rthereisnolonger an obstacle detected in
frontofyour vehicle.
If you approach an obstacle and PRE-SAFE®
Brakedetectsarisk ofacollision, the system
will alert you both visually and acoustically. If
you do not brake or takeevasive action,the
system will warn you by automatically braking
the vehicle gently. If thereisanincreased risk
of collision, preventative passenger
protection measures (PRE-SAFE®)are
activated (Ypage 54). Ifarisk of collision
remains at speeds of over 20 mph
(30 km/h) and you do not brake, takeevasive
action or significantly accelerate, automatic
brakingmay be performed up to and including
emergency braking. Automatic emergency
brakingisnot performed until immediately
prior to an accidentthat can no longer be
avoided.
Theftdeterrent locking system
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
XTo activate with the SmartKey:remove
the SmartKey from the ignition lock.
XTo activate with KEYLESS-GO:switchthe
ignition off and open the driver'sdoor.
XTo deactivate:switchonthe ignition.
When leaving the vehicle, always takethe
SmartKey with you and lock the vehicle.
Anyone can start the engineifavalid
SmartKey has been left inside the vehicle.
iThe immobilizer is always deactivated
when you start the engine.
In the event that the enginecannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
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If you do not open the vehicle within
approximately 40 seconds of unlocking:
Rthe vehicle is locked again.
Rthe theft deterrent locking system is
armed again.
XTo lockcentrally:pressthebutton.
The SmartKey centrally locks/unlocks:
Rthedoors
Rthetrunk lid
Rthefuel filler flap
The turnsignals flash oncewhen unlocking
and three times when locking.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Ypage 232).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Ypage 231).
KEYLESS-GO
General notes
Bear in mind that the engine can be started
by any of the vehicle occupants if there is a
KEYLESS-GO key in the vehicle.
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a
conventional SmartKey. Unlock the vehicle
by using KEYLESS-GO, for instance, and lock
it using thebutton on the SmartKey.
When locking or unlocking with KEYLESS-GO,
the distance between the SmartKey and the
corresponding door handle must not be
greater than3ft(1m).
KEYLESS-GO checkswhetheravalid
SmartKey is in the vehicle by periodically
establishingaradio connection between the
vehicle and the SmartKey. This happens:
Rwhen the external door handles are
touched
Rwhen startingthe engine
Rwhile the vehicle is in motion
XTo unlock the vehicle:touch the inner
surface of the door handle.
XTo lock the vehicle:touch sensor
surface.
XConvenience closing feature:touch
recessed sensor surfacefor an
extended period.
XTo unlock the trunk lid:pull the handle on
the trunk lid.
Further information on the convenience
closing feature (Ypage 90).
Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you
frequently travel on your own.
XTo change the setting:press and hold
down theandbuttons on the
SmartKey simultaneously for
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approximately six seconds until thebattery
check lamp flashes twice (Ypage 79).
iIf thesettingofthelockingsystem is
changed within thesignal range of the
vehicle,pressingtheorbutton:
Rlocks or
Runlocksthevehicle
The SmartKey nowfunctionsasfollows:
XTo unlock thedriver's door:pressthe
buttononce.
XTo unlock centrally:pressthe
buttontwice.
XTo lock centrally:pressthebutton.
The KEYLESS-GO function is changed as
follows:
XTo unlock thedriver's door:touch the
inner surface of thedoor handle on the
driver'sdoor.
XTo unlock centrally:touch theinner
surface of thedoor handle on thefront-
passenger door or therear door.
XTo lock centrally:touch theoutersensor
surface on one of the door handles.
XTo restorethe factorysettings:press
and hold down theandbuttons
simultaneously for approximately six
seconds until the batterychecklamp
flashes twice (Ypage 79).
Mechanicalkey
General notes
If thevehicle can no longer be lockedor
unlocked withtheSmartKey, use the
mechanical key.
If you use themechanical keytounlock and
open thedriver'sdoor or thetrunk lid, the
anti-theftalarm system will be triggered
(Ypage 74).
There are several ways to turnoff the alarm:
XTo turn the alarm off with the
SmartKey:press theorbutton
on the SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO:press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flapwill not be unlocked
automatically.
XTo unlock thefuel filler flap:insert the
SmartKey intothe ignition lock.
Removing themechanical key
Release catch
Mechanical key
XPush release catchin the direction of
the arrow and at the same timeremove
mechanical keyfromthe SmartKey.
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Convenience opening
XPointthe tip of the SmartKey at the driver's
door handle.
XPress and hold thebutton until the
side windows and the sliding sunroof are in
the desired position.
XTo interrupt convenienceopening:
release thebutton.
Convenienceclosing feature
Important safety notes
Information on the side window reversing
feature (Ypage 88).
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small
fingers
Rover the last4mmofthe closing movement
Rduring resetting
Rwhen closing the sliding sunroof again
manually immediately after automatic
reversing
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There isarisk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefly in any direction
The closing process is stopped.
GWARNING
When the convenience closing feature is
operating, parts of the body could become
trapped in the closing area of the side window
and the sliding sunroof. There isarisk of
injury.
Observe the complete closing procedure
when the convenience closing feature is
operating. Make sure that no body parts are
in close proximity during the closing
procedure.
Proceed as follows if someone is trapped:
With the SmartKey:
Rrelease thebutton.
Rpress and hold thebutton until the
side windows and the sliding sunroof or the
panorama roof with power tilt/sliding
panel open again.
Using KEYLESS-GO:
Rrelease the sensor surface on the door
handle.
Rpull the door handle immediately and hold
it.
The side windows and the sliding sunroof
or the panorama roof with power tilt/
sliding panel open.
General notes
When you lock the vehicle, you can
simultaneously:
Rclose the side windows
Rclose the sliding sunroof
Using the SmartKey
The SmartKey must be close to the driver's
door handle.
XPoint the tip of the SmartKey at the driver's
door handle.
XPress and hold thebutton until the
side windows and the sliding sunroof are
fully closed.
XMake sure that all the side windows and the
sliding sunroof are closed.
XTo interrupt convenienceclosing:
release thebutton.
Using KEYLESS-GO
The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed.
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XTouch recessed sensor surfaceon the
door handle until the side windows and the
sliding sunroof are fully closed.
iMake sure you only touch recessed
sensor surface.
XMake sure that all the side windows and the
sliding sunroof are closed.
XTo interrupt convenience closing:
release recessed sensor surfaceon the
door handle.
Resetting the side windows
Ifaside window can no longer be closed fully,
you must reset it.
XClose all the doors.
XTurn the SmartKey to position1or2in the
ignition lock.
XPull the corresponding switch on the door
control panel until the side window is
completely closed (Ypage 89).
XHold the switch for an additional second.
If the side window opens again slightly:
XImmediately pull the corresponding switch
on the door control panel until the side
window is completely closed (Ypage 89).
XHold the switch for an additional second.
XIf the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly.
If this is not the case, repeat the steps
above again.
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Automaticanti-glaremirrors
The rear-view mirror and theexteriormirror
on thedriver'sside automatically go intoanti-
glaremodeifthefollowingconditionsare met
simultaneously:
Rthe ignition is switched on and
Rincident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior
lighting is switched on.
Parking position for the exterior
mirror on the front-passenger side
Setting and storing the parking position
Using reverse gear
Button for the driver's side exterior mirror
Button for the front-passenger side
exterior mirror
$Adjustment button
!Memory buttonM
You can position the front-passenger side
exterior mirror in suchaway that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position.
XPark the vehicle and turn the SmartKey to
position2in the ignition lock
(Ypage 147).
XPress buttonfor the exterior mirror on
the front-passenger side.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse adjustmentbutton$to adjust the
exterior mirror toaposition that allows you
to see the rear wheel and the curb.
The parking position is stored.
iIf you shift the transmission to another
position, the exterior mirror on the front-
passenger side returnstothe driving
position.
Using the memorybutton
Button for the driver's side exterior mirror
Button for the front-passenger side
exterior mirror
$Adjustment button
!Memory buttonM
You can position the front-passenger side
exterior mirror in suchaway that you can see
the rear wheel on that side as soon as you
engage reverse gear. This setting can be
stored using memory buttonM!.
XTurn the SmartKey to position2in the
ignition lock (Ypage 147).
XWith the exterior mirror on the front-
passenger side activated, use adjustment
button$to adjust the exterior mirror. In
the exterior mirror, the rear wheel and the
curb should be visible.
Mirrors111
Seats, steering wheel and mirrors
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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).
Exterior lighting
Generalnotes
For reasonsofsafety, Mercedes-Benz
recommends that you drive with the lights
switched on even during the daytime.
Therefore, your vehicle is equipped with
special daytime running lamps. In some
countries, operation of the headlamps varies
due to legal requirements and self-imposed
obligations.
If you wish to drive during the daytime without
lights, switchoff the daytime running lamps
function in the on-board computer
(Ypage 230).
Driving abroad
Symmetrical low-beam headlamps
Switchthe headlamps to symmetrical low
beam in countries in which traffic drives on
the opposite side of the road from the country
where the vehicle is registered. This prevents
glare to oncoming traffic. When using
symmetrical lights, the edge of the road is not
lit as widely and as far ahead as normal.
Have the headlamps converted ataqualified
specialist workshop as close to the border as
possible before drivinginthesecountries.
Asymmetrical low beam
Have the headlamps converted back to
asymmetrical low-beam headlamps at a
qualified specialist workshop as soon as
possible after crossing the border again.
Setting the exterior lighting
Setting options
Exterior lightingcan be set using:
Rthe light switch
Rthe combination switch(Ypage 119)
Rthe on-board computer (Ypage 230)
Light switch
Operation
Left-handstanding lamps
\nRight-hand standing lamps
Parkinglamps, licenseplate and
instrumentclusterlighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
If you hearawarningtonewhen you leave the
vehicle, the lightsmay still be switched on.
XTurn the light switchto\r.
116Exterior lighting
Light sa nd windshield wipers

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