2014 MERCEDES-BENZ CLS stop start

Centerbefore seating any child on the front
passenger seat.
GWARNING
Objects between the seat surface and the
child restraint system could affect the
function of the OCS. This could result in the
front-passenger frontair bag not functioning
as intended during an accident. This poses an
increased risk of injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. Make
sure that the bottom and back of the child
restraint system make full contact with the
front-passenger seat cushion and backrest.
Always comply with the child restraint system
manufacturer's installation instructions.
The PASSENGER AIR BAG OFF indicator lamp
lights up:
Rif you turn the SmartKey in the ignition lock
to position1or2
Rif you press the KEYLESS-GO Start/Stop
button onceortwice on vehicles with
KEYLESS-GO
Rif an adult is seated properly on the front-
passenger seat and the OCS classifies the
occupant as an adult
The PASSENGER AIR BAG OFF indicator
lamp goes out again after approximately six
seconds.
If the seat is not occupied and the OCS
system detects that the front-passenger
seat is empty, the PASSENGER AIR BAG
OFF indicator lamp will continue to light up.
The PASSENGER AIR BAG OFF indicator
lamp will not go out.
For more information about the OCS, see
"Problems with the Occupant Classification
System"(Ypage 52).
Occupant safety51
Safety
Z

Beltheight adjustment
Youcan adjustthe seat belt height on the
front seats. Adjust the belt toaheight that
allowsthe upper part of the seat belt to be
routed across the center of your shoulder.
XTo raise:slide the belt sash guide upwards.
The belt sash guide engages in various
positions.
XTo lower:press and hold belt sash guide
release.
XSlide the belt sash guide downwards.
XRelease belt sash guide releaseand
make sure that the belt sash guide has
engaged.
Releasing seat belts
!Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Visitaqualified specialist
workshop.
XPress release button!on belt buckle$.
XGuidebelt tongueto belt sash
guide.
Belt warning for the driver and front
passenger
Regardless of whether the driver's and front-
passenger seat belts have already been
fastened, theseat belt warning lamp
lights up for six seconds each time the engine
is started. It then goes out if the driver and
the front passenger have already fastened
their seat belts.
If the driver's seat belt is not fastened when
the engine is started, an additional warning
tone will sound. This warning tone stops after
amaximum of six seconds or once the
driver's seat belt is fastened.
If after six seconds, the driver or front
passenger have not fastened their seat belts
and the doors are closed:
Rtheseat belt warning lamp remains lit
as long as the driver's or front-passenger's
seat belt is not fastened
and
Rifavehicle speed of 15 mph (25 km/h) is
exceeded, theseat belt warning lamp
begins to flash.Awarning tone also sounds
withincreasing intensityforamaximum of
58Occupant safety
Safety

If ESP®detects that the vehicle is deviating
from the direction desiredbythe driver, one
or more wheels are braked to stabilize the
vehicle.The engine output is also modified to
keep the vehicle on the desired course within
physical limits. ESP®assists the driver when
pulling away on wet or slippery roads. ESP®
can also stabilize the vehicle during braking.
If ESP®intervenes, theESP®warning
lamp flashes in the instrumentcluster.
If ESP®intervenes:
XDo not deactivateESP®under any
circumstances.
XOnly depressthe accelerator pedal as far
as necessary when pulling away.
XAdapt your drivingstyle to suit the
prevailing road and weatherconditions.
iOnly use wheels with the recommended
tire sizes. Only then will ESP®function
properly.
ETS/4ETS (Electronic Traction System)
ETS/4ETS traction control is part of ESP®.
Traction control brakes the drive wheels
individuallyifthey spin. This enables you to
pull away and accelerate on slippery surfaces,
for example if the road surface is slippery on
one side. In addition, more drive torque is
transferred to the wheel or wheels with
traction.
Traction control remains active, even if you
deactivate ESP®.
Deactivating/activating ESP®(except
AMG vehicles)
GWARNING
If you deactivate ESP®,ESP®no longer
stabilizes the vehicle. There is an increased
risk of skidding and an accident.
Only deactivate ESP®in the situations
described in the following.
!Avoid spinningthe driven wheels for an
extended period with ESP®deactivated.
You could otherwise damage the drivetrain.
XTo deactivate:(Ypage 227).
The ESP®OFF warning lamp in the
instrument cluster lights up.
XTo activate:(Ypage 227).
The ESP®OFF warning lamp in the
instrument cluster goes out.
ESP®is activated automatically when the
engine is started.
The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving. The engine starts
automatically when the driver wants to pull
away again. ESP®remains in its previously
selected status. Example: if ESP®was
deactivated before the engine was switched
off, ESP®remains deactivated when the
engine is switched on again.
If ESP®is deactivated and one or more wheels
start to spin, theESP®warning lamp in
the instrument cluster flashes. In such
situations, ESP®will not stabilize the vehicle.
It may be best to deactivate ESP®in the
following situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
If you deactivate ESP®:
RESP®no longer improves driving stability.
Rtraction control is still activated.
RESP®still provides support when you
brake.
Rengine torque is not limited and the drive
wheels are able to spin. The spinning
wheels produceacutting effect for better
traction.
Driving safety systems69
Safety
Z

Deactivating/activating ESP®(AMG
vehicles)
Activating/deactivating SPORT handling
mode
GWARNING
WhenSPORT handling mode is activated,
there isagreater risk of skidding and
accidents.
Only activateSPORT handling mode in the
situations described in the following.
XTo activate:briefly press button.
TheSPORT handling mode warning
lamp in the instrument cluster lights up.
TheSPORT handling modemessage
appears in the multifunction display.
SPORT handling mode is designed for
driving on designated roads when the
vehicle's own oversteering and
understeering characteristics are desired.
DrivinginSPORT handling mode requires
an extremely qualified and experienced
driver who is able to cope with these critical
driving conditions.
XTo deactivate:briefly press button.
TheSPORT handling mode warning
lamp in the instrument cluster goes out.
ESP®is activated automatically when the
engine is started.
It may be best to activateSPORT handling
mode in the following situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
If SPORT handling mode is activated and one
or more wheels start to spin, theESP®
warning lamp in the instrument cluster
flashes. ESP®only stabilizes the vehicle to a
limited degree.
When SPORT handling mode is activated:
RESP®only improves driving stability to a
limited degree.
Rtraction control is still activated.
RESP®still provides support when you
brake.
Rengine torque is only restricted toalimited
degree, and the drive wheels are able to
spin. The spinningwheels produce a
cutting effect for better traction.
Vehicles with ECO start/stop function: the
ECO start/stop function switches the engine
off automatically when the vehicle comes to
astop. The engine startsautomatically when
the driver wants to pull away again. ESP®
remains in its previously selected status. For
example, if ESP®was deactivated before the
engine was switched off, ESP®remains
deactivated when the engine is switched on
again.
Deactivating/activating ESP®
GWARNING
If you deactivate ESP®,ESP®no longer
stabilizes the vehicle. There is an increased
risk of skidding and an accident.
Only deactivate ESP®in the situations
described in the following.
!Avoid spinningthe driven wheels for an
extended period with ESP®deactivated.
You could otherwise damage the drivetrain.
70Driving safety systems
Safety

XTo deactivate:press buttonuntilthe
ESP®OFF warning lamp lights up in
the instrument cluster.
TheOFFmessage appearsinthe
multifunctiondisplay.
Deactivate ESP®when drivingon
designated roads when the vehicle's own
oversteeringand understeering
characteristics are desired. Drivingwithout
ESP®requiresanextremely qualified and
experienced driverwho is able to cope with
these critical driving conditions.
XTo activate:briefly press button.
The ESP®OFF warning lamp in the
instrumentcluster goes out. TheON
message appears in the multifunction
display.
ESP®is activated automatically when the
engine is started.
If ESP®is deactivated and one or morewheels
start to spin,theESP®warninglamp in
the instrumentcluster does not flash. In such
situations, ESP®will not stabilize the vehicle.
It may be best to deactivateESP®in the
followingsituations:
Rwhen using snowchains
Rin deep snow
Ron sand or gravel
If you deactivateESP®:
RESP®no longer improves drivingstability.
Rtraction control is still activated.
RPRE-SAFE®is no longer available, nor is it
activated if you brakefirmly and ESP®
intervenes.
RPRE-SAFE®Brake is no longer available, it
is also not activated if you brakefirmly and
ESP®intervenes.
RESP®still provides support when you
brake.
Rengine torque is no longer limited and the
drive wheels are able to spin.The spinning
wheels produceacuttingeffect for better
traction.
Vehicles with ECO start/stop function: the
ECO start/stop function switches the engine
off automatically when the vehicle comes to
astop. The engine starts automatically when
the driver wants to pull away again. ESP®
remains in its previously selected status. For
example, if ESP®was deactivated before the
engine was switched off, ESP®remains
deactivated when the engine is switched on
again.
EBD (electronic brake force
distribution)
iObserve the "Important safety notes"
section (Ypage 66).
GWARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This
increases the risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked ataqualified
specialist workshop.
Observe information regarding indicator and
warning lamps (Ypage 267) as well as
displaymessages (Ypage 240).
EBD monitors and controls the brake
pressure on the rear wheels to improve
driving stability while braking.
Driving safety systems71
Safety
Z

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.
72Driving safety systems
Safety

ContactanauthorizedMercedes-Benz
Centerorcall 1-800-FOR-MERCedes (in the
USA) or 1-800-387-0100 (in Canada).
ATA (anti-theftalarm system)
XTo arm:lockthe vehicle with the SmartKey
or KEYLESS-GO.
Indicator lampflashes. The alarm
system is armed after approximately
15 seconds.
XTo disarm:unlock the vehicle with the
SmartKey or KEYLESS-GO.
Avisual and audible alarm is triggeredifthe
alarm system is armed and you open:
Radoor
Rthe vehicle with the mechanical key
Rthe trunk lid
Rthe hood
XTo turn thealarmoff with the
SmartKey:press theorbutton
on the SmartKey.
The alarm is switched off.
or
XInsert the SmartKey intothe ignition lock.
The alarm is switched off.
XTo stop thealarmusing KEYLESS-GO:
grasp the outside door handle. The
SmartKey must be outside the vehicle.
The alarm is switched off.
or
XPress the Start/Stop button on the
dashboard. The SmartKey must be inside
the vehicle.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
iIf the alarm stays on for more than
30 seconds, the mbrace emergency call
system automatically sendsamessage to
the Customer Assistance Center by text
message or data connection.The
emergency call system sends the message
provided that:
Ryou have subscribed to the mbrace
service
Rthe mbrace service has been activated
properly
Rthe necessary mobile phone network is
available
74Theft deterrent locking system
Safety

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.
78SmartKey
Opening and closing