Resetting triggeredNECK-PRO head
restraints
Do not insert your finger between the upholstery of the hea drestraint and the seat. Payp articular
attention whil eresetting the NECK-PROh ead
restraints.
XTilt the top of the NECK-PROh eadr estraint
cushio nforward sinthe direction of arrow :.
XPush the NECK-PROh eadr estraint cushion
dow nasfar as it will go in the direction of
arrow ;.
XFirmly push the NECK-PROh eadr estraint
cushio nbackint he direction of arrow =until
the cushio nengages.
XRepea tthis procedure for the second NECK-
PROh eadr estraint.
iResetting the NECK-PROh eadr estraints
requires alot of strength. If yo uhaved ifficulty
resetting the NECK-PROh eadr estraints, have
this work carrie doutataq uali fied specialist
workshop.
PRE-SAFE®(anticipatory occupant
protection system)
PRE-SAFE®informs yo uofcertain critical driving
situations and take spre-emptive measures to
protect the vehicl eoccupants.
PRE-SAFE
®can take the following measures
independentl yofeacho ther:
Rpre-tensioning the driver' sand front-
passenger seatbelt.
Rclosing the sid ewindows.
Rvehicles with amemory function: setting a
more favorabl eseatp osition for the front-
passenger seat.
!Make sure that there are no objects in the
footwell or behind the seats. There is adanger
that the seats and/or objects could be dam-
aged when PRE-SAFE
®is activated.
Should an accident not occur, the preventative
measures take nare reversed. Certai nsettings
mus tbem adey ourself.
XIf the sea tbeltp re-tensioning is not reduced,
move the sea tbackrest back slightly.
Seatb eltp re-tensioning is released.
Automatic measures after an acci-
dent
Immediately afte ranaccident, the following
measures are implemented, depending on the
typ eand severity of the impact:
Rthe hazard warning lamps are activated
Rthe emergency lighting is activated
Rthe vehicl edoors are unlocked
Rthe front sid ewindow sare lowered
Rvehicles with amemory function: the electri-
cally adjustabl esteering wheel is raised
Rthe engine is switched off and the fue lsuppl y
is cut off
Rvehicles with mbrace: automatic emergency
call
Childrenint he vehicle
Important safety notes
Ifac hild younger than twelve years olda nd
under 5ft(1.50 m) in height is traveling in the
vehicle:
Ralways secur ethe child in achild restraint
systems uitabl efor Mercedes-Benz vehicles.
The child restraint systemm ustbea ppropri-
ate to the age, weight and size of the child
Rbe sure to observe the instructions and safety
note sint hissectio nina dditiontot he child
restraint systemm anufacturer's installation
instructions
Rbe sure to observe the instructions and safety
note sont he "Occupant classification system
(OCS) "(
Ypage 44)
Children in the vehicle51
Safety
Z
GWARNING
If you leave children unsupervised in the vehi-
cle, they coul dset it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehiclee quip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alway stake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularl ychildren are subjected
to prolonged exposure to extreme heato r
cold, there is arisk of injury ,possibly even
fatal .Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularl yonthe metal parts of the child
restraint system. There is arisk of injury.
If you leave the vehicle, taking the child with
you ,alway sensure that the child restraint
system is not exposedtod irect sunlight. Pro-
tect it with ablanket, for example. If the child
restraint system has been exposedtod irect
sunlight, let it cool downb efore securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicleo ccupants have
their seat belts fastened correctly and are sitting
properly.P articular attention must be pai dto
children.
Observe the safety notes on the seat belt
(
Ypag e39) and the notes on correct use of seat
belts (Ypag e40).
Ab ooster seat may be necessary to achieve
propers eat beltp ositioning for children over
41 lbs (18 kg )until they reach aheight where a three-point seat beltc
an be properly fastened
without abooster seat.
Special seat bel tretractor
GWARNING
If the seat beltisr eleased while driving, the
child restraint system wil lnolonger be
secure dproperly.T he special seat beltr etrac-
tor is disable dand the inertia real draw sina
portion of the seat belt. The seat beltc annot
be immediatel yrefastened. There is an
increased risk of injury,p ossibly even fatal.
Stop the vehiclei mmediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat beltr etractor and secure the
child restraint system properly.
The seat beltont he front-passenge rside is
equipped with aspecial seat beltr etractor.
When activated, the special seat beltr etractor
ensure sthat the seat beltw illn ot slacken once
the child restraint system has been secured.
Installing achild restraint system:
XAlways comply with the child restraint system
manufacturer's installation instructions.
XPul lthe seat belts moothly out of the belt
loop.
XEngage the seat beltt ongue in the beltbuckle.
Activating the special seat beltr etractor:
XPullthe seat belto ut fullyand let the inertia
reel retract it again.
Whil ethe seat beltisr etracting, you should
hear aratcheting sound .The special seat belt
retractor is activated.
XPush the child seat restraint system downs o
that the seat beltist ight and does not loosen.
Removing achild restraint system and deacti-
vating the special seat beltr etractor:
XAlways comply with the child restraint system
manufacturer's installation instructions.
XPress the release button of the beltb uckle,
hold the beltt ongue firmly and guide it back
toward sbeltl oop.
The special seat beltr etractor is deactivated.
52Children in the vehicle
Safety
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and
weather conditions and maintainasafe distance
from the vehicle in front.D rive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (
Ypage 255).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such away that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from aspeed of about 5mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally,f urther driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at aqualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 204) and dis- play messages which may be shown in the
instrument cluster (
Ypage 179).
Braking
XIf ABS intervenes:
continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make afull brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a reminder to take extr acare while driving.
BAS (Brake Assist System)
General information
BAS operates in emergencyb raking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergencyb raking situation is
increased. There is arisk of an accident.
In an emergencyb raking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
XKeep the brake pedal firmly depressed until
the emergencyb raking situation is over.
ABS prevent sthe wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Driving safety systems55
Safety
Z
Function
Starting at aspeedofa pproximately 4mph
(7 km/h), th edistanc ewarning function warns
you ifyou rapid ly approachav ehicle in front. An
intermittentw arning tonewillthen sound, and
the · distancewarning lamp willlight up in
th ei nstrumen tcluster.
XBrake immediately inorder to increas ethe
dist ancefromt heveh icle in front.
or
XTakee vasive action,p rovide ditiss afe todo
so.
Due to th enature of th esystem, particularly
co mpli cated but non-critical driving conditions
may also caus ethe system to displayaw arning.
Witht hehelp of th eradar sensor system, the
dist ancewarning function can detect obstacles
that are inthep athofy our veh iclefor an exten-
ded period of time.
Up to aspeedofa pproximately 44 mph
(70 km/ h),t he distance warnin gfunction can
also react to stationary obstacles, such as stop-
ped or parked vehicles.
Autonomous braking function
If the driver does not react to the distance warn-
ing signal in acritical situation, Active Brake
Assis tcan assist with the autonomous braking
function.
If the autonomous brakin gfunction requires a
particularly high brakin gforce, preventative
passenger protection measures (PRE-SAFE
®)
are activated simultaneously.
Vehicles without Distance Pilot DISTRONIC:
the autonomous brakin gfunction is available in
the following speed ranges:
R4-65m ph (7-105 km/ h)for moving objects
R4-31m ph (7-50km/h)for stationary
objects
Vehicles with Distance Pilot DISTRONIC: the
autonomous braking function is available in the
following speedr anges:
R4-124 mph (7 -200 km/h )for moving
objects
R4-31m ph (7-50km/h)for stationary
objects
Due to the nature of the system ,particularly
complicated but non-critical driving conditions
may als ocaus ethe Autonomou sBraking Func-
tion to intervene. If the autonomous braking function requires a
particularly high braking force, preventative
passenger protection measures (PRE-SAFE
®)
are activated simultaneousl y(Ypage51).
Adaptive Brake Assist
General information
iObservet he "Important safety notes" sec-
tion (Ypag e54).
With the help of adaptive Brake Assist, the dis-
tance warning signa lcan detect obstacles that
are in the path of you rvehiclef or an extended
period of time.
If adaptive Brake Assist detects arisk of colli-
sion with the vehicl einfront, it calculate sthe
braking force necessary to avoi dacollision. If
you apply the brakes forcefully ,adaptive Brake
Assist wil lautomatically increas ethe braking
force to alevels uitabl efor the traffic conditions.
Adaptive Brake Assist provides braking assis-
tance in hazardouss ituations at speeds above
4m ph (7 km/h) .Itusesrada rsensor technology
to assess the traffic situation.
Up to aspeedofa pproximately 155 mph
(250 km/h) ,adaptive Brake Assist is capable of
reacting to moving objects that have already
been detected as such at least once over the
period of observation.
Up to aspeedofa pproximately 44 mph
(70 km/h), adaptive Brake Assist reacts to sta-
tionary obstacles.
If adaptive Brake Assist demands particularly
high braking force, preventative passenger pro-
tection measures (PRE-SAFE
®)a re activated
simultaneousl y(Ypage51).
XKeep the brake pedald epressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes wil lwork normally again if:
Ryou release the brake pedal.
Rthere is no longe rany dange rofacollision.
Rno obstacle is detected in front of you rvehi-
cle.
Adaptive Brake Assist is then deactivated.
Driving safety systems57
Safety
Z
Important safety notes
GWARNING
Adaptive Brake Assist canno talways clearly
iden tifyo bject sand co mplextraffic situa-
tions.
In suchc ases, Adaptive Brake Assist can:
Rinterveneu nnecessarily
Rnotintervene
Thereisar iskofana cciden t.
Always pay careful attentio ntothetraff icsit-
uation and beread ytob rake. Terminate the
interventio ninanon-criticaldriving situation.
GWAR NING
Adaptive Brake Assist does no treact:
Rto people or animals
Rto oncomin gvehicle s
Rto crossing traff ic
Rwhen cornering
As aresult, th eAdaptive Brake Assist may not
interveneina llcritical conditions. Thereisa
ris kofana cciden t.
Always pay careful attentio ntothetraff icsit-
uation and beread ytob rake.
Due to th enature of th esystem, particularly
co mpli cated but non-critical driving conditions
may also caus eBrake Assist to intervene.
If adaptive Brake Assist isno tavailab ledue to a
malfunctio nintheradar sensor system, the
brak esystem remains availab le withfull brake
boostin geffect and BA S.
ESP®(Electronic Stability Program)
General notes
iObserv ethe "Im portan tsafety notes" sec-
tio n(Ypage 54).
ESP
®monitors driving stabilit yand traction,i .e.
power transmission between th etires and the
road surface.
If ESP
®detect stha tthe veh icle is deviating from
th ed irection desired bythed river, oneorm ore
wheelsa re braked to stabiliz ethe veh icle.The
engineo utputisalso mod ifiedtok eept he veh i- cle on th
edesired course within physical limits.
ESP
®assists th edriver when pullingaway on
wet or slippery roads. ESP®can also stabilize
th ev ehicle durin gbraking.
ETS (Electronic Traction System)
iObserv ethe "Importan tsafety notes" sec-
tio n(Ypage 54).
ET St raction control is part of ESP
®.
ET Sb rakes th edrivew heelsi ndivid ually if they
spin.T his enables you to pull away and acceler-
ate on slippery surfaces, for example if th eroad
surface is slippery on ones ide.Inaddition,m ore
drivet orque istransferred to th ewheel or
wheelsw itht raction.
ET Sr emains active when you deactivate ESP
®.
Important safety notes
GWARNING
If ESP
®is malfunctioning, ESP®is unab leto
stabilizet hevehicle .Add itionally, further driv-
ing safety systems are deactivate d.This
increases th eriskofs kiddin gand an accident.
Drive on carefully. Hav eESP
®checked at a
qualified specialist workshop.
When to wingthe vehicle witht herear axle
raised, observ ethe note sonE SP
®
(Ypage 252).
If the å ESP®OFFw arning lamp lightsu p
continuously, then ESP®is deactivate d.
If the ÷ ESP®warning lamp and the å
ESP®OFFw arning lamp are lit continuously,
ESP®is no ta vailab ledue to amalfunction.
Observ ethe information on warning lamps
(
Ypage 205) and display messagesw hichmay
be shown in thei nstrumen tcluster
(
Ypage 179).
iOnly use wheelsw itht he recommended tire
sizes. Only then willESP®function properly.
Characteristics of ESP®
General information
Ifthe ÷ ESP®warning lamp goes out before
beginnin gthe journey, ESP®is automatically
active.
58Driving safety systems
Safety
If ESP®intervenes, the÷ESP®warning lamp
flashe sinthe instrument cluster.
If ESP
®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depresst he accelerator pedalasf ar as
necessary when pulling away.
XAdapt you rdriving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops
moving. The engine starts automatically when
the driver wants to pul lawa ya gain. ESP
®
remains in its previously selected status, e.g. if
ESP®was deactivated before the engine was
automatically switched off.
Deactivating/activating ESP®(except
SLC 43 AMG)
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
You can select between the following states of
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®,E SP®no longer sta-
bilizes the vehicle.T here is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP
®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Spinning the wheel sresults in acutting action
which providesb etter grip.
iActivate ESP®as soon as the situations
describeda bove no longer apply. ESP®will
otherwise not be abl etostabilize the vehicle if the vehicle starts to skid or
awheel starts to
spin.
!Avoid spinning the driven wheel sfor an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
Deactivating/activating ESP®
XTo deactivate: press button:.
The å ESP®OFF warning lamp in the
instrument cluster lights up.
XTo activate: press button :.
The å ESP®OFF warning lamp in the
instrument cluster goes out.
Characteristic swhen ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in the
instrument cluster flashes. In such situations,
ESP
®wil lnot stabilize the vehicle.
If you deactivate ESP®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheel sare abl etospin.
RTraction control is still activated.
RActive Brake Assist is not available and is not
activated even if you brake firmly with assis-
tance from ESP
®
RPRE-SAFE®is no longer available, nor is it
activated if you brake firmly and ESP®inter-
venes.
RESP®still providess upport when you brake
firmly.
Driving safety systems59
Safety
Z
Deactivating/activating ESP (SLC 43®
AMG)
Important safet ynotes
iObserv ethe "Important safet ynotes "sec-
tion (Ypage 54).
You can selec tbetween th efollowin gstate sof
ES P
®:
RESP®is activated.
RSPORT handlin gmodeisa ctivated.
RESP®is deactivated.
GWARNING
Whe nSPORT handlin gmodeisa ctivated,
there is agreater ris kofskidding and acci-
dents .
Only activat eSPORT handlin gmodeint hesit-
uation sdescribed in th efollowing.
GWARNING
If you deactivat eESP
®,ESP®no longer sta-
bilizes th evehicle. There is an increase drisk
of skidding and an accident.
Only deactivat eESP
®in th esituation sdescri-
bed in th efollowing.
In th efollowin gsituations, it may be bette rto
activat eSPORT handlin gmodeord eactivat e
ES P
®:
Rwhen usin gsnowc hains
Rin dee psnow
Ron san dorgrave l
Ron specially designated roads when th evehi-
cle's own oversteering and understeering
characteristics are desire d
Spinning th ewheels result sinacutting action
whic hprovides bette rgrip.
Driving in SPORT handlin gmodeorw ithout
ES P
®require sanextremel yqualified and expe-
rienced driver .
iActivateESP®as soo nasthesituation s
described abov enolonger apply .ESP®will
otherwise no tbeable to stabilize th evehicle if
th ev ehicle start stoskidoraw heelstartst o
spin.
!Avoid spinnin gthe driven wheels fo ran
extended period wit hESP®deactivated. You
could otherwise damage th edrivetrain .
Deactivating/activating ESP®
XTo activate SPORT handling mode: briefly
press butto n: .
The M SPORT handlin gmodew arnin g
lamp in th einstrument cluster lights up. The
SPORT handling mod e
messageappears in
th em ultifunction display.
XTo deactivate SPORT handling mode:
briefly press butto n:.
The M SPORT handlin gmodew arnin g
lamp in th einstrument cluster goe sout.
XTo deactivate ESP®:press butto n: until
th eå ESP®OF Fw arnin glamp lights up in
th ei nstrument cluster.
The ÷ OFF
messag eappears in th emulti-
function display.
XTo activate ESP®: briefly press butto n:.
The å ESP®OF Fw arnin glamp in th e
instrumen tcluster goe sout.T he ÷ ESP®
ONmessag eappears in th emultifunction dis -
play.
Characteristics of activate dSPORT han-
dling mode
If SPORT handlin gmodeisa ctivated and on eor
more wheels start to spin, th e÷ ESP®warn -
in gl amp in th einstrument cluster flashes .ESP®
only stabilize sthe vehicle to alimited degree .
Whe nSPORT handlin gmodeisa ctivated:
RESP®only improves drivin gstability to alimi-
te dd egree .
RTraction contro lisstill activated.
60Driving safetys ystems
Safety
SmartKey
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is arisk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If you attach heavy or large object stothe
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a risk of an accident.
Do not attach any heavy or large object stothe
SmartKey. Remove any bulky key rings before
insertingt he SmartKey into the ignition lock.
!Keep the SmartKey away from stron gmag-
netic fields. Otherwise, the remote control
function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the SmartKey:
Rwith electronic devices, e.g. amobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. ametal case.
This can affect the functionality of the Smart- Key.
SmartKey functions
:& Locks the vehicle
;FUnlockst he trunk lid
=%Unlockst he vehicle
XTo unlock centrally: press the%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Ranti-theft protection is reactivated.
XTo lock centrally: press the&button.
The SmartKey centrally locks/unlocks:
Rthe doors
Rthe trunk lid
Rthe stowage compartmentint he center con-
sole
Rthe fuel filler flap
The turn signals flash once when 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 174).
When it is dark, the surround lighting also comes
on if it is activated in the on-board computer
(
Ypage 173).
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is aKEY-
LESS-GO key in the vehicle (
Ypage 117).
SmartKey63
Opening and closing
Z