X
Move head restraint :upwards.
X Fold up cover ;of Top Tether anchorage =.
X Fit the ISOFIX child restraint system with Top
Tether. Always comply with the child restraint system manufacturer's installation instruc-
tions when doing so. X
Route Top Tether belt Aunder head
restraint :between the two head restraint
bars.
X Hook Top Tether hook ?of Top Tether belt
A into Top Tether anchorage =.
Make sure that Top Tether belt Ais not twis-
ted.
X Tension Top Tether belt A.Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
X Fold down cover ;of Top Tether anchorage
=.
X If necessary, move head restraint :back
down again slightly. Make sure that you do
not interferew ith the correct routing of Top
Tether belt A. Child restraint system on the front-
passenger seat
General notes Accident statisticss
how that children secured
in the rear seats are safer than children secured
in the front seats. For this reason, Mercedes-
Benz strongly advises that you fit achild
restraint system on arear seat.
Vehicles with the automatic co-driver's front air-
bag deactivation system: if it is absolutely nec-
essary to fit achild restraint system to the co-
driver's seat, always observe the notes on the
"Automatic co-driver's front airbag deactivation system" (Y page 47). You can thus avoid the risks that could arise as
ar esult of:
R ac hild restraint system that is not detected
by the automatic co-driver's front airbag
deactivation system
R the unintentional disabling of the co-driver's
front airbag
R the unsuitable positioning of the child
restraint system, e.g. too close to the dash-
board. Please observe the warning notice on the co-
driver's sun visor, see the illustration. G
WARNING
If you secure achild on the co-driver's seat in
ar earward-facing child restraint system and
the PASSENGER AIR BAG ON indicator lamp
lights up, the co-driver's airbag could be
deployed in the event of an accident. The child could be struck by the airbag. There is an
increased risk of injury, possibly even fatal.
In this case, always ensure that the co-driver's
airbag is disabled. The PASSENGER AIRBAG
OFF indicator lamp must light up.
NEVERu searearward-facing child restraint on a
seat protected by an ACTIVE AIRBAG in front of
it, DEATH or SERIOUS INJURY to the CHILD can occur.
If the PASSENGER AIRBAG ON indicator lamp is
lit, the co-driver's front airbag is enabled
(Y page 40). Children in the vehicle
59Safety Z
Pets in the vehicle
G
WARNING
If you leave animals unsupervised or unse-
cured in the vehicle, they may push abutton
or as witch, for example.
They could:
R activate vehicle equipment and become
trapped, for example
R switch vehicle systems on or off, thus
endangering other road users
In the event of an accident, sudden braking or
abrupt changes of direction, unsecured ani-
mals could be flung around the vehicle, injur-
ing the vehicle occupants. There is arisk of an
accident and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals correctly during a
journey, e.g. in an animal transport box. Driving safety systems
Driving safety systems overview
In this section,y ou will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y page 66)
R BAS ( Brake Assist System) (Y page 67)
R BAS PLUS with Cross-Traffic Assist ( Brake
Assist System PLUS with Cross-Traffic Assist)
(Y page 67)
R COLLISION PREVENTION ASSIST PLUS
(Y page 69)
R Adaptive brake lights (Y page 71)
R ESP ®
(Electronic StabilityProgram)
(Y page 71)
R EBD ( electronic brakeforce distribution)
(Y page 75)
R ADAPTIVE BRAKE (Y page 75)
R PRE-SAFE ®
Brake (Y page 75)
R STEERC ONTROL (Y page 77) Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front,f or vehicle speed, for braking in
good time, and for staying in lane. Always adapt your driving style to suit the prevailing road and
weather condition sand maintain asafe 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 tyres and the road
surface. Pay particular attention to the informa- tion regarding tyres, recommended minimum
tyre tread depths etc. in the "Wheels and tyres" section (Y page 353).
In wintry driving conditions, always use winter
tyres (M+S tyres) and, if necessary, snow
chains. Only in this way will the driving safety
systems described in this section work as effec-
tively as possible. ABS (Anti-loc
kBraking System)
General notes ABS regulates brake pressure in such
away that
the wheels do not lock when you brake. This
allowsy ou 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 8km/h,
regardless of road-surface conditions. ABS
works on slippery surfaces, even when you only brake gently.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 66). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristic smay be severely impaired. Addition-
ally,f urther driving safety systems are deac- 66
Driving safety systemsSafety
tivated
.There is an increase ddangerofs kid-
ding and accidents.
Drive on carefully. Hav eABS checked imme-
diately at aquali fied specialis tworkshop.
If ABS is malfunctioning ,othe rsystems, includ-
ing drivin gsafety systems, will also become
inoperative .Obser ve the information on the ABS
warning lamp (Y page 287)and displa ymes-
sage swhich ma ybeshown in the instrument
cluste r(Ypage 254).
Brakes X
If ABS intervenes: continue to depress the
brake peda lwithf orce unti lthe braking sit-
uatio niso ver.
X To make afullb rak eapplication: depress
the brake peda lwithf ullf orce.
If ABS intervenes when braking ,you will fee la
pulsing in the brake pedal.
The pulsating brake peda lcan be an indication
of hazardous roa dconditions ;thiss erve sasa
reminder to take extra car ewhile driving. BAS (Brak
eAssis t)
General notes BAS operates in emergency braking situations.
If yo udepress the brake peda lquickly, BAS
automaticall yboosts the braking force, thus
shortening the stopping distance.
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 66). G
WARNING
If BAS is malfunctioning ,the braking distance
in an emergency braking situatio nis
increased. There is ariskofa ccident.
In an emergency braking situation, depress
the brake peda lwithf ullf orce. ABS prevents
the wheels fro mlocking. Braking X
Kee pthe brake peda ldep resse dfirml yuntil
the emergency braking situatio niso ver.
ABS prevents the wheels fro mlocking.
Th eb rakes will functio nasusual once you
release the brake pedal. BAS is deactivated. BAS PLUS (Brake Assist System
PLUS
)withC ross-Traffic Assist
General notes BAS PLU
Scan help yo utominimise th eriskofa
collision with avehicl eorap edestrian and
reduce the effects of such acollision. If BAS
PLU Sdetects adangerofc ollision, yo uare
assiste dwhenb raking.
i Pa
ya ttentio ntothe important safety notes
in the "Driving safety systems" section
(Y page 66).
BAS PLU Siso nlya vailable on vehicles with the
Drivin gAssistance package.
For BAS PLU Stoassistyou when driving, the
rada rsensors ystema nd the camera system
must be operational.
With the help of asensors ystema ndacamera
system, BAS PLU Scan detect obstacles:
R tha tare in the path of your vehicl efor an
extende dperiodoft ime
R tha tcros sthe path of your vehicle
In addition, pedestrians in the path of your vehi-
cle can be detected.
BAS PLU Sdetects pedestrians using typical
characteristics such as the body contour sand
posture of aperso ns tanding upright.
If the rada rsen sorsystemort he camera system
is malfunctioning ,BAS PLU Sfunctions are
restricted or no longe ravailable. The brake sys-
tem is still availabl ewithc omplete brake boost-
ing effect and BAS.
i Observe the restrictions describe
dinthe
"Important safety notes" section
(Y page 68). Driving safet
ysystems
67Safety Z
Important safety notes
G
WARNING
BA SP LUSc anno talways clearly identify
objects and comple xtraffic situations.
In suc hcases, BA SPLUSm ay:
R interven eunnecessarily
R no tintervene
Ther eisar iskofana ccident.
Always pay careful attention to th etraffic sit-
uation and be read ytob rake. Terminate the
intervention in anon-criti cal driving situation. G
WARNING
BA SP LUSc anno talways clearly identify peo-
ple, this is especially th ecaseift heya re mov-
ing .BAS PLU Scanno tinterven einthese
cases. Ther eisariskofana ccident.
Always pay careful attention to th etraffic sit-
uation and be read ytob rake. G
WARNING
BA SP LUSd oes no treact:
R to small people, e.g. children
R to animals
R to oncomin gvehicles
R when cornering
As aresult ,BAS PLU Smay no tinterven einall
critical situations. Ther eisariskofana cci-
dent.
Always pay careful attention to th etraffic sit-
uation and be read ytob rake.
In th eevent of snowfall or heav yrain ,detection
can be impaired.
Detection by th eradar sensor system is also
impaired in th eevent of:
R dirt on th esensor soro bscured sensors
R interferenc ebyother radar sources
R stron gradar reflections, for example, in multi-
store ycar parks
R an arrow vehicl etravellin ginfront,e.g.a
motorcycle R
av ehicl etravellin ginfrontonadifferen tline
R vehicles quickly moving int othe radar sensor
system detection range
Detection by th ecamera system is also impaired
in th eevent of:
R dirt on th ecamera or if th ecamera is covered
R glar eont hecamera system, e.g. from th esun
bein glow in th esky
R darkness
R if:
- pedestrian smoveq uickly, e.g. int othe path
of th evehicle
- thec amera system no longer detects a
pedestrian as aperson due to special cloth-
ing or other objects
- ap edestrian is concealed by other objects
- thet ypical outlin eofaperson is no tdistin-
guishable from th ebackground
Followin gdamag etothefron tend of th evehicle,
have th eradar sensor setting sand operation
checke dataq ualified specialist workshop. This
also applie stocollision sats low speeds where
there is no visible damag etothefron toft he
vehicle.
Followin gdamag etothewindscreen, hav ethe
configuration and operation of th ecamera sys-
te mc hecked ataq ualified specialist workshop.
Function To avoi
dacollision ,BAS PLU Scalculates the
brak eforce necessar yif:
R you approac hanobstacle and
R BA SP LUSh as detecte dariskofac ollision
When drivin gatas peed under 30 km/h:if
you depress th ebrak epedal ,BAS PLU Sisa cti-
vated. Braking assistanc efromB ASPLU Sisc ar-
rie do ut at th elast possible moment.
When drivin gatas peed abov e30km/h:if
you depress th ebrak epedal sharply, BA SPLUS
automatically increases th ebrak epressur etoa
degree suited to th etraffic situation.
BA SP LUSp rovide sbraking assistanc einhaz-
ardous situation swithv ehicles in fron twithin a
spee drange between 7km/ hand 25 0km/ h. 68
Driving safety systemsSafety
At speed
sofuptoa pproximatel y70km/h,BAS
PLU Scan react to:
R stationar yobjects in the path of your vehicle,
e.g .stoppe dorp arked vehicles
R pedestrians in the path of your vehicle
R obstacle scrossing your path, which move in
the detection range of the sensors and are
detected
i If BAS PLU
Sdeman ds particularly high brak-
ing force, preventative passenge rprotection
measures (PRE-SAFE ®
)a re activated simulta-
neously (Y page 54).
X Kee pthe brake peda ldep resse duntilthe
emergency braking situatio niso ver.
ABS prevents the wheels from locking.
BAS PLU Sisdeactivated and the brakes func-
tio na susual againif:
R your elease the brake pedal
R ther eisnol ongerar iskofc ollision
R no obstacle is detecte dinfront of your vehicle
R youd epress the accelerator pedal
R youa ctivate kickdown COLLISIO
NPREVENTION ASSIST
PLUS
General notes i
Observ
ethe "Important safety notes "sec-
tio n(Ypage 66).
COLLISION PREVENTION ASSIST PLU Sconsists
of ad istance warning functio nwithana utono-
mou sbraking functio nand Adaptive Brake
Assist.
COLLISION PREVENTION ASSIST PLU Scan help
yo utom inimisethe ris kofa collision with the
vehicl einfront or reduce the effects of such a
collision.
If COLLISION PREVENTION ASSIST PLUS
detects tha tther eisar iskofa collision, yo uwill
be warned visuall yand acoustically. If yo udonot
react to the visua land audibl ecollision warning,
autonomou sbraking can be initiated in critical
situations. If yo uapply the brake yoursel fina
critical situation, the COLLISION PREVENTION
ASSIST PLU SAdaptive Brake Assist assists you. Important safety notes In particular, the detection of obstacle
scan be
impaired in the cas eof:
R dirt on the sensors or obscured sensors
R snow or heavy rain
R interference by othe rradar sources
R strong rada rreflections, for example, in multi-
storey car parks
R an arrow vehicl etravelling in front, e.g .a
motorcycle
R av ehicl etravelling in front on adifferent line
R new vehicles or afte raservice on the COLLI-
SION PREVENTION ASSIST PLU Ssystem
Observ ethe important safety notes in the
"Running-i nnotes "sectio n(Ypage 144).
Following damage to the front end of the vehicle,
have the configuratio nand operatio nofthe
rada rsensor checked at aquali fied specialist
workshop .Thisa lsoa pplies to collisions at slow
speed swhere ther eisnov isible damage to the
front of the vehicle.
Activating/deactivating The COLLISION PREVENTION ASSIST PLU
Sis
automaticall yactive afte rswitching on the igni-
tion.
Yo uc an activate or deactivate COLLISION PRE-
VENTION ASSIST PLU Sinthe on-board com-
puter (Y page 245). Whe ndeactivated ,the dis-
tance warning functio nand the autonomous
braking functio narealso deactivated.
If COLLISION PREVENTION ASSIST PLU Sis
deactivated ,the æ symbo lappears in the
assistance graphics display.
Distance warning function General notes
The distance warning functio ncan hel pyou to
minimis ethe ris kofa collision with the vehicl ein
front or reduce the effects of such acollision. If
the distance warning functio ndetects tha tthere
is ar iskofa collision, yo uwillbew arned visually
and acoustically.
Important safety notes
i Observ
ethe "Important safety notes "sec-
tio nfor driving safety system s(Ypage 66). Driving safety systems
69Safety Z
G
WARNING
The distance warning function does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
Thus ,the distance warning function cannot
provid eawarning in all critical situations.
There is arisk of an accident.
Always pay carefu lattention to the traffic sit-
uation and be read ytobrake. G
WARNING
The distance warning function cannot always
clearly identify objects and comple xtraffic
situations.
In such cases, the distance warning function
may:
R give an unnecessary warning
R not give awarning
There is arisk of an accident.
Always pay carefu lattention to the traffic sit-
uation; do not rely on the distance warning
function alone.
Function The distance warning function issues awarning
at speeds:
R of approximately 30 km/h or more, if, over
severa lseconds, the distance maintained to
the vehicl etravelling in front is insufficient.
The · distance warning lamp then lights
up in the instrument cluster.
R of approximately 7km/h or more, if you rap-
idlya pproach avehicl einf ront. An intermit-
tent warning tone willt hen sound,and the
· distance warning lamp willl ight up in the
instrument cluster.
X Brake immediatel yinorder to increas ethe
distance from the vehicl einfront.
or
X Take evasive action provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may alsoc ausethe system to display awarning. With the help of the rada
rsensor system, the
distance warning function can detect obstacles
that are in the path of yourv ehiclefor an exten-
ded period of time.
Up to aspee dofa pproximatel y70k m/h, the
distance warning function can alsor eact to sta-
tionary obstacles, such as stoppe dorparked
vehicles.
Autonomous braking function If the drive
rdoes not react to the distance warn-
ing signa linacritical situation, COLLISION PRE-
VENTION ASSIST PLUS can assist with the
autonomous braking function.
The autonomous braking function:
R gives the drive rmore time to react to critical
driving situations
R can help the drive rtoavoidana ccident or
R reduces the effects of an accident
Vehicles without DISTRONIC PLUS: the
autonomous braking function is available in the
following spee dranges:
R 7-1 05 km/h for moving objects
R 7-50k m/h for stationary objects
Vehicles with DISTRONIC PLUS: the autono-
mous braking function is available in the follow-
ing spee dranges:
R 7-2 00 km/h for moving objects
R 7-50k m/h for stationary objects
Due to the nature of the system, complicated
but non-critical driving situations may also
caus ethe autonomous braking function to inter-
vene.
If the autonomous braking function demands
particularl yhigh braking force, preventative
passenger protection measures (PRE-SAFE ®
)
are activated simultaneously (Y page54).
Adaptive Brake Assist General notes
i Observe the "Important safety notes" sec-
tion (Y page66).
With the help of Adaptive Brake Assist, the dis-
tance warning signa lcan detect obstacles that
are in the path of yourv ehiclefor an extended
period of time.
If Adaptive Brake Assist detects arisk of acol-
lision with the vehicl einfront, it calculates the 70
Driving safety systemsSafety
brakin
gforc enecessary to avoid acollision. If
you apply the brakes forcefully, Adaptiv eBrake
Assist will automatically increase the braking
forc etoal evel suitable for the traffic conditions.
Adaptiv eBrakeA ssist provides brakin gassis-
tanc einh azardous situation satspeeds above
7k m/h. It uses radar sensor technology to
assess the traffic situation.
Up to aspeed of approximately 250 km/h,
Adaptiv eBrakeA ssist is capable of reacting to
movin gobjects that have already been detected
as such at least onc eover the period of obser-
vation.
Up to aspeed of approximately 70 km/h, Adap-
tive Brak eAssist react stostationary obstacles.
If Adaptiv eBrakeA ssist demands particularly
high brakin gforce, preventativ epassenger pro-
tection measures (PRE-SAFE ®
)a re activated
simultaneously (Y page 54).
X Keep the brake pedal depressed until the
emergency brakin gsituation is over.
ABSp revents the wheels from locking.
The brakes will work normally again if: R you release the brake pedal
R ther eisnol onger any danger of acollision
R no obstacle is detected in fron tofyour vehicle
Adaptiv eBrakeA ssist is then deactivated.
Important safet ynotes
i Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 66).G
WARNING
Adaptiv eBrakeA ssist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptiv eBrakeA ssist can:
R interven eunnecessarily
R not intervene
There is arisk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in anon-critical driving situation. G
WARNING
Adaptiv eBrakeA ssist does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As aresult, the Adaptiv eBrak eAssist may not
interven einall critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
Due to the natur eofthe system, particularly
complicated but non-critical driving conditions
may also cause Brak eAssist to intervene.
If Adaptiv eBrak eAssist is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full brake
boostin geffec tand BAS. Adaptive brake lights
The adaptive brake lights warn following traffic
in an emergency brakin gsituation:
R by flashing brake lamps
R by activating the hazard warning lamps
If you brake sharply from aspeed of more than
50 km/ horifb raking is assisted by BAS or BAS
PLUS, the brake lamp sflashr apidly.Int his way,
traffic travelling behind you is warned in an even more noticeable manner.
If you brake sharply from aspee dofm ore than
70 km/h to astandstill, the hazard warning
lamp sare activated automatically. If the brakes
are applieda gain, the brake lamp slight up con-
tinuously.T he hazard warning lamp sswitch off
automatically if you travel faster than 10 km/h. You can alsos witch off the hazard warning
lamp susing the hazard warning button
(Y page1 20). ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page66). Driving safety systems
71Safety Z
ESP
®
monitors drivin gstability and traction, i.e.
powe rtransmission between the tyres and the
roa dsurface.
If ESP ®
detects tha tthe vehicl eisdeviating from
the direction desired by the driver ,one or more
wheels ar ebraked to stabilise the vehicle. The
engine outpu tisa lsom odified to kee pthe vehi-
cle on the desired course withi nphysical limits.
ESP ®
assists the driver when pulling away on
we tors lipper yroads .ESP ®
can also stabilise
the vehicl eduringb raking.
ETS/4ETS (Electroni cTraction System) i
Observe the "Important safety notes" sec-
tio n(Ypage 66).
ETS tractio ncontro lispartofE SP®
.
Tractio ncontro lbrakes the drive wheels indi-
viduall yiftheys pin. Thi senables yo utopull
away and accelerate on slippery surfaces ,for
exampl eifthe roa dsurface is slippery on one
side .Ina ddition, mor edrive torque is transfer-
red to the whee lorwheelswitht raction.
Tractio ncontro lremains active if yo udeactivate
ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 66). G
WARNING
If ESP ®
is malfunctioning ,ESP ®
is unabl eto
stabilise the vehicle. In addition, othe rdriving
safety system sareswitched off .Thisi ncrea-
ses the ris kofskidding and an accident.
Driv eonc arefully. Hav eESP®
checked at a
qualified specialis tworkshop.
When towing your vehicl eawayw itht he rear
axl eraised, observe the note sonESP®
(Y page 349).
If the å ESP®
OFF warning lamp lights up
continuously ,ESP ®
is deactivated.
If the ÷ ESP®
warning lamp lights up contin-
uously ,ESP ®
is not availabl eduetoam alfunc-
tion.
Observe the informatio nonwarning lamps
(Y page 287 )and displa ymessage swhich may
be shown in the instrument cluster
(Y page 254). Onl
yusewheels with the recommende dtyre
sizes. Onl ythenw illE SP ®
functio nproperly.
Characteristics of ESP ® General notes
If the ÷ ESP warning lamp goes ou tbefore
beginning the journey ,ESP ®
is automatically
active.
If ESP ®
intervenes ,the ÷ ESP®
warning lamp
flashe sinthe instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away ,onlyd epress the acceler-
ato rpedal as farasisn ecessary.
X Adapt your drivin gstyle to suit the prevailing
roa dand weather conditions.
EC Os tart/sto pfunction
The ECO start/sto pfunctio nswitches the
engine off automaticall yifthe vehicl estops
moving .Whenp ulling away again, the engine
starts automatically. ESP ®
remains in its previ-
ousl yselecte dstatus. Example: if ESP®
was
deactivated befor ethe engine wa sswitched off,
ESP ®
remains deactivated when the engine is
switched on again.
Deactivating/activatin gESP®
(except
Mercedes‑ AMGvehicles) Important safety notes
i Observe the "Important safety notes" sec-
tio n(Ypage 66).
Yo uc an select between the following statuses
of ESP ®
:
R ESP ®
is activated
R ESP ®
is deactivated G
WARNING
If yo udeactivate ESP ®
,E SP ®
no longe rsta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Onl ydeactivate ESP ®
in the situations descri-
be dint he following. 72
Driving safet
ysystemsSafety