Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
a child restraint system on a rear seat. Children are generally better protected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child
Rbe sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions
Rbe sure to observe the instructions and safetynotes on the "Occupant classification system
(OCS)" (
Ypage 50)
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set 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 vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk 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,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting
properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
(
Ypage 44 )and the notes on correct use of seat
belts (Ypage 45).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lb s(18 kg) until they reach a height where a
three-point seat belt can be properly fastened
without a booster seat.
Special seat belt retractor
GWARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac- tor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with a special seat belt
retractor. When activated, the special seat belt
retractor ensures that the seat belt cannot
slacken once the child seat is secured.
58Children in the vehicle
Safety
Forward-facing child restraint system
Always moveth efront-passenger's seat as far
bac kas possible if th echild must be secured on
th efront-passenger seat in aforward-facing
child restrain tsystem. Full yretrac tth eseat
cushion length. The base of th echild restrain t
system must always res ton th eseat cushion of
th efront-passenger's seat .As muc has possible
of th ebackrest of th echild restrain tsystem
must be resting on th ebackrest of th efront-
passenger's seat .The child restrain tsystem
may no ttouch th eroo for be subjected to aload
by th ehead restraint. Adjus tth eangle of th e
seat backrest and th ehead restraint position
accordingly. Always mak esure th eshoulder belt
is correctly secured ,runnin gfrom th ebelt outlet
to th ebelt guide of th echild restrain tsystem.
The shoulder belt strap must be routed forward
and down from th evehicl ebelt outlet .Adjus tth e
belt outlet and front-passenger seat as required.
Always comply wit hth emanufacturer' sinstal -
lation and operating instruction sfor th echild
restrain tsystem.
Child-proof locks
Important safety notes
GWARNIN G
If children are traveling in th evehicle, they
could:
Ropen doors, thus endangering other people
or road user s
Rexit thevehicl eand be caught by oncomin g
traffic
Roperate vehicl eequipmen tand become
trapped
Ther eis aris kof an acciden tand injury.
Always activat eth echild-proof locks and
override feature if children are traveling in th e
vehicle. When leaving th evehicle, always tak e
th eke ywit hyou and loc kth evehicle. Never
leav echildren unattended in th evehicle.
Override feature for :
Rtherear door s (Ypage 63)
Rtherear side windows (Ypage 63)
GWARNING
If you leav echildren unsupervised in th evehi-
cle ,they could set it in motion by, for example :
Rrelease theparking brake.
Rshif tth eautomatic transmission out of th e
parking position P.
Rstart theengine.
In addition ,they may operate vehicl eequip-
men tand become trapped .Ther eis aris kof
an acciden tand injury.
When leaving th evehicle, always tak eth e
SmartKey wit hyou and loc kth evehicle. Never
leav echildren unsupervised in th evehicle.
GWARNIN G
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is aris kof injury, possibly eve n
fatal. Never leav echildren unattended in th e
vehicle.
GWARNIN G
If th echild restraint system is subjected to
direct sunlight, part smay get ver yhot .Chil-
dre nmay burn themselve son these parts,
particularly on th emetal part sof th echild
restraint system. Ther eis aris kof injury.
If you leav eth evehicle, taking th echild wit h
you, always ensure that th echild restraint
system is no texposed to direct sunlight. Pro -
tect it wit h ablanket, for example. If th echild
restraint system has been expose dto direct
sunlight, let it cool down before securin gth e
child in it .Never leav echildren unattended in
th evehicle.
62Children in the vehicle
Safety
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause Brake Assist to intervene.
If adaptive Brake Assist is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full brake
boosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-
tion (Ypage 64).
ESP
®monitors driving stability and traction, i.e.
power transmission between the tires and the
road surface.
If ESP
®detects that the vehicle is deviating from
the direction desired by the driver, one or more
wheels are braked to stabilize the vehicle. The
engine output is also modified to keep the vehi-
cle 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.
4ETS (Electronic Traction System)
iObserve the "Important safety notes" sec-
tion (Ypage 64).
ETS traction control is part of ESP
®. On vehicles
with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-
vidually if they 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 transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP
®.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 64).
GWARNING
If ESP
®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP®checked at a
qualified specialist workshop.
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 available due to a malfunc-
tion.
Observe the information on warning lamps
(
Ypage 254) and display messages which may
be shown in the instrument cluster
(
Ypage 223).
Only use wheels with the recommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the ÷ ESP®warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP
®intervenes, the ÷ESP®warning lamp
flashes in the instrument cluster.
If ESP
®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depress the accelerator pedal as far as
necessary when pulling away.
XAdapt your driving 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 pull away again. ESP
®
remains in its previously selected status, e.g. if
ESP®was deactivated before the engine was
automatically switched off.
Deactivating/activating ESP®(except
Mercedes‑AMG vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 64).
Driving safet ysystem s69
Safety
Z
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 a risk 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 objects to the
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 objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
!Keep the SmartKey away from strong mag-
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. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart- Key. Vehicles with KEYLESS-GO start function:
do
not keep the SmartKey in the cargo compart-
ment. Otherwise, the SmartKey may not be
detected, e.g. when starting the engine using
the Start/Stop button.
A brief radio connection between the vehicle
and the SmartKey determines whether a valid
SmartKey is in, or in the direct vicinity of, the
vehicle. This occurs, for example:
Rwhen starting the engine
Rwhile driving
Rwhen using HANDS-FREE ACCESS
Rwhen the external door handles are touched
Rduring convenience closing
SmartKey functions
:& Locks the vehicle
;FOpens/closes the tailgate
=%Unlocks the vehicle
XTo unlock centrally: press%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Rprotection against theft is reactivated.
XTo lock centrally: press the&button.
The SmartKey centrally locks and unlocks the
following components:
Rthe doors
Rthe tailgate
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 via the
76SmartKey
Opening and closing
piratory organs or clothing or be swallowed.
There is a risk of injury.
If you come into contact with the electrolyte,
observe the following:
RRinse off the electrolyte from your skin
immediately with water.
RImmediately rinse the electrolyte out of
your eyes thoroughly with clean water.
RIf the electrolyte is swallowed, immediately
rinse your mouth out thoroughly. Do not
induce vomiting.
RIf electrolyte comes into contact with your
skin or hair or is swallowed, seek medical
attention immediately.
RImmediately change out of clothing which
has come into contact with electrolyte.
RIf an allergic reaction occurs, seek medical
attention immediately.
The exterior mirror on the driver's side and the
rear-view mirror automatically go into anti-glare
mode if:
Rthe ignition is switched on
Rincident light from headlamps strikes the sen-
sor 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 mir-
ror on the front-passenger side
Storing the parking position
You can set the front-passenger side exterior
mirror such that you can see the rear wheel on
that side as soon as you engage reverse gear.
You can store this position.
Storing using reverse gear
:Memory button M
;Button for the exterior mirror setting
=Button for the front-passenger side exterior
mirror
?Button for the driver's side exterior mirror
XStart the engine.
XPress button=.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse button;to adjust the exterior mirror to
a position that allows you to see the rear
wheel and the curb.
The parking position is stored.
iIf you shift the transmission to another posi-
tion, the exterior mirror on the front-
passenger side returns to the driving position.
Saving using the memory button
You can store the parking position of the exte-
rior mirror on the front-passenger side using
memory button M:. The reverse gear must not
be engaged.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 127).
XPress button =.
XUse button;to adjust the exterior mirror to
a position that allows you to see the rear
wheel and the curb.
XPress memory button M: and one of the
arrows on button ;within three seconds.
The parking position is stored if the exterior
mirror does not move.
XIf the mirror moves out of position, repeat the
steps.
XAfter successfully storing, reset the driving
position of the exterior mirror.
Mirrors105
Seats, steering wheel and mirrors
Z
!Do not warm up the engine with the vehicle
stationary. Drive off immediately. Avoid high
engine speeds and driving at full throttle until
the engine has reached its operating temper- ature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta-
tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
SmartKey positions
SmartKey
gTo remove the SmartKey
1Power supply for some consumers, such as
the windshield wipers
2Ignition (power supply for all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
Start/Stop button
General notes
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the
case if you are not depressing the brake pedal. If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
the vehicle. This occurs, for example, when
starting the engine.
To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in the
ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO. (Ypage 77)
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart-
Key.
If you lock the vehicle with the SmartKey remote
control or with KEYLESS-GO, after a short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the button
on the front door (
Ypage 82), you can continue
to start the engine with the Start/Stop button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Driving127
Driving and parking
Z
Key positions withthe Start/S topbutton
:Start/Sto pbutto n
;Ignition loc k
As soo nas th eignition is switched on ,all th e
indicator lamps in th einstrumen tcluste rligh t
up. Warning and indicator lamps :see
(
Ypage 251).
If Start/Sto pbutto n: has no tyet been
pressed, this correspond sto th eSmartKey
bein gremove dfrom th eignition .
XTo switch on th epower supply :press
Start/Sto pbutto n: once.
The power suppl yis switched on .You can no w
activat eth ewindshield wipers, for example .
The power suppl yis switched off again if:
Rth edriver' sdoor is opened and
Ryou press Start/Sto pbutto n: twice when in
this position
XTo switch on th eignition: press Start/Sto p
butto n: twice.
The ignition is switched on .
The ignition is switched off again if:
Ryou do no tstart th eengin efrom this position
within 15 minute s
Ryou press Start/Sto pbutto n: once when in
this position
The power suppl yis switched off again if:
Rth edriver' sdoor is opened and
Ryou press Start/Sto pbutto n: once when in
this position
Removing the Start/S topbutton
You can remove th eStart/Sto pbutto nfrom th e
ignition loc kand start th evehicl eas normal
usin gth eSmartKey.
It is possible to switch between St art/Sto
pb
ut -
to nmod eand ke yoperation only when th e
transmission is in position j.
XRemove Start/Stopbutto n: from ignition
loc k;.
You do no thave to remove th eStart/Sto pbut -
to nfrom th eignition loc kwhen you leav eth e
vehicle. You should, however ,always tak eth e
SmartKey wit hyou when leaving th evehicle. As
lon gas th eSmartKey is in th evehicle:
Rth evehicl ecan be started usin gth eStart /
Stop butto n
Rtheelectrically powered equipmen tcan be
operate d
Starting the engine
Important safety notes
GWARNIN G
If children are lef tunsupervised in th evehicle,
they could:
Ropen th edoors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate th evehicle's equipment.
Additionally, children could set th evehicl ein
motion if, for example ,they:
Rrelease th eparking brake.
Rshiftin gth eautomatic transmission out of
park positio nP
RStart th eengine.
Ther eis aris kof an acciden tand injury.
When leaving th evehicle, always tak eth e
SmartKey wit hyou and loc kth evehicle. Never
leav echildren or animals unattended in th e
vehicle. Always keep th eSmartKey out of
reac hof children .
GWARNING
Combustion engines emit poisonous exhaust
gase ssuc has carbon monoxide. Inhalin g
these exhaust gase sleads to poisoning .Ther e
is aris kof fatal injury. Therefore never leav e
th eengin erunnin gin enclosed spaces with-
out sufficien tventilation .
128Driving
Driving and parking
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes
Vehicles with a gasoline engine: the catalytic
converter is preheated for up to 30 seconds
after a cold start. The sound of the engine may
change during this time.
Automatic transmission
XShift the transmission to position j
(Ypage 136).
The transmission position indicator on the
multifunction display shows j
(
Ypage 137).
iYou can start the engine in transmission
position jand i.
Starting procedure with the SmartKey
To start the engine using the SmartKey instead
of the Start/Stop button, pull the Start/Stop
button out of the ignition lock.
XTo start a diesel engine: turn the SmartKey
to position 2in the ignition lock
(
Ypage 127).
The % preglow indicator lamp in the instru-
ment cluster lights up.
XTurn the SmartKey to position 3in the igni-
tion lock (Ypage 127) and release it as soon
as the engine is running.
iVehicles with a diesel engine: you can
start the engine without preglow if the engine
is warm.
If the engine will not start:
XRemove the SmartKey from the ignition lock.
XReinsert the SmartKey into the ignition lock
after a short waiting period.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 127).
The indicator lamps in the instrument cluster
light up (
Ypage 251).
XTurn the SmartKey to position 3in the igni-
tion lock (Ypage 127) and release it as soon
as the engine is running.
Starting procedure with the Start/Stop
button
The Start/Stop button is only available on vehi-
cles with KEYLESS-GO or the KEYLESS-GO start
function.
The Start/Stop button can be used to start the
vehicle manually without inserting the SmartKey
into the ignition lock. The Start/Stop button
must be inserted in the ignition lock and the
SmartKey must be in the vehicle. This mode for starting the engine operates independently of
the ECO start/stop automatic engine start func-
tion.
You can start the engine if a valid SmartKey is in
the vehicle. Switch off the engine and always
take the SmartKey with you when leaving the
vehicle, even if you only leave it for a short time.Pay attention to the important safety notes.
XDepress the brake pedal and keep it
depressed.
XPress the Start/Stop button once
(Ypage 128).
Vehicles with a gasoline engine: the engine
starts.
Vehicles with a diesel engine: preglow is
activated and the engine starts.
Starting procedure via smartphone
Observe the important safety notes on starting
the engine (Ypage 128).
You can also start your engine via your smart-
phone from outside the vehicle. In this case, the
previously selected climate control setting is
activated. In this way you can cool or heat the
interior of the vehicle before starting the jour-
ney.
Only start the engine via your smartphone if it is
safe to start and run the engine where your vehi-
cle is parked.
Observe the legal stipulations in the area where your vehicle is parked. Engine start via smart-
phone may be limited to certain countries or
regions.
Driving129
Driving and parking
Z