
lamp is permanently lit (Ypage 42) is the front-
passenger front air bag deactivated.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system
If it is absolutely necessary to install a forward-
facing child restraint system on the front-
passenger seat, always move the front-
passenger seat as far back as possible. The
entire base of the child restraint system must
always rest on the seat cushion of the front-
passenger seat. The backrest of the child
restraint system must lie as flat as possible
against the backrest of the front-passenger
seat. The child restraint system must not touch
the roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Always make sure that the shoulder belt strap is
correctly routed from the vehicle belt outlet to
the shoulder belt guide on the child restraint
system. The shoulder belt strap must be routed
forwards and downwards from the vehicle belt
outlet. If necessary, adjust the vehicle belt out-
let and the front-passenger seat accordingly.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Child-proof locks
Important safety notes
GWARNING
If children are traveling in the vehicle, they
could:
Ropen doors, thus endangering other people
or road users
Rexit the vehicle and be caught by oncoming
traffic
Roperate vehicle equipment and become
trapped
There is a risk of an accident and injury.
Always activate the child-proof locks and
override feature if children are traveling in the vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
Override feature for:
Rthe rear doors (Ypage 62)
Rthe rear side windows (Ypage 62)
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.
Children in the vehicle61
Safety
Z

Child-proof locks for the rear doors
You secure each door individually with the child-
proof locks on the rear doors. A door secured
with a child-proof lock cannot be opened from
inside the vehicle. When the vehicle is unlocked,
the door can be opened from the outside.
XTo activate:press the child-proof lock lever
up in the direction of arrow :.
XMake sure that the child-proof locks are work-
ing properly.
XTo deactivate:press the child-proof lock
lever down in the direction of arrow ;.
Override feature for the rear side win-
dows
XTo activate/deactivate:press button:.
If indicator lamp ;is lit, operation of the rear
side windows is disabled. Operation is only
possible using the switches in the driver's
door. If indicator lamp ;is off, operation is
possible using the switches in the rear com-
partment.
Pets in the vehicle
GWARNING
If you leave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As a result, they could:
Ractivate vehicle equipment and become
trapped, for example
Ractivate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sud-
den steering or braking, thereby injuring vehi-
cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
RABS (Anti-lock Braking System)
(Ypage 63)
RBAS (B rakeAssist System) (Ypage 63)
RActive Brake Assist (Ypage 64)
RESP®(Electronic StabilityProgram)
(Ypage 67)
REBD (Electronic Brake force Distribution)
(Ypage 69)
RADAPTIVE BRAKE (Ypage 69)
RActive Brake Assist with cross-traffic function (Ypage 69)
RSTEER CONTROL (Ypage 72)
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 overridethe laws of physics. Driving safety systems are
62Driving safety systems
Safety

Doors
Important safet ynotes
GWARNING
If children are lef tunsupervised in th evehicle,
they could:
Rope nth edoors ,thus endangerin gother
people or road users.
Rget out and disrup ttraffic .
Roperat eth evehicle' sequipment.
Additionally, children could set th evehicle in
motion if, fo rexample, they:
Rrelease th eparking brake .
Rshiftingth eautomatic transmissio nout of
par kposition P
RStart theengine.
There is aris kof an acciden tand injury.
Whe nleavin gth evehicle, always take th e
SmartKey wit hyou and loc kth evehicle. Never
leav echildren or animals unattended in th e
vehicle. Always keep th eSmartKey out of
reach of children .
Unlockingan dopening doors from
th einside
You can ope n adoo rfrom insid eth evehicle
eve nif it has bee nlocked. You can only ope nth e
rea rdoors from insid eth evehicle if they are no t
secure dby th echild-proof locks (
Ypage 62).
If th evehicle has previously bee nlocke dfrom
th eoutside, opening adoo rfrom th einsid ewill
trigger th eanti-thef talar msystem. Switc hof f
th ealar m (
Ypage 72).
XFront door: pull doorhandle ;.
If th edoo ris locked, locking knob :pop sup.
The doo ris unlocke dand can be opened.
XRea rdoor: pull doo rhandle ;.
If th edoo ris locked, locking knob :pop sup
and th edoo runlocks .
XPull doo rhandle ;again .
The doo rcan be opened.
Centrally locking an dunlocking th e
vehicle from th einside
You can centrall yloc kor unloc kth evehicle from
th einside. The buttons are located on bot hfron t
doors .
XTo unlock :press butto n:.
XTo lock :press butto n;.
If th efront-passenger doo ris closed, th evehi-
cl e locks .
Meanwhile, th efue lfiller flap will no tbe locke d
or unlocked.
You canno tunloc kth evehicle centrall yfrom th e
insid eif th evehicle has bee nlocke dfrom th e
outside.
You can ope n afron tdoo rfrom insid eth evehi-
cl e eve nif it has bee nlocked.
If alocke ddoo ris opene dfrom th einside, th e
previous unloc kstatus of th evehicle will be
take ninto consideration if:
Rth evehicle was locke dusin gth elocking but -
to nfo rth ecentral locking ,or
Rif th evehicle was locke dautomatically
The vehicle will be full yunlocke dif it had previ-
ousl ybee nfull yunlocked. If only th edriver's
doo rhad bee npreviously unlocked, only th e
doo rwhic hhas bee nopene dfrom th einsid eis
unlocked.
80Doors
Opening and closing

GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(
Ypage 380).
You should preferably place luggage or loads in
the cargo compartment. Observe the loading
guidelines (
Ypage 288).
Do not leave the SmartKey in the cargo com-
partment. You could otherwise lock yourself
out.
Vehicles without the EASY-PACK tailgate:
the tailgate can be:
Ropened and closed manually from outside
Runlocked from inside with the emergency
release
For vehicles with the EASY-PACK tailgate:
you can:
Rclose the tailgate manually from outside
Ropen the tailgate automatically from outside
Ropen and close the tailgate automatically
from inside
Runlock the tailgate from inside with the emer- gency release
Rlimit the opening angle of the tailgate
Tailgate reversing feature
On vehicles with the tailgate remote closing fea-
ture, the tailgate is equipped with automatic
obstacle recognition with a reversing feature. If
a solid object blocks or restricts the tailgate
when automatically opening or closing, this pro-
cedure is stopped. If the tailgate is stopped dur-
ing the closing procedure, it will open again automatically. The automatic obstacle recogni-
tion with reversing feature is only an aid. It is not
a substitute for your attentiveness when open-
ing and closing the tailgate.
GWARNING
The reversing feature does not respond:
Rto soft, light and thin objects, e.g. fingers
Rover the last Óin (8 mm) of the closing
movement
The reversing feature cannot prevent some-
one from becoming trapped in these situa-
tions in particular. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rpress the Fbutton on the SmartKey, or
Rpull or press the remote operating switch
on the driver's door or
Rpress the closing or locking button on the
tailgate or
Rpull the handle on the tailgate
Opening and closing manually from
outside
Opening
XPress the %button on the SmartKey.
XPull handle :.
XRaise the tailgate.
Vehicles with the EASY-PACK tailgate: if you
pull handle :and then release it, the tailgate
opens automatically.
82Cargo compartment
Opening and closing

Halogen headlamps
:
Low-beam headlamp: H7 55 W
;High-beam headlamp: H7 55 W
=Turn signal: W 5 W BV
Removing and installing the cover in
the front wheel housing
You must remove the cover from the front wheel
housing before you can change the front bulbs.
XTo remove:switch off the lights.
XTurn the front wheel inwards.
XRemove securing pin ;using a suitable tool.
XSlide cover :up and remove it.
XTo install:insert cover :again and slide it
down until it engages.
XInsert securing pin ;.
Low-beam headlamps
XRemove the cover in the front wheel housing
(Ypage 113).
XTurn housing cover:counter-clockwise and
remove it.
XTurn bulb holder ;counter-clockwise and
pull out.
XPull the bulb out of bulb holder ;.
XInsert new bulb into bulb holder ;.
XInsert bulb holder;and turn it clockwise.
XPress on housing cover :and turn it to the
right.
XReplace the cover in the front wheel housing
(Ypage 113).
High-beam headlamps
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise and
remove it.
XPull lever =upwards (headlamps on the left
in the direction of travel) or push it down-
wards (headlamps on the right in the direction
of travel) and remove bulb holder ;.
Replacing bulbs (vehicles with halogen headlamps)113
Lights and windshield wipers
Z

Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and driving
safety systems adjusts automatically while a
certain distance is being driven after the vehiclehas been delivered or after repairs. Full system
effectiveness is not reached until the end of this
teach-in procedure.
New and replaced brake pads and discs only
reach their optimum braking effect after several hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its per-
formance in the future.
RYou should therefore drive at varying vehicle
and engine speeds for the first 1000 miles
(1500 km).
RAvoid heavy loads, e.g. driving at full throttle,during this period.
RChange gear in good time, before the tach-
ometer needle is Ôof the way to the red area
of the tachometer.
RDo not manually shift to a lower gear to brake
the vehicle.
RTry to avoid depressing the accelerator pedal
beyond the point of resistance (kickdown).
Additional breaking-in notes for Mercedes-AMG
vehicles:
RDo not drive faster than 85 mph (140 km/h)
for the first 1,000 miles (1,500 km).
ROnly allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
RChange gear in good time.
RIdeally, for the first 1,000 miles (1,500 km),
drive in the Comfortdrive program.
After 1000 miles (1500 km),you can increase
th eengin espeed gradually and accelerate th e
vehicl eto full speed.
You should also observ ethese note son break-
in g in if th eengin eor part sof th edri ve tra
in on
your vehicl ehav ebeen replaced.
Always observ eth emaximum permissibl e
speed.
Driving
Impor tant safety notes
GWARNIN G
Objects in th edriver's footwell can restrict th e
pedal travel or obstruct adepressed pedal .
The operating and roa dsafet yof th evehicl eis
jeopardized. There is aris kof an accident.
Mak esur ethat all objects in th evehicl eare
stowed correctly, and that they canno tente r
th edriver's footwell. Install th efloormats
securel yand as specified in order to ensur e
sufficien tclearance for th epedals. Do no tuse
loos efloormats and do no tplac efloormats on
to pof on eanother.
GWARNIN G
Unsuitable footwear can hinder correc tusage
of th epedals, e.g. :
Rshoes withthick sole s
Rshoes withhigh heels
Rslipper s
There is aris kof an accident.
Wear suitable footwear to ensur ecorrec t
usage of th epedals.
GWARNIN G
If you switch off th eignition while driving,
safety-relevant function sare only available
wit hlimitations, or no tat all. This could affect,
for example, th epowe rsteerin gand th ebrak e
boostin geffect. You will require considerably
mor eeffort to steer and brake. There is aris k
of an accident.
Do no tswitch off th eignition while driving.
GWARNIN G
If th eparkin gbrak ehas no tbeen full y
release dwhen driving, th eparkin gbrak ecan :
Roverheat and caus e afire
Rlose it shold function .
There is aris kof fir eand an accident. Releas e
th eparkin gbrak efull ybefore drivin goff .
Driving131
Driving and parking
Z

Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park positionP
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
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
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 P
(Ypage 140).
The transmission position display in the mul-
tifunction display shows P(
Ypage 142).
iYou can start the engine in transmission
position Pand N.
Starting procedure with the SmartKey
XTo start a diesel engine : turn the SmartKey
to position 2in the ignition lock (Ypage 132).
The % preglow indicator lamp in the instru-
ment cluster lights up.
XTurn the SmartKey to position 3in the ignition
lock and release it as soon as the engine is
running (
Ypage 132).
iVehicles with a diesel engine: you can
start the engine without preglow if the engine
is warm.
Using KEYLESS-GO to start the engine
The Start/Stop button can be used to start the
vehicle 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 function.
XDepress the brake pedal and keep it
depressed.
XPress the Start/Stop button once
(Ypage 132).
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 133).
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.
You can execute a maximum of two consecutive
starting attempts via your smartphone. If you
insert the SmartKey into the ignition lock, you
can carry out two more starting attempts.
134Driving
Driving an d parking

Once you have started the engine, you can
switch the engine off via your smartphone at any
time.
You can only start the engine via your smart-
phone if:
Rthe SmartKey is in the ignition lock
Rpark positionPis selected
Rthe accelerator pedal is not depressed
Rthe anti-theft alarm system is not activated
Rthe panic alarm is not activated
Rthe hazard warning lamps are switched off
Rthe hood is closed.
Rthe doors are closed and locked
Rthe windows and sliding sunroof are closed
Also make sure that:
Rthe fuel tank is sufficiently filled
Rthe starter battery is sufficiently charged
GWARNING
Limbs could be crushed or trapped if the
engine is started unintentionally during ser-
vice or maintenance work. There is a risk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started via
your smartphone before carrying out mainte-
nance or repairs. You can prevent an engine
start via your smartphone, for example, if you:
Rswitch on the hazard warning lamps
Rdo not lock the doors
Ropen the hood
Pulling away
General notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is
a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate. Depress the accelerator carefully when pulling
away.
The vehicle locks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking
feature (
Ypage 233).
It is only possible to shift the transmission from
position Pto the desired position if you depress
the brake pedal. Only then is the parking lock
released. If you do not depress the brake pedal,
the DIRECT SELECT lever can still be moved but the parking lock remains engaged.
iUpshifts take place at higher engine speeds
after a cold start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake (
Ypage 155).
Pulling away with a trailer
To ensure that you do not roll backwards when
pulling away on an uphill slope, engage the elec-
tric parking brake.
XPress and hold handle :.
The electric parking brake continues to brake
and prevent the vehicle from rolling back-
wards.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster remains on.
XDepress the accelerator pedal.
XAs soon as the vehicle/trailer combination isheld by the driving force of the engine, release
lever :.
the electric parking brake is released.
Driving135
Driving and parking
Z