
Child-proof locks
Important safety notes G
WARNING
If children ar etravelling in the vehicle, they
could:
R open doors, thus endangering other people
or road users
R exit the vehicl eand be caught by oncoming
traffic
R operate vehicl eequipment and become
trapped, for example
There is arisk of an accident and injury.
Always activate the child-proof locks and
overrid efeature if children are travelling in the
vehicle. When leaving the vehicle, alwayst ake
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
Child-proof locks for the rear doors
(Y page5 1).
Observe the important safety notes on the dou-
ble-lock function (Y page57). G
WARNING
If you leave children unattended in the vehi-
cle, they may be abletos et the vehiclein
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position P
R start the engine
In addition, they may operate vehicl eequip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alwayst ake the key
with you and lock the vehicle. Never leave
children unattended in the vehicle. G
WARNING
If persons (particularly children) are exposed
to heatorc old foraprolonged period, there is
ar isk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle. G
WARNING
If the child restraint system is placed in direct sunlight, the parts coul dbecome very hot.
Childre ncouldbes uffer burns by touching
these parts, in particular on the metallic parts
of the child restraint system. There is arisk of
injury.
If you and yourc hild leave the vehicle, always
make sure that the child restraint system is
not in direct sunlight. Cove ritwithablanket,
for example. If the child restraint system has
been expose dtodirect sunlight, leave it to
cool downb efore securing the child in it.
Never leave children unattended in the vehi-
cle.
Child-proof locks for the rear side doors
and rear door You can secure eac
hdoor individually with the
child-proof lock sonthe rear doors .Adoor
secured with achild-proof lock cannot be
opene dfrom inside the vehicle. When the vehi-
cle is unlocked, the door can be opene dfrom the
outside. X
To activate: press thechild-proof lock lever
down in the direction of arrow ;.
X Make sure tha tthe child-proof lock is working
properly.
X To deactivate: press the child-proof lock
lever up in the direction of arrow :. Child
renint hevehicle
51Safety 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 vehicl eequipment and become
trapped, for example
R switch vehicl esystems on or off, thus
endangering other road users
In the event of an accident, sudden braking or
abrupt changes of direction, unsecured ani-
mals coul dbeflung around the vehicle, injur-
ing the vehicl eoccupants. 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 anima ltransport box. Driving safe
tysystems Drivin
gsafet ys ystems overview
In this section ,you will fin dinformati on about
th ef ollowin gdrivin gsafet ysystems:
R AB S(Anti-lock Braking System)
(Y page 52)
R BA S(Brake Assist System) (Y page 53)
R Adaptive brake lights (Y page 53)
R ESP ®
(Electronic Stability Program)
(Y page 53)
R EB D( electronic brak eforce distributi on)
(Y page 55)
R ADAPTIV EBRAKE (Y page 56) Important safety notes
If you fail to adapt your driving style or if you are
inattentive, th edriving safet ysystems can nei-
ther reduce th eriskofana ccidentnor override
th el aws of physics .Drivin gs afet ysystems are
merely aids designed to assist driving .You are
responsible for maintainin gthe distanc etothe
vehicl einfront,for vehicl espeed, for braking in
goo dtime, and for staying in lane. Always adapt
your driving style to suit th eprevailing road and weather conditions and maintain
asafe distance
fro mt hevehicle in front .Drive carefully.
The driving safet ysystems described work as
effectively as possible only when there is ade-
quate contac tbetween th etyres and th eroad
surface. Pay particular attention to th einforma-
tio nr egarding tyres, recommended minimum
tyr etread depths etc .inthe"Wheels and tyres"
sectio n(Ypage 235).
In wintry driving conditions ,always use winter
tyres (M+S tyres) and, if necessary, snow
chains. Only in this way will th edriving safety
systems described in this sectio nwork as effec-
tively as possible. ABS (Anti-lock Braking System)
Genera linformation AB
Sregulate sbrake pressure in such awaythat
the wheels do not lock when yo ubrake. This
allows yo utocontinue steering the vehicl ewhen
braking.
The yellow !ABS warning lamp in the instru-
ment cluster lights up when the ignition is
switched on. It goe soutwhen the engine is run-
ning.
ABS works from aspeed of abou t8km/h,
regardless of road-surface conditions. ABS
works on slippery surfaces ,evenw heny ou
brake onl ygently.
Important safety notes i
Observ
ethe "Important safety notes" sec-
tion (Y page 52). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired.A ddition-
ally, further driving safety systems are deac-
tivated. There is an increased dange rofskid-
ding and accidents.
Drive on carefully.H ave ABS checked imme-
diately at aqualified specialist workshop.
If ABS is malfunctioning, other systems ,includ-
ing driving safety systems ,willa lsob ecome
inoperative. Observe the information on the ABS warning lamp (Y page158) and display mes- 52
Driving safety systemsSafety

sages which may be shown in the instrument
cluster (Y page 142).
Braking X
If ABS intervenes: continue to depress the
bra kepedal with force until th ebraking sit-
uatio niso ver.
X To make afullb rake application: depress
th eb rak epedal with full force.
If AB Sintervene swhen braking ,you will fee la
pulsin ginthebrak epedal.
The pulsating brak epedal can be an indication
of hazardous road conditions; this serves as a
reminder to tak eextra car ewhile driving.
Off-road ABS An ESP
®
syste mspecifically suite dtooff-road
terrain is activated automaticall yonce the off-
roa dprogra misa ctivated.
At speed sbelow 60 km/h ,the front wheels lock
cyclically during braking .The digging-i neffect
achieved in the proces sreduce sthe stopping
distance during off-roa ddriving .Thisl im its
steering capability. BAS (Brak
eAssis tSystem)
General information BAS operate
sinemergency braking situations.
If yo udepress the brake pedal quickly ,BAS
automaticall yboosts the braking force ,thus
shortening the stopping distance.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 52). G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is arisk of accident.
In an emergency braking situation, depress
the brake peda lwith full force. ABS prevents
the wheels from locking. Braking X
Keep the brake pedald epressed firmly until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes willf unction as usual once you
release the brake pedal. BAS is deactivated. Adaptiv
ebrake lights
The adaptive brak elights warn followin gtraffic
in an emergenc ybraking situation by:
R flashin gbrak elamps
R activating th ehazard warning lamps
If you brak esharply from aspee dofm oret han
50 km/h or if braking is assisted by BAS, the
brak elamp sflas hrapidly. In this way, traffic
travellin gbehind you is warned in an eve nmore
noticeable manner.
If you brak esharply from aspee dofm oret han
70 km/h to astandstill, th ehazard warning
lamp sare activated automatically. If th ebrakes
are applie dagain ,the brak elamp sligh tupc on-
tinuously. The hazard warning lamp sswitch off
automatically if you travel faste rtha n1 0k m/ h.
You can also switch off th ehazard warning
lamp susingthe hazard warning button
(Y page 76). ESP
®
(Electronic Stability Program)
General notes i
Observ
ethe "Important safety notes" sec-
tion (Y page 52).
ESP ®
monitors driving stability and traction, i.e.
power transmission between the tyres 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 stabilise 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 awayon
wet or slippery roads. ESP ®
can also stabilise
the vehicle during braking. Driving safe
tysystems
53Safety Z

4ETS (Electronic Traction System)
i
Observ
ethe "Important safety notes" sec-
tion (Y page 52).
4ETS traction control is part of ESP ®
.
4ETS traction control is no longer active above a
speed of approximately 60 km/h.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
awaya nd accelerate on slippery surfaces, e.g. if
the road surface is slippery on one side. In addi-
tion, more drive torque is transferred to the
wheel or wheels with traction.
Traction control remains active if you deactivate
ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 52). G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
Drive on carefully.H ave ESP®
checked at a
qualified specialist workshop.
! Only operate the vehicl
efor am aximu mof
ten seconds on abrake dynamometer. Switch
off the ignition.
Application of the brakes by ESP ®
may oth-
erwise destroy the brake system.
! Af
unction or performance test should only
be carrie dout on atwin-axle dynamometer.
Before you operate the vehicl eonsuch a
dynamometer, please consult aqualified
workshop. You coul dotherwise damage the
drive train or the brake system.
If the å ESP®
OFF warning lamp lights up
continuously,E SP®
is deactivated.
If the ÷ ESP®
warning lamp lights up contin-
uously,E SP®
is not available due to amalfunc-
tion.
Observe the information on warning lamps
(Y page1 59) and display messages which may
be displayed in the instrument cluster
(Y page1 42). Use only wheels with the recommended tyre
sizes. Only then will ESP ®
functio nproperly.
If differential locks are switched on, ABS,B AS
and ESP ®
switch off automatically.
Characteristics of ESP ® General information
If the ÷ ESP warning lamp goes out before
you begin the journey, ESP ®
is automatically
active.
If ESP ®
intervenes,t he÷ ESP®
warning lamp
flashes on the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away, depress the accelerator
pedalo nly as far as is necessary.
X Adapt yourd riving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automaticall yifthe vehicle stops
moving. When the vehicle pulls awaya gain, the
engine starts automatically. ESP ®
remains in its
previously selected status, e.g. if ESP ®
was
deactivated before the engine was automati-
callys witched off.
Deactivating/activating ESP ® Im
portant safety notes
i Observ
ethe "Importan tsafety notes" sec-
tio n(Ypage 52).
You can select between th efollowin gESP®
sta-
tuses:
R ESP ®
is activated
R ESP ®
is deactivated G
WARNING
If yo udeactivate ESP ®
,E SP ®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following. 54
Driving safety systemsSafety

It may be best to deactivate ESP
®
in the follow-
ing situations:
R when snow chains are used
R in deep snow
R on sand or gravel
R off-road
Spinning the wheelsr esults inacutting action,
which enhances traction.
Activate ESP ®
as soon as the situations descri-
bed above no longer apply. ESP ®
willo therwise
not be abletos tabilise the vehicle if the vehicle
starts to skid or awheel starts to spin.
Deactivating/activating ESP ®X
To deactivate: press button:until the
å warning lamp lights up in the instrument
cluster.
X To activate: press button :until the å
warning lamp goes out in the instrument clus-
ter.
Characteristic swhenE SP®
is deactivated
If ESP ®
is deactivate dand one or more wheels
start to spin, the ÷ESP®
warning lamp on
the instrument cluster flashes. In such situa-
tions, ESP ®
will not stabilise the vehicle.
If yo udeactivate ESP ®
:
R ESP ®
no longer improve sdriving stability
R engine torque is no longer limite dand the
drive wheels may start to spin
R tractio ncontro lisstilla ctivated
R ESP ®
stil lprovides support when yo ubrake
firmly
R and are driving at aspeed above 60 km/h,
ESP ®
stil lintervene swheno ne whee lreaches
its gri plim it eve nthough it is deactivated Trailer stabilisation General information
If you rvehicle/trailer combinatio nbegins to
lurch, ESP ®
assists you in this situation. ESP ®
slowst he vehicle down by braking and limiting
the engine outpu tuntil the vehicle/trailer com-
binatio nhas stabilised.
Important safety notes G
WARNING
If road and weather conditions are poor,
trailer stabilisation willn ot be abletoprevent
the vehicle/trailer combination from swerv-
ing. Trailers with ahigh centre of gravity can
tip over before ESP ®
can detect this. There is
ar isk of an accident.
Always adapt yourd riving style to the prevail-
ing road and weather conditions.
If yourv ehicle/trailer combination begins to
lurch ,you can stabilise the vehicle/trailer com-
bination only by depressing the brake firmly.
Trailer stabilisation is active above speeds of
about 60 km/h.
ESP ®
trailer stabilisation does not work if ESP ®
is deactivated or disabledb ecause ofamalfunc-
tion. EB
D( electronic brak eforce distribu-
tion)
General information EB
Dm onitors and controls the brake pressure
on the rea rwheel stoi mprov edrivin gstability
whil ebraking.
Important safety notes i
Observ
ethe "Important safety notes" sec-
tion (Y page 52). G
WARNING
If EBD is malfunctioning, the rear wheels can
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 Driving safe
tysystems
55Safety
Z

Inserting th
eemergency key element X
Push emergenc ykey element ;completely
into the key until it engages and release
catch :is back in its basic position. Key battery
Important safety notes G
WARNING
Batterie scontain toxic and corrosive substan-
ces. If batterie sare swallowed,itc an result in
severe health problems. There is arisk of fatal
injury.
Keep batterie sout of the reach of children. If
ab attery is swallowed,s eek medical attention
immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them with the household rubbish.
They must be collected sep-
arately and disposed of in an environmentall yresponsible
recycling system. Dispose of batteries in an
environmentall
yresponsible
manner. Take discharged
batteries to aquali fied spe-
cialist workshop or to acol-
lectio npoint for used batter-
ies.
Mercedes-Benz recommends tha tyou have the
batteries replaced at aquali fied specialis twork-
shop. Checkin
gthe battery X
Pres sthe & or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 59).
If the key battery is checked within the signal
reception range of the vehicle, pressing the
& or% button:
R locks or
R unlocks the vehicle
i You can obtain
abattery from any qualified
specialist workshop.
Replacing the battery You require
aCR20253Vb utton cell battery.
X Take the emergenc ykey elemen tout of the
key (Y page 58). X
Press emergen cykey element ;into the
opening in the key in the direction of the arrow
until battery compartment cover :opens.
When doing so, do not hold battery compart-
ment cover :shut.
X Remove battery compartment cover :. Key
59Opening and closing Z

i
On the front-passenger side, the window
crank must be turned in the opposite direc-
tion. Sliding sunroof
Important safety notes
G
WARNING
While opening and closing the sliding sunroof, body parts in close proximity could become
trapped. There is arisk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro- cedures.
If somebody become strapped:
R release the switch immediately, or
R during automatic operation, press the
switch briefly in any direction
The opening or closing procedure willbes top-
ped. G
WARNING
If children operate the sliding sunroof they
coul dbecome trapped, particularl yifthey are
left unsupervised. There is arisk of injury.
When leaving the vehicle, alwayst ake the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
! Only open the panorama sliding sunroof if it
is free of snow and ice. Otherwise, malfunc-
tions may occur.
Do not allow anything to protrud efrom the
sliding sunroof. Otherwise, the seal scouldbe
damaged.
Resonance noises can occur in addition to the
usual airflow noises when the sliding sunroof is
open. They are caused by minor pressure fluc-
tuations in the vehicl einterior. Change the posi-
tion of the sliding sunroof or open aside window
slightly to reduce or eliminate these noises. Opening and closing the sliding sun-
roof
:
To raise
; To open
= To close/lower
X Turn the key to position 1or2 in the igni-
tion lock.
X Press or pull the ¡switchinthe corre-
sponding direction.
X To open automatically: press the
¡ switch beyond the point of resistanc ein
the direction of arrow ;.
The sliding sunroof opens completely.
X To interrupt automatic operation: press or
pull the ¡switch again.
Automatic operation is only availabl ewhen
opening.
i The sliding sunroof cannot be raised when a
roof rack is fitted. Operating the sliding sunroof man-
ually
The actuator motor for the sliding sunroof is
located on the left-hand side of the luggage
compartment,b ehind the rear panel trim. Sliding sunroof
65Opening and closing Z

Removin
gthe rear panel trim
X Open th erear door.
X Remove edge protection :on th edoor pillar
in th edirection of arrow ;.
X Pull bac krear panel trim =in th edirection of
arrow ?until th eelectrical connection can
be reached.
X Disconnect th eelectrical connection.
X Completely remove rear panel trim =.Opening/closing the slidin
gsunroof manually
X Remove wheel wrench Afrom the vehicle
tool kit (Y page 223).
X Place wheel wrench Aonto the hexagon nut
of the actuator motor. X
To open: turnw heel wrench Aanti-clock-
wise.
X To close: turn wheelwrench Aclockwise. Fitting the rea
rpanel trim
X Connect the electrica lconnection.
X Insert rea rpanel trim =.
Hook tabs Cof rea rpanel trim =into vehi-
cle sid ewallB.
X Insert edg eprotection :.
X Close the rea rdoor. Problems wit
hthe sliding sunroof G
WARNING
You could be severely or even fatally injured when closing the sliding sunroof with increased
closing force or if the anti-entrapment feature is deactivated .Make sure that nobody can become
trappe dwhen closing the sliding sunroof. Problem
Possible causes/consequences and
M
MSolutions The sliding sunroof can-
not be close
dand you
cannot see the cause. If the sliding sunroo
fisobstructed during closing and reopens again
slightly:
X Immediately after it blocks, pullt he¡ switch down again to the
point of resistance until the sliding sunroof is closed.
If the sliding sunroof is obstructed again during closing and reopens
again slightly: X Immediately after it blocks, pullt he¡ switch down again to the
point of resistance until the sliding sunroof is closed. If the sliding sunroof wills
till not open or close due to amalfunction, consult aqualifieds pecialist
workshop. 66
Sliding sunroofOpening and closing