
Windowbags
:are integrated in the side of the
roof frame and deploy in the area from the A-
pillar to the C-pillar.
When deployed, the windowbag enhances the
level of protection for the head. However, it does
not protect the chest or arms.
In the event of a side impact, the windowbag is
deployed on the side on which an impact occurs.
If the system determines that it can offer addi-
tional protection to that provided by the seat
belt, a windowbag may be deployed in other
accident situations (Y page 53).Automatic front-passenger front air-
bag deactivation
Introduction In order to recognise a child restraint system on
the front-passenger seat, the automatic front-
passenger front airbag deactivation system cat- egorises the person in the front-passenger seat.Depending on that result, the front-passenger
front airbag is either enabled or disabled. If a
rearward-facing child restraint system is fitted
to the front-passenger seat, the PASSENGER
AIR BAG OFF indicator lamp must light up after
the system self-test and remain lit. The front-
passenger front airbag is disabled.
The system does not disable:
R the sidebag
R the windowbag
R the seat belt tensioner
Make sure that your vehicle is equipped with the automatic front-passenger front airbag deacti-
vation system (Y page 60). If this is not the
case, always install a child restraint system on a
suitable rear seat (Y page 61).
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. Fully retract the seat cushion length.
The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of a forward-
facing child restraint system must, as far as
possible, rest flat against the backrest of the
front-passenger seat. The child restraint system must not touch the roof or be put under strain bythe head restraint. Adjust the angle of the seat backrest and the head restraint position accord-
ingly. Only then is the correct function of the
automatic front-passenger front airbag deacti-
vation system guaranteed. Always observe the
information on suitable positioning of the child
restraint system (Y page 61) in addition to the
child restraint system manufacturer's installa-
tion instructions.
Operation of automatic front-passenger
front airbag deactivation :
PASSENGER AIR BAG ON indicator lamp
; PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front airbag is disabled or ena-
bled. X Press the Start/Stop button once or twice, or
turn the key to position 1or 2in the ignition
lock.
The system carries out a self-diagnosis.
The PASSENGER AIR BAG OFF and PASSENGER AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front airbag:
R PASSENGER AIR BAG ON lights up for 60 sec-
onds, then both indicator lamps are off
(PASSENGER AIR BAG ON and OFF): the front-
passenger front airbag is able to deploy in the event of an accident.
R PASSENGER AIR BAG OFF lights up: the front-
passenger front airbag is disabled. It will then
not be deployed in the event of an accident.
If the PASSENGER AIR BAG ON indicator lamp is off, only the PASSENGER AIR BAG OFF indicator
lamp shows the status of the front-passenger
front airbag. The PASSENGER AIR BAG OFF indi- cator lamp may be lit continuously or be off. Occupant safety
49Safety Z

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.
Read the information on warning lamps
(Y page 283 )and display messages that may be
shown in the instrument cluster (Y page 250).
Only use wheels with the recommended tyre
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ®General notes
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
engages, the ÷ESP®
warning lamp
flashes in the instrument cluster.
If ESP ®
engages:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away, only depress the acceler-
ator pedal as far as is necessary.
X Adapt 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 if the vehicle stops
moving. When the vehicle pulls away again, the
engine starts automatically. ESP ®
remains in its
previously selected status, e.g. if ESP ®
was
deactivated before the engine was automati-
cally switched off.
Activating/deactivating ESP ®
(except
Mercedes‑AMG vehicles) Important safety notes
i Observe the "Important safety notes" sec-
tion (Y page 68). You can select between the following ESP
®
sta-
tuses:
R ESP ®
is activated
R ESP ®
is deactivated G
WARNING
If you deactivate ESP ®
, ESP ®
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.
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
Spinning the wheels results in a cutting action,
which enhances traction.
i Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilise the vehicle
if the vehicle starts to skid or a wheel starts to
spin.
Activating/deactivating ESP ® X
To deactivate: press button:.
The å ESP®
OFF warning lamp on the
instrument cluster lights up.
X To activate: press button :.
The å ESP®
OFF warning lamp on the
instrument cluster goes out.
Characteristics when ESP ®
is deactivated
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp on 74
Driving safety systemsSafety

X
To activate: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
is activated after approximately ten seconds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
or X Insert the key into the ignition lock.
or X Press the Start/Stop button.
The key must be in the vehicle.
A visual and audible alarm is triggered if the
alarm system is activated and you open:
R a door
R the vehicle with the emergency key element
R the tailgate
R the bonnet
X To stop the alarm with the key: press the
% or& button on the key.
The alarm stops.
or X Remove the Start/Stop button from the igni-
tion lock (Y page 144).
X Insert the key into the ignition lock.
The alarm stops.
X To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The key must
be outside the vehicle.
The alarm stops.
or X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm stops.
The alarm does not stop, even if you close the
open door that has triggered it, for example.
i If the alarm stays on for more than
30 seconds, the Mercedes‑Benz emergency
call system automatically sends a message to the Customer Centre. This is sent via text
message or a data connection. The emergency call system sends a message
or establishes a data connection provided
that:
R you have subscribed to the Mercedes ‑Benz
emergency call system
R the Mercedes‑Benz emergency call system
has been activated properly
R the necessary mobile phone network is
available Tow-away protection
Function An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This can occur if
the vehicle is jacked up on one side, for exam-
ple.
Activating/deactivating Tow-away protection is automatically switched
on and off with the ATA (anti-theft alarm system)
when:
R the doors are closed
R the tailgate is closed
Tow-away protection is active around
60 seconds after the ATA has been switched on (Y page 79).
Deactivating To prevent a false alarm, deactivate tow-away
protection if you lock your vehicle and it:
R is being transported
R is being loaded, e.g. onto a ferry or car trans-
porter
R is parked on a movable surface, e.g. in a split-
level garage
The tow-away alarm remains deactivated until
you switch the ATA on again after opening a
door.
You can deactivate tow-away protection via the multimedia system (see the Digital Owner's
Manual). 80
Protection against theftSafety

Key
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the outside, the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (see Digital Owner's Manual).
The doors can then be opened from the inside
after the vehicle has been locked from the out-
side. The anti-theft alarm system is triggered if
the door is opened from the inside. Switch off
the alarm (Y page 79).
All countries: G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves.
Children could also set the vehicle in motion, for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave children unattended in the vehicle. Always
keep the key out of reach of children. G
WARNING
If you attach heavy or large objects to the key, the key could be unintentionally 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
key. Remove any bulky keyrings before insert-
ing the key into the ignition lock.
! Keep the key away from strong magnetic
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 key: R with electronic devices, e.g. a mobile phone
or another key
R with metallic objects, e.g. coins or metal foil
R inside metallic objects, e.g. a metal case
This can impair the key's function.
Vehicles with KEYLESS-GO start function: do
not keep the key in the luggage compartment.
Otherwise, the key may not be detected, e.g.
when starting the engine using the Start/Stop
button.
A check that periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in or in the
direct vicinity of the vehicle. This occurs, for
example:
R during engine start
R during driving
R when using HANDS-FREE ACCESS
R when the external door handles are touched
R during convenience closing 82
KeyOpening and closing

Problem
Possible causes/consequences and
M
MSolutions You can no longer lock or
unlock the vehicle using
KEYLESS-GO. KEYLESS-GO has been deactivated.
X Reactivate KEYLESS-GO (Y page 83). The key battery is weak or discharged.
X Check the key battery (Y page 85) and replace if necessary
(Y page 85).
If this does not work: X Lock or unlock the vehicle using the emergency key element
(Y page 90). Interference from a powerful source of radio waves.
X Lock or unlock the vehicle using the emergency key element
(Y page 90). Fault with KEYLESS-GO.
X Lock or unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle cannot be locked or unlocked even using the remote
control function:
X Lock or unlock the vehicle using the emergency key element
(Y page 90).
X Have the vehicle and key checked at a qualified specialist work-
shop. The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 347).
or X Jump-start the vehicle (Y page 348).
or X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is in
the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is weak or discharged.
X Check the key battery (Y page 85) and replace if necessary
(Y page 85).
If this does not work: X Start your vehicle with the key in the ignition lock. Interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. Key
87Opening and closing Z

Opening automatically
You can open the tailgate automatically using
the key or by pressing the top of the Mercedes
star
:on the tailgate.
X Press and hold the Fbutton on the key
until the tailgate opens.
or X With the tailgate unlocked, press the top of
the Mercedes star :.
or X With the tailgate stopped in an intermediate
position, pull the tailgate upwards.
You can release the tailgate as soon as the
tailgate starts to open.
X When the reversing camera is activated:
pull on the folded-out Mercedes star
:.
The tailgate opens.
Closing automatically :
Closing button
; Locking button
X Press closing button :on the tailgate.
or
X Pull the tailgate downwards slightly.
You can release the tailgate as soon as the
tailgate starts to close. When the driver's door is closed, you can simul-
taneously close the tailgate and lock the vehicle.
To do this, the key must be in the KEYLESS-GO
detection range to the rear of the vehicle.
X Press locking button ;on the tailgate.
If KEYLESS-GO detects a key outside the vehi- cle, the tailgate closes. The vehicle is locked.
or
Vehicles with EASY-PACK tailgate and with
KEYLESS-GO or KEYLESS-GO start-function:
X If the key is located in the immediate vicinity
of the vehicle: press the Fbutton on the
key.
You can release the button as soon as the
tailgate starts to close.
If KEYLESS-GO detects a key only in the luggage
compartment after it is closed, the tailgate is
unlocked again.
If a second key is detected outside the vehicle,
the tailgate remains locked.
If KEYLESS-GO detects a key only in the luggage compartment before the closing process starts,
the tailgate remains open. HANDS-FREE ACCESS
Important safety notes G
WARNING
The vehicle exhaust system can become very
hot. If you use HANDS-FREE ACCESS, you
could burn yourself by touching the exhaust
system. There is a risk of injury. Always
ensure that you only make a leg movement
within the detection range of sensors.
! If the key is within the rear detection range
of KEYLESS-GO, the following situations, for
example, could lead to the unintentional
opening of the tailgate:
R using a car wash
R using a high-pressure cleaner
Make sure that the key is at least 3 m away
from the vehicle.
General notes With KEYLESS-GO and HANDS-FREE ACCESS,
you can open or close the tailgate or stop the
process without using your hands. This is useful92
Luggage compartmentOpening and closing

if you have your hands full. To do this, make a
kicking movement under the bumper with your
foot.
Observe the following points:
R Carry your KEYLESS-GO key with you. The key
must be in the KEYLESS-GO detection range
to the rear of the vehicle.
R When making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient clearance
to the rear of the vehicle. You could otherwise lose your balance, e.g. on ice. R
Always ensure that you only make a kicking
movement within the detection range of sen- sors :.
R Stand at least 30 cm away from the rear area
while doing so.
R Do not come into contact with the bumper
while making the kicking movement. Other-
wise, the sensors may not function correctly.
R HANDS-FREE ACCESS does not function dur-
ing engine start.
R Dirt caused by road salt around sensors :
may restrict functionality.
Using HANDS-FREE ACCESS with a pros-
thetic leg may restrict functionality.
R If a KEYLESS-GO key is in the KEYLESS-GO
detection range to the rear of the vehicle,
HANDS-FREE ACCESS could be triggered. The tailgate could thus be opened or closed
unintentionally, for example, if you:
- fold the ball coupling in or out
- couple or uncouple a trailer
- fit or remove a rear-mounted bicycle rack
- load/unload bicycles on/from a rear-
mounted bicycle rack
- sit on the edge of the luggage compartment
- set down or lift up an object behind the
vehicle
- polish the rear of the vehicle
Do not carry the KEYLESS-GO key with you in such situations. This will prevent uninten-
tional opening or closing of the tailgate.
Operation X
To open or close: kick into sensor detection
range :under the bumper with your foot.
Two warning tones sound while the tailgate is opening or closing.
X If the tailgate does not open or close after
several attempts: wait at least ten seconds
then kick under the bumper once again.
If you hold your foot under the bumper for too
long, the tailgate does not open or close. Repeat
the kicking movement more quickly if this
occurs.
To stop the opening or closing process, you have the following options:
R Kick with your foot into sensor detection
range :under the bumper.
R Press the top of the star on the tailgate.
R Press the closing button on the tailgate.
R Press the Fbutton on the key.
If the tailgate closing process has been stopped:
R Kick your foot under the bumper again and
the tailgate will open. Luggage compartment
93Opening and closing Z

only opens again automatically after the corre-
sponding switch is released. The automatic
reversing feature is only an aid and is no substi-
tute for your attention when closing a side win-
dow. G
WARNING
The reversing function does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R while resetting
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
When closing, make sure that no parts of the
body are in the closing area. If someone
becomes trapped, press the switch to open
the side window again. Opening and closing the side win-
dows
The switches for all side windows are located on
the driver's door. There is also a switch on each door for the corresponding side window.
The switches on the driver's door take prece-
dence. :
Front left
; Front right
= Rear right
? Rear left
X Turn the key to position 1or 2in the ignition
lock.
X To open manually: press and hold the cor-
responding button. X
To open fully: press the button beyond the
point of resistance and release it.
Automatic operation is started.
X To close manually: pull the corresponding
button and hold it.
X To close fully: pull the button beyond the
point of resistance and release it.
Automatic operation is started.
X To interrupt automatic operation: press/
pull the corresponding switch again.
If you press/pull the switch beyond the point of resistance and release, automatic operation is
started in the corresponding direction. You can
stop automatic operation by pressing/pulling
again.
You can continue to operate the side windows
after switching off the engine or removing the
key. This function remains active for five
minutes or until you open a front door.
The side windows cannot be operated from the
rear when the override feature for the side win-
dows is activated (Y page 67).
Information on opening and closing the roller
sunblinds on the rear side windows
(Y page 317). Convenience opening feature
General notes If the key is in the immediate vicinity of the vehi-
cle, the "convenience opening" feature is avail-
able.
Vehicles with KEYLESS-GO or KEYLESS-GO
start function: you can ventilate the vehicle
before you start driving.
To do this, the key is used to carry out the fol-
lowing functions simultaneously:
R unlock the vehicle
R open the side windows
R open the sliding sunroof
R switch on the seat ventilation for the driver's
seat
The "convenience opening" feature is also avail-
able when the vehicle is unlocked. 96
Side windowsOpening and closing