Page 66 of 506

Unlocking/locking the driver's door using
th e mechanical key
%
Ifyo uwish tolock theve hicle entirely using
th e mechanical key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the mechanical key.
#Insertthe mechanical keyas far as it will go
into opening 1inthe co ver.
#Pull and hold the door handle.
#Pull the co ver on the mechanical keyas
st ra ight as possible away from theve hicle
until it releases.
#Re lease the door handle.
#To unlock :turn the mechanical keycounter -
clo ckwise toposition 1.
#Tolock: turnthe mechanical keyclo ckwise
to position 1.
#Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly.
Load compa rtment
Opening the tail gate
&
WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if theta il‐
gate is open when the engine is running,
especially if theve hicle is in motion.
#Alw ays switch off the engine before
opening theta ilgate.
#Ne ver drive with theta ilgate open.
64
Opening and closing
Page 69 of 506

#Vehicles with KEYLESS-GO: Press locking
button 2inthetai lgate.
If a keyis de tected outside theve hicle, the
ta ilgate closes and theve hicle is loc ked.
#Press remo teoperating switch 1forth e
ta ilgate.
#Ve hicles with HANDS-FREE ACCESS: Use
yo ur foot to kick below the bumper
(
→page 68).
Au tomatic reve rsing function for the tail gate
The tailgate is equipped with automatic obs tacle
de tection wi threve rsing function. If a solid
object bloc ksorrestricts theta ilgate when auto‐
matically closing, theta ilgate automatically
opens again slightly . The automatic obs tacle
de tection wi threve rsing function is only an aid.
It is not a substitute foryo ur attentiveness when
closing theta ilgate.
#When closing, make sure that no body parts
are in the closing area.
&
WARNING Risk of becoming trapped
despite there ve rsing function
The reve rsing function does not react:
RTo soft, light and thin objects, e.g. fin‐
ge rs.
ROver the last Óin (8 mm) of the closing
path.
In these situations in particular, there ve rsing
function cannot pr event someone being trap‐
ped.
#When closing, make surethat no body
parts are in the closing area.
If someone is trapped:
RPress thep button on the SmartK ey,
or
RPress or pull there mo teoperating switch
on the driver's door, or
RPress the closing or locking button on the
ta ilgate, or
RPull theta ilgate handle.
Opening and closing 67
Page 70 of 506

HANDS-FREEACCESS function
With HANDS-FREE ACCESS you can open, close
or stop the closing process of theta ilgate by
per form ing a kicking mo vement under there ar
bumper.
The kicking mo vement triggers the opening or
closing process alternately. Obser
vethe no tes when opening (
→page 64)
and closing (→page 66) theta ilgate.
% Twowa rning tones sound when thetai lgate
is opening or closing.
& WARNING Risk of burn s causedbya hot
ex haust sy stem
The vehicle exhaust sy stem can become very
hot. If you use HANDS- FREEACCESS, you
could burn yourself by touching theex haust
sy stem.
#Alw ays ensure that you only ma kea
kicking mo vement within the de tection
ra nge of the sensors.
* NO
TEVehicle damage due tounin ten‐
tional opening of theta ilgate
Rwhen using an automatic car wash
Rwhen using a high pressure cleaner
#Deactivate KEYLESS-GO or make sure
that theke ylocated is at leas t10 ft
(3 m) away from theve hicle in such sit‐
uations.
When making the kicking mo vement, make sure
th at you are standing firm ly on the ground you
could otherwise lose your balance, e.g. on ice.
Re quirements:
RThe SmartK eyis behind theve hicle.
RStand at least 12in (30 cm) away from the
ve hicle while per form ing the kicking mo ve‐
ment.
RDo not come into contact with the bumper
while making the kicking mo vement.
RDo not car ryout the kicking mo vement too
slowl y.
RThe kicking mo vement must be towa rdsth e
ve hicle and bac k.
68
Opening and closing
Page 71 of 506

1Sensor detection range
If se veral consecutive kicking mo vements are
not successful, waitte n seconds.
Sy stem limitations
The sy stem may be impaired or may not function
if:
RThe area around the sensor is dirty, e.g. due
to road salt or snow .
RThe kicking movement is made using a pros‐
th etic leg. The
tailgate can open or close unin tentional lyin
th efo llowing situations:
RIf persons' arms or legs mo veinthe sensor
de tection range, e.g. when polishing theve hi‐
cle, sitting on the edge of the cargo compart‐
ment, or picking up objects.
RIf objects are guided behind or placed behind
th eve hicle, e.g. charging cables, tensioning
st ra ps or luggage.
RWhen working on the trailer coupling, trailers
or rear bicycle rack s.
Deactivate KEYLESS-GO (
→page 57) or do not
car rythe SmartK eyabout your person in such
situations.
Limiting the opening angle of the tailgate
Ac tivating the opening angle limiter
Yo u can limit the opening angle of theta ilgate in
th eto p half of its opening range, toappr ox‐
imately 8 in (20 cm) before the end position.
#St op the opening procedure of theta ilgate at
th e desired position.
#Press and hold the closing button in theta il‐
ga te until you hear a short acoustic signal.
The opening angle limiter is activated. The
ta ilgate then stops in thestored position
when opened.
To open theta ilgate full y,pull the handle on the
outside of theta ilgate again af ter it has stopped
automaticall y.
Deactivating th eopening angle limiter
#Press and hold the closing button on theta il‐
ga te unt iltwo short tones sound.
Un locking the tailgate with the mechanical
ke y
#Foldthere ar seat backrest forw ard.
#Re mo vethe combined cargo co ver and net
(→page 108).
Opening and closing 69
Page 72 of 506
#Insert mechanicalkey2 into opening 1in
th e trim and push it in.
The tailgate is unloc ked.
Emer gency release of the tailgate from the
inside (vehicles with a folding bench seat)
#Press the co ver down in the direction of
ar row 1and pull in the direction of ar row
2 and remo veit.
#Pull the emer gency release le ver in the direc‐
tion of ar row3.
The tailgate is unloc ked.
Ro ller sun blinds
Extending there ar side window roller sun‐
blinds
* NO
TEDama getothe inertia reel due to
it snapping back
If suddenly snapped bac k,the inertia reel
may be damaged.
#Alw ays mo vethero ller sun blind by
hand.
#Do not drive with thero ller sun blind
hooked in and side windo wsopened at
th e same time.
70
Opening and closing
Page 75 of 506

#Press and holdthe% button on the
SmartK ey
The following functions are per form ed:
RThe vehicle is unloc ked.
RThe side windo wsare opened.
RThe sliding sunro of is opened.
RThe panoramic sliding sunroof is opened.
RThe seatventilation of the driver's seat is
switched on.
If th ero ller sunblinds of the panoramic sliding
sunroof are closed, thero ller sunblinds are
opened firs t.
#To continue the opening procedu re:press
th e% button again.
#Tointer rupt convenience opening: release
th e% button.
Closing side windo wsfrom the outside (con‐
ve nience closing)
&
WARNING Risk of entrapment caused by
inadver tent con venience closing
When the con venience closing feature is
operating, parts of the body could become
trapped in the closing area of the side win‐
dow and the sliding sunroof.
#Obser vethe comple teclosing proce‐
dure when using con venience closing.
#When closing, make surethat no body
parts are in the closing area.
#Press and hold the& button on the
SmartK ey.
The following functions are per form ed:
RThe vehicle is loc ked.
RThe side windo wsare closed.
RThe sliding sunro of is closed.
RThe panoramic sliding sunroof is closed.
#Toclose thero ller sunblinds: pressthe
& button again.
#Tointer rupt convenience closing: release
th e& button.
% Con venience closing can also be operated
wi th KEYLESS-GO (
→page 61).
Problems with the side windo ws
Problem
Possible causes/consequences and MSolutions
A side window cannot be closed and
yo u cannot see the cause.
#Check tosee if any objects are in the window guide.
Opening and closing 73
Page 82 of 506

Anti-theft protection
Fu nction of the immobilizer
The immobilizer pr events your vehicle from being
st ar ted without the cor rect SmartK ey.
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on.
When leaving theve hicle, alw aysta ke the Smart‐
Ke ywit hyo u and lock theve hicle. An yone can
st art the engine if a valid SmartK eyhas been left
inside theve hicle.
% Ifth eeve ntthat the engine cannot bestar‐
te d (y ettheve hicle's battery is charge d), the
sy stem is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FO R-MERCedes (in the USA) or
1-800-387-0 100 (in Canada).
ATA (anti-theft alarm system)
Fu nction of theATA system (anti-theft ala rm
sy stem)
If th eATA system is armed, a visual and audible
alarm is triggered in thefo llowing situations:
RA door is opened.
RThe tailgate is opened.
RThe hood is opened.
The ATA system is armed automatically af ter
appr oximately 10seconds:
RAfter locking theve hicle with the SmartK ey.
RAf ter locking theve hicle using KEYLESS-GO.
When theATA system is armed, indicator lamp
1 flashes.
The ATA sy stem is automatically deactivated:
RAf ter unlocking theve hicle with the Smart‐
Ke y.
RAfter pressing thest art/ stop button with the
SmartK eyinside theve hicle.
80
Opening and closing
Page 83 of 506
RAfter unlocking theve hicle using KEYLESS-
GO.
% When the mbrace service (
→page 295) is
active and the alarm stay s on for more than
30 seconds, a message is automatically sent
to the Cus tomer Assis tance Center.
Deacti vating the ATA(anti-theft alarm sys‐
te m) ala rm
#Pressthe%, &orp button on the
SmartK ey.
or
#Press thest art/ stop button (the SmartK eyis
inside theve hicle).
St opping the ala rmusing KEYLESS-GO
#Grasp the outside door handle (with the
SmartK eyoutside theve hicle).
Opening and closing 81