Page 89 of 537

#
Press release knob 2down fully and slide
co ver1 inthe direction of the ar row. #
Fold out co ver1 inthe direction of the ar row
and remo ve. #
Remo vebattery compartment 3and take
out the dischar ged batter y. #
Insert the new battery into battery compart-
ment 3. Obser vethe positive pole marking in
th e battery compartment and on the battery
when doing this. #
Push in battery compartment 3.#
Re-attach co ver1 and push it until it
engages. Pr
Pr
oblems wit
oblems wit h t
h the key
he key , tr
, troubleshoo
oubleshoo ting
ting Y Y
ou can no long ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle
ehicle
Po ssible causes:
R The key battery is weak or dischar ged. #
Check the battery using the indicator lamp
(/ page 83). #
Replace theke y batter y,if necessary
(/ page 85). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 90). #
Have theke ych ecked at a quali/ed specialist
wo rkshop.
Ther
Ther e is int
e is int erf
erfer
erence fr
ence fr om a pow
om a pow er
erful r
ful r adio signal
adio signal
sour sour ce ce
Po ssible causes if the function of theke y is
impaired:
R high voltage po wer lines
R mobile phones
R electronic devices (no tebooks, tablets) R
shielding due tome tal objects or induction
loops for electrical gate systems or automatic
bar riers #
Make sure that there is su1cient distance
between theke y and the po tential sou rce of
inter fere nce.
Y
Y ou hav
ou hav e los
e lost a key
t a key #
Have theke y deactivated at a quali/ed spe-
cialist workshop. #
If necessar y,ha ve the mechanical lock
re placed as well. Doors
Doors
N
No
ot
tes on t
es on t he additional door lock
he additional door lock The additional door lock is only
available forve hi-
cles forth e United Kingdom. 86
86
Opening and closing
Page 90 of 537

&
W
W ARNI NG
ARNI NGRisk of injury topersons inside
th eve hicle when the additional door lock
is activated
If th e additional door lock is activated, the
doors can no longer be opened from the
inside. #
Never lea vepersons, in particular chil-
dren, unattended in theve hicle. #
Ifth ere are persons in theve hicle, do not
activate the additional door loc k.The additional door lock is automatically activated
in
thefo llowing situations:
R The vehicle is loc ked using thekey.
R The vehicle is loc ked using KEYLESS-GO.
If th eve hicle has been loc ked via Mercedes me
connect, the additional door lock is not activated
(/ page 324).
If th e additional door lock is activated, the doors
cannot be opened from the inside.
% ATer locking you can issue a signal with the
horn. Yo
u can pr event the additional door lock from
being activated bydeactivating interior pr otection
before locking theve hicle (/ page 106). U Unloc
nloc king/opening t
king/opening t he door
he doors fr
s from t
om t he inside
he inside #
U
Unitnit ed Kingdom only
ed Kingdom only :
:obser vethe no tes on
th e additional door lock (/ page 86). #
Pull door handle 2.
Locking pin 1pops up when the door is
unloc ked. Centr
Centr
all
ally loc
y loc king and unloc
king and unloc king t
king the v
he v ehicle fr
ehicle fr om
om
t
t he inside
he inside #
T
To unloc
o unloc k:
k:press 1button. #
T
To loc
o loc k:
k:press button 2. Opening and closing
87
87
Page 91 of 537

This does not lock or unlo
ckthe fuel /ller 0ap.
Plug-in h
Plug-in h ybr
ybrid:
id:the soc ket 0ap is also loc ked and
unloc ked. The soc ket 0ap can be opened even if a
ke y is de tected in the car.
The vehicle is not unloc ked:
R ifyo u ha veloc kedth eve hicle using thekey
R ifyo u ha veloc kedth eve hicle using KEYLESS-
GO Loc
Loc
king/unloc
king/unloc king t
king the v
he vehicle wit
ehicle wit h KEYLESS-GO
h KEYLESS-GO R R
eq eq uir
uir ements:
ements:
R The key is outside theve hicle.
R The dis tance between theke y and theve hicle
does not exceed 1 m.
R The driver's door and the door on which the
door handle is used are closed.
* NO
NO TE
TEVehicle damage due touninten-
tional opening of theta ilgate R
when using an automatic car wash
R when using a high pressure cleaner #
Deacti vate the function of theke y in
th ese situations.
or #
Make sure that theke y is at a minimum
dis tance of 3 m away from theve hicle. Obser
vethe no tes:
R onwashing theve hicle in a car wash
(/ page 350)
R on using a high pressure cleaner
(/ page 351) #
T To unloc o unloc k t
k the v
he v ehicle:
ehicle: touch the inner sur face
of the door handle. #
T To loc o loc k t
k the v
he v ehicle:
ehicle: touch sensor sur face 1
or 2. #
Conv Conv enience closing:
enience closing: touch recessed sensor
sur face 2 until the closing process has been
comple ted. 88 88
Opening and closing
Page 92 of 537

%
Further information on con venience closing
(/ page 99).
If yo u open theta ilgate from outside, it is auto-
matically unloc ked. Pr
Pr
oblems wit
oblems wit h KEYLESS-GO, tr
h KEYLESS-GO, tr oubleshoo
oubleshooting
ting Y
Y
ou can no long
ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle using
ehicle using
KEYLESS-GO
KEYLESS-GO
Po ssible causes:
R The function of theke y has been deactivated.
R The key battery is weak or dischar ged. #
Activate the function of theke y (/ page 84). #
Check the battery using the indicator lamp
(/ page 83). #
Replace theke y batter y,if necessary
(/ page 85). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 90). #
Have theve hicle and keych ecked at a quali-
/ed specialist workshop. Ther Ther
e is int
e is int erf
erfer
erence fr
ence fr om a pow
om a pow er
erful r
ful r adio signal
adio signal
sour
sour ce
ce
Po ssible causes if the function of KEYLESS-GO is
impaired:
R high voltage po wer lines
R mobile phones
R electronic devices (no tebooks, tablets)
R shielding due tome tal objects or induction
loops for electrical gate systems or automatic
bar riers #
Make sure that there is su1cient distance
between theke y and the po tential sou rce of
inter fere nce. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the aut
he automatic loc
omatic loc king f
king fea-
ea-
ture
ture The
vehicle is loc ked automatically when theve hi-
cle is switched on and the wheels are turning
fa ster than walking pace. #
T To activ o activ at
ate:
e: press and hold button 2for
appr oximately /ve seconds until an acoustic
signal sounds. #
T To deactiv
o deactiv at
ate:
e: press and hold button 1for
appr oximately /ve seconds until an acoustic
signal sounds. Opening and closing
89 89
Page 93 of 537

In
thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
R while theve hicle is being tow- star ted or
pushed
R ifth eve hicle is being tested on a roller dyna-
mome ter P
P
o
ow
w er closing function
er closing function &
W WARNING ARNING Risk of becoming trapped when
th e doors close automatically
Body parts or objects can become trapped,
causing injuries. #
Ensure that no body parts or objects are
in the closing area. #
Automatic closing of the doors can be
cancelled bypulling the outer or inner
door handle. If
yo u push the door into the lock tothe /rst
de tent position, the po wer closing function will
automatically pull the door into the loc k. Loc
Loc
king/unloc
king/unloc king t
king the dr
he driv
iver's door wit
er's door wit h t
h the
he
emerg
emerg encykey
ency key %
Ifyo u wish tolock theve hicle entirely using
th e emer gency key,/rst press the button for
locking from the inside while the driver's door
is open. Then proceed tolock the driver's
door using the emer gency key. #
Remo vethe emer gency key (/ page 85). #
Inse rtthe emer gency key as far as it will go
into opening 1inthe co ver. #
Pull and hold the door handle. #
Pull the co ver on the emer gency key as
straight as possible away from theve hicle until
it re leases. #
Release the door handle. 90
90
Opening and closing
Page 94 of 537

#
T
To unloc
o unloc k:
k:turn the emer gency key anti-cloc k-
wise toposition 1. #
T
To loc
o loc k:
k:turn the emer gency key clockwise to
position 1. #
Carefully press the co ver onto the lock cylin-
der until it engages and is seated /rml y.Load com
Load com
par
partment
tment Opening t
Opening t
he t
he tailg
ailgate
ate &
D
D AN
AN GER
GER Risk of poisoning from exhaust
ga ses
Combustion engines emit poisonous exhaust
ga ses, such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if theta il-
ga te is open when the engine is running, espe-
cially if theve hicle is in motion. #
Always switch o. the engine before
opening theta ilgate. #
Never drive with theta ilgate open. *
N
NOOTE
TE Damage totheta ilgate caused by
obstacles abo vetheve hicle The
tailgate swings rear wa rds and upwards
when it is opened. #
Make sure that there is su1cient space
behind and abo vetheta ilgate. #
Pull on the handle forth eta ilgate in the
bumper abo vethe number plate. #
V
Vehicles wit
ehicles wit h HANDS-FREE A
h HANDS-FREE A CCESS:
CCESS:make a
kicking mo vement with your foot below the
bumper (/ page 94). #
Pull remo teoperating switch 1until theta il-
ga te opens.
or #
Press and hold thep button on thekey. #
Ifth eta ilgate is stopped in an intermediate
position, pull it upwards. Release it as soon as
it begins toopen. Opening and closing
91
91
Page 95 of 537

If an obs
tacle obstructs theta ilgate during the
automatic opening process, bloc kage detection
will stop theta ilgate. The automatic bloc kage
de tection function is only an aid. It is not a substi-
tute foryo ur attentiveness. Closing t
Closing t
he t
he tailg
ailgate
ate &
W
WARNING
ARNING Risk of injury from unsecured
items in theve hicle
If objects, lug gage or loads are not secured or
not secured su1cient ly,they could slip, tip
ov er or be thro wn around and thereby hit vehi-
cle occupants.
There is a risk of injur y,particular lyin the
eve nt of sudden braking or a sudden change
in direction. #
Always st owobjects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug-
ga ge or loads against slipping or tipping
ove r. Obser
vethe no tes on loading theve hicle. N No
ot tes on closing t
es on closing t he t
he tailg
ailgat
ate:
e: your vehicle is
equipped with automatic keyre cognition. If a key
belonging totheve hicle is de tected in theve hicle,
th eta ilgate will not be loc ked.
No tethat theta ilgate will not be loc ked in thefo l-
lowing situation:
R You ha veloc kedth eve hicle and close theta il-
ga te while a key belonging totheve hicle is
inside theve hicle.
and
R A second key belonging totheve hicle is not
de tected outside theve hicle.
Au tomatic keyre cognition is only an aid and is not
a substitute foryo ur attentiveness. #
Before locking, ensure that at least one key
belonging totheve hicle is outside theve hicle. #
T To close t
o close t he t
he t ailg
ailgat
ate:
e: pull theta ilgate down-
wa rds slightl y.Re lease it as soon as it begins
to close. &
W
WARNING
ARNING Risk of becoming trapped dur-
ing automatic closing of theta ilgate
Body parts may become trapped. There may
be people in the closing area. #
Make sure that nobody is in the vicinity
of the closing area during the closing
process.
Use one of thefo llowing options tostop the
closing process:
R Press thep button on thekey.
R Press or pull there mo teoperating switch
on the driver's door.
R Press the closing or locking button on the
ta ilgate.
R Pull theta ilgate handle. V V
ehicles wit
ehicles wit h HANDS-FREE A
h HANDS-FREE A CCESS:
CCESS:it is also
possible tostop the closing process bymaking a
kicking mo vement below there ar bumper. 92 92
Opening and closing
Page 96 of 537

#
Switch on the po wer supply or theve hicle. #
Push remo teoperating switch 1until theta il-
ga te is fully closed. #
Press closing button 1ontheta ilgate.
V
V ehicles wit
ehicles wit h KEYLESS-GO
h KEYLESS-GO #
Press locking button 2ontheta ilgate.
If a key is de tected outside theve hicle, the
ta ilgate will close and theve hicle will be
loc ked. #
Press and hold thep button on thekey.
The key must be in the vicinity of theve hicle. V
V
ehicles wit
ehicles wit h HANDS-FREE A
h HANDS-FREE A CCESS
CCESS #
Make a kicking mo vement with your foot
below the bumper (/ page 94).
A
A ut
ut omatic rev
omatic rever
ersing function f
sing function f or t
or the t
he t ailg
ailgate
ate
The tailgate is equipped with automatic bloc kage
de tection with a reve rsing function. If an obstacle
obstructs theta ilgate during the automatic closing
process, it will automatically open again slightl y.
Au tomatic bloc kage detection with there ve rsing
function is only an aid and is not a substitute for
yo ur attentiveness. #
During the closing process, make sure that no
body parts are in the closing area. &
W
WARNING
ARNING Risk of becoming trapped
despite reve rsing function
The reve rsing function will not react:
R tosoT, light and thin objects, e.g. /n gers
R towa rdsth e end of the closing procedure
In these situations in particular, there ve rsing
function cannot pr event someone being trap-
ped. Opening and closing
93
93