Page 65 of 562
Locking/unlockingtheve hicle centrally from
th e inside
#To unlock :press button 1.
#Tolock: press button 2.
This does not lock or unlock the fuel filler flap. The
vehicle is not unloc ked:
RIfyo u ha veloc kedth eve hicle using the
SmartK ey.
RIfyo u ha veloc kedth eve hicle using KEY‐
LESS-GO.
Locking and unlocking theve hicle with KEY‐
LESS-GO
Requ irements:RThe SmartK eyis outside theve hicle.
RThe dis tance between the SmartK eyand the
ve hicle does not exceed 3 ft(1 m).
RThe driver's door and the door at which the
door handle is used are closed.
#To unlock theve hicle: touch the inner sur‐
fa ce of the door handle.
#To lock theve hicle: touch sensor sur face
1 or2.
#Co nvenience closing: touch recessed sen‐
sor surf ace2for an extended pe riod.
% For fur ther information on con venience clos‐
ing (
→pa ge 75).
Opening and closing 63
Page 66 of 562
Ifyo u open the trunk lid from outside, the trunk
lid is automatically unloc ked.
Problems with KEYLESS-GO
Problem
Possible causes/consequences and MSolutions
Yo u can no longe r lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes:
RThe SmartK eybattery is dischar ged or nearly dischar ged.
RThere is inter fere nce from a po werful radio signal source.
RThe SmartK eyis defective.
#Check the battery using the battery check lamp and replace if necessary .
#Use the mechanical keyto lock or unlock theve hicle .
#Ha ve theve hicle and SmartK eychecked at a qualified specialist workshop.
Switching the automatic locking feature
on/off
The vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace.
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Opening and closing
Page 67 of 562

#Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
#To activate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds.
In thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
RThe vehicle is being towe d/pushed.
RThe vehicle is being tested on a dynamome‐
te r.
Information on the po wer closing function
fo r the doo rs
Ifyo u push the door into the lock up tothefirs t
de tent position, the po wer closing function will
au tomatically pull the door into the loc k.
Unlocking/locking the driver's door using
th e mechanical key
%
Ifyo u wish 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.
Opening and closing 65
Page 68 of 562

#Tounlock :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.
Tr unk
Opening the trunk lid
&
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 the
trunk lid is open when the engine is running,
especially if theve hicle is in motion.
#Alw ays switch off the engine before
opening the trunk lid.
#Ne ver drive with the trunk lid open.
* NO
TEDama getothe trunk lid byobs ta‐
cles ab ovetheve hicle
The trunk lid swings upwards when it is
opened.
#Therefore, make sure that there is suf fi‐
cient clearance ab ovethe trunk lid.
Yo u ha vethefo llowing options toopen the trunk
lid:
#Pull the trunk lid handle.
#Ve hicles with trunk lid co nvenience clos‐
ing: With th e trunk lid stopped in an inter‐
mediate position, pull the trunk lid upwards
and release as soon as it begins toopen.
#Press and hold thep button on the
SmartK ey.
#Pull trunk lid remo teoperating switch 1.
66
Opening and closing
Page 69 of 562

#Vehicles with HANDS-FREE ACCESS: move
yo ur foot below the bumper (→page 69).
Ve hicles with trunk lid co nvenience closing:
If an object restricts the trunk lid during the
automatic opening process, the obs tacle de tec‐
tion sy stem stops the trunk lid. The obs tacle
de tection function is only an aid and is not a
substitute foryo ur attentiveness.
Plug-in hybrid: obser vethe no tes in the Supple‐
ment. Otherwise, you may not recognize dan‐
ge rs.
Closing the trunk lid
&
WARNING Risk of injury from unsecured
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction.
#Alw aysstow objects 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.
&
WARNING Risk of becoming trapped
duri ng au tomatic closing of the trunk lid
Pa rts of the body could become trapped dur‐
ing automatic closing of the trunk lid. More‐
ove r,people, e.g. children, may be standing
in the closing area or may enter the closing
area during the closing process.
#Make sure that nobody is in the vicinity
of the closing area during the closing
process.
#Use one of thefo llowing options tostop
th e closing process:
RPress thep button on the
SmartK ey.
RPress or pull there mo teoperating
switch on the driver's door.
RPress the closing or locking button
on the trunk lid.
RPull the trunk lid handle.
Ve hicles with HANDS-FREE ACCESS: It is also
possible tostop the closing process bymoving
yo ur foot in a kicking motion under there ar
bumper.
Yo u ha vethefo llowing options toclose the trunk
lid:
#Pull the trunk lid down using the handle
re cess and push it closed.
% Ifyo u lightly pushthe trunk lid closed, the
po we r closing function au tomatical lypulls
th e trunk lid into the loc k.
#Vehicles with trunk lid co nvenience clos‐
ing: Pull down the trunk lid slightly and
re lease it as soon as it begins toclose.
#Ve hicles with trunk lid co nvenience clos‐
ing: Press and hold thep button on the
SmartK ey(with the SmartK eyinthe vicinity
of theve hicle).
Opening and closing 67
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#Vehicles with trunk lid co nvenience clos‐
ing: Press closing button 1inthe trunk lid.
#Ve hicles with trunk lid co nvenience clos‐
ing and KEYLESS-GO: Press locking button
2 inthe trunk lid.
If a SmartK eyis de tected outside theve hicle,
th e trunk lid closes and theve hicle is loc ked.
#Ve hicles with trunk lid co nvenience clos‐
ing: Press trunk lid remo teoperating switch
1.
#Ve hicles with HANDS-FREE ACCESS: move
yo ur foot in a kicking motion under the
bumper (
→page 69).
Au tomatic reve rsing function of the trunk lid
If an object restricts the trunk lid during the
automatic closing process, the trunk lid opens again automaticall
y.The automatic reve rsing
function is only an aid and is not a substitute for
yo ur attentiveness.
#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. fingers.
Rove rth e 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, use one of the
fo llowing options:
RPress thep button on the
SmartK ey.
RPress there mo teoperating switch
on the driver's door.
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Opening and closing
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RPressthe closing or locking button
on the trunk lid.
RPull the trunk lid handle.
HANDS-FREE ACCESS function
With HANDS-FREE ACCESS you can open, close
or inter rupt trunk lid mo vement byper 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 66)
and closing (→page 67)th e trunk lid.
% Awa rning tone sounds while the trunk lid 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
TEDama getotheve hicle caused by
unin tentional lyopening the trunk lid
RWhen using an automatic car wash
RWhen using a high pressure cleaner
#Deactivate KEYLESS-GO or make sure
that the SmartK eylocated is at least
10 ft(3 m) away from theve hicle in
such situations.
When making the kicking mo vement, make sure
th at your feet are firm ly on the ground, other‐
wise you could 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.
Opening and closing 69
Page 72 of 562

RThe kicking movement must be towa rdsth e
ve hicle and bac k.
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:
RSnow or dirt, e.g. from road salt, co vers the
sensor area.
RThe kicking mo vement is made using a pros‐
th etic leg. The trunk lid could be opened or closed unin
ten‐
tional ly, in thefo llowing situations:
RIf a person's arms or legs are moving in the
sensor de tection range, e.g. when polishing
th eve hicle, sitting on the edge of the trunk,
or picking up objects.
RIf objects are mo ved or placed behind the
ve 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 59) or do not
car rythe SmartK eyabout your person insuch
situations.
Switch ing separate trunk locking on/off
Ifyo u centrally unlo cktheve hicle while separate
locking is activated, the trunk remains loc ked.
#To switch on: slidethe switch toposition
2.
#To switch off: slidethe switch toposition
1.
% If an accident has been de tected, the trunk
unloc kseve n if separate lo cking is switched
on.
70 Opening and closing