Page 65 of 541

Problem
Possible causes/consequences and M
MSolutions #
Check the battery using the battery check lamp and replace if necessary . #
Use the emer gency keyto lock or unlock theve hicle . #
Have theke ych ecked at a qualified specialist workshop.
Yo u ha velost a key. #
Have theke y deacti vated at a qualified specialist workshop. #
If necessar y,ha ve the loc kschanged as well. Doors
Note
s onthe additional door lock The additional door lock is only
available for
ve hicles forth eUni ted Kingdom. &
WARNING Risk of inju ryto persons
inside theve 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.
If th ere are persons in theve hicle, they can
no longer le aveth eve hicle, e.g. in hazardous
situations. #
Never lea vepersons unattended in the
ve hicle, particularly children, elderly
persons or persons in need of help. #
Ifth ere are persons in theve hicle, do
not activate the additional door loc k. The additional door lock is automatically activa‐
te d:
R After locking theve hicle with thekey.
R After locking theve hicle using KEYLESS-GO.
% After locking theve hicle, the horn can be
operated for a short time. %
After locking theve hicle, pressing the button
to centrally unlock theve hicle from inside
will trigger an alarm (→ page 63).
If th e additional door lock is activated, the doors
cann otbe opened from the inside.
Yo u can deactivate the additional door lock by
deactivating the interior pr otection (→ page84). Un
locking and opening the doors from the
inside Un
ited Kingdom onl y:obser vethe no tes on the
additional door lock (→ page 62).62
Opening and closing
Page 70 of 541

Un
locking/locking the driver's door using
th e emer gency key element %
Ifyo u wish tolock theve hicle entirely using
th e emer gency 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 emer gency key element. #
Insert the emer gency key in toopening 1in
th e co ver. #
Pull and hold the door handle. #
Pull the co ver on the emer gency key as
st ra ight as possible away from theve hicle
until it releases. #
Release the door handle. #
Tounlo ck:turn the emer gency key anti-
clo ckwise toposition 1. #
Tolock: turnthe emer gency key clo ckwise to
position 1. #
Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly. Boot
Opening the bo
otlid &
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
boot lid is open when the engine is running,
especially if theve hicle is in motion. #
Alw ays switch off the engine before
opening the boot lid. #
Never drive with the boot lid open. Opening and closing
67
Page 71 of 541

*
NO
TEDama getothe boot lid byobs ta‐
cles ab ovetheve hicle The boot lid swings upwards when it is
opened. #
Therefore, make sure that there is suf fi‐
cient clearance ab ovethe boot lid. Yo
u ha vethefo llowing options toopen the boot
lid: #
With th e boot lid unloc ked, press theto p of
th est ar. #
Vehicles with boot lid conve nience clos‐
ing feature: withthe boot lid stopped in an
intermediate position, pull it upwards and
re lease as soon as it begins toopen.
% Toopen the boot lid, pull on thefo lded-out
st ar when there ve rsing camera is activated. #
Press and hold thep button on thekey. #
Pull boot lid remo teoperating switch 1. #
Vehicles with HANDS-FREE ACCESS: move
yo ur foot below the bumper (→ page 70).
Ve hicles with boot lid conve nience closing:if
an object restricts the boot lid during the auto‐
matic opening process, the obs tacle de tection
st ops the boot lid. The obs tacle de tection func‐
tion is only an aid and is not a substitu teforyo ur
attentiveness. Closing
the boot lid &
WARNING Risk of inju ryfrom unsecu red
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
du ring au tomatic closing of the boot lid
Pa rts of the body could become trapped dur‐
ing automatic closing of the boot lid. More‐
ove r,people, e.g. children, may be standing 68
Opening and closing
Page 73 of 541

#
Vehicles with HANDS-FREE ACCESS: move
yo ur foot below the bumper (→ page 70).
Au tomatic reve rsing function of the boot lid
If an object restricts the boot lid during the auto‐
matic closing process, the boot lid opens again
automaticall y.The automatic reve rsing function
is only an aid and is not a substitute foryo ur
attentiveness. #
When closing, make sure that no body parts
are in the closing area. &
WARNING Risk of becoming trapped
despi tereve rsing function
The reve rsing function does not react:
R tosoft, light and thin objects, e.g. fingers.
R overth e last 8 mm of the closing path.
In these situations in particular, there ve rsing
function cannot pr event someone being trap‐
ped. #
When closing, ma kesure that no body
parts are in the closing area. #
If someone is trapped, use one of the
fo llowing options:
R Press thep button on thekey.
R Press there mo teoperating switch
on the driver's door.
R Press the closing or locking button
on the boot lid.
R Press theto p of thest ar on the boot
lid. HANDS-FREE
ACCESS function Wi
th HANDS-FREE ACCESS you can open, close
or stop the closing process of the boot lid by
per form ing a kicking mo vement under there ar
bumper.
The kicking mo vement triggers the opening or
closing process alternately. 70
Opening and closing
Page 74 of 541

Obser
vethe no tes when opening (→ page67 )
and closing (→ page 68)the boot lid.
% Awa rning tone sounds while the boot lid is
opening or closing. &
WARNING Risk of bu rns caused bya hot
ex haust sy stem
The vehicle exhaust sy stem can become very
hot. If you use HANDS-FREE ACCESS, you
could bu rnyourself by touching theex haust
sy stem. #
Alw ays ensure that you on ly ma ke a
kicking mo vement within the de tection
ra nge of the sensors. *
NO
TEDama getotheve hicle caused by
unin tentional lyopening the boot lid: R
when using an automatic car wash
R when using a high pressure cleaner #
Deactivate KEYLESS-GO or make sure
th at theke y located is at least 3 m aw
ay from theve hicle in such situa‐
tions. 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:
R The key is behind theve hicle.
R Stand at least 30 cm away from theve hicle
while per form ing the kicking mo vement.
R Do not come into contact with the bumper
while making the kicking mo vement.
R Do not car ryout the kicking mo vement too
slowl y.
R The kicking mo vement must be towa rdsthe
ve hicle and bac k. 1
Sensor de tection 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:
R The area around the sensor is dirty, e.g. road
salt or sn ow.
R The kicking mo vement is made using a pros‐
th etic leg. Opening and closing
71
Page 75 of 541

The boot lid could
thus be opened or closed
unin tentional ly, in thefo llowing situations:
R If persons' arms or legs mo veinthe sensor
de tection range, e.g. when polishing theve hi‐
cle, sitting on the edge of the boot, or picking
up objects.
R If objects are guided behind or placed behind
th eve hicle, e.g. charging cables, tensioning
st ra ps or luggage.
R When working on the trailer coupling, trailers
or rear bicycle rack s.
Deactivate KEYLESS-GO (→ page 59) or do not
car rytheke y about your person in such situa‐
tions. Swit
ching separate boot locking on/off If
yo u centrally unlo cktheve hicle while separate
locking is activated, the boot remains loc ked. #
Toswitch on: slidethe switch toposition
1. #
Toswitch off: slidethe switch toposition
2.
% If an accident has been de tected, the boot
unloc kseve n if separate lo cking is switched
on. Ac
tivating/deactivating the bo otlid opening
limiter Multimedia sy
stem:
, Vehicle .
î Vehicle set-
tings .
Boot lid open. limiter
Ac tivating the function allo wsyouto av oid
bumping the boot lid on a low garage ceiling, for
ex ample. #
Activate Oor deacti vate ª the function. Ro
ller sunblinds Extending/r
etra cting there ar window roller
sunblind &
WARNING Risk of entrapment when
ex tending or retracting thero ller sun‐
blind
Body parts could become ent rapped in the
sweep of thero ller sunblind when it is being
ex tended or retracted. 72
Opening and closing
Page 76 of 541

#
Make sure that no body parts are in the
sweep of thero ller sunblind when it is
being extended or retracted. #
If someone becomes trapped, brie fly
press the button again.
The opening or closing process is
brief lystopped. The roller sun blind
th en returns toits starting position. *
NO
TEDama gecaused byobjects #
Make sure that thero ller sunblind can
mo vefreely. #
Toextend or retract: press button 1. Side windo
ws Opening/closing
the side windo ws &
WARNING Risk of becoming trapped
when opening a side window
When you open a side wind ow, parts of the
body could be dr awn in or become trapped
between the side window and window frame. #
When opening, make sure that nobody
is touching the side windo w. #
If someone is trapped, release the but‐
to n immedia tely or pull it in order to
close the side window again. &
WARNING Risk of becoming trapped
when closing a side window
When closing a side windo w,body parts
could be trapped in the closing area in the
process. #
When closing, make sure that no body
parts are in the closing area. Opening and closing
73
Page 77 of 541

#
If someone is trapped, release the but‐
to n immedia tely or press the button in
order toreopen the side windo w. &
WARNING Risk of becoming trapped
when children opera tethe side windo ws
Children could become trapped if they oper‐
ate the side windo ws, particularly when unat‐
te nded. #
Activate theove rride feature forthe
re ar side wind ows. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Never lea vechildren unat tended in the
ve hicle. 1
Toclose
2 Toopen
The buttons in the driver's door take prece‐
dence. #
Tostart automatic operation: press/pull
th eW button be yond the pressure point. #
Tointer rupt automatic operation: press/
pull theW button again. Au
tomatic reve rsing function for the side
windo ws
If an object bloc ksa side wind owduring the
closing process, the side window opens again
automaticall y.The automatic reve rsing function
is only an aid and is not a substitute foryo ur
attentiveness. #
When closing, make sure that no body parts
are in the closing area. &
WARNING Risk of becoming trapped
despi tethere being reve rsing pr otection
on the side window
The reve rsing function does not react:
R tosoft, light and thin objects, e.g. small
fi ngers
R overth e last 4 mm of the closing path
R during resetting
R when closing the side window again man‐
ually immediately af ter auto matic reve rs‐
ing 74
Opening and closing