Page 62 of 541

R
Anti-theft pr otection is reactivated.
Do not keep theke yto get her with electronic
devices or me tal objects. This can af fect the
ke y's functionalit y.
% If battery check lamp 2does not light up
af te r pressing the% or& button, the
battery is dischar ged. Ac
tivating/deactivating the acoustic lo cking
ve rification signal Multimedia sy
stem:
, Vehicle .
î Vehicle set-
tings .
Acoustic lock #
Activate Oor deacti vate ª the function. Priming/deactivating
the panic ala rm Re
quirement:
R Ignition switched off. #
Toprime: press button 1for appro ximately
one second.
A visu al and audible alarm is triggered. #
Todeactivate: briefly press but ton1 again.
or #
Press thest art/ stop button on the cockpit
(the key is inside theve hicle). Changing
the unlocking settings Po
ssible unlocking functions of theke y:
R Central unlocking
R Unlocking the driver's door and fuel filler flap #
Toswitch between settings: pressthe
% and& buttons simultaneously for
appr oximately six seconds until the battery
ch eck lamp flashes twice.
If th e unlocking function forth e driver's door
and fuel filler flap has been selec ted:
R Pressing the% button a second time cen‐
trally unloc kstheve hicle.
R Vehicles with KEYLESS-GO: Ifyo uto uch
th e inner sur face of the door handle on the
driver's door, only the driver's door and fuel
fi ller flap are unlo cked. Re
ducing the energy consu mption of the key If
yo u do not intend touse theve hicle for an
ex tended pe riod of time, you can deactivate the
fo llowing functions on thekey.
R KEYLESS-GO starting function
R KEYLESS-GO Opening and closing
59
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 68 of 541
#
Tounlo cktheve hicle: touch the inner sur‐
fa ce of the door handle. #
Tolock theve hicle: touch sensor sur face
1 or2. #
Convenience closing: touch recessed sen‐
sor su rface 2for an extended pe riod.
% For fur ther information on con venience clos‐
ing (→ page 75).
If yo u open the boot lid from outside, the boot lid
is automatically unloc ked. Problems with KEYLESS-GO
Problem
Possible causes/consequences and M
MSolutions
Yo u can no lon ger lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes:
R KEYLESS-GO has been deactivated .
R The key bat tery is dischar ged or near lydischar ged.
R There is inter fere nce from a po werful radio signal source. Opening and closing
65
Page 69 of 541
Problem
Possible causes/consequences and M
MSolutions
R The key is faulty. #
Activate KEYLESS-GO . #
Check the battery using the battery check lamp and replace if necessary . #
Use the emer gency keyto lock or unlock theve hicle . #
Have theve hicle and keych ecked 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. #
Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds. #
Toactivate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds.
Danger of being loc ked out when the function is
activated:
R Ifth eve hicle is being tow star ted/pushed.
R On a roller dynamome ter. 66
Opening and closing
Page 72 of 541

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:
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 boot lid.
R Press theto p of thest ar on the boot
lid. 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 boot
lid: #
Pull the boot lid down using the handle
re cess and push it closed. #
Vehicles with boot lid conve nience clos‐
ing: press and hold thep button on the
ke y (with theke y in the vicinity of theve hi‐
cle). #
Vehicles with boot lid conve nience clos‐
ing: press closing button 1inthe boot lid. #
Vehicles with boot lid conve nience clos‐
ing and KEYLESS-GO: press locking button
2 inthe boot lid.
If a key is de tected outside theve hicle, the
boot lid closes and theve hicle is loc ked. #
Vehicles with boot lid conve nience clos‐
ing: press boot lid remo teoperating switch
1. Opening and closing
69
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 79 of 541

%
Con venience closing can also be operated
wi th KEYLESS-GO (→ page64). Problems with
the side windo ws Problem
Possible causes/consequences and M
M Solutions
A side window cann otbe closed and
yo u cannot see the cause. #
Check tosee if any objects are in the window guide.
& WARNING Risk of becoming trapped or fata lly injured if reve rsing pr otection is not activated
If yo u close a side wind owagain immediately af ter it has been bloc ked or reset, the side window closes
with increased or maximum forc e. The reve rsing feature is then not active.
Pa rts of the body could become trapped in the closing area in the process. #
Make sure that no parts of the body are in the closing area. #
Tostop the closing process, release the button or press the button again toreopen the side win‐
do w. If a side window is obstructed during closing and
reopens again slightly: #
Immediately af terth e window is obstructed, pull the cor responding button again until the side window
has closed, and hold the button for an additional second.
The side window is closed with increased forc e.
If a side window is obstructed again during closing and reopens again slightly: 76
Opening and closing