pull emer
gency key2 comp lete ly out of the
key. #
Toinser t:push emer gency key2 fully into
th eke y until it en gage s.
Re lease cat ch1 must then be back in the
basic position. Re
placing the key battery &
DANG ER Serious damage tohealth
caused byswallowing batteries
Batteries contain toxic and cor rosive sub‐
st ances. Swallowing bat teries may cause
serious damage tohealth.
There is a risk of fata l injur y. #
Keep batteries out of there ach of chil‐
dren. #
If batteries are swallo wed, seek medical
attention immediately. +
ENVIRONMEN
TALNO TEEnvironmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
in pollutants. It is
illegal todispose of them with the household
ru bbish. #
Dispose of batteries of in an
environmen tally responsible manner.
Ta ke dischar ged batteries toaqu alified
specialist workshop or toa collection
point for used batteries. Re
quirements:
R Yourequ ire a CR2025 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a qualified specialist work‐
shop. #
Remo vethe emer gency key ( / page 55). #
Press eme rgency key2 into the opening in
th eke y in the direction of the ar row until bat‐
te ry compa rtment co ver1 opens. When
doing so, do not hold battery compartment
co ver1 shut. #
Remo vebattery compartment co ver1. #
Repeatedly taptheke y again styour palm
until bat tery 3 falls out of thekey. #
Insert the new battery with the positive pole
fa cing up wards. Use a lint-free clo thtodo so. #
Make sure that the sur face of the battery is
free of lint, grease and other impurities. 56
Opening and closing
#
Insert the front tabs of battery compartment
co ver1 into the housing and then press to
close it. #
Insert emergency key2 into thekey. Problems with
thekey Yo
u can no lon ger lo ckor unlock theve hicle
Po ssible causes:
R The key bat tery iswe ak or dischar ged.
R The key is faulty. #
Check the battery using the indicator lamp
and replace if necessary (/ page 56).#
Use the emer gency keyto lock or unlock
(/ page 55). #
Have theke ych ecked at a qualified specialist
wo rkshop.
There is inter fere nce from a po werful radio
signal source
The key function is impaired by,fo rex ample:
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 gatesystems or auto‐
matic bar riers #
Make sure that there is a suf ficient dist ance
between theke y and the po tential sou rce of
inter fere nce.
Yo u ha velost a key #
Have theke y deactiva ted at a qualified spe‐
cialist workshop. #
If necessar y,ha ve the mechanical lock
re placed 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 injury topersons
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. #
Never lea vepersons, in particular chil‐
dren, unat tended in theve hicle. #
Ifth ere are persons in theve hicle, do
not activate the additional door loc k. The additional door lock is automatically activa‐
te
d 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 activa‐
te d.
If th e additional door lock is activated, the doors
cann otbe opened from the inside.
% After locking you can issue a signal with the
horn. Opening and closing
57
#
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 2until the closing process has
been comple ted.
% Further information on con venience closing
(/ page 65). If
yo u open theta ilgate from outside, it is auto‐
matically unloc ked. Problems with KEYLESS-GO
Yo
u can no lon ger lo ckor unlock theve hicle
using KEYLESS-GO.
Po ssible causes:
R The key functions ha vebeen deactivated
(/ page 55).
R The key bat tery iswe ak or dischar ged.
R The key is faulty. #
Activate theke y functions (/ page 55). #
Check the battery using the indicator lamp
and replace if necessary (/ page 56). #
Use the emer gency keyto unlo ckor lock the
ve hicle (/ page 55). #
Have theve hicle and keych ecked at a quali‐
fi ed specialist workshop. There is inter
fere nce from a po werful radio
signal source.
The KEYLESS-GO function is impaired by,for
ex ample:
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 auto‐
matic bar riers #
Make sure that there is a suf ficient dist ance
between theke y and the po tential sou rce of
inter fere nce. Ac
tivating/deactivating the automatic lo ck‐
ing feature The
vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace. Opening and closing
59
#
When the con venience closing feature
is operating, monitor the entire closing
process and make sure that no body
parts are in the closing area. #
Press and hold theß button on thekey.
The following functions are per form ed:
R The vehicle is loc ked.
R The side windo wsare closed. #
Tointer rupt convenience closing: release
th eß button.
% Con venience closing can also be operated
wi th KEYLESS-GO (/ page 58).Problems with
the side windo ws &
WARNING Risk of becoming trapped or
fa tal ly inju red if reve rsing pr otection is
not activated
If yo u close a side wind owagain immediately
af te r it has been bloc ked, the side window
will close with increased or maximum forc e. The
reve rsing function is then not active and
body parts may become trapped. #
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 to
re open the side windo w. A side wind
owcann otbe closed and you can‐
not see the cause. #
Check tosee whe ther any objects are in the
window guide. #
Adjust the side windo ws.
Ad justing the side windo ws
If a side window is obstructed during closing and
re opens again immediately: #
Immediately af terth is, pull the cor respond‐
ing button again until the side window has
closed and hold the button for at least one
more second (re-adjustment).
The side window will be closed without the
automatic reve rsing function. If
th e side window is obstructed again and
re opens again immediately: #
Immediately af terth is, pull the cor respond‐
ing button again until the side window has
closed and hold the button for at least one
more second (follo w-up adjustment).
The side wind owwill be closed without the
automatic reve rsing function.
The side windo wscann otbe opened or
closed using the con venience opening fea‐
ture.
R The key bat tery iswe ak or dischar ged. #
Check the battery using the indicator lamp
and replace if necessary (/ page 56).66
Opening and closing
Driving
Swit
ching on the po wer supp lyor the igni‐
tion (without engine start) &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unsupervised in theve hi‐
cle, they could, in part icular:
R open doors, thereby endangering other
persons or road users.
R get out and be stru ck byoncoming traf‐
fi c.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R releasing the parking brake.
R change the transmission position.
R start theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theke y out of reach of children. Also obser
vethe "No tes on pets in theve hicle".
Re quirements:
R theke y is located in theve hicle and thekey
battery is not dischar ged.
R the brake pedal is not depressed. #
Toswitch on the po wer supp ly:press but‐
to n1 once.
Yo u can activate the windscreen wiper, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
R you open the driver's door.
R you press but ton1 twice more. 100
Driving and pa rking
#
Toswitch on the ignition: press button 1
twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
R you do not start theve hicle within
15 minutes and the transmission is in posi‐
tion jorthe electric parking brake is
applied.
R you press but ton1 once.
% You can also swit chon the po wer supp lyor
th e ignition with theke y in the ignition lock
(/ page 102). St
arting theve hicle St
arting theve hicle with thest art/s top but‐
ton &
DANG ER Risk of death caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vethe engine or, if present,
th e auxiliary heating running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk offire due toflammable
material in the engine compartment or
th eex haust sy stem
Flammable materials may ignite. #
Therefore, check regularly that there
are no flammable materials in the
engine compartment or on theex haust
sy stem. Re
quirements:
R theke y is located in theve hicle and thekey
battery is not dischar ged. #
Shift the transmission toposition jori. #
Depress the brake pedal and press button
1 once. #
Ifth eve hicle does not star t:switch off non-
essential consumers and press button 1
once. #
Ifth eve hicle still does not start and theKey
not detected display message also appears
in the multifunction display: start theve hicle
with theke y (/ page102).
% You can swit choff the engine while driving
by pressing button 1for about thre e sec‐
onds or bypressing button 1thre e times
within thre e seconds. Be sure toobser vethe
saf ety no tes under "Driving tips"
(/ page 103). Driving and parking
101
Key
Display messages
Possible causes/consequences and M MSolutions
 Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
 Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page 56).
 Key not detected (white dis‐
play message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, start theve hicle with theke y ( / page 102). 346
Displaymessa ges and warning/indicator lamps
Au
tomatic front passen ger front air‐
bag shu toff ........................................... 40, 41
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 40
PA SSENGER AIR BAG indicator lamp .... .41
Au tomatic mir rorfo lding function
Ac tivating/deactivating ......................... 96
Au tomatic transmission
Double-clutch function ......................... 11 6
Drive program display .......................... 11 3
Drive programs .................................... 11 2
DY NA MIC SELECT switch ..................... 11 2
E-SELECT selector le ver ....................... 11 4
Engaging drive position ........................ 11 6
Engaging neutral .................................. 11 5
Engaging pa rkposition .........................1 16
Engaging reve rsege ar .......................... 11 5
Kickdown ............................................. 11 8
Manual gear changing .......................... 11 7
St eering wheel gearshift paddles .........1 17
Tr ansmission position display .............. 11 4
Tr ansmission positions .........................1 14
Axle load Perm issible .......................................... 332 B
BA S (Brake Assist Sy stem) .................... .128
Battery Key ........................................................ 56
Battery see Bat tery (vehicle)
Bat tery (vehicle) ...................................... 308
Charging .............................................. 307
No tes .................................................. 304
No tes (s tarting assis tance and
ch arging) ............................................ .305
Re placing ............................................ 308
St arting assis tance .............................. 307
Belt see Seat belt
Blind Spot Assi st..................................... 15 2
Ac tivating/deactivating ...................... .153
Fu nction .............................................. 15 2
Sy stem limitations ...............................1 52
Blue tooth ®
............................................... 185
Information .......................................... 184
Setting up an Internet connection ....... 252
Switching on/off ................................. 185Switching profile (DUN/PAN) .............. 254
Blue tooth ®
audio
Ac tivating ............................................ 269
De-authorising (de-regis tering) the
device .................................................. 270
Information .......................................... 267
Overview ............................................. 268
Sear ching for a track ........................... 270
Sea rching for and auth orisingthe
device .................................................. 268
Selecting a media pla yer .....................2 69
Boot lid see Tailgate
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid
No tes ................................................... 337
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 131
Brake sy stem
ABS ...................................................... 11 0
Brake callipers ...................................... 111
Brake cooling ....................................... 111 Index
399