
Key
Overview of
key functions &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R Open doo rs,th ereby 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 Changing the transmission position.
R Starting 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 theve hicle key out of reach of
ch ildren. This also applies
tothe Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
* NO
TEDama getotheke y caused by
magnetic fields #
Keep theke yaw ay from strong mag‐
netic fields. 1
Locks
2 Battery check lamp
3 Unloc ks
4 Opens/closes theta ilgate
% The key may vary from the one shown in the
diagram, depending on theve hicle equip‐
ment.
The key loc ksand unlo cksth efo llowing compo‐
nents:
R the doors
R theta ilgate
R the fuel filler flap 78
Opening and closing

If
th eve hicle is not opened within appr oximately
40 seconds af ter unlocking, it loc ksagain. Anti-
th eft pr otection is primed again.
Do not keep theke yto ge ther with electronic
devices or me tal objects. This can af fect the
ke y's functionalit y.
Do not keep theke y in thete mp erature-contro l‐
led cup holder. Otherwise, theke y will not be
re liably de tected.
% If battery check lamp 2does not light up
af te r pressing theÜ orß button, the
battery is dischar ged.
Re placing theke y bat tery ( / page 80). Ac
tivating/deactivating the acoustic lo cking
ve rification signal Multimedia sy
stem:
4 © 5
Settings 5
Vehicle #
Activate or deacti vate Acoustic lock .
% Please no
te:
The selected setting forth e acoustic locking
ve rification signal must comply wi th there le‐ va
nt national road and traf fic re gulations. In
some countri es, including German y,using
th e acoustic locking verification signal is for‐
bidden bytraf fic la ws(in accordance with
§16 Para. 1 and §30 Para. 1 of the German
national road traf fic re gulations). The driver
of theve hicle must comply with these regu‐
lations. In countri es wherethe use of this
function is forbidden, this function is not
activated in theve hicle and must not be acti‐
va ted. Changing
the unlocking settings Po
ssible unlocking functions of theke y:
R cent ral unlocking
R unlocking the driver's door and fuel filler flap #
Toswitch between settings: pressthe
Ü andß buttons simultaneously for
appr oximately six seconds until the battery
ch eck lamp flashes twice. Options if
the unlocking function forth e driver's
door and fuel filler flap has been selec ted:
R pressing theÜ 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. Deactivating
theke y functions If
yo u do not use theve hicle or a keyfo r an
ex tended pe riod of time, you can reduce the
energy consum ption of there spective key.Todo
so, deactivate theke y functions. #
Todeactivate: presstheß button on the
ke y twice in quick succession.
The battery check lamp of theke yflashes
twice brief lyand lights up once. #
Toactivate: press any button on thekey.
% When theve hicle is star ted with theke y in
th estow age compartment of the cent recon‐
sole, theke y functions are automatical ly
activated (/ page182). Opening and
closing79

Re
moving/inserting the eme rgency key #
Toremo ve:press release knob 1.
Emer gency key2 is pushed out slight ly.#
Pull out emer gency key2 until it en gage s in
th e intermediate position. #
Press release knob 1again and fully
re mo veemer gency key2. #
Toinser t:press release knob 1. #
Insert emer gency key2 tothe intermediate
position or fully until it engages.
% You can use the intermediate position of
emer gency key2 toattach theke yto akey
ri ng. 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 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 CR 2032 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 80). 80
Opening and closing

Problems with
thekey Problem
Possible causes/consequences and M
MSolutions
Yo u can no lon ger lock or unlock the
ve hicle. Po
ssible causes:
R The key bat tery iswe ak or dischar ged.
R There is inter fere nce from a po werful radio signal source.
R The key is faulty. #
Check the battery using the battery check lamp and replace if necessary (/ page 80). #
Use the emer gency keyto lock or unlock (/ page 80). #
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 mechanical lock changed 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. 82
Opening and closing

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 The key functions ha vebeen deactivated (/ page 79).
R The key bat tery iswe ak or dischar ged.
R There is inter fere nce from a po werful radio signal source.
R The key is faulty. #
Activate theke y functions (/ page 79). #
Check the battery using the battery check lamp and replace if necessary (/ page 80). #
Use the emer gency keyto unlo ckor lock theve hicle (/ page 80). #
Have theve hicle and keych ecked at a qualified specialist workshop. 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. 86
Opening and closing

Problem
Possible causes/consequences and M
MSolutions
Ad justing the side windo ws
If a side window is obstructed during closing and reopens again immediately: #
Immediately af terth is, pull the cor responding button again until the side window has closed, and hold
th e button for at least one more second (re-adjustment).
The side window is closed without the automatic reve rsing function.
If th e side window is obstructed again and reopens again immediately: #
Immediately af terth is, pull the cor responding button again until the side window has closed, and hold
th e button for at least one more second (follo w-up adjustment).
The side wind owis closed without the automatic reve rsing function.
The side windo wscannot be opened or
closed using the con venience opening
fe ature. The
key bat tery iswe ak or dischar ged. #
Check the battery using the battery check lamp and replace if necessary (/ page 80).Sliding sunroof
Opening and closing
the sliding sunroof %
The term "sliding sun roof" also refers to the
panorama sliding sunroof. &
WARNING Risk of becoming trapped
while opening and closing the sliding
sunroof
During opening and closing, parts of the
body could getcaught in the sweep of the
sliding sunroof. #
When opening or closing, make sure
that no body parts are in the sweep. #
Release the button immediately if
somebody becomes trapped.
or Opening and closing
97

Driving
Note
s on Mercedes-AMG vehicles Obser
vethe no tes on thefo llowing topics in the
Supplement, as you may otherwise failto recog‐
nise dangers:
R AMG RIDE CONTROL
R (DYNAMIC SELECT switch) drive programs
R Functions of ESP ® Switching the po
wer supp lyor ignition on
without starting the engine &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R Open doo rs,th ereby 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 Changing the transmission position.
R Starting 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 theve hicle key out of reach of
ch ildren. Also obser
vethe "No tes on pets in theve hicle".
This also applies tothe Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
Re quirements:
R theke y is located in theve hicle and thekey
battery is not dischar ged. R
or: a Digital Vehicle Key is located in the
mar ked space (/ page181).
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. Driving and parking
17 9

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. #
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.
R the transmission is in position jorthe
electric parking brake has been applied.
R you press but ton1 once. St
arting theve hicle St
arting theve hicle with thest art/s top but‐
ton &
DANG ER Risk death caused by exhaust
ga ses
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 caused byflam‐
mable material on theex haust sy stem
Flammable materials brought in byeither ani‐
mals or environmen tal influences may ignite
if th ey come into contact wi thhot parts of
th e engine or exhaust sy stem. #
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.
R or: a Digital Vehicle Key is located in the
mar ked space (/ page181). #
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.
If th eve hicle still does not start, one of thefo l‐
lowing display messages appears in the multi‐
function display: #
Place the key in the marked space See Own-
er's Manual :st art theve hicle in emer gency
operation mode (/ page 182).
or 18 0
Driving and pa rking