2018 MERCEDES-BENZ S-CLASS SEDAN alarm

SmartKey
Overview of SmartK eyfunctions
&
WARNING Risk of accident and injury
due tochildren left unatte nded inthe
ve hicle
If ch ildren are left unatte nded intheve hicle,
th ey could:
ROpen doo rs,th ereby endangering other
persons or road users
RGet out of theve hicle and be hit by
oncoming traf fic
ROperate vehicle equipment
In addition, thech ildren could also set the
ve hicle in motion, forex ample, by:
RRe leasing the parking brake
RShifting the transmission out of park
position j
RStarting the engine.
#Ne ver lea vechildren and animals unat‐
te nded in theve hicle.
#When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle.
#Ke ep the SmartK eyout of there ach of
ch ildren.
* NO
TEDama getotheke ycaused by
magnetic fields
#Ke ep theke yaw ay from strong mag‐
netic fields.
1Loc ks
2Battery check lamp
3Unloc ks
4Opens/closes the trunk lid
5Pa nic alarm
The Smart Keyloc ksand unlo cksth efo llowing
components:
RDoo rs
RTrunk lid
RFu elfiller flap
If yo u do not open theve hicle within appr ox‐
imately 40 seconds af ter unlocking:
RThe vehicle is loc ked again.
RAnti- theft pr otection is reactivated.
Do not keep the SmartK eytoget her with elec‐
tronic devices or me tal objects. This can af fect
th e SmartK ey's functionality.
Do not keep the SmartK eyinthete mp erature-
controlled cup holder. Otherwise, the SmartK ey
will not be reliably de tected.
% If battery check lamp 2does not light up
af te r pressing the% or& button, the
battery is dischar ged.
58
Opening and closing

Activating/deactivating the acoustic lo cking
ve rification signal
Multimedia sy stem:
,9HKLFOH.î 9HKLFOH 6HW
WLQJV.$FRXVWLF /RFN
#Ac tivate Oor deacti vate ª the function.
Arming/deactivating the panic ala rm
Requirements:RThe ignition is switched off.
#To arm: press button 1for app roxima tely
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 SmartK eyis inside theve hicle).
Changing the unlocking settings
Po ssible unlocking functions of the SmartK ey:
RCentral unlo cking
RUn locking the driver's door and fuel filler flap
#To switch 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 selecte d:
RPressingthe% button a second time cen‐
trally unloc kstheve hicle.
RVe hicles 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
SmartK ey
Allvehicles: ifyo u do not use theve hicle or a
SmartK eyfor an extended pe riod of time, you
can reduce the energy consum ption of the
re spective SmartK ey.To do so, deactivate the
SmartK eyfunctions.
#To deactivate: pressthe& button on the
SmartK eytwice in rapid succession.
The battery check lamp of the SmartK ey
fl ashes twice brief lyand lights up once.
#To activate: press any button on the Smart‐
Ke y.
% When theve hicle is star ted with the Smart‐
Ke yin thestow age compartment of the cen‐
te r console, the SmartK eyfunctions are
au tomatical lyactivated (
→page 167).
Ve hicles with KEYLESS-GO: Automatic deacti‐
va tion of the SmartK eyfunctions occurs af ter a
fe w minutes if the SmartK eyis not mo vedth us
Opening and closing 59

Unlocking the trunk with the emer gency
re lease from inside
Re quirements:Rthe12 Vve hicle battery is connected and
ch arge d.
#Press emer gency release button 1brief ly.
The trunk lid unloc ksand opens.
Un locking the trunk lid using the mechanical
ke y
#Take the mechanical keyout of the SmartK ey
(→page 60).
#Insert the mechanical keyin to the trunk lock
as far as it will go.
#Tu rn the mechanical keycounter-clockwise
from position 1toposition 2.
#Turn the mechanical keybac kto position 1
and remo veit.
% Ifyo u use the mechanical keyto unlo ckand
open the trunk lid, the anti- theft alarm sys‐
te m will be triggered.
Ac tivating/deactivating the trunk lid opening
height restriction
Multimedia sy stem:
,9HKLFOH.î 9HKLFOH 6HW
WLQJV.7UXQN /LG 5HVWULFWLRQ
Ac tivating the function allo wsyouto av oid
bumping the trunk lid on a low garage ceiling, for
ex ample.
#Ac tivate Oor deacti vate ª the function.
Opening and closing 71

Anti-theft protection
Fu nction of the immobilizer
The immobilizer pr events your vehicle from being
st ar ted without the cor rect SmartK ey.
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on.
When leaving theve hicle, alw aysta ke the Smart‐
Ke ywit hyo u and lock theve hicle. An yone can
st art the engine if a valid SmartK eyhas been left
inside theve hicle.
% Ifth eeve ntthat the engine cannot bestar‐
te d (y ettheve hicle's battery is charge d), the
sy stem is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FO R-MERCedes (in the USA) or
1-800-387-0 100 (in Canada).
ATA (anti-theft alarm system)
Fu nction of theATA system (anti-theft ala rm
sy stem)
If th eATA system is armed, a visual and audible
alarm is triggered in thefo llowing situations:
RA door is opened.
RThe trunk lid is opened.
RThe hood is opened.
The ATA sy stem is armed automatically af ter
appr oximately 10seconds:
RAfter locking theve hicle with the SmartK ey.
RAf ter locking theve hicle using KEYLESS-GO.
When theATA system is armed, indicator lamp
1 flashes.
The ATA sy stem is automatically deactivated:
RAf ter unlocking theve hicle with the Smart‐
Ke y.
RAfter pressing thest art/ stop button with the
SmartK eyinside theve hicle.
86
Opening and closing

RAfter unlocking theve hicle using KEYLESS-
GO.
% When the mbrace service (
→page 329) is
active and the alarm stay s on for more than
30 seconds, a message is automatically sent
to the Cus tomer Assis tance Center.
Deacti vating the ATA(anti-theft alarm sys‐
te m) ala rm
#Pressthe%, &orp button on the
SmartK ey.
or
#Press thest art/ stop button (the SmartK eyis
inside theve hicle).
St opping the ala rmusing KEYLESS-GO
#Grasp the outside door handle (with the
SmartK eyoutside theve hicle).
Opening and closing 87

Beforestarting, make sure:
RThe legal stipulations in the area where your
ve hicle is par ked permit engine starting via
smartphone.
RIt is safe tostart and runth e engine where
yo ur vehicle is par ked.
RThe fuel tank is suff icientlyfilled.
RThe star ter battery has suf ficient charge .
St arting theve hicle using a smartphone
&
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work.
#Alw ays secure the engine against unin‐
te ntional starting before car rying out
maintenance or repair work.
Re quirements:RPark position jis selected.
RThe anti- theft alarm sy stem is not armed.
RThe panic alarm is not armed.
RThe hazard warning lights are switched off.
RThe engine hood is closed.
RThe doors are closed and loc ked.
RThe windo wsand sliding sunro of are closed.
#Start theve hicle using the smartphone:RAf tereve ryvehicle start, the engine runs for
te n minu tes.
RYo u can car ryout a maximum of two consec‐
utive starting attem pts.
RYo u can stop theve hicle again at any time.
RFu rther information can be found in the
smartphone app.
Securing the engine against starting before
car rying out maintenance or repair work:
#Switch on the hazard warning lights.
or
#Un lock the doors.
or
#Open a side window or the sliding sunroof. St
arting theve hicle in emer gency operation
mode
If th eve hicle does not start and the3ODFH WKH
.H\ LQ WKH 0DUNHG 6SDFH 6HH 2SHUDWRU
V 0DQXDO
display message appears in the multifunction
displa y,yo u can start theve hicle in emer gency
operation mode.
#Make surethat mar ked space 2is em pty.
#Re mo veSmartK ey1 from theke yring.
#Place Smart Key1 in mar ked space 2.
The vehicle will start af ter a short while.
If yo ure mo veSmartK ey1 from mar ked
space 2the engine continues running. For
fur ther vehicle starts ho wever,SmartK ey1
Driving and pa rking 16
7

Releasing
#Swit chon the ignition.
#Pull handle 1.
The F (USA) or !(Canada) indicator
lamp in the instrument clus ter goes out.
Emer gency braking
#Press and hold handle 1.
When theve hicle has been braked toa
st andstill, the electric parking brake is
applied. The F(USA) or !(Canada)
indicator lamp appears in the instrument
clus ter.
Note s on parking theve hicle for a longer
period
If yo u lea vetheve hicle par kedfo r longer than
fo ur we eks, the battery may become damaged.
If yo u lea vetheve hicle par kedfo r longer than six
we eks, it may suf fer dama geas a result of lack
of use.
% Further information can be obtained at a
qu alified specialist workshop. Plug-in
hybrid: obser vethe no tes in the Supple‐
ment. Otherwise, you may not recognize dan‐
ge rs.
St andby mode (extension of the star ter bat‐
te ry 's period out of use)
St andby mode function
If standby mode is activated, theve hicle can be
par kedfo r an extended pe riod of time without
losing po wer.
St andby mode is characterized bythefo llowing:
RThe star ter battery is preser ved.
RThe maximum period out of use is displa yed
in the multimedia sy stem displa y.
RFunctions such as interior protection or the
to w- aw ay alarm are not available.
RThe connection toonline services is inter rup‐
te d.
If th efo llowing conditions are fulfilled, standby
mode can be activated or deactivated using the
multimedia sy stem:
RThe engine is switched off.
RThe ignition is switched on.
Exceeding theve hicle's displa yed period out of
use may cause inco nvenience, i.e. it cannot be
guaranteed that thest ar ter battery will reliably
st art the engine.
The star ter battery must be charge dfirs t in the
fo llowing situations:
RThe vehicle's period out of use must be
ex tended.
RThe %DWWHU\ &KDUJH ,QVXIILFLHQW IRU 6WDQGE\
0RGH message appears in the multimedia
sy stem displa y.
% Standby mode is automatically deactivated
when the ignition is switched on.
Ac tivating or deactivating standby mode
Multimedia sy stem:
,9HKLFOH.î 9HKLFOH 6HW
WLQJV.6WDQGE\ 0RGH
#Ac tivate Oor deacti vate ª the function.
When you activate the function, a prom pt
appears.
Driving and parking 18
7

Air suspensionsee AIR BODY CONTROL
Air vents ................................................... 162
Ad justing (front) .................................. 162
Ad justing (rear) .................................... 163
Glo vebox .............................................1 64
Re ar cen ter air vent ............................. 163
Re ar side air vent ................................. 163
Air vents
see Air vents
Ai r-re circulation mode ............................ 160
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem)
Alternative route
see Route
Amb ient lighting ...................................... 148
Android Auto ............................................ 326
Connecting a mobile phone ................. 326
Ending ................................................. 327
No tes .................................................. 326
Overview ............................................. 326 Sound settings .................................... 327
Tr
ans ferred vehicle data ......................3 27
Animals Pets in theve hicle ................................. 56
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-theft alarm sy stem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Immobilizer ............................................ 86
Anti- theft pr otection
see ATA (
anti-theft alarm sy
stem)
Anticipatory occupant pr otection
see PRE- SAFE
®(anticipatory occu‐
pant pr otection)
see PRE-SAFE
®PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay™ ....................................... 324
Connecting an iPhone
®....................... 325
Ending ................................................ .326
No tes .................................................. 325
Overview ............................................. 324
Sound settings .................................... 325 Tr
ans ferred vehicle data ......................3 27
Asht ray
Fr ont center console ........................... 132
Re ar door ............................................ .132
Assistance graphic
Menu (on-board computer) .................. 248
Assistance sy stems
see Driving saf etysy stem
ASS YST PLUS ........................................... 377
Battery disconnection periods ............. 378
Displ aying the service due date ........... 377
Fu nction/no tes ................................... 377
Re gular service work ........................... 377
Special service requ irements .............. 377
ATA (anti-theft alarm system) .................. 86
Deactivating the alarm .......................... 87
Fu nction ................................................ 86
AT TENTION ASSIST ......................... 232, 233
Fu nction ........................ ...................... 232
Setti
ng ................................................. 233
Sy stem limitations .............................. .232
At tention assistant
see ATTENTION ASSIST
Index 521