2021 MERCEDES-BENZ S-CLASS SALOON LONG alarm

#
Turn the emer gency key anti-clockwise from
position 1toposition 2. #
Turn the emer gency key back toposition 1
and remo veit.
% Ifyo u use the emer gency keyto unlock and
open the boot lid, the anti-theT alarm system
will be triggered. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the boo
he boo t lid opening lim-
t lid opening lim-
it
it er
er Multimedia system:
4 © 5
Settings 5
Vehicle
5 Opening/closing #
Activate or deactivate theOpening height lim-
iter.
This function pr events the boot lid from hitting a
low garage ceiling, forex ample. Side wind
ows
Side windo ws Opening and closing t
Opening and closing t
he side windows
he side wind ows &
W
WARNI NG
ARNI NGRisk of becoming trapped when
opening a side wind ow
When you open a side windo w,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
to uching 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. &
W
WARNING
ARNING 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. #
If someone is trapped, release the but-
to n immedia tely or press the button in
order toreopen the side windo w. &
W
WARNI NG
ARNI NGRisk of becoming trapped when
ch ildren operate the side windo ws
Children could become trapped if they operate
th e side windo ws,particular lywhen unat ten-
ded. #
Activate thech ild saf ety lock forth ere ar
side wind ows. 104
104
Opening and closing

Anti-t
Anti-theT
heTprot
pr otection
ection F
F
unction of t
unction of t he immobiliser
he immobiliser The immobiliser pr
events your vehicle from being
star ted without the cor rect key.
The immobiliser is automatically activated when
th eve hicle is switched o., and deactivated when
th eve hicle is switched on. A A
T
TA
A (Anti-
(Anti- TheT
TheT Alar
Alarm syst
m syst em)
em) F
F
unction of t
unction of t heAT
he ATA systA syst em
em
If th eATA system is primed, a visual and audible
alarm is triggered in thefo llowing situations:
R when a door is opened
R when the boot lid is opened
R when the bonnet is opened
R when interior pr otection is triggered
(/ page 116)
R when tow- aw ay protection is triggered
(/ page 116) The
ATA system is primed automatically aTer
appr oximately ten seconds in thefo llowing situa-
tions:
R aTer locking theve hicle with thekey
R aTer locking theve hicle using KEYLESS-GO Indicator lamp
10ashes when theATA system is
primed. The
ATA system is deacti vated automatically in the
fo llowing situations:
R aTer unlocking theve hicle with thekey
R aTer unlocking theve hicle using KEYLESS-GO
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 212)
% When the Mercedes‑Benz emer gency call sys-
te m is active and the alarm st ays on for more
th an 30 seconds, a message is automatically
sent tothe Customer Assistance Centre
(/ page 411).
Deactiv
Deactiv ating t
ating theATA
he ATA #
Press theÜ, sorH button on the
key.
or #
Press the start/s top button with theke y in the
st ow age compartment (/ page 212)
Deactiv
Deactiv ating t
ating the alar
he alar m using KEYLESS-GO
m using KEYLESS-GO #
With th eke y outside theve hicle, touch the
inner sur face of the door handle. Opening and closing
115
115

F
F
unction of tow
unction of tow-awa
-a wa y pr ot
y pr otection
ection An audible and visual alarm is triggered if an alter-
ation
toyour vehicle's angle of inclination is
de tected while tow- awa y protection is primed.
To w- awa y protection is automatically primed aTer
appr oximately 60 seconds:
R aTer locking theve hicle with thekey
R aTer locking theve hicle using KEYLESS-GO
To w- awa y protection is only primed when thefo l-
lowing components are closed:
R doors
R boot lid
To w- awa y protection is automatically deactivated:
R aTer pressing theÜ orH button on the
key
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 212)
R aTer unlocking theve hicle using KEYLESS-GO
R when using HANDS-FREE ACCESS Information on collision de
tection on a par ked
ve hicle (/ page 264). Pr Pr
iming/deactiv
iming/deactiv atingtow
ating tow-awa
-a wa y pr ot
y pr otection
ection Multimedia system:
4 © 5
Settings 5
Vehicle
5 Opening/closing 5
Vehicle protection #
Prime or deactivate Tow-away protection.
To w- awa y protection is primed again in thefo llo w-
ing cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again. F
F
unction of int
unction of int er
erior pr ot
ior pr otection
ection When interior pr
otection is primed, a visual and
audible alarm is triggered if mo vement is de tected
in theve hicle interior.
Interior pr otection is primed automatically aTer
appr oximately ten seconds:
R aTer locking theve hicle with thekey R
aTer locking theve hicle using KEYLESS-GO
Interior pr otection is only primed when thefo llo w-
ing components are closed:
R doors
R boot lid
Interior pr otection is automatically deactivated:
R aTer pressing theÜ orH button on the
key
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 212)
R aTer unlocking theve hicle using KEYLESS-GO
R when using HANDS-FREE ACCESS
The following situations can lead toafa lse alarm:
R when there are moving objects such as mas-
cots in theve hicle interior
R when a side wind owis open
R when a panoramic sliding sunroof is open 116
116
Opening and closing

If t
If t
he v
he v ehicle does no
ehicle does no t st
t start:
art: #
Leavetheke y1 inthe cup holder 2. #
Depress the brake pedal and start theve hicle
using the start/s top button.
% You can switch on the po wer supply or the
ve hicle with the start/s top button.
Obser veany information rega rding display mes-
sages that can be displ ayed on the driver's dis-
pla y. S
S
t
tar
ar ting t
ting t he v
he vehicle via R
ehicle via R emot
emote Online Ser
e Online Ser vices
vices Cooling or heating t
Cooling or heating t
he v
he vehicle int
ehicle int er
erior bef
ior bef ore
ore
st
st ar
ar ting t
ting t he jour
he jour ney
ney
Ensu rethefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
R The star ter battery is su1ciently charge d. Char
Char
ging t
ging t he st
he start
arter batt
er batt er
ery bef
y bef or
ore st
e st ar
arting t
ting t he
he
jour
jour ney
ney
Yo u can receive a message on your smartphone
when the state of charge ofthe star ter battery is
lo w. You can then start theve hicle with the smart-
phone tocharge the batter y.The vehicle is auto-
matically switched o. aTer ten minutes.
Ensure thefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
St
St ar
arting t
ting t he v
he vehicle (R
ehicle (R emot
emote Online)
e Online) &
W
WARNING
ARNING Risk of crushing or entra pment
due tounintentional starting of the engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during service
or maintenance work. #
Always secure the engine against unin-
te ntional starting before ca rrying out
main tenance or repair work. R
R
eq
eq uir
uir ements:
ements:
R Park position jis selected.
R The anti-theT alarm system is not activated.
R The hazard warning light system is switched
o..
R The bonnet is closed.
R The doors are closed and loc ked.
R The windo wsand sliding sunroof are closed. #
Start theve hicle using the smartphone.
ATer every engine start, the engine runs for
te n minutes.
Yo u can car ryout a maximum of two consecutive
starting attem pts. You must start the engine with
th eke y before trying tostart theve hicle again
with the smartphone.
Yo u can switch o. theve hicle at any time as fol-
lo ws:
R Viath e Smartphone App Driving and parking
213
213

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
N *T
he boot lid is open. &
D
DAN
AN GER
GER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter theve hicle
interior if the boot lid is open when theve hicle is running, especially if theve hicle is in motion. #
Always switch o. theve hicle before opening the boot lid. #
Never drive with the boot lid open. #
Close the boot lid.
Anti-theft alarm system
Malfunction *T
he anti-theT alarm system is malfunctioning. #
Consult a quali/ed specialist workshop.
Ambient light warning sup-
port inoperative *T
he ambient lighting may not pr ovide full visual warning support. #
Lock theve hicle and unlock it again aTer a fewminutes. #
Ifth e display message appears regula rly, contact a quali/ed specialist workshop.
¥
Top up washer fluid *T
hewasher 0uid le vel in thewa sher 0uid reser voir has dropped below the minimum. #
Top up thewa sher 0uid (/ page 428).524 524
Displ
aymessages and warning/indicator lamps

Re
duced pr otection.................................. 56
Side airbag.............................................. 53
Wi ndow airbag......................................... 53
Air0 ow
Air0ow
Setting (THERMOTRONIC )...................... 189
AIRMA AIRMA TIC
TIC
Setting................................................... 305
Suspension............................................ 305
Ambient lighting Ambient lighting Setting (MBUX multimedia system)......... 179
Animals
Animals Pets in theve hicle.................................... 86
Anti-t
Anti-theT heTprot
pr otection
ection
Ad ditional door loc k................................. 92
Immobiliser............................................ 115
ASS YS
ASS YST PL
T PL US
US
Battery disconnection periods................ 424
Displaying the service due dat e.............. 423
Fu nction/no tes...................................... 423
Re gular maintenance work..................... 423
Special service requ irements................. 423
AT ATA A(anti-t
(anti-theT heTalar
alarm syst
m syst em)
em)
Deactivating the alar m........................... 115
Fu nction................................................ 115 Interior pr
otection function.....................1 16
Priming/deactivating interior pr otec-
tion........................................................ 117
Priming/deactivating tow- awa y pro-
te ction................................................... 116
To w- awa y protection function................. 116
A A TTENTION ASSIST
TTENTION ASSIST, De tecting inat tentive-
ness Setting.................................................. .275
A
A TTENTION ASSIS
TTENTION ASSIS T wit
T with micr
h micr osleep
osleep
det
det ection
ection, Attention assis tant, Co.ee cup
symbol, Driving system, Dr owsiness
de tection, Fatigue de tection, Nodding o.
Fu nction................................................ 274
System limits......................................... 274
A
A ugment
ugment ed r
ed reality
eality
Fu nction on the head-up displa y............. 349
A
A ut
ut omatic co-dr
omatic co-dr iv
iver airbag
er airbag shut
shuto.
o., Co-
driver airbag shuto ., Occupant safety
Fu nction of co-driver airbag shuto........... 57
A
A ut
ut omatic dr
omatic dr iving lights
iving lights, Headlamps............. 170
A
A ut
ut omatic fr
omatic fr ont passeng
ont passeng er airbag
er airbagshut
shuto.
o.,
PA SSENGER AIR BAG status display
PA SSENGER AIR BAG indicator lamp s...... 58A
A
ut
ut omatic lat
omatic lat er
eral suppor
al suppor t adjus
t adjustmenttment
Setting................................................... 136
A
A ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident ,
Occupant saf ety............................................. 64
A
A ut
ut omatic mirr
omatic mirr or f
or folding function
olding function
Ac tivating/deactivating.......................... 187
A
A ut
ut omatic seat adjus
omatic seat adjustment tment
Setting................................................... 135
A
A ut
ut omatic tr
omatic tr ansmission
ansmission
DIRECT SELECT le ver............................. 231
Drive prog rams...................................... 227
DY NAMIC SELECT button...................... .227
Engaging drive position.......................... 233
Engaging reve rsege ar............................ 232
Kickdown............................................... 234
Manual gear changing........................... .233
Oil temp erature (driver displa y,Spo rt
menu).................................................... 347
Selecting park position........................... 232
St eering wheel gearshiT paddles............ 233
Tr ansmission position displ ay................. 231
Tr ansmission position s........................... 231
Axle load Axle load Perm issible............................................ 480 Index
593
593

Ac
tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .............543
Ac tive Stop-and-Go Assist inoperative
See Owner's Manual.............................. 543
Ad aptive Highbeam Assist Plus cur-
re ntly una vailable See Owner's Manual ... 505
Ad aptive Highbeam Assist Plus inop-
erative.................................................. .505
Ambient light warning support inoper-
ative...................................................... 524
Anti-theT alarm system Malfunction .......524
Apply brake and start vehicle toshiT
out of P or N.......................................... 528
Apply brake todeselect P position .......... 528
Apply brake toengage D or R ................. 529
Apply brake toengage R ......................... 529
Apply parking brake topark Visit
wo rkshop ............................................... 529
Au xiliary battery malfunction (red dis-
play message) ....................................... .532 Au
xiliary battery malfunction (white
displ aymessage) .................................... 532
Bonnet not loc ked Close before start-
ing journey............................................. 522
Bonn etnot loc kedSt op immediately
Close bonnet comple tely........................ 523
Bonnet unlatched Pull le ver again to
open...................................................... 522
Cannot start vehicle See Owner's
Manual.......................................... 526, 561
Change steering wheel/ seat position
until 6 dots are visible on the upper
edge of the screen................................. 549
Charging fault Please change charging
me thod See Owner's Manual .................510
Check brake pads See Owner's Man-
ual......................................................... 537
Check dipped-beam setting (leT/
ri ght-side tra1c) .................................... 504 Consult
workshop without changing
th e transmission position ............... 512, 531
Consult workshop without starting the
ve hicle again .......................................... 512
DC charging inoperative Consult
wo rkshop ............................................... 510
DIGITAL LIGHT Functions limited............ 504
Dipped-beam setting (leT/ right-side
tra1c) Manual adjustment on ly.............. 505
Drive malfunction Stop Consult work-
shop ...................................................... 532
Drive malfunction Stop Restart vehicle ... 531
Drive overheated. Drive on with care ......532
Driver camera inoperative See Own-
er's Manual............................................ 549
Driver camera view cur rently restric-
te d See Owner's Manual........................ 548
Fr ont passenger airbag disabled See
Owner's Manual .................................... .498 602 602
Index