2021 MERCEDES-BENZ S-CLASS SALOON LONG engine

3
Selected depa rture time
4 Remaining time forth e stationary heater/
ve ntilation (in minutes)
5 Stationary heater/ ventilation active
6 Departure time activated
7 Signal strength
Fu rther possible displ ays:
R T
Time:
ime: the activated departure time.
R Zer
Zero minut
o minut es:
es:theru nning time forth e station-
ary heater is extended because the engine has
not yetreached operating temp erature when it
is star ted.
R OFF:
OFF: the stationary heater/ventilation is
switched o..
R
R eplacing t
eplacing t he r
he remot
emot e contr
e contr ol batt
ol batter
ery (st
y (st ationary
ationary
heat
heat er)
er) &
D
DAN
AN GER
GER Risk of fatal injuries if batteries
are swallo wed
Batteries contain toxic and cor rosive subs tan-
ces. Swallow ing batteries may cause se vere
internal burns within two hours. There is a
risk of fatal injur y. #
Keep batteries out of there ach of chil-
dren. #
Ifth e co ver and/or lid of the battery
compartment does not close securel y,
do not use theke y and keep it away from
ch ildren. #
If batteries are swallo wed, seek medical
attention immediatel y. +
ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmen tal
damage due toimproper disposal of bat-
te ries Batteries contain
toxic and corro-
sive substances. #
Ta
ke dischar ged batteries to a
qu ali/ed specialist workshop or toa col-
lection point for used batteries. R
R
eq
eq uir
uir ements:
ements:
R One CR2450 lithium battery
Mercedes-Benz recommends that you ha vethe
battery replaced at a quali/ed specialist work-
shop. #
Push a poin ted object into recess 1. 204
204
Climate cont
rol

Dr
Dr
iving
iving N
No
ot
tes on plug-in h
es on plug-in h ybr
ybrids
ids N
No
ot
tes on plug-in h
es on plug-in h ybr
ybrid oper
id oper ation
ation &
W
WARNING
ARNING Risk ofchemical burns and poi-
soning from damaged high-voltage battery
If th e housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. #
Avoid contact with the skin, eyes or
clo thing. #
Immediate lyrinse electrolyte splashes
o. with water and seek medical atten-
tion straight away. &
D
DAN
AN GER
GER Risk of explosion from excessive
internal pressure of the high-voltage bat-
te ry
Flammable gas may escape and ignite in the
eve nt of a vehicle /re. #
Stop thech arging process immediately
in case of unusual odours, smoke or
burn mar ks. #
Leavethe danger zone immediatel y.
Secure the danger zone at a su1cient
distance. #
Call the /re brigade. The
hybrid system combines a combustion engine
with electric mo tors. In drive prog ram A, the
hy brid system selects the most suitable drive type
according tothe driving conditions and the dis-
ta nce.
Cha racteristics when theve hicle is at a standstill:
R The combustion engine is generally switched
o..
R Idle speed only occurs in cer tain instances.
Characteristics when starting theve hicle:
R Ifth e high-voltage battery is su1ciently
ch arge d, theve hicle can be star ted with the
electric drive without the combustion engine
(noiseless start). R
Ifth e high-voltage battery forth e electrical
drive is not su1ciently charge d or the operat-
ing temp erature of the combustion engine has
not been reached, theve hicle can start with
th e combustion engine.
% Depending on the system, it may happen that
ev en though the high-voltage battery is
ch arge d, electric mode has restric ted or no
av ailabilit y.Once the combustion engine has
been operated for long enough and ambient
conditions permit, electric mode is again
av ailable without restriction.
Charac teristics wi thmoderate po wer output
re qu ests:
R The combustion engine is switched o. as
oTen as possible during the journe y.
R The vehicle can, depending on the drive pro-
gr am selected and the state of charge , be
accelerated elect rically up tospeeds of
appr oximately 140 km/h. ATer that, the com-
bustion engine is switched on. 208 208
Driving and parking

Characteristics with high po
wer output requ ests:
R The electric mo tors support the combustion
engine (boost e.ect), e.g. when pulling away
or accelerating.
R The high-voltage battery is discharging.
Characteristics when releasing the accelerator
pedal during the journe y:
R The electric mo tors are operated as a alterna-
to r when in overrun mode and during braking.
R The high-voltage battery is charging.
% In drive prog ram Î, theve hicle drives
purely elect ricall y,in drive prog rams C,
and B the combustion engine is alw ays on
No tes on elect ric mode:
R Vehicles with hybrid systems generate signi/-
cant lyless noise when stationary and when
being driven than vehicles with combustion
engines.
R When driving in elect ric mode theve hicle may
not be heard by otherroad users due tothe
signi/cantly reduced noise generated when
driving and when at a standstill. It is
forth is reason that theve hicle is equip-
ped with a sound generator, which ser ves as
an acoustic vehicle alerting system (A VAS).
R If not all of theve hicle conditions for electric
mode are met, then the combustion engine is
switched on.
No tes on the acoustic vehicle alerting system:
R The sound generator generates a stationary
noise and, up toa speed of about 60 km/h,
speed-dependent vehicle noise emissions.
R This helps other road users, particular ly
pedestrians and cyclists, tohear your vehicle
better.
R When driving at speeds abo ve20 km/h the
acoustic vehicle alerting system gradually
switches theve hicle noise emissions o.. Manual disconnection of t
Manual disconnection of t
he high-v
he high-volt
oltag
age on-
e on-
boar
boar d electr
d electr ical syst
ical syst em
em &
D
DAN
AN GER
GER Risk of death and /re due to
modi/ed and/or damaged components of
th e high-voltage on-board electrical sys-
tem
The vehicle's high- voltage on-board electrical
system is under high voltage. If you modify
component parts in theve hicle's high- voltage
on-board electrical system or touch damaged
component parts, you may be electrocuted. In
addition, modi/ed and/or damaged compo-
nents may cause a /re.
In theev ent of an accident or impact tothe
ve hicle underbod y,components of the high-
vo ltage electrical system may be damaged
although the damage is not visible. #
Never make any modi/cations tothe
high- voltage on-board electrical system. #
Do not switch on or use theve hicle if its
high- voltage on-board electrical system
components ha vebeen modi/ed or dam-
aged. Driving and parking
209 209

R
operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. R
R
eq
eq uir
uir ements:
ements:
R theke y is in theve hicle and is recognised.
R the brake pedal is not depressed. #
T
To switc
o switc h on t
h on the pow
he pow er supply
er supply :
:press button
1 once.
Yo u can, forex ample, activate the windscreen
wiper.
The po wer supply is switched o. again if thefo l-
lowing conditions are met:
R you open the driver's door.
R you press button 1twice more. #
T
To switc
o switc h on t
h on the v
he vehicle:
ehicle: press button 1
twice.
Indicator and warning lamps go on in the driv-
er's displa y.
The vehicle is switched o. again if one of thefo l-
lowing conditions is met:
R you do not start theve hicle within 15 minutes
and the transmission is in position jorthe
electric parking brake is applied.
R you press button 1once. S S
t
tar
ar ting t
ting t he v
he vehicle
ehicle S
S
t
tar
ar ting t
ting t he v
he vehicle wit
ehicle wit h t
h the st
he st ar
art/st
t/st op butt
op butt on
on &
D
DAN
AN GER
GER Risk of fatal injuries 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. Driving and parking
211
211

#
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of /re due to0ammable
material in the engine compartment or the
ex haust system
Flammable materials may ignite. #
Therefore, check regula rly th at there are
no 0ammable materials in the engine
compartment or on theex haust system. R
R
eq
eq uir
uir ements:
ements:
R theke y is in theve hicle and is recognised. #
ShiT the transmission toposition jori. #
Depress the brake pedal and press button 1
once. #
Ifth eve hicle does not start: switch o. non-
essential consumers and press but ton1
once. #
Ifth eve hicle still does not start and the dis-
play message Place the key in the marked
space See Owner's Manual also appears in th
e driver's displa y: starttheve hicle with the
ke y in the mar ked space (emer gency ope ra-
tion mode) (/ page 212).
% You can switch o. theve hicle while driving. To
do this, press 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 215).
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 wit
ehicle wit h t
h the ke
he key in t
y in t hestow
he st owage
age
com
com par
partment (emerg
tment (emerg ency oper
ency operation mode)
ation mode)
If th eve hicle does not start and thePlace the
key in the marked space See Owner's Manual
display message appears in the driver's displa y,
yo u can start theve hicle in emer gency ope ration
mode. #
Make sure that the cup holder 2is em pty. #
Remo vetheke y1 from theke yring. #
Place theke y1 inthe cup holder 2.
The vehicle will start aTer a short time.
When youre mo vethe, key1 from the cup
holder 2,theve hicle can be driven. For fur-
th er vehicle starts, ho wever,th eke y1 must
be located in the cup holder 2during the
entire journe y. #
Have theke y1ch ecked at a quali/ed special-
ist workshop. 212 212
Driving and parking

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

R
By pressing theÜ ors button on the
key
% Further information can be found in the
smartphone app.
Secur
Secur ing t
ing the v
he vehicle ag
ehicle ag ains
ainst st
t star
arting bef
ting bef or
ore car ry-
e car ry-
ing out maint
ing out maint enance or r
enance or repair w
epair wor
ork:
k: #
Switch on the hazard warning light system.
or #
Unlock the doors.
or #
Open a side window or the sliding sunroof. R
R
unning-in not
unning-in not es
es To
preser vethe engine during the /rst 1,500 km:
R Drive at varying road speeds and engine
speeds.
R Do not drive at speeds greater than
140 km/h.
R Drive theve hicle in drive prog ram A
or ;. R
ShiT tothe next highest gear at theve ry latest
when the needle reaches the last third before
th ere d area in there v counter.
R Do not shiT down manual lyin order tobrake.
R Avoid overstraining theve hicle, e.g. driving at
full thro ttle.
R do not depress the accelerator pedal past the
pressure point (kickdown).
R Only increase the engine speed gradually and
accelerate theve hicle tofull speed aTer
1,500 km.
This also applies when the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing running-in
no tes:
R In cer tain driving and driving saf ety sy stems,
th e sensors adjust automatically while a cer-
ta in distance is being driven aTer theve hicle
has been deli vered or aTer repairs. Full sys-
te m e.ectiveness is not reached until the end
of this teach-in process.
R Brakepads, brake disks and tyres that are
either new or ha vebeen replaced only achie veoptimum braking e.ect and
grip aTer se veral
hund red kilometres of driving. Compensate for
th ere duced braking e.ect byapplying greater
fo rc eto the brake pedal. N
No
ot
tes on op
es on op timised acceler
timised acceler ation
ation If all necessary
requ irements and activation con-
ditions are ful/lled, the best possible acceleration
can be achie ved from a standstill.
Do not use the optimised acceleration on public
roads. Individual wheels could spin and you could
lose control of theve hicle. There is an increased
ri sk of skidding and/or accident.
Be sure toobser vethe saf ety no tes and informa-
tion on ESP ®
(/ page 269). Mo
Mo
ving awa
ving away wit
y wit h op
h optimised acceler
timised acceler ation
ation &
W
WARNING
ARNING Risk of skidding and having an
accident from wheels spinning
When you use optimised acceleration, individ-
ual wheels could spin and you could lose con-
trol of theve hicle. 214
214
Driving and parking

If ESP
®
is deactivated, there is a risk of skid-
ding and accident! #
Make sure that no persons or obs tacles
are in the close vicinity of your vehicle. R
R
eq
eq uir
uir ements:
ements:
R theve hicle is run in (/ page 214).
R theve hicle and tyres are in good condition.
R you are on a high-g rip ro adw ay.
R the engine and transmission are at normal
operating temp erature.
* NO
NOTE
TEIncreased wear due tooptimised
acceleration When pulling
away with optimised accelera-
tion, all components of the driv etra in are sub-
jected toave ry high load.
This can lead toincreased component wear. #
Do not alw ays pull away with optimised
acceleration. #
Engage theh drive position (/ page 233). #
Movethe steering wheel tothe straight-ahead
position. #
Select the sportiest available drive prog ram
B orC(/ page 228). #
Deactivating ESP ®
(/ page 271). #
Depress and hold the brake pedal /rmly with
yo ur leT foot. #
With your right foot , fully depress the acceler-
ator pedal. #
ATer no more than /ve seconds, take your leT
fo ot quickly o. the brake, but keep the accel-
erator pedal depressed.
The vehicle pulls away at maximum accelera-
tion. #
Switch on ESP ®
once the acceleration proce-
dure is comple te.
Ending op Ending op timised acceler
timised acceler ation
ation #
Remo veyour foot from the accelerator pedal. #
Reactivate the ESP ®
.
% ATer you pull away with optimised accelera-
tion, components of the driv etra in can
become very hot, which means that optimised acceleration
values may be reached again
only aTer a fewminutes. N
No
ot
tes on dr
es on dr iving
iving &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cann otget into the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. Driving and parking
215 215