2021 MERCEDES-BENZ S-CLASS SALOON LONG engine

N
N
o
ot
tes on t
es on t he dr
he driv
iver's display
er's display &
W
WARNING
ARNING Risk of accident if the driver
display fails
If th e driver display has failed or is malfunc-
tioning, function restrictions in systems rele-
va nt tosaf ety cann otbe de tected.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y. #
Have theve hicle checked immediately at
a qu ali/ed specialist workshop. If
th e operating saf ety of your vehicle is impaired,
park theve hicle immediately and safel y.Contact a
qu ali/ed specialist workshop.
The driver's display sho wsbasic information such
as speed, engine speed, fuel le vel, coolant tem-
perature as well as indicator and warning lamps.
Ad ditional functions available toyou include the
fo llowing:
R Di.erent menus, e.g. for assistance and navi-
ga tion R
Status displ aysfo rth e driving systems
R Display messages
R Information on speed, Consumptionand
ra nge
R Pow er me ter le vel and state of charge ofthe
high- voltage battery
R Indicator and warning lamps
Yo ur plug-in hybrid vehicle is also /tted with the
fo llowing warning and indicator lamps:
R -
õ Drive is activated
- ° "Foot o. the accelerator"
(/ page 226)
- ò Acoustic presence indicator inopera-
tive
The menu contents and settings can be individu-
ally adap ted and set. N No
ot
tes on t
es on t he 3D dr
he 3D dr iv
iver's display
er's display
The 3D driver's display enables a spatial represen-
ta tion of the content of the driver's displa y.It is a prerequisi
tethat the driver be recorded bythe
driver camera.
Sy Sy st
stem limits
em limits
The system may be impaired or may not function
in thefo llowing situations:
R The driver camera is deactivated or is not
working.
R The driver is outside the de tection range of
th e driver camera.
R The operating conditions are not in place, e.g.
ifth e outside temp erature is too low or too
high. Oper Oper
ating t
ating t he dr
he driv
iver's displ ay
er's display &
W
WARNING
ARNING Risk of distraction due toinfor-
mation systems and communications
equipment
If yo u operate information systems and com-
munications equipment integ rated in theve hi-
cle when driving, you could be distracted from Driver display
345 345

V
V
ehicles wit
ehicles wit h a 48 V on-boar
h a 48 V on-boar d electr
d electrical syst
ical syst em
em 1
The area sho ws the electric drive support.
2 This area sho ws there cuperation behaviour of
th e electric mo tor.
% Due tovarious system limits, theva lues dis-
pla yed may temp orarily di.er slightly from the
actual value. F
F
unction of t
unction of t he pow
he power met
er meter
er 1
Start of the POWER display range
2 End of the POWER display range
3 Current state of charge ofthe high-voltage
battery
4 Maximum rega ined output
5 Start of the display range of there cuperated
energy
In elect ric mode, the area 1-2 showswhat
percentage of the electrical drive is cur rently
being used. The combustion engine is switched
on at a percentage of 100%. In boost mode, theelectrical po
wer assistance of the drive is dis-
pla yed.
The area 45shows th ere cuperation and
ch arging behaviour using the combustion engine.
% Due tovarious system limits, the displa yed
va lue 4 may temp orarily di.er slightly from
th e actual value. Ov Ov
er
ervie
vie w of st
w of st atus display
atus display s on t
s on the dr
he driv
iver's dis-
er's dis-
play
play
The status displa ysforth e driving and driving
saf ety sy stems can be found in display sections
1 to4 . 352
352
Driver display

ASS
YS
ASS YST PL
T PL US ser
US ser vice int
vice int erv
erval display
al display F
F
unction of t
unction of t he ASSYS
he AS SYST PL
T PL US ser
US ser vice int
vice int erv
erval dis-
al dis-
play
play The ASS
YST PLUS service inter val display on the
driver display pr ovides information on there main-
ing time or distance before the next service due
date.
Yo u can hide this service display using theG
back button on the leT-hand side of the steering
wheel.
Depending on how theve hicle is used, the
ASS YST PLUS service inter val display may shor ten
th e service inter val, e.g. in thefo llowing cases:
R Mainly short-distance driving
R When the engine is oTen leT idling for long
periods
R Intheev ent of frequent cold start phases
R V Vehicles wit
ehicles wit h a diesel par
h a diesel par ticulat
ticulate
e/lt
/lt er:
er: inthe
ev ent of frequently inter rupted rege neration of
th e diesel particulate /lter
Mercedes-Benz recommends avoiding such oper-
ating conditions. Yo
u can obtain information concerning the servic-
ing of your vehicle from a quali/ed specialist
wo rkshop, e.g. a Mercedes-Benz service cent re. Displa
Displa
ying t
ying the ser
he ser vice due date
vice due date Driver displa
y:
4 Service
The next service due date is displa yed. #
T
To e
o e xit t
xit t he displa y:
he displ ay:press the back button
G onthe leT-hand side of the steering
wheel.
Bear in mind thefo llowing related topic:
R Operating the driver display (/ page 345). Inf
Inf
or
ormation on r
mation on r egular maint
egular maint enance w
enance work
ork *
N
NOOTE
TE Premature wearthro ugh failure to
obser veservice due dates Main
tenance workwhich is not car ried out at
th eright time or inco mplete ly can lead to
increased wear and damage totheve hicle. #
Adhere tothe prescribed service inter-
va ls. #
Always ha vethe prescribed maintenance
wo rkcar ried out at a quali/ed specialist
wo rkshop. N
No
ot
tes on special ser
es on special ser vice r
vice req
equir
uir ements
ements The prescribed service inter
val is based on nor-
mal operation of theve hicle. Ha vethe mainte-
nance workcar ried out more oTen than prescri-
bed if operating conditions are di1cult or the
ve hicle is subject toincreased stress.
The ASS YST PLUS service inter val display is only
an aid. The driver of theve hicle bears responsibil-
ity as rega rdsto whe ther maintenance work
needs tobe per form ed more oTen than speci/ed
based on the actual operating conditions and/or
loads.
Examples of arduous operating conditions:
R Regular city driving with frequent intermediate
stops
R Mainly short-distance driving Maintenance and care
423 423

R
Frequent operation in mountainous terrain or
on poor road sur faces
R When the engine is oTen leT idling for long
periods
R Operation in particular lydusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air /lter, air /lter, engine oil and oil /lter,
fo rex ample, changed more frequentl y.The tyres
must be checked more frequently if theve hicle is
operated under increased loads. Further informa-
tion can be obtained at a quali/ed specialist work-
shop. Batt Batt
er
ery disconnection per
y disconnection per iods
iodsThe AS
SYST PLUS service inter val display can cal-
culate the service due date only when the battery
is connected. #
Display and no tedown the service due date
on the driver display before disconnecting the
battery (/ page 423). Engine com
Engine com
par
partment
tment A
A
ctiv
ctiv e bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otection)
ection) Oper
Oper
ation of t
ation of t he activ
he active bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otec-
ec-
tion)
tion)
In cer tain accident situations, the actuation of the
active bonnet reduces therisk of injury topedes-
trians. The rear area of the bonnet is raised by
appr oximately 80 mm.
ATer being triggered, the active bonnet remains in
th era ised position. Limited visibility due tothe
ra ised bonnet cannot be ruled out.
ATer the active bonnet has been actuated, pedes-
trian pr otection may be limited.
Ha ve the full functionality of the active bonnet
re stored immediately in a quali/ed specialist
wo rkshop.
If necessar y,adjust your seat position and drive
carefully toaqu ali/ed specialist workshop. If a
safe continued jou rney is not possible, contact a
qu ali/ed specialist workshop. Opening and closing t Opening and closing t
he bonnet
he bonn et &
W
WARNI NG
ARNI NGRisk of accident due todriving
with the bonnet unloc ked
The bonnet may open and blo ckyour vie w. #
Neverre lease the bonnet when driving. #
Before every trip, ensure that the engine
bonnet is loc ked. &
W
WARNING
ARNING Risk of accident and inju ry
when opening and closing the bonnet
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonnet's range of mo vement. #
Do not open or close the bonnet if there
is a person in the bonnet's range of
mo vement. 424 424
Maintenance and care

&
W
WARNI NG
ARNI NGRisk of burns when opening the
bonnet
If yo u open the bonnet in theev ent of an over-
heated engine or /re in the engine compart-
ment, thefo llowing situations may occur:
R You may come into contact with hot gases.
R You may come into contact with other
escaping hot operating 0uids. #
Before opening the bonnet, allow the
engine tocool down. #
Intheev ent of a /re in the engine com-
partment, keep the bonnet closed and
call the /re service. &
W
WARNING
ARNING Risk of injury due tomoving
parts
Components in the engine compartment may
continue torun or start unexpectedly even
when the drive system is switched o..
Obser vethefo llowing if you must open the
bonnet: #
Switch o. theve hicle. #
Neverto uch the danger zones sur round-
ing moving components, e.g. thero tation
area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving pa rts. &
W
WARNING
ARNING Risk of injury from touching
components under voltage
The ignition system and the fuel injection sys-
te m operate at high voltage. You could receive
an elect ric shoc k. #
Neverto uch ignition system or fuel injec-
tion system components when theve hi-
cle is switched on. The live components include
thefo llowing, for
ex ample:
R Ignition coils
R Fuel injectors R
Electric lines tothe ignition coils and the fuel
injectors &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of injury from using the
windscreen wipers when the bonnet is
open
If th e windscreen wipers start moving when
th e bonnet is open, you could be trapped by
th e wiper linkage. #
Always switch o. the windscreen wipers
and theve hicle /r stifyo u need toopen
th e bonnet. Maintenance and care
425
425

Opening t
Opening t
he bonnet
he bonnet #
Pull on handle 1twice.
The bonnet will be released and open slightl y.#
Then liT the bonnet byhand. Closing t
Closing t
he bonnet
he bonn et
* NO
NOTE
TEDama getothe bonnet If
th e bonnet is closed manuall y,there is a risk
of dents. #
Do not close the bonnet manuall y. #
Lowe rth e bonnet toa height of around 20 cm
and then allow it tofall, applying a little force
as you let it go. #
Ifth e bonnet can still be liTed slightl y,open
th e bonnet again and close it with a little more
fo rc e until it engages cor rectl y. Engine oil
Engine oil
Chec
Chec
king t
king t he engine oil lev
he engine oil lev el using t
el using the dr
he driv
iver dis-
er dis-
play
play
R R eq
eq uir
uir ements:
ements:
R The engine has been warmed up.
R The vehicle is par ked on a le vel sur face.
R The engine is running at idle speed.
R The bonnet is closed. De
term ining the engine oil le vel can take up to
30 minutes with a normal driving style and even
longer with an active driving style.
Driver display:
4 Service
The engine oil le vel is shown.
One of thefo llowing message s will appear onthe
driver displa y:
R Engine oil level Measuring now…: the engine
oil le vel cannot be de term ined yet. #
Repeat there qu est aTer a maximum of
30 minutes' driving.
R Engine oil level OK andthe bar display for
indicating the engine oil le vel on the driver dis-
play is green and is between "min" and "max":
th e engine oil le vel is cor rect.
R Engine oil level Top up 1,0 l andthe bar dis-
play for indicating the engine oil le vel on the
driver display is yellow and is below "min": #
Add 1 l of engine oil. 426 426
Maintenance and care

R
Engine oil level Reduce andthe bar display for
indicating the engine oil le vel on the driver dis-
play is yellow and is abo ve"max": #
Drain o. any excess engine oil that has been
added. Todo so, consult a quali/ed specialist
wo rkshop.
R For engine oil level, switch on vehicle #
Switch on theve hicle tocheck the engine oil
le ve l.
R Engine oil level System inoperative: The oil
leve l sensor is defective or not connected. #
Consult a quali/ed specialist workshop.
R Engine oil level currently inoperative #
Close the bonnet.
T T opping up engine oil
opping up engine oil &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of /re and injury from
engine oil
If engine oil comes into contact with hot com-
ponent parts in the engine compartment, it
may ignite. #
Make sure that no engine oil is spilled
next tothe /ller opening. #
Allow the engine tocool o. and thor-
oughly clean the engine oil from compo-
nent parts before starting theve hicle. *
N NOOTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters which
do not cor respond tothe speci/cations
ex plicitly prescribed forth e service inter-
va ls. #
Follow the inst ructions on the service
inter val display forch anging the engine oil and obser
vethe prescribed change
inter vals. #
Do not use additives. *
N NOOTE
TE Damage caused bytopping up too
much engine oil To
o much engine oil can damage the engine or
th e catalytic con verter. #
Have excess engine oil remo ved at a
qu ali/ed specialist workshop. %
Depending on driving st yle, theve hicle con-
sumes up to0.8 litre of oil per 1000 km. The
oil consum ption may be higher than this when
th eve hicle is new or if you frequently drive at
high engine speeds.
% Depending on the engine, the cap may be
installed in the engine compartment in di.er-
ent locations. Maintenance and care
427
427

#
Turn cap 1anti-clockwise and remo veit. #
Top up the engine oil. #
Replace cap 1and turn it clockwise until it
engages. #
Check the oil le vel again (/ page 426). Chec
Chec
king t
king t he coolant lev
he coolant lev el
el &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of scalding from hot cool-
ant
If yo u open the cap, you could be scalded. #
Let the mo tor cool down before opening
th e cap. #
When opening the cap, wear pr otective
glo ves and saf ety glasses. #
Open the cap slo wlytorelease pressure. #
Only ha vethe coolant checked or re/lled at a
qu ali/ed specialist workshop. T
T
opping up t
opping up t he windscr
he windscreen w
een washer syst
asher syst em
em &
W
WARNING
ARNING Risk of injury due tomoving
parts
Components in the engine compartment may
continue torun or start unexpectedly even
when the drive system is switched o..
Obser vethefo llowing if you must open the
bonnet: #
Switch o. theve hicle. #
Neverto uch the danger zones sur round-
ing moving components, e.g. thero tation
area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving pa rts. &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. 428
428
Main
tenance and ca re