2020 MERCEDES-BENZ S-CLASS SALOON LONG engine

Moving
away with optimised acceleration &
WARNING Risk of skidding and having
an accident from wheels spinning
When you use optimised acceleration, indi‐
vidual wheels could spin and you could lose
cont rol of theve hicle.
If ESP ®
is deactivated, there is a risk of skid‐
ding and accident! #
Make sure that no persons or obstacles
are in the close vicinity of your vehicle. Re
quirements:
R theve hicle is run in (/ page 191).
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
TEIncreased wear due tooptimised
acceleration When pulling
away with optimised accelera‐
tion, all components of the driv etra in are
subjected toave ry high load.
This can lead toinc reased component wear. #
Do not alw ays pull away with optimised
acceleration. #
Engage theh drive position (/ page 203). #
Movethesteering wheel tothest ra ight-
ahead position. #
Select the sportiest available drive program
B orC(/ page 200). #
Deactivating ESP ®
(/ page 224). #
Depress and hold the brake pedal firm ly wi th
yo ur left foot. #
With your right foot , fully depress the accel‐
erator pedal. #
After no more than five seconds, take your
left foot quickly off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accelera‐
tion. #
Swit chon ESP ®
once the acceleration proce‐
dure is comple te.
Ending optimised acceleration #
Remo veyour foot from the accelerator pedal. #
Reactivate the ESP ®
.
% Afteryo u pull away with optimised accelera‐
tion, components of the driv etra in can
become very hot, which means that opti‐
mised acceleration values may be reached
again on lyafte r a few minutes. Note
s on driving &
WARNING Risk of accident due to
objects 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. 19 2
Driving and pa rking

This jeopardises
the operating and road
saf ety of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Alw aysfit th efloor mats securely and
as prescribed in order toensure that
th ere is alw ays suf ficient room forthe
pedals. #
Do not use loose floor mats and do not
place floor mats on top of one ano ther. &
WARNING Risk of accident due toincor‐
re ct foot we ar
Incor rect foot we ar includes, forex ample:
R shoes with plat form soles
R shoes with high heels
R slippers #
Alw ayswe ar suitable foot we ar so that
yo u can operate the pedals safel y. &
WARNING Risk of accident if the ignition
is switched off while driving
If yo u swit choff the ignition while driving,
saf ety functions are restricted or no longer
av ailable.
Yo u will then need, forex ample, touse con‐
siderably more forc eto steer and brake. #
Do not switch off the ignition while driv‐
ing. &
DANG ER Risk of death 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. #
Never lea vethe engine or, if present,
th e auxiliary heating running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. #
Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case when theve hicle
becomes stuck in sn ow,fo rex ample. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. Driving and pa
rking 19 3

#
Open a window on the side of theve hi‐
cle facing away from the wind toensure
an adequate supply of fresh air. &
WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il. #
Never use the brake pedal as a foot re st. #
Do not depress the brake pedal and the
accelerator pedal at the same time
while driving. *
NO
TEEngine dama gedue toexcessively
high engine speeds The engine will be damaged if
you drive with
th e engine in theov errevving range. #
Do not drive wi th the engine in theove r‐
re vving range. *
NO
TECausing wearto the brake linings
by permanently depressing the brake
pedal #
Do not permanently depress the brake
pedal while driving. #
Touse braking ef fect of the engine,
shift toa lo werge ar in good time. *
NO
TEDama getothe driv etra in and
engine when pulling away #
Do not warm upthe engine while the
ve hicle is stationar y.Pull away immedi‐
atel y. #
Avoid high engine speeds and driving at
full thro ttle until the engine has reached
its operating temp erature. *
NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel The engine is not
running smo othly and is
misfiring. Non-combus
ted fuel may get into the cata‐
lytic con verter. #
Only depress the accelera tor pedal
slightl y. #
Have the cause rectified immediately at
a qu alified specialist workshop. Note
s on driving with a roof load, trailer or
ful lyladen vehicle
When driving with a loaded roof luggage rack or
trailer as well as with a fully laden or fully occu‐
pied vehicle, theve hicle's driving and steering
ch aracteristics change.
Yo u should bear thefo llowing in mind:
R Do not exceed the permissible roof load and
to wing capacity. Also obser vethete ch nical
da ta inthe printed Owner's Manual.
R Evenly distribute thero of load, and place
heavy objects at the bottom. Also comply
with the no tes on loading theve hicle
(/ page 134).
R Drive attentivel y,and avoid sudden lypulling
aw ay, braking and steering as well as rapid
cornering. 194
Driving and pa rking

Note
s on driving on salt-treated roads
The braking ef fect is limited on salt-trea ted
ro ads.
Therefore, obse rveth efo llowing no tes:
R due tosalt build-up on the brake disks and
brakepads, the braking dis tance can increase
considerab lyor result in braking only on one
side
R maintain a much greater safe dis tance tothe
ve hicle in front
To remo vesalt build-up:
R brake occasionally while paying attention to
th e tra ffic conditions
R carefully depress the brake pedal at the end
of the journey and when starting the next
journey
Note s on aquaplaning
Aq uaplaning can take place once a cer tain
amount of water has accumulated on thero ad
sur face. Obser
vethefo llowing no tes during heavy precip‐
itation or in conditions in which aquaplaning may
occur:
R reduce speed
R avoid tyre ruts
R avoid sudden steering mo vements
R brake carefully
% Also obser vethe no tes on regular lych ecking
wheels and tyres (/ page 383).
Note s on driving through water on the road
sur face
Wa ter which has entered into theve hicle can
damage the engine, electrics and transmission.
Wa ter can also enter the air intake of the engine
and cause engine damage.
Obser vethefo llowing if you must drive thro ugh
wate r:
R The water,when calm, may only reach the
lo we r edge of theve hicle body.
R Drive at a maximum speed of 10km/h;
wate r can otherwise enter theve hicle interior
or engine compartment. R
Vehicles tr avelling in front, or oncoming vehi‐
cles, can create waves which may exceed the
maximum permissible dep thofthewate r.
The braking ef fect of the brakes is reduced af ter
fo rd ing. Brake carefully while paying attention to
th e tra ffic conditions until braking po wer has
been fully restored. Fu
nction of rear axle steering The
rear axle steering is an electromechanical
auxiliary steering on there ar axle which adjusts
th esteering of there ar wheels according tothe
position of the front wheels, depending on the
speed. This results in greater manoeuvrability
and impr oved driving stabilit y,e.g. when corner‐
ing.
Re ar axle steering has thefo llowing characteris‐
tics:
R reduced steering ef fort and turning circle
re sulting in reduced parking ef fort
R impr oved driving stabilit y,e.g. when corner‐
ing Driving and parking
19 5

R
more direct steering resulting in impr oved
handling of theve hicle
Obser vethe no tes on snow chains
(/ page 383) and on activating sn ow chain
mode. ECO
start/s top function Ope
ration of the ECO start/s top function
% The ECO start/ stop function is not available
in all drive prog rams, depending on the
engine. Obser vethest atus display in the
driver display forth is.
The engine is switched off automatically in the
fo llowing situations if all vehicle conditions for
an automatic engine stop are me t:
R You brake theve hicle toast andstill in trans‐
mission position hori.
R Vehicles with a 48 V on-board electrical
sy stem: You depress the brake pedal when
tra velling at a low speed. If
th e sy stem has de tected one of thefo llowing
situations, the engine will not stop:
R Youstop at a stop sign and there is no vehi‐
cle in front of you.
R The vehicle that stopped in front of you
st arts up again.
R You manoeuv re, turn thesteering wheel
sharply or engage reve rsege ar.
% Ifth e sy stem de tects an intelli gent stop
inhibitor, forex ample, a stop sign, the engine
will not stop.
If yo u activate the HOLD function or engage
th e park position j,the engine can be
switched off in spite of an intelligent stop
inhibitor.
The engine is restar ted automatically if:
R You en gage transmission position hork.
R You depress the accelerator pedal.
R An automatic engine start is requiredbythe
ve hicle.
R Youre lease the brake pedal. R
Vehicles with a 48 V on-board electrical
sy stem:
- Youre lease the brake pedal on a downhill
gradient and theve hicle does not roll.
- The vehicle rolls on a downhill gradient
and does not automatically enter glide
mode at 20 km/h.
ECO start/ stop function symbols in the driver
display:
R The symbol è(green) appears when the
ve hicle is at a standstill: the engine was
switched off bythe ECO start/ stop function.
R The symbol ç(yellow) appears when the
ve hicle is at a standstill: not all vehicle condi‐
tions for an engine stop ha vebeen met.
R Neither the symbol ènorç appears
when theve hicle is at a standstill: an intelli‐
ge nt stop inhibitor was de tected, forex am‐
ple, a stop sign.
R The symbol sappears: the ECO start/
st op function is deactivated or there is a mal‐
function. 19 6
Driving and pa rking

If
th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds and the engine is not restar ted.
In addition, thefo llowing display message
appears in the driver display:
Vehicle is operational Switch off ignition before
exiting
If yo u do not swit choff the ignition, it is auto‐
matically switched off af terth re e minutes. Deactivating or activating
the ECO start/
sto p function #
Press button 1.
A displ ayappears in the driver display when
switching the ECO start/ stop function
off/on.
% A continuous sdisplay appears in the
driver display while the ECO start/ stop func‐
tion is deactivated. ECO display function
The ECO display sho
wsanevaluation of your
driving style on the driver display depending on
th e situation. This enables youto check the ef fi‐
ciency of your driving style and adjust it if neces‐
sar y.The ECO display menu showsa ball 1that
will rollfo rw ards or backwards on a stylised road
in the direction of tr avel according tothe driving
ch aracteristics.
Abo veand below thero ad, lines mark the area
fo r an ef ficient driving style 3. Ball 1will light
up in green if it is rolling within these lines. Out‐
side the lines, the ball will light up in orange. Driving and parking
197

8
Vehicle in front
9 Speed limit
% Only route event 8"vehicle in front" will be
displa yed in drive program A.
Sy stem limits
If th e calculated route is adhered towhen route
guidance is active, ECO Assist will operate with
greater accuracy. The basic function is also
av ailable without active route guidance. Notall
information and traf fic situations can be fore‐
seen. The quality depends on the map data.
ECO Assist is only an aid. The driver is responsi‐
ble forke eping a safe dis tance from theve hicle
in front, forve hicle speed and for braking in
good time.
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, high lyvariable
shade conditions, rain, sno w,fog or heavy
spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections. R
Ifth e windscreen is dirty in the area of the
multifunction camera, or if the camera is
mis ted up, damaged or co vered.
R Ifth e tra ffic signs are hard todetect, e.g. due
to dirt, snow or insuf ficient lighting, or
because they are co vered.
R Ifth e information in the navigation sy stem's
digital map is incor rect or out-of-da te.
R Ifth e signs are ambiguous, e.g. road signs in
ro adwor ksor in adjacent lanes. DY
NA MIC SELECT switch Fu
nction of theDY NA MIC SELECT button %
Depending on the engine and equipment,
th eve hicle has dif fere nt drive programs.
Use theDY NA MIC SELECT switch tochange
between thefo llowing drive programs.
The chosen drive program appears in the driver
displa y.
= Individual
R individual settings B
Sport+
R very sporty driving style with lo wered sus‐
pension
R emphasises theve hicle's ownov ersteering
and under steering characteristics for a more
active driving style
R only suitable for good road conditions, a dry
ro ad sur face and a clear stre tch of road
C Sport
R sporty driving style with lo wered suspension
R still sporty, but with an emphasis on stability
R allows th e sporty driver a more active driving
st yle
R only suitable for good road conditions, a dry
ro ad sur face and a clear stre tch of road
A Comfort
R com fortable and economical driving
R balance between traction and stability
R recommended for all road conditions Driving and parking
19 9

;
Eco
R particular lyeconomical driving
R balance between traction and stability
R recommended for all road conditions
Depending on the drive program, thefo llowing
sy stems change their characteristics:
R drive
- engine and transmission management
- Active Dis tance Assi stDISTRONIC
- availability of Glide mode
R ESP ®
R suspension
- suspension and damping
- vehicle le vel
R steering Selecting
the drive prog ram #
Press theDY NA MIC SELECT button 1on
th e left or right.
The chosen drive program appears in the dis‐
play of the button. Configuring
DYNA MIC SELECT (multimedia
sy stem) Multimedia sy
stem:
4 © 5
Settings 5
Vehicle
5 DYNAMIC SELECT
Setting drive prog ram I #
Select Individual. #
Select and set a categor y.
Switching there set display on/off #
Switch Ask when starting on or off.
Fu nction on: the next time theve hicle is star ted
a prom ptappears asking whe ther the last active
drive prog ram should be restored. If the ECO
st art/ stop function was deactivated, an addi‐
tional prom ptappears asking if the function
should remain deactivated.
% The prom ptappears on ly ifthe pr eviously
active settings deviate from thest andard
settings.
Fu nction off: the next time theve hicle is star‐
te dth eA drive program is set automatically. 200
Driving and parking