light MERCEDES-BENZ S-CLASS SALOON LONG 2021 Owners Manual

Light and sight
Light and sight
............................................ 169 169
Exterior lighting ........................................... 169
Interior lighting ............................................ 178
Wi ndsc reen wipers and windscreen
wa sher system ............................................ 181
Mir rors ........................................................ 184
Area permeable toradio waves on the
windscreen ................................................ .187
Inf rare d-re0ective windscreen function ........ 188 Climat Climat
e contr
e contr ol
ol........................................... 189 189
Overview of climate control systems ............ 189
Operating the climate control system .......... 191 Dr Dr
iving and par
iving and par king
king..................................... 208 208
Driving ........................................................2 08
DY NAMIC SELECT button ........................... .226
Au tomatic transmission .............................. .231
Fu nction of the 4MATIC ...............................2 35
Re fuelling .................................................... 235
Charging the high-voltage battery (plug-in
hy brid) ........................................................ 241
Pa rking .......................................................2 58
Driving and driving saf ety sy stems ............... 266 Tr
ailer hitch ................................................ .336
Bicycle rack function ................................... 342
Ve hicle towing instructions .......................... 344 Dr
Dr
iv
iver displa
er displa y
y............................................. .345
345
No tes on the driver's display ....................... 345
No tes on the 3D driver's display .................. 345
Operating the driver's display ...................... 345
Driver display menus ................................... 346
Head-up display .......................................... 348
Ve hicles with a 48 V on-board elect rical
system ........................................................ 352
Fu nction of the po wer me ter ........................ 352
Overview of status displa yson the driver's
display ........................................................3 52 MBUX V MBUX V
oice Assist
oice Assist ant
ant................................. 354 354
No tes on operating saf ety .......................... .354
Operation .................................................... 354
Using MBUX Voice Assistant e.ectively .......3 56
Essential voice commands .......................... 357 MBUX multimedia syst MBUX multimedia syst
em
em............................ 361 361
Overview and operation ...............................3 61
System settings .......................................... 382
Plug-in hybrid settings ................................ .387
Na vigation and tra1c .................................. 388
Te lephone ................................................... 397
Mercedes me app ....................................... 400
Mercedes-Benz emer gency call system ....... 409
Ra dio, media & TV....................................... 416
Sound settings ............................................ 422 Maint Maint
enance and car
enance and car e
e................................. 423 423
ASS YST PLUS service inter val display .......... 423
Engine compartment ................................... 424
Cleaning and care ....................................... 429 Br Br
eakdo
eakdo wn assist
wn assist ance
ance................................. 437 437
Emer gency .................................................. 437
Flat tyre ...................................................... 439
Battery (vehicle) .......................................... 444
To w- starting or towing away ........................ 450
Electrical fuses ............................................ 457 Contents
3 3

1
Light switch →
169
2 Steering wheel gearshiT paddles →
233
3 Combination switch →
171
4 Driver displ ay →
345
5 DIRECT SELECT le ver →
231
6 ü Start/stop button →
211
è ECO start/s top function →
220
7 Central display →
361
8 Glovecompartment →
150
9 Stow age compartment →
150
A Switch panel for:
÷ DYNAMIC SELECT button →
228
c Active Parking Assist →
323
& Switches the stationary heater on/o. →
201
\ Quick vehicle access
ú Fingerprint sensor →
361 Ü
Switches the MBUX multimedia system
on/o. →
361
a Switches sound on/o. →
361
ø Adjusts thevo lume →
361
B £ Hazard warning light system →
172
C Control panel forth e MBUX multimedia system →
368
D Adjusts the steering wheel →
140
ý Switches the steering wheel heater
on/o. →
141
E Control panel:
Driver display →
345
I Active Distance Assist DISTRONIC and
va riable limi ter →
279
F Diagnostics connection →
37
G M Opens the bonnet →
424
H ! Electric parking brake →
262 At
a glance – Cockpit
7 7

1
#! Turn signal lights →
171
2 ï Trailer hitch →
575
3 ä Suspension (red) →
584
ä Suspension (yellow) →
584
4 # Electrical fault →
578
5 Ù Powe r steering (red) →
575
Ù Powe r steering (yellow) →
575
Ù Rear axle steering (red) →
575
Ù Rear axle steering (yellow) →
575
6 6 Restraint system →
573
7 ü Seat belt →
573
8 L Distance warning →
584
9 ! ABS →
586
A h Tyre pressure monitoring system →
589
B ; Engine diagnostics →
578
C å ESP®
OFF →
586 ÷
ESP®
→
586
D % Diesel engine: preglow
E ÿ Coolant temp erature →
578
F Coolant temp erature display
G ! Electric parking brake (yellow) →
581
H ! Electric parking brake (red) →
581
I J Brakes (red) →
581
J Brakes (yellow) →
581
J 8 Reser vefuel wi thfuel /ller 0ap location
indicator →
578
K Fuel le vel
L K High beam →
171
L Low beam →
169
T Standing lights →
169
M R Rear fog light →
170
N H Mercedes-Benz emer gency call system →
588 At
a glance – Indicator and warning lamps (standard)
11
11

1
#! Turn signal lights →
171
2 ü Seat belt →
573
3 L Distance warning →
584
4 6 Restraint system →
573
5 h Tyre pressure monitoring system →
589
6 å ESP®
OFF →
586
÷ ESP®
→
586
7 ! ABS →
586
8 % Diesel engine: preglow
9 ÿ Coolant temp erature →
578
A Coolant temp erature display
B ! Electric parking brake (yellow) →
581
C ! Electric parking brake (red) →
581
D J Brakes (red) →
581
J Brakes (yellow) →
581
E 8 Reser vefuel wi thfuel /ller 0ap location
indicator →
578 F
Fuel le vel
G R Rear fog light →
170
H K High beam →
171
L Low beam →
169
T Standing lights →
169
I H Mercedes-Benz emer gency call system →
588
J ï Trailer hitch →
575
K # Electrical fault →
578
L ; Engine diagnostics →
578
M Ù Powe r steering (red) →
575
Ù Powe r steering (yellow) →
575
Ù Rear axle steering (red) →
575
Ù Rear axle steering (yellow) →
575
N ä Suspension (red) →
584
ä Suspension (yellow) →
584 At
a glance – Indicator and warning lamps (with driver camera)
13
13

1
Sun visors
2 c Switches the front interior lighting on/o. →
178
3 u Switches there ar interior lighting on/o. →
178
4 ; me but ton →
400
5 D Opens/closes the panorama sliding sun-
ro of rear roller sunblind →
108
6 | Switches automatic interior lighting con-
trol on/o. →
178
7 G SOS button →
400
8 Switches theright-hand reading lamp on/o. →
178 9
3 Opens/closes the panorama sliding sun-
ro of →
108
3 Opens/closes the panorama sliding sun-
ro of front roller sunblind →
108
A Indicator lamps:
PASSENGER AIR BAG →
58
REAR SEAT AIR BAG →
62
B Inside rearview mir ror →
186
C Switches the leT-hand reading lamp on/o. →
178 At
a glance – Overhead cont rol panel
15 15

1
B-pillar wi th:
QR code for accessing there scue card →
40
2 Safetyve sts →
437
3 ; me button →
400
G SOS button →
400
4 Tocheck and top up operating 0uids →
481
St arting assis tance →
448
5 Tow- starting or towing away →
451
6 Flat tyre →
439
7 £ Hazard warning light system →
172 8
Fire extinguisher →
438
9 Fuel /ller 0ap with:
information label on fuel type →
235
information label on tyre pressure →
463
QR code for accessing there scue card →
40
A Tow- starting or towing away →
451
B Firs t-aid kit (soT sided) →
438
C TIREFIT kit →
440
D Warning triangle →
437 At
a glance – Emer gencies and breakdowns
21
21

ing state, component loads, maintenance
requ ire-
ments and tech nical events or faults.
Depending on theve hicle equipment, thefo llo w-
ing data are stored:
R operating status of system components, such
as /ll le vels, tyre pressure or battery status
R malfunctions or faults in impor tant system
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag depl oyment or the inter vention
of stability contro l systems
R information on events leading tovehicle dam-
age
In cer tain cases, it may be requ ired tostore da ta
th at wo uld ha veotherwise been used only temp o-
rari ly. This may be the case if theve hicle has
de tected a malfunction, forex ample.
If yo u use services, such as repair services and
maintenance work, stored operational data as
we ll as theve hicle identi/cation number can be
re ad out and used. They can be read out by
service network emplo yees, such as workshops
and manu facturers or third parties, such as break- down services. The same is true in
the case of
wa rranty claims and quality assurance measures.
In general, there adout is per form ed via the legally
prescribed port forth e diagnostics connection in
th eve hicle. The operational data that are read out
document tech nical states of theve hicle or of
individual components and assist in the diagnosis
of malfunctions, compliance with warranty obli ga-
tions and quality impr ovement. Tothat end, these
data, in particular information about component
loads, tech nical events, malfunctions and other
fa ults may be transmitted along with theve hicle
identi/cation number tothe manufacturer. Fur-
th ermore, the manufacturer is subject toproduct
liability. Forth is reason the manufacturer also
uses operational data from theve hicle, forex am-
ple, forre calls. These data can also be used to
ex amine the customer's warranty and guarantee
claims.
Fa ult memories in theve hicle can be reset by a
service outl etor at your requ est as part of repair
or maintenance work. Conv Conv
enience and inf ot
enience and inf otainment functions
ainment functions
Yo u can store con venience settings and individual
settings in theve hicle and change or reset them
at any time.
Depending on theve hicle equipment, this
includes thefo llowing settings, forex ample:
R seat and steering wheel positions
R suspension and climate cont rolsettings
R individual settings, such as interior lighting
Depending on the selected equipment, you can
import data into vehicle inf otainment functions
yo urself.
Depending on theve hicle equipment, this
includes thefo llowing data, forex ample:
R multimedia data, such as music, /lms or pho-
tosfo r playback in an integ rated multimedia
system
R address book data for use in connection with
an integ rated hands-free system or an integ ra-
te d navigation system
R entered navigation destinations
R data about the use of Internet services 42 42
General no
tes

R
R
es
estr traint syst
aint syst em functionality
em functionality When
theve hicle is switched on, a self-test is per-
fo rm ed, during which the6 restraint system
wa rning lamp lights up. It goes out no later than a
few seconds aTer theve hicle is star ted. The com-
ponents of there straint system are then func-
tional. Malfunctioning r
Malfunctioning r
es
estrtraint syst
aint syst em
em A malfunction has occur
red in there straint sys-
te m if:
R the6 restraint system warning lamp does
not light up when theve hicle is switched on
R the6 restraint system warning lamp lights
up continuously or repeatedly during a journey
All v
All v ehicles, ex
ehicles, excep
cep t plug-in h
t plug-in h ybr
ybrid:
id: &
W
WARNING
ARNING Risk of injury due tomalfunc-
tions in there straint system
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as
intended in an accident. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. Plug-in h
Plug-in h
ybr
ybrid:
id: &
D
DAN
AN GER
GER Risk of fatal injuries due to
re straint system malfunctions
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as plan-
ned in an accident. In theeve nt of an acci-
dent, the high-voltage on-board electrical sys-
te m may not be deactivated as intended.
Yo u may su.er an electric shock if youto uch
th e damaged components of the high-voltage
on-board electrical system. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. #
ATer an accident, switch o. theve hicle
immediatel y. F
F
unction of t
unction of t he r
he res
estrtraint syst
aint syst em in an accident
em in an accident How
there straint system works depends on the
se verity of the impact de tected and the apparent
type of accident:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere straint system are de term ined based on the
ev aluation of the sensor values measured at vari-
ous points in theve hicle. This process is pre-e mp-
tive in nature. The triggering/deployment of the
components of there straint system must take
place in good time at the start of the collision.
Fa ctors which can only be seen and measured
aTer a collision has occur red cannot play a deci-
sive role in airbag deployment. Nor do they pro-
vide an indication of airbag deployment.
The vehicle may be deformed signi/cantly without
an airbag being depl oyed. This is the case if only
parts which are relatively easily deformed are
a.ec tedand thera te of vehicle deceleration is 46 46
Occupant saf
ety

When /tting a
child restraint system tothe
re ar seat, obser vetheve hicle-speci/c infor-
mation (/ page 70). F
F
ast
ast ening and adjus
ening and adjusting seat belts ting seat belts If
th e seat belt is pulled quickly or sharpl y,the
seat belt retractor loc ks. The seat belt strap can-
not be pulled out any fur ther.
V
V ehicles wit
ehicles wit h illuminat
h illuminated design seat belt buc
ed design seat belt buc kles:
kles:
th e illuminated seat belt buckle makes fastening
yo ur seat belt easier in cer tain situations, for
ex ample, when light conditions are poor.
% The illumination on the seat belt buckle does
not indicate that the seat belt buckle is func-
tioning cor rectl y. #
Always engage seat belt tongue 2ofthe seat
belt into seat belt buckle 1ofthe cor re-
sponding seat. #
T
To adjus
o adjust t t the seat belt height
he seat belt height: :press and hold
th e belt guide release and slide seat belt out-
let 3 into the desired position. #
T
To eng
o eng ag
age t
e t he seat belt outlet
he seat belt outlet: :let go of the
belt guide release and ensure that seat belt
outlet 3locksinto position. %
A seat belt can only pr ovide the best le vel of
pr otection if it is worncor rectl y.Obser vethe
no tes on fastening the seat belt (/ page 47).
* N
NOOTE
TE Deployment of components of the
re straint system when the front passenger
seat is unoccupied and a seat belt is
buckled When
the front passenger seat is unoccupied
and the seat belt tongue of the seat belt is
engaged in the seat belt buckle, components
of there straint system ma y deployunnecessa-
ri ly on the front passenger side, e.g. the seat
belt tensioner. #
Only buckle the seat belts as intended. %
Obser vethe no tes on st owage areas
(/ page 148).
Information on /tting a child restraint system
and on children tr avelling in theve hicle can
be found in the "Children in theve hicle" sec-
tion (/ page 70). Occupant saf
ety
51 51

If
th e front passenger seat is occupied, alw ays
ensure that:
R the classi/cation of the person in the front
passenger seat is cor rect and the front
passenger airbag is enabled or disabled in
accordance with the person in the front
passenger seat.
R the front passenger seat has been mo ved
as far back as possible.
R the person is seated cor rectl y. #
Both before and during the journe y,
ensure that the status of the front
passenger airbag is cor rect. If
th e front passenger seat is occupied, the classi-
/cation of the person or child restraint system on
th e front passenger seat take s place aTer the
front passenger airbag shuto. self-test. The
PA SSENGER AIR BAG indicator la mps display the
status of the front passenger airbag.
Alw ays obser vethe no tes on the function of the
PA SSENGER AIR BAG indicator lamps
( / page 58). F F
unction of t
unction of t he P
he PASSEN
ASSEN GER AIR BA
GER AIR BAG indicat
G indicat or
or
lam
lam ps
ps Self-t
Self-t
es
est of autt of aut omatic fr
omatic fr ont passeng
ont passeng er airbag shut-
er airbag shut-
o.
o. When theve hicle is switched on, a self-test is per-
fo rm ed during which the two PASSENGER AIR
BAG ON and OFF indicator la mps light up simul ta-
neous ly. The status of
the front passenger airbag is dis-
pla yed via thePA SSENGER AIR BAG indicator
la mp s aTer the self-test:
R ON is lit:
ON is lit: the front passenger airbag may
deploy during an accident.
The indicator lamp goes out aTer 60 seconds.
R ON and OFF ar ON and OFF ar e no
e not lit:
t lit: the front passenger
airbag may deploy during an accident.
R OFF is lit:
OFF is lit: the front passenger airbag is disa-
bled. It will then not be deplo yed in theev ent
of an accident.
If th ePA SSENGER AIR BAG ON indicator la mpis
o., only thePA SSENGER AIR BAG OFF indicator
la mp shows th e status of the front passenger air-
bag. The PASSENGER AIR BAG OFF indicator la mp
may be lit continuously or be o..
If th ePA SSENGER AIR BAG OFF indicator la mp
and the6 restraint system warning lamp light
up simultaneousl y,the front passenger seat may
not be used. Also in this case, do not /t a child
re straint system tothe front passenger seat. Ha ve
th e automatic front passenger airbag shuto. 58 58
Occupant saf
ety