2021 MERCEDES-BENZ S-CLASS SALOON LONG warning

Ext
Ext
ending and re
ending and retr
tracting t
acting t he ball nec
he ball nec k full
k fully electr
y electr i-
i-
call
call y (multimedia syst
y (multimedia syst em)
em) &
W
WARNING
ARNING Risk of accident due tothe ball
neck not being engaged
If th e ball neck is not engaged, the trailer may
come loose. #
Always engage the ball neck as descri-
bed. *
N
NOOTE
TE Damage tothe all-electric trailer
hitch due toadditional pressure The all-elect
ric trailer hitch could be mechani-
cally damaged byapplying additional pressure
when the ball neck is being extended or
re tracted. #
Do not make the ball neck extend/
re tract faster byapplying additional pres-
sure. R
R
eq
eq uir
uir ements:
ements:
R The vehicle is secured against rolling away.
R The swivel range is clear. R
The trailer cables or ada pter plugs ha vebeen
re mo ved.
Multimedia system: 4 © 5
ß 5
y
Ext
Ext ending t
ending t he ball nec
he ball nec k full
k fully electr
y electr ically
ically #
Select Ü.
The Trailer coupling in motion display mes-
sage will appear on the driver's displa y.
The ball neck will extend fully electricall y. #
Wait until the ball neck has loc ked in place.
If th e ball neck is not securely loc ked in place, the
message Check trailer hitch lock will appear on
th e driver's displa y.
R
R e
etr
tr acting t
acting t he ball nec
he ball nec k full
k fully electr
y electr ically
ically #
Select Ü.
The Trailer coupling in motion display mes-
sage will appear on the driver's displa y.
The ball neck will retract fully electricall y. #
Wait until the ball neck has loc ked in place. If
th e ball neck is not securely loc ked in place, the
message Trailer coupling Check lock will appear
on the driver's displa y.
Obser vethe information about the displa yson the
inst rument cluster:
R Indicator and warning lamps (/ page 571)
R Display message s (/page 495) Coupling up/uncoupling a tr
Coupling up/uncoupling a tr
ailer
ailer &
W
WARNING
ARNING Risk of injury due toach ange
in vehicle le vel
V
V ehicles wit
ehicles wit h lev
h level contr
el contr ol:
ol:theve hicle le vel
may be changed unintentionall y,e.g. by ot her
people. If you couple or uncouple the trailer
during this time, you may become trapped. In
addition, other people could become trapped
if parts of their body are between theve hicle
body and the tyres or underneath theve hicle.
Obser vethefo llowing when coupling or
uncoupling: Driving and parking
339
339

#
Do not open or close any doors or the
boot lid. #
Do not initiate the le vel control and do
not operate theDY NAMIC SELECT
switch. #
Do not lo ckor unlock theve hicle. R
R
eq
eq uir
uir ements:
ements:
R The ball neck is extended and engaged in a
securely loc ked position.
Tr ailers with a 7-pin plug can be connected tothe
ve hicle with thefo llowing adap ters:
R Adapter plug
R Adapter cable
The trailer will be cor rectly de tected bytheve hi-
cle only if thefo llowing conditions are met:
R The trailer is connected cor rectl y.
R The trailer lighting system is in working order.
The functions of thefo llowing systems will be
a.ec tedbya cor rectly connected trailer:
R ESP ®
trailer stabilisation R
Active Lane Keeping Assist
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assist
R Drive Away Assist
R Cross tra1c warning
R Manoeuvring brake function
R Reversing camera
R 360° camera
R AIRMATIC
R E-AC TIVE BODY CONTROL
Coupling up a tr
Coupling up a tr ailer
ailer
* NO
NOTE
TEDamage tothe star ter battery due
to full dis charge Charging
the trailer battery using the po wer
supply of the trailer can damage the star ter
batter y. #
Do not use theve hicle's po wer supply to
ch arge the trailer batter y. #
Remo vethe co ver cap from the ball head and
store it in a safe place. #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. #
Open the soc ket cap. #
Inse rtthe plug with lug 1ingroo ve 3 on
th e soc ket. #
Turn bayonet coupling 2totheright as far as
it will go. #
Let the cap engage. #
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). 340
340
Driving and parking

#
Make sure that the cable is alw ays slack for
ease of mo vement during cornering.
Under thefo llowing conditions, a message may
appear on the driver's display even if the trailer
has been connected cor rectl y:
R LEDs ha vebeen ins talled in the trailer lighting
system.
R The cur rent has fallen below the trailer lighting
system's minimum cur rent (50 mA).
% Accessories can be connected tothe perma-
nent po wer supply up to180 W and tothe
po we r supply that is switched on via the igni-
tion loc k.
U
U ncoupling a tr
ncoupling a tr ailer
ailer &
W
WARNI NG
ARNI NGRisk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an engaged
overrun brake. *
N NOOTE
TE Damage when uncoupling in a state
of ove rrun Uncoupling in a state of
overrun can damage
th eve hicle. #
Do not uncouple trailers with an engaged
overrun brake. &
W WARNING
ARNING Risk of becoming trapped when
disconnecting the trailer cable
V
V ehicles wit
ehicles wit h lev
h level contr
el contr ol syst
ol system:
em:Thevehicle
may lo wer when the trailer cable is disconnec-
te d.
This could result in you or other people
becoming trapped if your or their limbs are
between theve hicle body and the tyres or
underneath theve hicle. #
Make sure that nobody is underneath the
ve hicle or in the immediate vicinity of the wheel ar
ches when you disconnect the
trailer cable. *
N
NOOTE
TE Damage tothere ar bumper from
ins talling adap ter cables or adap ter plugs The
following parts could be damaged when
swiveling the ball neck fully electricall y:
R Bumper
R Adapter cable
R Adapter plug #
Alwaysre mo vethe adap ter cable or
adap ter plug before swiveling the ball
neck fully electricall y. #
Secure the trailer against rolling away. #
Disconnect the electrical connection between
th eve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver cap on the ball head.
% T
Tr
railer
ailer s wit
s wit h LED lighting:
h LED lighting: aTer uncoupling the
traile r,switch theve hicle on and then o.
again. Driving and parking
341
341

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

th
e tra1c situation. This could also cause you
to lose control of theve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle in accordance with the tra1c
conditions and operate the equipment
with theve hicle stationar y.Obser
vethe legal requ irements forth e country in
which you are cur rently driving when opera ting
th e driver's displa y. Scr
Scrolling on t
olling on t he menu bar
he menu bar 1
Back button
2 Main menu button
3 Touch Control
The content on the driver's display is controlled
using the control elements on the leT side of the
stee ring wheel. Touch Control 3is used tonavi-
ga te in a vertical and horizontal direction byswip- ing with one /nger
.Con/rm the selection by
pressing theTo uch Control.
% Tooperate Touch Control 3inthe most
e.ective way,use the tip of your thumb if pos-
sible. You can also set the sensitivity of the
To uch Control on the central display . #
Brie0y press main menu button 2. #
Select a menu byswiping tothe leT or right
on Touch Control 3. #
Press Touch Control 3tocon/rm. Dr
Dr
iv
iver displa
er displa y menus
y menus N
No
ot
tes on menus on t
es on menus on t he dr
he driv
iver's display
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
th e tra1c situation. This could also cause you
to lose control of theve hicle. 346 346
Driver displ
ay

Y
Pedest rian de tection (only on assistant dis-
play)
Ç Active Parking Assist is available
(/ page 323)
È Active Parking Assist has recognised a
parking space (/ page 323)
é Parking Assist PARKTRONIC deactivated
(/ page 320) ç
Active Distance Assist DISTRONIC
(/ page 276)
Ò Speci/ed distance forAc tive Distance
Assist DISTRONIC (/ page 276)
æ Active Brake Assist switched o.
(/ page 294)
Ä Active Brake Assist impaired or not func-
tioning (/ page 294)
Ø Active Steering Assist (/ page 284)
± Active Lane Change Assist (/ page 288)
ð Active Lane Keeping Assist (/ page 302)
Z Active Blind Spot Assist (only on assistant
display) (/ page 300)
õ Plug‑in hybrid operation activated
° Haptic accelerator pedal
(/page 221, 226, 224)
ò Sound generator inoperative (/ page 508)
è ECO start/stop function (/ page 219)
ë HOLD function (/ page 272)
_ Adaptive Highbeam Assist Plus
(/ page 176) ð
Maximum permissible speed exceeded (for
cer tain countries only)
¬ Active Stop-and-Go Assist (/ page 284)
Ò Slippery road sur face warning
V V ehicles wit
ehicles wit h
hTr
Tra1c
a1c Sign Assist:
Sign Assist: detected instruc-
tions and tra1c signs (/ page 294) Driver display
353
353

N
N
o
ot
tes on oper
es on oper ating safe
ating safety
ty
Fo ryo ur ow n sa fety, alw ays obser vethefo llowing
points when operating mobile communications
equipment and especially your voice control sys-
te m:
R Obser vethe legal requ irements forth e coun-
try in which you are driving.
R Ifyo u use thevo ice control system in an emer-
ge ncy your voice can change and your tele-
phone call, e.g. an emer gency call, can
th ereby be unnecessarily dela yed.
R Familiarise yourself with thevo ice control sys-
te m functions before starting the journe y.
% The v The v oice contr
oice contr ol syst
ol system does no
em does no t r
t replace
eplace
t
t he Owner's Manual.
he Owner's Manual.
The ans wersfrom thevo ice control system do
not pr ovide the comple tescope of informa-
tion contained in the Owner's Manual. The
vo ice control system does also not give
de tailed warning or damage information. Yo u
can getthe full scope of information about
th e function and safe operation of the sys-
te ms and components in theve hicle in the
Owner's Manual. Oper
Oper
ation
ation F
F
unction of t
unction of t he MBUX V
he MBUX Voice Assist
oice Assistant
ant Using
the MBUX Voice Assistant, vehicle func-
tions and various areas of the MBUX multimedia
system can be operated byvoice input, e.g. navi-
ga tion or telephone. The MBUX Voice Assistant is
operational about half a minute aTer switching on
th eve hicle and can be operated from all seats
(depending on the optional equipment). Conducting a dialogue Conducting a dialogue
R
R
eq
eq uir
uir ements:
ements:
R Voice activation must be switched on in the
multimedia system (/ page 355).
R For cor rections during output, theVoice
barge-in option must be activated in the multi-
media system (/ page 355).
St
St ar
arting a dialogue
ting a dialogue #
Say Hey Mercedes toactivate the MBUX
Vo ice Assistant.
or #
Press the£ button on the multifunction
steering wheel.
A blue wave appears in the MBUX multimedia
system. The dialogue can be star ted.
Fo rth e dialogue with the MBUX Voice Assistant,
yo u can use comple tesentences of collo quial lan-
guage as voice commands. Voice activation can
also be combined directly with a voice command,
e.g. Hey Mercedes, how warm is it outside?
Int Int err
err up
upting t
ting t he dialogue
he dialogue #
During the dialogue say Pause.
The dialogue is inter rupted. #
Say Hey Mercedes tocontinue the dialogue.
Corr
Corr ecting an entry
ecting an entry #
During the dialogue say Correction.
or #
Inter rupt the system's voice output.
Changing dialogue lev
Changing dialogue lev el
el #
During the dialogue, say Back.
The MBUX Voice Assistant jumps back tothe
pr ev ious dialogue step. 354
354
MBUX
Voice Assistant

Ov
Ov
er
ervie
vie w and oper
w and oper ation
ation N
No
ot
tes on t
es on t he MBUX multimedia syst
he MBUX multimedia syst em
em&
W
WARNING
ARNING Risk of dist raction 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
th e tra1c situation. This could also cause you
to lose control of theve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle in accordance with the tra1c
conditions and operate the equipment
with theve hicle stationar y. Yo
u must obser vethe legal requ irements forthe
count ryin which you are cur rently driving when
ope rating the multimedia system.
Depending on the equipment, the scope of func-
tion and product designation of your MBUX multi-
media system may di.er from the description and images in
this Owner's Manual. Forex ample,
ro ute guidance with augmented reality is not avail-
able in all equipment variants.
* N NOOTE
TE Increased sur face tempe rature due
to direct sunlight on the central display The sur
face of the central display is very dar k.
If th e display is exposed todirect sunlight, the
sur face can become very hot. #
Ifth e central display has been exposed
to direct sunlight, allow it tocool down
before touching it for a long time. Ov
Ov
er
ervie
vie w of t
w of t he MBUX multimedia sy
he MBUX multimedia sy st
stem
em 1
Touch Control and control panel forth e MBUX
multimedia system
MBUX stands for Mercedes-Benz User Experi-
ence.
• Operating Touch Control
2 Central display with touch functionality
• Home screen overview
• Operating theto uchscreen
3 Control panel with:
ú Fingerprint sensor
Ü Switches the MBUX multimedia system
on or o. MBUX multimedia system
361 361