2020 MERCEDES-BENZ S-CLASS SALOON LONG charging

using
the jump lead. Start with the donor
ve hicle firs t. #
Start the engine of your ow nve hicle. #
Let the engines runfo r se veral minutes. #
Before disconnecting the jump leads, switch
on an electrical consumer in your ow nve hi‐
cle, e.g. there ar wind owheater or the light‐
ing.
When starting assistance has finished: #
Firstremo vethe jump lead from the ear th
point of your ow nve hicle and the negative
te rm inal of the donor batter y,then remo ve
th e jump lead from the positive conta cts of
bo th vehicles. Alw aysst art with your own
ve hicle firs t. #
Close pr otective co ver2 of positive contact
3 and close co ver1.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Charging
the12 V battery #
Connect the positive conta cts oftheve hicle
and thech arge r with thech arging cable.
St art with theve hicle firs t. #
Connect the negative conta ct ofthech arger
and ear thpoint 4ontheve hicle with the
ch arging cable. Start with thech arge rfirs t. #
Start thech arging process.
When thech arging process is comple te: #
Remo vethech arging cable from ear thpoint
4 ontheve hicle and the negative conta ct
of thech arge rfirs t and then from the posi‐
tive conta cts ontheve hicle and charge r.
Alw aysst art with theve hicle firs t. #
Close pr otective co ver2 of positive contact
3 and close co ver1. Re
placing the 12V battery #
Obser vethe no tes on the12 V battery
(/ page 368).
Mercedes-Benz recommends that you ha vethe
12 V battery replaced at a qualified specialist wo
rkshop, e.g. at a Mercedes-Benz Service
Centre.
Obser vethefo llowing no tes if youwa ntto
re place the battery yourself:
R Alw aysre place a faulty bat tery with a battery
which meets the specific vehicle require‐
ments.
The vehicle is equipped with an AGMtech nol‐
ogy battery (Absorbent Glass Mat) or a li th‐
ium-ion batter y.Fu llve hicle functionality is
only guaranteed with an AGM battery or lith‐
ium-ion batter y.Fo r saf etyre asons,
Mercedes-Benz recommends that you on ly
use bat teries which ha vebeen tested and
appr ovedfo ryo ur vehicle byMercedes-Benz.
R Carryove r de tach able parts, such as vent
hoses, elbow fittings or term inal co vers from
th e battery being replaced.
R Make sure that theve nt hose is al ways con‐
nected tothe original opening on the side of
th e batter y.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape. Breakdown assis
tance 373

Display messages
Possible causes/consequences and M
MSolutions
Û 48 V battery See Owner's
Manual *T
he 48 V on-board electrical sy stem has function restrictions. Comfort functions may be restricted. #
Consult a qualified specialist workshop immediatel y.
Ý
Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, the driver dis‐
play will show theMotor can be started again display message. #
Start the engine. #
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: #
Tryto start the engine again. #
Ifth e engine does not start, consult a qualified specialist workshop.
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. #
Switch off electrical consumers that are not required. 540
Displaymessa ges and warning/indicator lamps

Battery (k
ey)
Re placing................................................ 79
Bat tery (vehicle)
Charging................................................ 372
Charging (Remo teOnline)...................... 19 0
No tes....................................................3 68
No tes (s tarting assis tance and
ch arging)............................................... 370
Re placing...............................................3 73
St arting assis tance................................ 372
Belt see Seat belt
Belt airbag Activation................................................. 41
Fu nction/no tes....................................... 44
Bic ycle rack
Load capacity........................................ 490
Tr ailer operation.................................... 288
Blo wer
see Climate control
BlueTEC see AdBlue ® Boot box
see EAS Y-PA CK boot box
Boot lid Activating/deactivating the boot lid
opening limiter........................................ 93
Closing....................................................88
HANDS-FREE ACCES S............................. 90
Locking separately.................................. 92
Opening................................................... 87
Opening dimensions.............................. 488
Po we r closing function............................ 88
Un locking (emer gency key)..................... 92
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid Notes....................................................4 86
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion).......................................................2 24
Brakes ABS (Anti-lo ckBraking Sy stem).............2 21
Ac tive Brake Assi st................................ 24 3
Ad aptive brake light s............................ .226
BA S (Brake Assi stSystem).................... 222 Driving tips............................................
19 2
EBD (Electronic Brake forc e Distribu‐
tion)....................................................... 224 HOLD function.......................................2 24
Limited braking ef fect (salt-trea ted
ro ads).................................................... 19 2
New/replaced brakepads/brake discs.. 191
Po st-collision brake................................. 56
Ru nning-in no tes.................................... 191
Braking assistance see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions................ 18
To w- starting.......................................... 378
To wing away.......................................... 375
Tr ansporting theve hicle........................ 376
Wheel chang e....................................... .391
Breakdown see Flat tyre C
Calls Mercedes me........................................ 326 Index
571

Head-up display —
Storing settings........ 131
Operating............................................... 131
Outside mir rors — Calling up stored
settings..................................................1 31
Outside mir rors —St oring settings......... 131
Seat — Calling up stored settings........... 131
Seat — Storing settings.......................... 131
St eering wheel — Calling up sa ved
settings.................................................. 131
St eering wheel — Saving settings...........1 31
Memory function in there ar
passenger comp artment
Fu nction................................................. 131
Operating rear seats............................. .132
Operating the front passenger seat
and rear seat........................................ .133
Menus (driver display) Notes....................................................2 92
Mercedes me app Information............................................ 330
Mercedes me calls Arranging a service appointment.......... 328
Calling the Mercedes-Benz Cus tomer
Centre................................................... 327 Calling
the Mercedes-Benz Cus tomer
Centre af ter auto matic accident or
breakdown de tection............................. 327
Consenting todata transfer.................. 328
Information............................................ 326
Making a call via theove rhead con‐
trol panel............................................... 326
Tr ans ferred data.................................... 328
Mercedes me connect Accident and Breakdown Manage‐
ment...................................................... 325
Information............................................ 324
Tr ans ferred data.................................... 326
Mercedes-Benz emer gency call sy stem
Au tomatic emergency call.................... .335
Information............................................ 332
Information on data processing............. 338
Information on data transfer................. 336
Manual emer gency cal l......................... 336
Overview............................................... 334
Self diagnosis........................................ 338
St arting/ending ERA-GLONASS test
mode..................................................... 338
Mercedes-Benz service centre see Qualified specialist workshop Message (driver display)
see Display message
Message memory...................................... 492
Mir rors
see Outside mir rors
Mobile phone Authorising (Remo teParking Assist)..... 279
Fr equencies........................................... 399
Tr ansmission output (maximum )........... 399
Wi reless charging (rear)........................ .150
Mobile phone see Smartphone integration
see Telephone
Model series see Vehicle identification plate
MOExtended tyres.................................... 363
Mo torw ay mode ......................................... 15 6
Moving away
see Driving tips
MULTIBEAM LED Intelligent Light Sy stem......................... 15 5
Multimedia sy stem
Collision de tection (pa rked vehicle).......2 18 588
Index

Re
ar seat
Seat........................................................ 111
Re ar seat belt
St atus display......................................... .46
Re ar seat belt status display ..................... 46
Re ar window
Ro ller sunblin d....................................... 103
Re ar window heater.................................. 172
Re ar-view mir ror
Anti-dazzle mode (automatic)................ 16 9
Re ar-view mir ror
see Outside mir rors
Re cycling
see Take -ba ckof end-of-life vehicles
Re ducing agent
see AdBlue ®
Re frigerator box
Re moving/fitting................................... 14 6
St ow age compartment......................... .147
Using..................................................... 14 5
Re fuelling
Re fuelling theve hicle............................2 06To
pping up AdBlue ®
............................... 210
Re gistration
Ve hicle.................................................... 34
Re mo tecont rol (stationa ryheater/
ve ntilation)
Displa ys................................................. 183
Problems............................................... 184
Re placing the battery............................ 183
Setting................................................... 182
Re mo teOnline
Charging thest ar ter battery.................. 19 0
Cooling/heating theve hicle interior...... 19 0
St arting theve hicle...............................1 90
Re mo teParking Assist
Auth orising a mobile phone...................2 79
Fu nction................................................ 275
Operating............................................... 276
Sy stem limitations................................. 275
Re scue card................................................. 36
Re ser ve
Fu el....................................................... 484
Re sidual heat
Re ar operating unit................................ 176Re
stra int sy stem
Basic instructions forch ildren................ .57
Fu nction in an accident........................... 41
Fu nctionality............................................ 40
Malfunction.............................................. 41
Pr otection................................................ 40
Re duced pr otection.................................40
Self-test................................................... 40
Wa rning lamp......................................... .40
Re versege ar
Inserting................................................ 202
Re versing camera
Ac tivating using GPS (360° Camera)..... 267
Ca re...................................................... 356
Fu nction........................................ 260, 262
Opening the camera co ver (360°
Camera)................................................. 267
Setting (360° Camera)......................... .267
Switching au tomatic operation
on/off (360° Camera)........................... 267
Re versing camera
see 360° Camera
Rims (care)................................................. 356 592
Index

Sound
PRE-SAFE ®
Sound................................... 55
Wheels and tyres...................................3 83
Sound menu Functions overview...............................3 46
Spare wheel see Emer gency spa rewheel
Specific absor ption rate ............................. 26
Speed limit for winter tyres
Setting................................................... 229
St andby mode
Ac tivating/deactivating......................... 219
Fu nction................................................. 219
St anding lights.......................................... 15 2
St art-off assi st
see Optimised acceleration
St art/s top button
Pa rking theve hicle................................2 12
St arting theve hicle...............................1 89
Switching on the po wer supply or
ignition.................................................. 188
St art/s top function
see ECO start/ stop function St
arter battery
Charging (Remo teOnline)...................... 19 0
St arting assi stance
see Jump -sta rt connection
St arting the engine
see Vehicle
St arting-o ffaid
see Hill Start Assist
St ationary heater/ventilation
Displ ays (remo tecontrol)...................... 183
Problems (remo tecontrol)..................... 184
Re placing the battery (remo tecon‐
trol)....................................................... 183
Setting (MBUX multimedia sy stem)....... 182
Setting (remo tecontrol)........................ 182
Switching on/off (control panel )............ 181
ST EER CONT ROL
Fu nction/no tes..................................... 224
Ste ering
Re ar axle steering..................................1 95
Ste ering wheel
Ad justing (electrically).......................... .127
Car e...................................................... 358
Oper ating the memory function.............1 31St
eering wheel heater............................1 28
Ste ering wheel gearshift paddles............ 204
Ste ering wheel heater
coupling toseat heating........................ 12 8
Switching on/of f................................... 12 8
St ow age areas
see Stow age space
St ow age comp artment
Handset (rear)....................................... 137
Lu ggage net hooks................................. 137
St ow age comp artments
see Stow age space
St ow age space
Armrest................................................. 13 6
Centre console..................................... .136
Door...................................................... 13 6
Glo vecompa rtment............................... 13 6
USB ports.............................................. 13 6
Sulphur content......................................... 481
Sur round View
see 360° Camera Index
595

Suspension
Setting the suspension le vel (AIR‐
MATIC)................................................. .258
Suspension see AIRMATIC
Suspension le vel (AIRMATIC)
Setting................................................... 258
SV HC (substances of very high con‐
cern) ............................................................. 34
Switch-off del aytime
Exterio r.................................................. 161
Interior..................................................1 64
Synchronisation function Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 75
Sy stem settings
Overview of the sy stem settings menu. .311 T
Ta ilpipes (care)......................................... .356
Ta ke -back of end-of-life vehicles
Pr otection of the environmen t................. 21Ta
nk content
Ad Blue ®
................................................ 485
Fu el.......................................................4 84
Re ser ve(fuel)........................................ 484
Te ch nical data
Axle load (trailer operation)...................4 91
Fa stening points (trailer hitch).............. 490
Information............................................ 398
Mounting dimensions (trailer hitch)....... 490
No tes (trailer hitch)............................... 489
Overhang dimension (trailer hitch)........4 90
Ra dio operating permits........................ 400
To ngue weight...................................... .490
To wing capacity (trailer operation)........ 490
Te lephone
Auth orising a mobile phone (Remo te
Pa rking Assist)...................................... 279
Connecting a mobile phone (Passk ey)... 324
Connecting a mobile phone (Secure
Simple Pairing)...................................... 324
Fu nctions in thete lephone men u.......... 324
No tes..................................................... 321
Operating modes...................................3 23
Te lephone menu overview..................... 323 Wi
reless charging (mobile phone in
th ere ar)................................................ 15 0
Te lephony operating modes
Blue tooth ®
Te lephony........................... .323
Making calls in theve hicle....................3 23
Te mp erature .............................................. .172
Through-loading feature
Locking................................................. .139
Through-loading feature in there ar
comp artment
Opening................................................. 13 8
TIREFIT kit Declaration of conformity........................ 32
Storage location.................................... 363
Using.....................................................3 64
To ll sy stem
Wi ndsc reen............................................ 171
To ngue weight .......................................... .490
To ol
see Vehicle tool kit
To pTe ther.................................................... 68 596
Index

Wi
per blades
Ca re...................................................... 356
Re placing...............................................1 65
Re placing (MAGIC VISION CONTROL).... 167
Wire lesscharging
Fu nction/no tes..................................... 14 8
Mobile phone......................................... 14 9
Mobile phone (rear)...............................1 50
Wire lessvehicle comp onents
Declaration of con form ity....................... .26
Speci fic absor ption rate.......................... 26
Wo rkout prog ram
Overview............................................... 12 3
Wo rkshop
see Qualified specialist workshop 602
Index