2021 MERCEDES-BENZ S-CLASS SALOON LONG ECU

Br
Br
ak
ak es
es Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
!
Parking brake See Owner's
Manual *T
heyellow ! indicator lamp is lit. The electric parking brake is malfunctioning.
T T o apply
o apply :
: #
Switch theve hicle o. and switch it back on #
App lythe electric parking brake manually (/ page 264).
If it is not possible toapply the electric parking brake: #
Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
*T heyellow ! indicator lamp and there d! indicator lamp are lit. The electric parking brake is malfunctioning.
T
T o r
o r elease:
elease: #
Switch theve hicle o. and switch it back on #
Release the electric parking brake manually (/ page 264).
or #
Release the electric parking brake automatically (/ page 263).
If it is still not possible torelease the electric parking brake: #
Do not continue driving. Consult a quali/ed specialist workshop.
*T heyellow ! indicator lamp is lit and there d! indicator lamp is 0ashing. The electric parking brake is malfunc-
tioning. Display messages and
warning/indicator lamps
533
533

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
The electric parking brake could not be applied or released. #
Switch theve hicle o. and switch it back on
T
T o apply
o apply :
: #
Release and then apply the electric parking brake manually (/ page 264).
T
T o r
o r elease:
elease: #
Apply and then release the electric parking brake manuall y.
If it is not possible toapply the electric parking brake or there d! indicator lamp continues to0ash: #
Do not continue driving. Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
*T heyellow ! indicator lamp is lit and there d! indicator lamp 0ashes for appr oximately ten seconds aTer the
electric parking brake has been applied or released. It then remains lit or goes out. The electric parking brake is mal-
functioning.
If t If t he st
he st at
ate of c
e of c harg
harge is t
e is t oo low
oo low :
: #
Char gethe 12 V batter y.
T
T o apply
o apply :
: #
Apply the electric parking brake manuall y.534
534
Display message
s andwarning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
If it is not possible toapply the electric parking brake: #
Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
T
T o r
o r elease:
elease: #
Ifth e conditions for automatic release are ful/lled and the electric parking brake is not released automaticall y,
re lease the electric parking brake manually (/ page 264).
If it is still not possible torelease the electric parking brake: #
Do not continue driving. Consult a quali/ed specialist workshop.
!
Release parking brake *T
hered! indicator lamp is 0ashing.
The electric parking brake is applied while you are driving:
R A condition for automatic release of the electric parking brake has not been ful/lled (/ page 263).
R You are per form ing emer gency braking using the electric parking brake (/ page 264). #
Check the conditions for automatic release of the electric parking brake. #
Release the electric parking brake manuall y. Display messages and
warning/indicator lamps
535
535

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ú
System er rorwa rning lamp *T
he red system er rorwa rning lamp is lit while theve hicle is in a state of operational readiness õ.
There is a malfunction in the drive system. #
Notethe messages on the driver's displa y.
#
Electrical fault warning lamp *T
hered electrical fault warning lamp is lit.
There is a fault with the electrics. #
Notethe messages on the driver's displa y. V
V
ehicle
ehicle W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational or is swivelling. &
W
WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. Display messages and
warning/indicator lamps
575
575

Information...........................................
.125
Moving the front passenger seat into
th ech au.eur position........................... .126
Moving the front passenger seat into
th e normal position................................ 130
Child safe
Child safe ty lock
ty lock
Re ar door................................................ .85
Re ar side wind ows................................... 86
Child seat
Child seat, Occupant saf ety
Appro val categories................................. 71
At tach ing (no tes)..................................... .70
Basic instructions.................................... 65
Fr ont passenger seat (no tes).................... 82
Fr ont passenger seat (without auto-
matic airbag shuto.)............................... .82
ISOFIX/i-Size (/tting)...............................74
No tes on risks and danger s...................... 66
Re ar airbag............................................. .77
Re commendations forch ild restraint
systems................................................... 69
Seats suitable for belt-secured child
re straint systems..................................... 79
Seats suitable for i‑Size child restraint
systems................................................... 74 Seats suitable
for ISOFIX child
re straint systems..................................... 72
Securing on the co-driver seat..................83
Securing on there ar seat......................... 81
To pTe ther................................................ 76
Childr Childr en
en
Av oiding dangers in theve hicle............... .66
Basic instructions.................................... 65
Chock
Chock, Chock Storage location..................................... 469
City lighting
City lighting.................................................. 174
Climat Climat e contr
e contr ol
ol
Ac tivating/deactivating.......................... 191
Ac tivating/deactivating (rear operat-
ing unit)................................................. 191
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 192
Ac tivating/deactivating the frag rance
system................................................... 194
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 193
Air-recirculation mode (with /ne parti-
cle pre/lter)...........................................1 93Au
tomatic control................................. .192
Calling up the air conditioning menu....... 191
Defrost.................................................. 192
Demisting the windscreen
(THERMOTRONIC).................................. 189
Demisting windo ws................................ 193
Fi ne particle status displa y..................... 191
Fr ont air vents........................................ 205
Glo vebox air vent.................................. 207
Immediate pre-entry clima tecont rol....... 200
Information on the windscreen heater.... 196
Inserting/re movingthe 0acon (fra-
gr ance system)...................................... 195
Ionisatio n.............................................. .194
No te...................................................... 189
Pre-entry climate control at depa rture
time....................................................... 198
Pre-entry climate control when the
ve hicle is unloc ked................................. 196
Re ar air vents......................................... 206
Re ar operating unit................................ 190
Re sidual heat......................................... 194
Re sidual heat (rear operating unit)......... .194
Setting (MBUX multimedia system)......... 191
Setting the air distribution
(THERMOTRONIC).................................. 189 596 596
Index

Switching on
/o..................................... 351
Headlam
Headlamp p0ashing
0ashing ........................................ 171
High beam
High beam Activating/deactivating.......................... 171
High-pr
High-pr essur
essure cleaner (car
e cleaner (car e)
e)........................ 430
High-v
High-v olt
oltag
age batt
e batt ery
ery, Battery (high-voltage
on-boa rdelectrical system)
Char geleve l displa y............................... 258
Charg ing at time of departure................ 387
Charging cable control panel.................. 247
Charging duration.................................. 491
Con/guring weekly pro/le...................... 387
Connection types................................... 491
Ending thech arging process (alternat-
ing cur rent, mode 2/3).......................... 253
Ending thech arging process (direct
cur rent, mode 4).................................... 257
Energy 0ow displa y................................. 388
General no tes on chargin g.................... .241
Indicator lamps on vehicle soc ket........... 248
Maximum charging cur rent (mains
soc ket).................................................. 246
No tes on charging (charging station,
mode 3)................................................ .245 No
tes on charging (fast charging sta-
tion, mode 4)......................................... 246
No tes on charging (mains soc ket,
mode 2)................................................. 244
No tes on charging (wallbox, mode 3)...... 245
Ra nge.................................................... 491
St arting thech arging process (alter-
nating cur rent, mode 2/3)..................... 250
St arting thech arging process (direct
cur rent, mode 4).................................... 254
St ow ing thech arging cable.................... 241
Ty pe....................................................... 491
Vo ltage types......................................... 491
High-v High-v olt
oltag
age on-boar
e on-boar d electr
d electrical syst
ical syst em
em
Indicator lamps on vehicle soc ket........... 248
Hill St
Hill Star
art Assist
t Assist, Starting-o. aid................... .273
HOLD function
HOLD function, Driving system, Rollaway
pr otection
Fu nction/no tes...................................... 272
Switching on/o..................................... 272
Home scr
Home scr een (centr
een (centr al displa
al display)
y)
Overview................................................ 367
Hybr
Hybr id syst
id syst em
em, Emer gency shuto.
Manual swit ch-o................................... .209 I
I
i-Size c
i-Size c hild seat secur
hild seat secur ing syst
ing system
em
Fi tting...................................................... 74
Seats suitable for attaching...................... 74
Identi/cation
Identi/cation plate
plate
Engine................................................... 480
Ve hicle.................................................. 480
Immediat Immediat e pr
e pre-entr
e-entr y climat
y climat e contr
e control
ol............ .200
Immobiliser
Immobiliser ..................................................1 15
Im
Im plied w
plied w arr
arranty
anty
Ve hicle..................................................... 40
Im
Im port
port er addr
er addr esses
esses
Wi reless components...............................36
In-Car
In-Car O1ce
O1ce, Online services
Fe atures................................................ 406
Individual dr
Individual dr iv
ive pr
e pr ogr
ogram
am
Con/guring........................................... .228
Selecting............................................... 228
Int
Int ellig
ellig ent Light Syst
ent Light Syst em
em
Ac tivating/deactivating.......................... 175
Ac tive headlamps................................... 172
Ad aptive Highbeam Assist Plu s............... 176
Assistance functions.............................. 174 608
608
Index

Bad
weather light................................... 174
City lighting........................................... .174
Cornering light....................................... 173
Fo g light (enhanced).............................. 173
Mo torw ay mode.................................... .173
Overview................................................ 172
To pog raphical compensation.................. 174
Int Int er
erior lighting
ior lighting, Lamp, Lighting, Reading
lamp Adjusting............................................... 178
Ambient lighting.................................... .179
Re ading lamp......................................... 178
Switch-o. delay time.............................. 180
Int
Int er
erior pr ot
ior pr otection
ection
Fu nction................................................ 116
Priming/deactivating............................. 117
Ionisation
Ionisation Activating/deactivating (MBUX multi-
media system)....................................... 194
ISOFIX c
ISOFIX c hild seat anc
hild seat anc hor
hor
Seats suitable for attaching...................... 72
ISOFIX c
ISOFIX c hild seat secur
hild seat secur ing syst
ing system
em
Fi tting...................................................... 74 J
J
Jack
Jack Declaration of conformity......................... 36
Storage location..................................... 469
Jum Jum p-st
p-st ar
art connection
t connection ,St arting assis tance
Gene ral no tes........................................4 46 K
K
K
K e
ey
y
Ac oustic locking veri/cation signal.......... .89
Battery..................................................... 90
Deacti vating a function............................ 90
Emer gency key......................................... 90
Energy consum ption................................ 90
Fu nction overview.................................... 88
Ke yring attachment................................. 90
Problem................................................... 92
Unlocking setting..................................... 89
KEYLESS-GO KEYLESS-GO Deactivating a function............................ 90
Locking/unlocking theve hicle................. 94
Problem................................................... 95
Unlocking setting.................................... .89Kic Kic
kdo
kdo wn
wn, Acceleration
Using..................................................... 234
Knee airbag
Knee airbag.................................................... 53 L
L
Language
Language, System settings Notes..................................................... 386
Setting................................................... 386
Light adjus
Light adjustment tment
Low beam (d riving abroad).................... .169
Light switch
Light switch Overview................................................ 169
Lights
Lights Active headlamps................................... 172
Ad aptive Highbeam Assist Plu s............... 176
Au tomatic driving lights......................... .170
Bad weather light................................... 174
City lighting........................................... .174
Combination switc h............................... 171
Cornering light....................................... 173
Driving abroad (low beam light adjust-
ment)..................................................... 169
Fo g light (enhanced).............................. 173
Hazard warning lights............................. 172 Index
609 609

Headla
mp0ashing................................ .171
High beam............................................. 171
Intelligent Light System.......................... 172
Light switch........................................... 169
Low beam.............................................. 169
Mo torw ay mode.................................... .173
Pa rking lights......................................... 169
Re ar fog light......................................... 169
Re sponsibility for lighting systems.......... 169
Setting low beam................................... 178
Setting theex terior lighting switch-o.
delay time.............................................. 178
St anding lights....................................... 169
Switching the Intelligent Light System
on/o....................................................1 75
Switching the locator lighting on/o.......1 78
Tu rn signal indicator............................... 171
Limit Limit er
er, Driving system, Limiting speed,
Maximum design speed Function................................................ 275
Pa ssive mode......................................... 275
Pe rm anent setting.................................. 276
St oring a speed...................................... 279
Switching o./deactivating.................... .279
Switching on/activating......................... 279 System limits......................................... 275
Liv
Liv e
eTr
Tra1c
a1c Inf
Infor
ormation
mation
Switching the tra1c information dis-
play on................................................... 394
Loading
Loading Bag hook............................................... 155
Notes..................................................... 148
Ro of luggage rack .................................. 158
Loading guidelines Loading guidelines....................................... 148
Loads Loads Securing................................................ 148
Locat
Locat or lighting
or lighting
Ac tivating/deactivating.......................... 178
Loc
Loc king/unloc
king/unloc king
king
Ad ditional door loc k................................. 92
Emer gency key......................................... 96
KEYLESS-GO............................................ 94
Switching the automatic locking fea-
ture on/o.............................................. .95
Unlo cking/opening the doors from
th e inside................................................. 93
Lo Lo w beam
w beam
Ac tivating/deactivating.......................... 169
Light adjustment (driving abroad)........... 169 Setting................................................... 178
L
L ugg
ugg age
age
Ne t hoo ks.............................................. 152
Securing................................................ 148
L
L ugg
ugg ag
age ne
e ne t hooks
t hoo ks....................................... 152 M
M
MA
MA GIC VISION C
GIC VISION C ONTR
ONTROL
OL
Wi ndsc reen wiper s................................. 183
Malfunction
Malfunction Restraint system..................................... .46
Manoeuvr
Manoeuvr ing assist
ing assistance
ance
Cross tra1c warning.............................. 331
Drive Away Assist................................... 330
Manoeuvring brake function................... 332
Manoeuvr
Manoeuvr ing assist
ing assistant
ant
Ac tivating/deactivating.......................... 333
Manoeuvr
Manoeuvr ing br
ing brak
ake function
e function , Protection
against collision...........................................3 32
Manual
Manual g
gear
ear shiTing
shiTing
Ac tivating/deactivating.......................... 234
Map
Map Displaying online map contents.............. 394 610
610
Index