2021 MERCEDES-BENZ S-CLASS SALOON LONG open bonnet

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Before opening the bonnet, allow the engine tocool down. #
Intheev ent of a /re in the engine compartment, keep the bonnet closed and call the /re service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. In doing so, ensu rethat the
coolant temp erature display remains below 120°C.
ÿ *T
here is a malfunction in the engine cooling system. #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. In doing so, ensu rethat the
coolant temp erature display remains below 120°C.
8
Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel.
! Clean the fuel filter *V
Vehicles wit
ehicles wit h diesel engines:
h diesel engines: the fuel /lter is dirty or thewa ter in the fuel /lter needs tobe drained. #
Consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
527
527

Engine
Engine
W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ÿ
Coolant warning lamp (red) *T
he red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
R The engine coolant pump is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120°C. &
W
WARNING
ARNING Risk of burns when opening the bonnet
If yo u open the bonnet in theev ent of an overheated engine or /re in the engine compartment, thefo llowing situa-
tions may occur:
R You may come into contact with hot gases.
R You may come into contact with other escaping hot operating 0uids. #
Before opening the bonnet, allow the engine tocool down. #
Intheev ent of a /re in the engine compartment, keep the bonnet closed and call the /re service. #
Stop immediately in accordance with the tra1c conditions and switch o. theve hicle. Do not continue driving. 578
578
Displ
aymessages and warning/indicator lamps

Tr
ailer operatio n..................................... 494 B
B
Bad w
Bad w eat
eather light
her light ......................................... 174
Bag hook
Bag hook..................................................... 155
Ball neck Ball neck Extending/r etra cting............................. .337
Extending/r etra cting (MBUX multime-
dia system)............................................ 339
B
B AS (Br
AS (Br ak
ake Assis
e Assis t Syst
t System)
em), Brake Assist
System, Braking assistance, Emer gency
braking........................................................ 269
Batt Batt ery
ery
Re mo tecont rol (stationary heater)......... 204
Batt
Batt er
ery (ke
y (ke y)
y)
Re placing................................................. 90
Batt
Batt er
ery (v
y (v ehicle)
ehicle)
Charging (Remo teOnline)...................... 213
No tes..................................................... 444
No tes (starting assis tance and charg-
ing)........................................................ 446
Batt
Batt er
ery oper
y oper ation
ation, Hybrid system.................. 208 Belt airbag
Belt airbag
Activation................................................ 46
Fu nction/no tes....................................... .50
Bicy
Bicy cle r
cle r ack
ack
Load capacit y........................................ 494
Tr ailer operatio n.................................... .342
Bonnet
Bonnet Function (active bonnet)......................... 424
Opening/closing.................................... 424
Boos
Boost pr t pressur
essur e (dr
e (driv
iver display
er display , Sport
, Sport
menu)
menu).......................................................... 347
Boo Boo t lid
t lid
Ac tivating/deactivating the limiter.......... 104
Closing.................................................... 99
HANDS-FREE ACCESS........................... 101
Opening................................................... 98
Opening dimensions.............................. 491
Po we r closing function............................. 99
Switching the separate locking fea-
ture on/o............................................. 103
Unlocking (emer gency key).................... 103
Br Br ak
ak e
e0uid
0uid
No tes..................................................... 489 Br
Br
ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion).......................................................2 71
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 269
Ac tive Brake Assist................................. 290
Ad aptive brake lights.............................. 273
BAS (Brake Assist System).................... .269
Driving tips............................................ 215
EBD (Electronic Brake forc e Distribu-
tion).......................................................2 71
HOLD function....................................... 272
Limited braking e.ect (salt-treated
ro ads)................................................... .215
Ne w/replaced brake linings/brake
discs...................................................... 214
Po st-collision brak e.................................. 64
Ru nning-in no tes.................................... 214
Br Br eakdo
eakdo wn
wn
Assistance overview. ................................ 20
To w- starting........................................... 456
To wing away.......................................... 451
Tr anspo rting theve hicle........................ .453
Wheel chang e........................................ 470 594
594
Index

Ac
tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .............543
Ac tive Stop-and-Go Assist inoperative
See Owner's Manual.............................. 543
Ad aptive Highbeam Assist Plus cur-
re ntly una vailable See Owner's Manual ... 505
Ad aptive Highbeam Assist Plus inop-
erative.................................................. .505
Ambient light warning support inoper-
ative...................................................... 524
Anti-theT alarm system Malfunction .......524
Apply brake and start vehicle toshiT
out of P or N.......................................... 528
Apply brake todeselect P position .......... 528
Apply brake toengage D or R ................. 529
Apply brake toengage R ......................... 529
Apply parking brake topark Visit
wo rkshop ............................................... 529
Au xiliary battery malfunction (red dis-
play message) ....................................... .532 Au
xiliary battery malfunction (white
displ aymessage) .................................... 532
Bonnet not loc ked Close before start-
ing journey............................................. 522
Bonn etnot loc kedSt op immediately
Close bonnet comple tely........................ 523
Bonnet unlatched Pull le ver again to
open...................................................... 522
Cannot start vehicle See Owner's
Manual.......................................... 526, 561
Change steering wheel/ seat position
until 6 dots are visible on the upper
edge of the screen................................. 549
Charging fault Please change charging
me thod See Owner's Manual .................510
Check brake pads See Owner's Man-
ual......................................................... 537
Check dipped-beam setting (leT/
ri ght-side tra1c) .................................... 504 Consult
workshop without changing
th e transmission position ............... 512, 531
Consult workshop without starting the
ve hicle again .......................................... 512
DC charging inoperative Consult
wo rkshop ............................................... 510
DIGITAL LIGHT Functions limited............ 504
Dipped-beam setting (leT/ right-side
tra1c) Manual adjustment on ly.............. 505
Drive malfunction Stop Consult work-
shop ...................................................... 532
Drive malfunction Stop Restart vehicle ... 531
Drive overheated. Drive on with care ......532
Driver camera inoperative See Own-
er's Manual............................................ 549
Driver camera view cur rently restric-
te d See Owner's Manual........................ 548
Fr ont passenger airbag disabled See
Owner's Manual .................................... .498 602 602
Index