2021 MERCEDES-BENZ E-CLASS ESTATE coolant

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ÿ
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop immediately in accordance with the tra1c conditions and switch o. theve hicle. &
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. #
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. Display messages and
warning/indicator lamps
475
475

Ins
Ins
tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown.
Indicat
Indicat or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 519)
ü Seat belt (/ page 519)
_ Reduced po wer (/ page 520)
Ú System error (/ page 520)
# Electricalfault (/ page 520)
ï Trailer hitch (/ page 521)
Ù Powe r steering (/ page 521) ÿ
Coolanttemp erature (/ page 523)
; Engine diagnostics (/ page 523)
% V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 523)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 523)
! Electric parking brake (red)
(/page 526)
! Electric parking brake (yellow)
(/page 526)
J Brakes (yellow) (/ page 526)
J Brakes (red) (/ page 526)
L Distancewarning (/ page 528)
Ó Active Brake Assist (/ page 528)
ê Active Brake Assist (/ page 528)
ä AIR BODYCONTROL (/ page 528)
! ABS (/page 529)
÷ ESP®
(/ page 529)
å ESP®
OFF (/ page 529) h
Tyre pressure monitoring system
(/ page 532)
T Standing lights (/ page 142)
L Low beam (/ page 142)
K High beam (/ page 144)
#! Turn signal lights (/ page 144)
R Rear fog light (/ page 142) 518 518
Display message
s andwarning/indicator lamps

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. Displ
aymessages and warning/indicator lamps
523
523

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Notethe messages on the instrument displa y.
If t
If t he coolant t
he coolant t em
emper
per atur
atur e displa
e displa y is at t
y is at the low
he lower end of t
er end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Consult a quali/ed specialist workshop.
If t
If t he coolant t
he coolant t em
emper
per atur
atur e displa
e displa y is at t
y is at the upper end of t
he upper end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Exit theve hicle and keep a safe distance from it until the engine has cooled down. #
Check the coolant le vel (/ page 380). #
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
Coolant warning lamp (yel-
low) *T
he yellow coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The charge air, transmission oil or battery cooling is faulty
R The radiator shutters are bloc ked or defective #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. 524
524
Displ
aymessages and warning/indicator lamps

Conv
Conv
enience opening
enience opening..................................... 95
Coolant (engine)
Coolant (engine) Levelch eck............................................ 380
No tes..................................................... 441
Cooling
Cooling
see Climate control
Cop
Cop yr
yright
ight....................................................... 42
Cor
Cor ner
nering light
ing light............................................. 145
Cr
Cr oss
oss tr
tra1c
a1c (w
(war
arning)
ning)
see Manoeuvring assis tance
Cr
Cr oss
oss Tr
Tra1c
a1c Alert
Alert........................................ 284
Cr
Cr osswind Assist
osswind Assist
Fu nction/no tes...................................... 233
Cr
Cr uise contr
uise contr ol
ol
Ac tivating............................................... 239
Buttons.................................................. 239
Calling up a speed................................. 239
Deactivating........................................... 239
Fu nction................................................ 238
Maximum design speed.......................... 195
Re quirements:....................................... 239
Selecting............................................... 239
Setting a speed...................................... 239 St
oring a speed...................................... 239
System limitations.................................. 238 D D
Dashcam
Dashcam Notes..................................................... 348
Selecting a USB device......................... .349
St arting/stopping a video recording...... .349
Dat
Dat a acq
a acq uisition
uisition
Ve hicle..................................................... 39
Dat Dat a pr ot
a pr otection r ection r ights
ights
Data storag e............................................ 42
Dat
Dat a st
a st or
orage
age
Data pr otection rights............................. .42
Electronic control units............................ 39
Online services....................................... .41
Ve hicle..................................................... 39
Deactiv
Deactiv ating t ating the alar
he alar m (AT
m (ATA)
A)........................ .103
Dealer
Dealer ship
ship
see Quali/ed specialist workshop
Declar
Declar ation of conf
ation of conf or
ormity
mity
Elect romagnetic compatibilit y.................. 28
Jack......................................................... 34 Speci/c absor
ption rate........................... 28
TIREFIT kit................................................ 35
Wi reless vehicle component s................... 28
Decor Decor ativ
ative f
e foil (cleaning ins
oil (cleaning instr tructions)
uctions)........... 384
DeN
DeNOx ag Ox ag ent
ent
see AdBlue ®
Des
Destination entry tination entry
Entering a POI or addres s....................... 344
Det
Det ecting inatt
ecting inatt entiv
entiveness
eness
see ATTENTION ASSIST
Diagnos
Diagnostics connection tics connection.................................. 35
Diesel
Diesel Low outside tempe ratures...................... 435
No tes..................................................... 435
Digit
Digit al Owner's Manual
al Owner's Manual............................ 20, 21
Digit
Digit alTV
al TV
see TV
Dingh Dingh yto
y to wing wing
see Tow- bar system
DIRECT SELECT lev
DIRECT SELECT lev er
er
Engageing reve rsege ar.......................... 200
Engaging drive position.......................... 201
Engaging neutral................................... .200 Index
541
541

Engaging park position automaticall
y...... 201
Fu nction................................................ 199
Selecting park position........................... 201
Displa
Displa y (car
y (care)
e)............................................... 387
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Home sc reen......................................... 328
Operating.............................................. 329
Displa
Displa y (on-boar
y (on-boar d com
d comput
puter)
er)
Displa yson the inst rument displa y......... 301
Displa
Displa y in t
y in the windscr
he windscr een
een
see Head-up display
Displa
Displa y message
y message
Calling up (on-board computer).............. 449
No tes..................................................... 449
Displa
Displa y messag y messag es
es
ç - - - km/h.................................... .486
È - - - km/h..................................... 485
h - - - km/h..................................... 485
# 12 V battery See Owner's Man-
ual......................................................... 504
Û 48 V battery See Owner's Man-
ual......................................................... 506 ò
Acoustic presence indicator
inoperative............................................ .463
: Active Light System inoperative..... 457
¯ AdBlue system fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km.................................................. 514
¯ AdBlue system fault Emer gency
op. in XXX miles See Owner's Manual.... 513
¯ AdBlue system fault Engine
start not possible................................... 514
¯ AdBlue system fault See Own-
er's Manual............................................ 513
5 Add 1 litre engine oil when next
re fuelling ............................................... 515
é ATTENTION ASSIST inoperati ve..... 484
é ATTENTION ASSIS T:Take a
break!.................................................... 484
: Automatic driving lights inoper-
ative...................................................... 457 Û
Battery overheated Stop, every-
body out! Outdoors if possible ................ 465
Á Change key batteries .................... 454
è Charger cable connected .............. 463
J Check brake 0uid le vel.................. 483
5 Check eng. oil le v.when next
re fuelling ............................................... 515
ï Check trailer hitch lo ck(white
display message) .................................... 469
h Check tyre(s) ................................ 508
! Clean the fuel /lter....................... 476
É Compressor is cooling .................. 497
ÿ Coolant Stop vehicle Switch
engine o............................................... 475
! currently una vailable See Own-
er's Manual............................................4 99
÷ currently una vailable See Own-
er's Manual............................................5 00
5 Engine oil le vel cannot be meas-
ured....................................................... 517 542 542
Index

_
Rear leT seat backrest not
loc ked (Example) .................................... 473
h Rectify tyre pressure ..................... 509
Ø Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 512
! Release parking brake ...................482
¸ Replace air cleaner ....................... 476
Á Replace key.................................. 454
8 Reser vefuel le vel.......................... 476
6 Restraint sys. malfunction Con-
sult workshop ....................................... .450
# See Owner's Manual..................... 505
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 471
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 471
d Stop Switch engine o.................. .466
# Stop vehicle Lea veengine run-
ning ....................................................... 506 #
Stop vehicle See Owner's Man-
ual......................................................... 505
É Stop vehicle Vehicle too low .......... 495
ç suspended .................................... 486
: Switch o. lights............................ 457
: Switch on headlamps .................... 457
6 Tank is dep ressurised Ready for
re fuelling ............................................... 467
6 Tank ventilation Malfunction
Consult workshop ................................. .468
á temp orarily una vailable Camera
view restric ted....................................... 494
¸ temp orarily una vailable Sensors
dirty....................................................... 493
Ø Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 512
+ Top up coolant See Owner ’s
Manual.................................................. 474
¥ Top up washer 0uid...................... .473 u
Towing not permitted See Own-
er's Manual ............................................ 462
ï Trailer coupling extending…........... 469
! Turn on the ignition torelease
th e parking brake ................................... 483
d Vehicle is operational Switch o.
ignition before exiting............................. 468
É Vehicle rising Please wait.............. 496
É Vehicle rising ................................ 496
h Warning tyre defect....................... 509
h Wheel sensor(s) missing ................ 508
Ø XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 513
"Electric" drive prog ram cur rently
una vailable............................................. 464
Ac tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 491
Ac tive Blind Spot Assist inoperative........ 492 544 544
Index

Switching on.........................................
.342
Vo ice commands (LINGU ATRO NIC)........ 310
N
N a
avig
vig ation
ation
see Destination ent ry
see Map
see Route
N
N eutr eutr al
al
Engaging................................................ 200
N
Noise oise
Wheels and tyres................................... 411
Wheels/tyres......................................... 411 O
O
Occupant safe
Occupant safe ty
ty
see Airbag
see Automatic co-driver airbag shuto.
see Child seat
see Pets in theve hicle
see PRE-SAFE ®
(anticipatory occu-
pant pr otection)
see PRE-SAFE ®
Impulse Side
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restraint system see Seat belt
O. -r
O.-r oad oaddr
driving
iving........................................... .185
O.-r
O.-r oad
oaddr
driving
iving
see O.- road driving
O.r
O.r oad
oad Score
Sco re
Displaying.............................................. 199
Oil
Oil see Engine oil
On-boar
On-boar d com
d comput
puter
er
Displaying the service due dat e.............. 374
Head-up display menu............................ 302
Instrument displa y................................. 301
Menu overview. ...................................... 298
Operating.............................................. 298
On-boar On-boar d diagnos
d diagnostics int tics interf
erface
ace
see Diagnostics connection
On-boar
On-boar d electr
d electr ical syst
ical syst em batt
em batter
ery (12 V)
y (12 V)
Charg ing................................................ 400
Re placing.............................................. .401
St arting assis tance............................... .400
On-boar
On-boar d electr
d electronics
onics
Engine electronics................................. 428
No tes..................................................... 428 Tw
o-w ayradios...................................... 428
Online ser Online ser vices
vices
Data storag e............................................ 41
Online ser
Online ser vices
vices
see In-Car O1ce
Open-sour
Open-sour ce
cesoTw
soTw are
are.................................... 42
Opening t
Opening t he t
he tailg
ailgat
ate using y
e using y our f
our foot
oot
HANDS-FREE ACCESS............................. 90
Oper
Oper ating
ating 0uids
0uids
Ad Blue ®
................................................ .437
Ad ditives (fuel)....................................... 435
Brake 0uid............................................. 441
Coolant (engine).................................... 441
Engine oil............................................... 438
Fu el (diesel)........................................... 435
Fu el (petrol)........................................... 434
No tes..................................................... 433
Wi ndsc reen washer 0uid........................ 442
Oper Oper ating safe
ating safe ty
ty
48 V on-board elect rical system............... 25
Declaration of conformity (electro-
magn etic compatibility)............................ 28
Declaration of conformity (jack)............... 34
Declaration of conformity (TIREFIT kit)...... 35 Index
557 557