2021 MERCEDES-BENZ E-CLASS SALOON engine coolant

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
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
459
459

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:
0075 Restraint system (/ page 501)
00E9 Seat belt (/ page 501)
_ Reduced po wer (/ page 502)
00D6 System error (/ page 502)
003D Electricalfault (/ page 502)
ï Trailer hitch (/ page 503)
Ù Powe r steering (/ page 503) ÿ
Coolanttemp erature (/ page 505)
00B9 Engine diagnostics (/ page 505)
0028 V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
003D Electricalfault (/ page 505)
00B6 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 505)
0024 Electric parking brake (red)
(/page 508)
0024 Electric parking brake (yellow)
(/page 508)
004D Brakes (yellow) (/ page 508)
004D Brakes (red) (/ page 508)
L Distancewarning (/ page 510)
Ó Active Brake Assist (/ page 510)
ê Active Brake Assist (/ page 510)
ä AIR BODYCONTROL (/ page 510)
ä DYNAMIC BODY CONTROL
(/ page 510)
0025 ABS (/page 511)
00E5 ESP®
(/ page 511) 00BB
ESP®
OFF (/ page 511)
0077 Tyre pressure monitoring system
(/ page 514)
0060 Standing lights (/ page 134)
0058 Low beam (/ page 134)
0057 High beam (/ page 136)
003E003D Turn signal lights (/ page 136)
005E Rear fog light (/ page 134) 500 500
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 and0050
0050Solutions
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
505
505

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
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 365). #
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. 506
506
Displ
aymessages and warning/indicator lamps

Conv
Conv
enience opening
enience opening..................................... 93
Coolant (engine)
Coolant (engine) Levelch eck............................................ 365
No tes..................................................... 425
Cooling
Cooling
see Climate control
Cop
Cop yr
yright
ight....................................................... 42
Cor
Cor ner
nering light
ing light............................................. 137
Cr
Cr oss
oss tr
tra1c
a1c (w
(war
arning)
ning)
see Manoeuvring assis tance
Cr
Cr oss
oss Tr
Tra1c
a1c Alert
Alert........................................ 269
Cr
Cr osswind Assist
osswind Assist
Fu nction/no tes...................................... 220
Cr
Cr uise contr
uise contr ol
ol
Ac tivating............................................... 226
Buttons.................................................. 226
Calling up a speed................................. 226
Deactivating........................................... 226
Fu nction................................................ 224
Maximum design speed.......................... 183
Re quirements:....................................... 226
Selecting............................................... 226
Setting a speed...................................... 226 St
oring a speed...................................... 226
System limitations.................................. 224 D D
Dashcam
Dashcam Notes..................................................... 333
Selecting a USB device......................... .334
St arting/stopping a video recording...... .334
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)........................ .100
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)........... 369
DeN
DeNOx ag Ox ag ent
ent
see AdBlue ®
Des
Destination entry tination entry
Entering a POI or addres s....................... 329
Det
Det ecting inatt
ecting inatt entiv
entiveness
eness
see ATTENTION ASSIST
Diagnos
Diagnostics connection tics connection.................................. 35
Diesel
Diesel Low outside tempe ratures...................... 420
No tes..................................................... 420
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.......................... 187
Engaging drive position.......................... 188
Engaging neutral................................... .187 Index
523
523

Engaging park position automaticall
y...... 187
Fu nction................................................ 186
Selecting park position........................... 187
Displa
Displa y (car
y (care)
e)............................................... 372
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Home sc reen......................................... 313
Operating.............................................. 314
Displa
Displa y (on-boar
y (on-boar d com
d comput
puter)
er)
Displa yson the inst rument displa y......... 286
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).............. 433
No tes..................................................... 433
Displa
Displa y messag y messag es
es
ç - - - km/h.................................... .470
00CB - - - km/h..................................... 469
h - - - km/h..................................... 469
003D 12 V battery See Owner's Man-
ual......................................................... 486
00D7 48 V battery See Owner's Man-
ual......................................................... 488 ò
Acoustic presence indicator
inoperative............................................ .447
: Active Light System inoperative..... 441
0099 AdBlue system fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km.................................................. 496
0099 AdBlue system fault Emer gency
op. in XXX miles See Owner's Manual.... 495
0099 AdBlue system fault Engine
start not possible................................... 496
0099 AdBlue system fault See Own-
er's Manual............................................ 495
00B3 Add 1 litre engine oil when next
re fuelling ............................................... 497
é ATTENTION ASSIST inoperati ve..... 468
é ATTENTION ASSIS T:Take a
break!.................................................... 468
: Automatic driving lights inoper-
ative...................................................... 441 00D7
Battery overheated Stop, every-
body out! Outdoors if possible ................ 449
Á Change key batteries .................... 438
00E5 Charger cable connected .............. 447
004D Check brake 0uid le vel.................. 467
00B3 Check eng. oil le v.when next
re fuelling ............................................... 497
ï Check trailer hitch lo ck(white
display message) .................................... 453
0077 Check tyre(s) ................................ 490
003A Clean the fuel /lter....................... 460
ÿ Coolant Stop vehicle Switch
engine o............................................... 459
0025 currently una vailable See Own-
er's Manual............................................4 81
00E5 currently una vailable See Own-
er's Manual............................................4 82
00B3 Engine oil le vel cannot be meas-
ured....................................................... 499
00B3 Engine oil le velRe duce oil le vel..... 498 524 524
Index

0075
Restraint sys. malfunction Con-
sult workshop ....................................... .434
003D See Owner's Manual..................... 487
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 455
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 455
0080 Stop Switch engine o................... 450
003D Stop vehicle Lea veengine run-
ning ....................................................... 488
003D Stop vehicle See Owner's Man-
ual......................................................... 487
00CC Stop vehicle Vehicle too low .......... 479
ç suspended .................................... 470
: Switch o. lights............................ 441
: Switch on headlamps .................... 441
00B4 Tank is dep ressurised Ready for
re fuelling ............................................... 451
00B4 Tank ventilation Malfunction
Consult workshop ................................. .452 á
temp orarily una vailable Camera
view restric ted....................................... 478
¸ temp orarily una vailable Sensors
dirty....................................................... 477
00C8 Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 494
00BD Top up coolant See Owner ’s
Manual.................................................. 458
00B2 Top up washer 0uid...................... .457
u Towing not permitted See Own-
er's Manual ............................................ 446
ï Trailer coupling extending…........... 453
0024 Turn on the ignition torelease
th e parking brake ................................... 467
0072 Vehicle is operational Switch o.
ignition before exiting............................. 452
00CC Vehicle rising Please wait.............. 480
00CC Vehicle rising ................................ 480
0077 Warning tyre defect....................... 491
0077 Wheel sensor(s) missing ................ 49000C8
XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 495
"Electric" drive prog ram cur rently
una vailable............................................. 448
Ac tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 475
Ac tive Blind Spot Assist inoperative........ 475
Ac tive Blind Spot Assist not available
when towing a trailer See Owner's
Manual.................................................. 476
Ac tive bonnet malfunction See Own-
er's Manual............................................ 455
Ac tive Brake Assist Functions cur-
re ntly limi ted See Owner's Manual .........484
Ac tive Brake Assist Functions limited
See Owner's Manual.............................. 485
Ac tive Distance Assist available again ..... 471
Ac tive Distance Assist cur rently
una vailable See Owner's Manual ............ 470526 526
Index

On-boar
On-boar
d electr
d electronics
onics
Engine electronics................................ .412
No tes..................................................... 412
Tw o-w ayradios...................................... 412
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 boo
he boot lid using y
t lid using y our f
our foot
oot
HANDS-FREE ACCESS............................. 89
Oper
Oper ating
ating 0uids
0uids
Ad Blue ®
................................................ .422
Ad ditives (fuel)....................................... 419
Brake 0uid............................................. 425
Coolant (engine).................................... 425
Engine oil............................................... 423
Fu el (diesel)........................................... 420
Fu el (petrol)........................................... 418
No tes..................................................... 417
Wi ndsc reen washer 0uid........................ 426
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
Declaration of conformity (wireless
ve hicle components)................................ 28
Informatio n..................................... ......... 25
Oper Oper ating syst
ating syst em
em
see On-boa rdcomputer
Op
Op timised acceler
timised acceler ation
ation
Ac tivating............................................... 171
Output
Output see Powe r me ter
Outside mirr
Outside mirr ors
ors
Anti-dazzle mode (automatic)................ .147
Au tomatic mir rorfo lding function........... 149
Fo lding in/out........................................1 46
Operating the memory function.............. 117
Pa rking position..................................... 148
Setting................................................... 146
Ov
Ov er
erhead contr
head contr ol panel
ol panel
Overview.................................................. 14
Owner's Manual
Owner's Manual Vehicle equipment................................... 25 Owner's Manual (digit
Owner's Manual (digit
al)
al)........................... 20, 21 P
P
P
P aint (cleaning ins
aint (cleaning ins tr
tructions)
uctions) ........................ .368
P
P aint code
aint code................................................... 415
P
P anel heating
anel heating
Setting................................................... 113
P
P anor
anor ama sliding sunr
ama sliding sunr oof
oof
see Sliding sunroof
P
P ar
ar k position
k position
Engaging................................................ 187
Selecting automatically..........................1 87
P P ar
ar king
king
see Electric parking brake
P
P ar
ar king aid
king aid
see Parking Assist PARKTRONIC
P
P ar
ar king Assis
king Assist P t PARK
ARK TR
TRONIC
ONIC
Ac tivating............................................... 263
Ad justing warning tones......................... 264
Deactivating........................................... 263
Fu nction................................................ 260
System limi tations.................................. 260 Index
539 539