2018 MERCEDES-BENZ E-CLASS COUPE engine coolant

Display messages
Possible causes/consequences and M
MSolutions
Coolant Stop vehicle
Switch engine off &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire 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 qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
Û
Please wait Charging high-
voltage battery *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, theMotor can
be started again display message will be shown on the multifunction displa y. #
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. 506
Display messages and warning/indicator lamps

Ð
Po
we r-assis tedsteering malfunction
(→ page 543)
à AIR BODY
CONTROL malfunction
(→ page 538)
à DY
NA MIC BODY CONTROL malfunc‐
tion (→ page 538) ;
Engine diagnostics (→
page 539)
% Preglow
# Electrical
fault( →page 539)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (→ page 539) ?
Coolant
too hot/cold (→ page 539)
h Ty
re pressure monitor (→ page541)
ï Tr
ailer hit chis not operational or is
swivelling (→ page543) Sa
fet y sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Re d indicator lamp, elect ric
parking brake applied
!
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning The
red elect ric pa rking brake indicator lamp flashes or is lit. The yellow indicator lamp is also lit if the electric parking
brake malfunctions. #
Obser vethe messages on the multifunction displa y.532
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
8 Fu elreser ve wa rning lamp The
yellow fuel reser vewarning lamp is lit while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel.
?
Coolant warning lamp The
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
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. 540
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Obser vethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop.
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (→ page 407). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. Display messages and
warning/indicator lamps 541

Switching on/off .................................
14 6
Switching there ar wind owheater
on/off .................................................1 45
THERMATIC control panel .................... 14 5
THERMOTRONIC contro l panel ............14 5
Ve ntilating theve hicle (con venience
opening) ................................................ 88
Climate style
Fu nction ............................................... 147
Setting ................................................. 147
Cockpit ........................................................ .6
Overview .................................................6
Cof fee cup symbol
see ATTENTION ASSIST
COMAND Online see Multimedia sy stem
COMAND Touch
Managing devices ................................ 303
Combination switch ................................13 0
Compass .................................................. 337
Compu ter
see On-board computer Connection
status
Displ aying ............................................ 368
Overview ............................................ .368
Connectivity Setting up a hotspot via business tel‐
ephony ................................................ 300
Swit ching transmission of theve hicle
position on/off .................................... 300
Contacts ................................................... 347
Calling up ............................................ 348
Deleting ............................................... 350
Downloading (from mobile phone) ...... 348
Importing ............................................ 349
Importing (o verview) .......................... .349
Information .......................................... 347
Making a call ....................................... 349
Na me form at ...................................... .348
Options ................................................ 349
St oring ................................................ 349
Controller Operating ............................................ 291
Con venience closing ................................. 88
Con venience opening ................................ 88 Coolant (engine)
Check le vel .......................................... 407
No tes ................................................... 473
Cooling see Climate control
Copyright .................................................. .29
Cornering light ........................................ .132
Cross Traf fic Alert .................................. .242
Crosswind Assist Function/no tes ................................... 19 5
Cruise control .......................................... 201
Ac tivating ............................................ 203
Buttons ................................................ 203
Calling up a speed ............................... 203
Deactivating ........................................ 203
Fu nction .............................................. 201
Re quirements ...................................... 203
Selecting ............................................ .203
Setting a speed ................................... 203
St oring a speed ................................... 203
Sy stem limitations ...............................2 01
Cup holder Rear ben chseat ..................................1 22 Index
553

Ad
aptive Highbeam Assist Plus inop‐
erative ................................................ .530
¯ AdBlue sy stem fault Engine
st art not possible ................................ .512
¯ AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual .................................................5 11
¯ AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................... 511
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 511
4 Add 1 litre engine oil when next
re fuelling ............................................. 509
Air conditioning Malfunction See
Owner's Manual .................................. 526
Apply brake todeselect Park (P)
position ................................................ 513
App lybrake toselect R ........................ 514
À ATTENTION ASSIST inoperative ... 498ÀAT
TENTION ASSIS T:Take a
break! .................................................. 495
bAu tomatic driving lights inoper‐
ative .................................................... 529
Au xilia rybattery malfunction ...............514
Beginning eme rgency stop .................. 490
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 501
Blind Spot Assist inope rative ............... 494
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 97
Cann otstart engine See Owner's
Manual ................................................ 505
ÁChan gekey bat teries .................. 520
JCheck brake fluid le vel................ 483
Check brake pads See Owner's Man‐
ual ...................................................... .493
4Che ckeng. oil le v.when next
re fuelling .............................................. 51 0ï
Check trailer hit chlock (white
display message) ................................ .525
Che cktyre pressu resth en restart
Ru n Flat Indicator ................................. 519
h Check tyre(s) .............................. .516
! Clean the fuel filter .................... .503
?Coolant Stop vehicle Switch
engine off ............................................ 505
Cruise contro l and Limiter inope ra‐
tive ...................................................... 500
Cruise control inope rative ................... 500
Cruise control off ................................ 500
!cu rrently unavailable See Own‐
er's Manual ........................................ .485
÷cur rently una vailable See Own‐
er's Manual .......................................... 479
5 Engine oil le vel cannot be
measured ............................................ 507
4Engine oil le velRe duce oil le vel...5 08 556
Index

ÁPlace
theke y in the mar ked
space See Owner's Manual ................. 520
KPlease check direction of tr avel ...... 491
Please reduce speed ...........................4 93
ÛPlease wait Charging high- volt‐
age battery .......................................... 506
PRE- SAFE inoperati veSee Owner's
Manual ................................................ 490
Ra dar sensors dirty See Owner's
Manual ................................................ 484
_Re ar left seat backrest not
loc ked (Example) .................................5 22
hRe ctify tyre pressure ....................517
Re duce speed ...................................... 51 8
Ø Refill Ad Blue Eng. start not pos‐
sible .................................................... .510
Ø Refill Ad Blue See Owne r’s Man‐
ual ........................................................ 51 0
! Release parking brake .................482
¸Re place air cleaner .....................504ÀRe
placekey See Owner's Man‐
ual ...................................................... .521
Á Replace key ................................ .520
8Re servefuel le vel........................ 507
6Re stra int sys. malfunction Con‐
sult workshop ...................................... 492
Re versing not poss. Consult work‐
shop ..................................................... 514
Risk of vehicle rolling Driver door
open and transmission not in P ............514
Ru n Flat Indicator inope rative .............. 519
# See Owner's Manual ................... 503
Speed limit (winter tyres) XXX km/h ... 501
ÐSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 523
ÐSt eering malfunction Stop
immediately See Owner's Manual .......523
St op vehicle Lea veengine running
Wa itTransmission cooling ....................513#
Stop vehicle Lea veengine run‐
ning ..................................................... 504
#St opvehicle See Owner's Man‐
ual .......................................................5 04
ÉSt opvehicle Vehicle too low ........ 497
çsuspended ..................................4 99
bSwitch off lights .......................... 528
bSwitch on headla mps.................. 529
To shift out of P or N,depress brake
and start engine .................................. .513
Ø Top up AdBlue Perf.re duced in
XXX miles See Owner's Manual ...........512
Ø Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km .............512
To p up coolant See Owner ’sManual ... 503
¥To p upwasher fluid .................... .525
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 496
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 496558
Index

O
Occupant saf ety
Pe ts in theve hicle ................................. 70
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Odome ter
see Total dis tance
Oil see Engine oil
On-board co mputer ................................. 262
Assis tant displ aymenu ........................ 265
Displaying the service due date ........... 400
Head-up display menu .........................2 71
Media menu ........................................2 70
Menu designs ...................................... 263
Menu overview .................................... 262 Multifunction display ..........................
.264
Na vigation menu ................................. 268
Operating ............................................ 262
Ra dio menu .........................................2 69
Service menu ...................................... 265
Te lephone menu .................................. 270
Tr ip menu ............................................ 266
On-boa rddiagno stics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .461
No tes ................................................... 461
Tw o-w ayradios .................................... 461
Open-source software .............................. 29
Opening the boot lid using your foot
HANDS-FREE ACCESS .......................... .83
Operating fluids
Ad Blue ®
............................................... 470
Ad ditives (fuel) .................................... 468
Brake fluid .......................................... .472
Coolant (engine) .................................. 473
Engine oil ............................................. 471
Fu el (diesel) ......................................... 468
Fu el (petrol) ......................................... 467 No
tes .................................................. 465
Wi ndsc reen washer fluid ...................... 473
Operating saf ety
48 V on-boa rdelectrical sy stem ............ 21
Declaration of Conformity (electro‐
magnetic compatibility) ........................ .23
Declaration of conformity (ja ck) ............ 23
Declaration of con form ity (TIREFIT kit) .. 24
Declaration of conformity (wireless
ve hicle components) ............................. 23
EQ Boost ................................................ 21
Information ............................................ 21
Operating sy stem
see On-board computer
Outside mir rors ................................ 140, 141
Anti-dazzle mode (automatic) ............... 141
Au tomatic mir rorfo lding function ........ 14 2
Fo lding in/out .................................... .140
Operating the memory function ........... 11 2
Pa rking position .................................. .141
Setting ................................................. 14 0
Overhead control panel Making calls (Mercedes me connect).............................................................3 59 Index
571