check engine MERCEDES-BENZ E-CLASS COUPE 2018 Owner's Manual

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
6 Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is faulty (→ page31). &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or might not
be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop immediatel y. Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
The driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt(→ page 36).
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Display messages and
warning/indicator lamps 537

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Incre asethe dis tance.
Fu nction of Active Brake Assi st . Engine
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
; Engine diagnosis warning
lamp The
yellow engine diagno stics warning lamp is lit while the engine is running.
A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
Ve hicles with a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need not
be checked.
# Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
There is a fault in the electrics. #
Obser vethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 539

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

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. #
Consult a qualified specialist workshop. Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ð Po we rst eering sy stem
wa rning lamp The
red po werst eering sy stem warning lamp is lit while the engine is running.
The po wer-assis tedsteering or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Obser vethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 543

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

Electronic
Stability Prog ram
see ESP ®
(Electronic Stability Prog ram)
Emer gency
Fire extinguisher ................................. .420
Fir st-aid kit (so ftsided) ........................ 419
Overview of the help functions .............. 16
Re moving thewa rning triangle ............ .419
Saf etyve st ........................................... 41 8
Setting up thewa rning triangle ............ 419
Emer gency braking ................................. 188
Emer gency braking
see BAS (Brake Assi stSystem)
Emer gency call sy stem
see Mercedes-Benz emer gency call sy stem
Emer gency engine start .......................... 437
Emer gency key
Inserting/removing ............................... 73
Locking a door ....................................... 79
Un locking a door .................................. .79
Emer gency operation mode
St arting theve hicle .............................. 161
Emer gency spare wheel .........................4 59
No tes .................................................. 459 Re
moving ............................................ 460
ENERGIZI NGcomfort
Overview of programs .......................... 310
St arting the program ............................3 11
Engine ECO start/ stop function ......................1 65
Engine number ................................... .463
St arting (Digital Vehicle Keyst icke r) .... 16 0
St arting (eme rgency operation
mode) .................................................. 161
St arting (mobile phone) ...................... .160
St arting (Remo teOnline) ..................... 16 2
St arting (s tart/s top button) ................ 15 9
St arting assis tance .............................. 430
Switching off (s tart/s top button) .........1 81
Engine bonnet Function (active bonnet) ...................... 401
Opening/closing ................................. 402
Re setting (active bonnet) ..................... 401
Engine data Displaying ............................................ 17 0
Engine electronics Notes ................................................... 461
Engine number ........................................4 63Engine oil
................................................. 405
Ad ditives .............................................. 471
Capacity .............................................. .471
Checking the oil le vel using the oil
dipstick ............................................... 404
Checking the oil le vel using the on-
board computer ................................... 405
MB-Fr eigabe or MB-Appr oval .............. .471
Quality ................................................. 471
To pping up ...........................................4 05
Entering characters
Fu nction/no tes ................................... 296
On theto uchpad .................................. 297
Using the controller ............................. 297
EQ Boost ECO start/ stop function (operation) ....1 65
Glide mode .......................................... 174
Operating saf ety .................................... 21
Qualified specialist workshop ................25
ERA-GLONASS test mode
St arting/ending .................................. 364
ESC (Elect ronic Stability Control)
see ESP ®
(Electronic Stability Prog ram) Index
561