2018 MERCEDES-BENZ CLS COUPE check engine

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 diagno stics 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 in the multifunction displa y.
8
Fu elreser vewarning lamp The
yellow fuel reser ve wa rning lamp is lit while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel. 536
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
or #
exitth eve hicle and keep a safe dis tance from it until the engine has cooled down #
Check the coolant le vel (→ page 393). #
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. 538
Displaymessa ges and warning/indicator lamps

THERMOTRONIC contro
l panel ............137
Ve ntilating theve hicle (con venience
opening) ................................................ 84
Wi ndsc reen heating ............................. 14 2
Climate style
Fu nction .............................................. 13 9
Setting ................................................. 13 9
Cockpit ........................................................ .6
Overview .................................................6
Cof fee cup symbol
see ATTENTION ASSIST
COMAND Online see Multimedia sy stem
COMAND Touch
Managing devices ................................ 294
Combination switch ................................124
Compass .................................................. 327
Compu ter
see On-board computer
Connection status
Displ aying ............................................ 355
Overview ............................................ .355 Connectivity
Switching transmission of theve hicle
position on/off .................................... 291
Contacts ................................................... 335
Calling up ............................................ 336
Deleting ............................................... 337
Downloading (from mobile phone) ...... 335
Importing ............................................ 336
Importing (o verview) .......................... .336
Information .......................................... 335
Making a call ....................................... 337
Na me form at ...................................... .336
Options ................................................ 337
St oring .................................................3 37
Controller Operating ............................................ 282
Con venience closing ................................. 84
Con venience opening ................................ 84
Coolant (engine) Check le vel .......................................... 393
No tes .................................................. 459
Cooling see Climate control Co
pyright .................................................... 31
Cornering light ........................................ .126
Cross Traf fic Alert .................................. .234
Crosswind Assist Function/no tes ................................... 186
Cruise control .......................................... 19 2
Ac tivating ............................................ .194
Buttons ................................................ 194
Calling up a speed .............................. .194
Deactivating ........................................ 194
Fu nction .............................................. 19 2
Re quirements ...................................... 194
Selecting .............................................. 194
Setting a speed .................................... 194
St oring a speed .................................... 194
Sy stem limitations ...............................1 92
Cup holder Rear .................................................... .115
Cup holder in the centre console
ins talling/ removing (auto matic
transmission) ....................................... 11 5 Index
549

Ad
aptive Highbeam Assist Plus inop‐
erative ................................................ .522
¯ AdBlue sy stem fault Engine
st art not possible ................................ 503
¯ AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 502
¯ AdBlue sy stem fault See Own‐
er's Manual ........................................ .502
4Ad d 1 litre engine oil when next
re fuelling ............................................. 499
Apply brake todeselect Park (P)
position ................................................ 514
App lybrake toselect R ........................ 514
À ATTENTION ASSIST inoperative ... 482
ÀAT TENTION ASSIS T:Take a
break! .................................................. 482
bAu tomatic driving lights inoper‐
ative ..................................................... 521
Au xilia rybattery malfunction ...............515Blind Spot Assi
stcur rently una vaila‐
ble See Owner's Manual ...................... 487
Blind Spot Assist inope rative ............... 488
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 88
ÂChange key bat teries .................. 509
JCheck brake fluid le vel................ 476
ï Check trailer hit chlock (white
display message) ................................ .512
h Check tyre(s) .............................. .505
!Clean the fuel filter .................... .500
?Coolant Stop vehicle Switch
engine off ............................................ 493
Cruise contro l and Limiter inope ra‐
tive ...................................................... 492
Cruise control inope rative ................... 492
Cruise control off ................................. 491
!cu rrently unavailable See Own‐
er's Manual ........................................ .466 ÷cur
rently una vailable See Own‐
er's Manual ........................................ .468
5Engine oil le vel cannot be
measured ............................................ 500
4Engine oil le velRe duce oil le vel...4 98
4Engine oil le velSt op vehicle
Switch engine off ................................ 498
4Engine oil pressure Stop Switch
off engine ............................................ 499
Fa ult Drive at max. 80 km/h ...............485
6Fr ont left malfunction Consult
wo rkshop (Example) ............................4 78
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 80
Fr ont-passenger airbag enabled See
Owner's Manual ..................................4 79
!inoperative See Owner's Man‐
ual ....................................................... 467
÷inoperative See Owner's Man‐
ual ....................................................... 469 552
Index

Risk of
vehicle rolling Driver door
open and transmission not in P ............514
# See Owner's Manual ................... 494
Speed limit (winter tyres) XXX km/h ... 492
ÐSt eering malfunction Drive
carefully Visit workshop ....................... 517
Ð Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ....51 8
Ð Steering malfunction Stop
immediately See Owner's Manual ........517
St op vehicle Lea veengine running
Wa itTransmission cooling ....................516
# Stop vehicle Lea veengine run‐
ning ..................................................... 495
#St opvehicle See Owner's Man‐
ual .......................................................4 95
ÉSt opvehicle Vehicle too low ........ 484
çsuspended ................................... 491
bSwitch off lights .......................... 522
bSwitch on headlamps .................. 522To
shift out of P or N,depress brake
and start engine .................................. .514
To p up coolant See Owner ’sManual ... 493
¥To p upwasher fluid .................... .520
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 489
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Tr af fic Sign Assi stinope rative ............. 489
ïTr ailer coupling extending… .........511
Tr ansmission Malfunction Stop ............ 51 5
! Turn on the ignition torelease
th e parking brake ................................. 471
h Tyre press. monitor cur rently
una vailable .......................................... 506
hTy repress. monitor inoperative
No wheel sensors ................................ 507
hTy repress. monitor inoperative ...507
Ty re pressure Check tyres ...................504
Ty re(s) ove rheated ...............................5 08dVe
hicle is operational Switch
off the ignition before exiting .............. .511
É Vehicle rising Please wait............ 483
ÉVe hiclerising ...............................4 83
hWa rning tyre defect .....................506
hWheel sensor(s) missing .............. 507
Wi thout changing gear, consult work‐
shop ..................................................... 51 5
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
Di stance recorder
see Trip dis tance
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock ...............................71
Child saf ety lock (rear door) .................. 63
Locking (emer gency key) ...................... .75
Opening (from the inside) ......................71
Un locking (emer gency key) .................... 75554
Index