2018 MERCEDES-BENZ C-CLASS COUPE engine

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
or 0007
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. 0007
Check the coolant le vel (0013 page 399). 0007
Make sure that the air supply tothera diator is not obstructed. 0007
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 0050
0050Solutions
0077 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. 000A
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired. 540
Displaymessa ges and warning/indicator lamps

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00CC 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. 000A
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. 0007
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. 0007
Consult a qualified specialist workshop. 0007
Obser vethe messages on the multifunction displa y.
00CA
Tr ailer tow hit chwarning
lamp The
red trailer tow hit chwarning lamp is on.
The trailer tow hit chis not operational or swivels. 000A
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. 0007
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. 0007
Uncouple the trailer and secure it against rolling away. 542
Displaymessa ges and warning/indicator lamps

Ac
tive Lane Keeping Assist .................... 24 5
Ac tivating/deactivating ...................... .247
Ac tivating/deactivating thewa rning .... 24 8
Fu nction .............................................. 24 5
Setting the sensitivity .......................... 24 8
Sy stem limitations ...............................2 45
Tr ailer operation .................................. 24 5
Ac tive Parking Assist .............................. 232
Cross Traf fic Alert ............................... 237
Drive AwayAssi st................................ 236
Exiting a pa rking space ...................... .235
Fu nction .............................................. 232
Manoeuvring assi stance ...................... 238
Pa rking ................................................ 233
Sy stem limitations ...............................2 32
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 208
Display ................................................ 208
Fu nction .............................................. 208
Ac tive Steering Assist ............................ .210
Ac tivating/deactivating ...................... .212
Ac tive Emergency Stop Assist .............. 214
Ac tive Lane Change Assi st................... 213Displ
ays in the instrument display .......2 14
Fu nction ............................................... 210
Sy stem limitations ...............................2 10
Ad aptive brake lights .............................. 200
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist
Fu nction ............................................... 131
Switching on/off ................................. 13 2
Ad aptive Highbeam Assist Plus
Switching on/off ................................. 13 4
Ad Blue ®
.................................................... 466
Ad ditives .............................................4 66
Capacity .............................................. 467
Fill le vel .............................................. .260
No tes ................................................... 176
Purity ................................................... 466
Ra nge .................................................. 260
To pping up ...........................................1 77
Ad ditional door lo ck.................................. 75Ad
ditional value range
Setting display content ........................ 258
Ad diti ves.................................................. 467
Ad Blue ®
............................................... 466
Engine oil ............................................. 467
Fu el ..................................................... 464
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance/ fader
Burmes ter®
sur round sound sy stem ....3 91
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ....3 91
Ad justing treble, mid- range and bass
settings
Burmes ter®
sur round sound sy stem ....3 91 Index
545

Immobiliser ............................................
94
Anti-theft pr otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay™ ....................................... 347
Connecting an iPhone ®
....................... 347
Ending .................................................3 48
No tes ................................................... 347
Overview ............................................. 347
Sound settings .................................... 348
Tr ans ferred vehicle data ......................3 50
Ashtr ay
Fr ont centre console ............................ 121
Re ar passenger compartment ............ .122
Using ................................................... 121
Assistance sy stems
see Driving saf ety sy stem
Assistant display Menu (on-board computer) .................. 260 ASS
YST PLUS ........................................... 392
Battery disconnection pe riods .............3 93
Displ aying the service due date ........... 392
Fu nction/no tes ................................... 392
Re gular maintenance work .................. 392
Special service requ irements .............. 392
ATA (anti-theft ala rmsystem) .................. .94
Deactivating the alarm .......................... 94
Fu nction ................................................ 94
Fu nction of interior pr otection ............... 95
Priming/deactivating interior pr otec‐
tion ........................................................ 96
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 95
To w- aw ay protection function ................95
AT TENTION ASSI ST......................... 238, 239
Fu nction .............................................. 238
Setting ................................................. 239
Sy stem limitations ...............................2 38
At tention assistant
see ATTENTION ASSIST
Au dio mode
Connecting USB devices ..................... 369
Co pyrights ...........................................3 66Information .......................................... 365
Inserting/removing an SD card ........... 366
Media sea rch ....................................... 372
Overview ............................................. 368
Pa use and playback function .............. .369
Selecting a track ................................. 369
Selecting playba ckoptions .................. 369
Switching on media mode ...................3 66
Tr ack list .............................................. 369
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................127
Au tomatic engine start (ECO start/
sto p function) .......................................... 15 9
Au tomatic engine stop (ECO start/
sto p function) .......................................... 15 9
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff Index
547

Importing (o
verview) ............................ 341
Information .......................................... 340
Making a call ...................................... .342
Na me form at ...................................... .341
Options ................................................ 342
St oring ................................................ 342
Controller Operating ............................................ 285
Con venience closing ................................. 87
Con venience opening ................................ 86
Coolant (engine) Check le vel .......................................... 399
No tes .................................................. 469
Cooling see Climate control
Co pyright .................................................... 31
Cornering light ........................................ .130
Cross Traf fic Alert .................................. .237
Crosswind Assist Function/no tes ................................... 19 3
Cruise control .......................................... 200
Ac tivating ............................................ 202 Buttons ................................................ 202
Calling up a speed ............................... 202
Deactivating ........................................ 202
Fu nction .............................................. 200
Re quirements ...................................... 202
Selecting ............................................ .202
Setting a speed ................................... 202
St oring a speed ................................... 202
Sy stem limitations ...............................2 00
Cup holder Rear ben chseat ................................... 121
Cup holder in the centre console
In stalling/removing ............................ .120
ins talling/ removing (auto matic
transmission) ....................................... 11 9 D
Damage de tection (pa rked vehicle) .......187
Dashboa rd
see Cockpit
Dashboard lighting see Instrument lighting
Data acquisition Vehicle .................................................. 29 Data import/export
................................ 298
Fu nction/no tes ................................... 298
Importing/exporting ........................... 299
Data storage
Electronic control units ........................ .29
Online services ...................................... 30
Ve hicle .................................................. 29
Date Setting the time and date automati‐
cally ..................................................... 293
Deactivating the alarm (A TA).................... 94
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility ............... 25
Jack .......................................................25
TIREFIT kit ............................................. 26
Wi reless vehicle components ................25
Decorative foil (cleaning instructions)
.................................................................. .404
DeNO x agent
see AdBlue ® 552
Index

Ac
tive bonnet malfunction See Own‐
er's Manual ......................................... 523
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 487
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 485
Ac tive Dis tance Assi stavailable
again .................................................. .496
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........496
Ac tive Dis tance Assi stinope rative ...... 496
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 497
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........491
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 492
0049Ac tive Light Sy stem inoperative .. 527Ac
tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 490
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........490
Ac tive Steering Assist inoperative .......489
Ad aptive Highbeam Assist Camera
view restricted See Owner's Manual ... 528
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........527
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 527
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 529
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .528
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .528 0099
AdBlue sy stem fault Engine
st art not possible ................................ 507
0099 AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 507
0099 AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................... 507
0099 AdBlue sy stem fault See Own‐
er's Manual ........................................ .506
00B2Ad d 1 litre engine oil when next
re fuelling ............................................. 505
Apply brake todeselect Park (P)
position ...............................................5 09
Apply brake toselect R ........................ 511
00AD ATTENTION ASSIST inoperative ... 495
00ADAT TENTION ASSIS T:Take a
break! .................................................. 491
0049Au tomatic driving lights inoper‐
ative .................................................... 526 554
Index

Au
xilia rybattery malfunction .............. 509
0044Before starting the engine, turn
th esteering wheel. ...............................5 11
Blind Spot Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Blind Spot Assist inope rative ............... 490
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 93
Brake immediate ly............................... 475
Cann otstart engine See Owner's
Manual ................................................ 501
00AFChan gekey bat teries ...................5 18
004D Check brake fluid le vel................ 480
Check brake pads See Owner's Man‐
ual ...................................................... .488
00B2Che ckeng. oil le v.when next
re fuelling ............................................. 505
00CAChe cktrailer hitch lo ck(white
display message) .................................5 20Che
cktyre pressu resth en restart
Ru n Flat Indicator ................................. 516
0077 Check tyre(s) .............................. .514
003A Clean the fuel filter .................... .499
Clutch overheated Avoid pulling away
fo r XX:XX mins ..................................... 51 0
00AC Coolant Stop vehicle Switch
engine off ............................................ 501
Cruise contro l and Limiter inope ra‐
tive ...................................................... 496
Cruise control inope rative ................... 496
Cruise control off ................................ 496
0025cu rrently unavailable See Own‐
er's Manual .......................................... 481
00E5cur rently una vailable See Own‐
er's Manual .......................................... 475
Dep ress clutch fully tostart engine .....5 10
00B3 Engine oil le vel cannot be
measured ............................................ 503
00B2Engine oil le velRe duce oil le vel...5 03 00B2Engine oil le
velSt op vehicle
Switch engine off ................................ 504
00B2Engine oil pressure Stop Switch
off engine ............................................ 504
Fa ult Drive at max. 80 km/h ...............493
0075Fr ont left malfunction Consult
wo rkshop (Example) ............................4 86
006FFr ont left seat backrest not
loc ked (Example) .................................5 22
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 85
Fr ont-passenger airbag enabled See
Owner's Manual ..................................4 84
003B inope rative Battery low ............... 525
003Binoperati veRefuel vehicle ........... 525
003Binoperative See Owner's Man. ....525
0025inoperative See Owner's Man‐
ual ....................................................... 482
00E5inoperative See Owner's Man‐
ual ....................................................... 483 Index
555

Risk of
vehicle rolling Driver door
open and transmission not in P ............511
Ru n Flat Indicator inope rative .............. 517
003D See Owner's Manual ................... 498
Speed limit (winter tyres) XXX km/h ... 497
00CCSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 523
00CCSt eering malfunction See Own‐
er's Manual .......................................... 511
00CC Steering malfunction Stop
immediately See Owner's Manual .......522
St op vehicle Lea veengine running
Wa itTransmission cooling ...................508
003DSt opvehicle Lea veengine run‐
ning ..................................................... 499
003DSt opvehicle See Owner's Man‐
ual .......................................................5 00
00CCSt opvehicle Vehicle too low ........ 493
çsuspended ..................................4 95
0049Switch off lights .......................... 526 0049Switch on headla
mps.................. 526
To shift out of P or N,depress brake
and start engine .................................. 509
00C8To p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........508
00C8 Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km .............507
To p up coolant See Owner ’sManual ... 499
00B2To p upwasher fluid .................... .524
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 492
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 491
Tr af fic Sign Assi stinope rative ............. 491
00CATr ailer coupling extending… .........519
Tr ansmission Malfunction Stop ........... 508
0024Tu rnon the ignition torelease
th e parking brake ................................. 476
0077 Tyre press. monitor cur rently
una vailable .......................................... .515 0077
Tyre press. monitor inoperative
No wheel sensors ................................ 51 5
0077 Tyre press. monitor inoperative ...515
Ty re pressure Check tyres ....................512
Ty re(s) ove rheated ...............................5 16
00CC Vehicle rising Please wait............ 489
00CCVe hiclerising ...............................4 92
0077Wa rning tyre defect .....................513
0077 Wheel sensor(s) missing ..............51 5
Wi thout changing gear, consult work‐
shop ....................................................5 09
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 .............................. 75 Index
557