2018 MERCEDES-BENZ C-CLASS CABRIOLET trailer

Display messages
Possible causes/consequences and 0050
0050Solutions
Operation only possible in
transmission position P
00CA
Operation only possible in
transmission position N *
Ve hicles with manual transmission: you attem ptedto swivel the ball neck and the transmission is not in neutral
005C. 0007
Shift the transmission toneutral 005C.
00CA Check trailer hitch lock
(whi tedisplay message) *T
he trailer tow hit chis not operational when you are driving with a trailer. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 0007
Uncouple the trailer and secure it against rolling away. 0007
Initiate a new swivelling procedure (0013 page243). 0007
Ifth e ball neck is extended, press and hold the button on the boot lid until the ball neck engages beneath the
bumper. 0007
When the display message disappears, couple up the trailer and drive on. 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. Display messa
ges and warning/indicator lamps 517

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Uncouple the trailer and secure it against rolling away. 0007
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. If
th e display message does not disappear, the trailer tow hit chis defective and the ball neck is not loc ked. 0007
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe
unlo cked ball nec k. 0007
Consult a qualified specialist workshop.
The trailer tow hit chis not operational when theve hicle is at a standstill. 0007
Uncouple the coupled trailer and secure it against rolling away. 0007
Initiate a new swivelling procedure (0013 page243). 0007
Ifth e ball neck is retracted: press and hold the button on the boot lid until the ball neck engages vertically in
th e loc ked position and then engages beneath the bumper. 0007
Ifth e ball neck is extended: press and hold the button on the boot lid until the ball neck engages beneath the
bumper.
If th e display message does not disappear, the trailer tow hit chis defective and the ball coupling is not loc ked. 0007
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe
unlo cked ball nec k. 0007
Consult a qualified specialist workshop. 518
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
0049 Active Light System inoper-
ative *T
he active headlamp s arefaulty. 0007
Consult a qualified specialist workshop.
0049 Malfunction See Owner's
Manual *T
heexterior lighting is faulty. 0007
Consult a qualified specialist workshop.
Ve hicles with a trailer hitch: a fuse may haveblown. 0007
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. 0007
Check the fuses and replace them if necessary (0013 page 428).
Adaptive Highbeam Assist
inoperative *A
daptive Highbeam Assist is malfunctioning. 0007
Consult a qualified specialist workshop.
Adaptive Highbeam Assist
currently unavailable See
Owner's Manual *A
daptive Highbeam Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (0013 page132). 0007
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again. The Adaptive Highbeam
Assist available again display message appears.
*T he camera view is restricted. Possible causes:
R dirt on the windscreen in the camera's field of vision Display messages and
warning/indicator lamps 525

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions 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. 0007
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. 0007
Obser vethe messages on the multifunction displa y.
If th e trailer hitch swivels: 0007
Wait until the ball coupling has reached the operational position. 540
Displaymessa ges and warning/indicator lamps

Ac
tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 485
Ac tive bonnet malfunction See Own‐
er's Manual ......................................... 520
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 484
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 482
Ac tive Dis tance Assi stavailable
again .................................................. .493
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........493
Ac tive Dis tance Assi stinope rative ...... 493
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 494
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........488
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 489 0049Ac
tive Light Sy stem inoperative .. 525
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 487
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........487
Ac tive Steering Assist inoperative .......486
Ad aptive Highbeam Assist Camera
view restricted See Owner's Manual ... 525
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........525
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 525
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 526
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .526 Ad
aptive Highbeam Assist Plus inop‐
erative ................................................ .526
0099 AdBlue sy stem fault Engine
st art not possible ................................ 504
0099 AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 504
0099 AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................. .504
0099 AdBlue sy stem fault See Own‐
er's Manual ........................................ .503
00B2Ad d 1 litre engine oil when next
re fuelling ............................................. 502
Apply brake todeselect Park (P)
position ...............................................5 06
Apply brake toselect R ....................... 508
00ADAT TENTION ASSIST inoperative ... 492
00ADAT TENTION ASSIS T:Take a
break! .................................................. 488 Index
551

0049Au
tomatic driving lights inoper‐
ative .................................................... 524
Au xilia rybattery malfunction .............. 506
0044Before starting the engine, turn
th esteering wheel. .............................. 508
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 486
Blind Spot Assist inope rative ............... 487
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 90
Brake immediate ly............................... 472
Cann otstart engine See Owner's
Manual ................................................ 498
00AFChan gekey bat teries ...................5 15
004D Check brake fluid le vel................ 477
Check brake pads See Owner's Man‐
ual ...................................................... .485
00B2Che ckeng. oil le v.when next
re fuelling ............................................. 502 00CAChe
cktrailer hitch lo ck(white
display message) .................................5 17
Check tyre pressures then restart
Ru n Flat Indicator ................................. 513
0077 Check tyre(s) ................................ 511
003A Clean the fuel filter .................... .496
0058 Close boot sepa rator .................. 523
Clutch overheated Avoid pulling away
fo r XX:XX mins ..................................... 507
0059 Convertible Top Operation pos‐
sible to60 km/h ................................. 522
00ACCoolant Stop vehicle Switch
engine off ............................................ 498
Cruise contro l and Limiter inope ra‐
tive ...................................................... 493
Cruise control inope rative ................... 493
Cruise control off ................................ 493
0025cu rrently unavailable See Own‐
er's Manual .......................................... 47800E5
currently una vailable See Own‐
er's Manual .......................................... 472
Dep ress clutch fully tostart engine .....5 07
00B3 Engine oil le vel cannot be
measured ............................................ 500
00B2Engine oil le velRe duce oil le vel...5 00
00B2Engine oil le velSt op vehicle
Switch engine off ................................. 501
00B2Engine oil pressure Stop Switch
off engine ............................................ 501
Fa ult Drive at max. 80 km/h ...............490
0075Fr ont left malfunction Consult
wo rkshop (Example) ............................4 83
006FFr ont left seat backrest not
loc ked (Example) .................................. 519
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 82
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 481552
Index

0059
While stationar y,apply the
brakes before operating the soft top.
.............................................................5 23
Wi thout changing gear, consult work‐
shop ....................................................5 06
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 .............................. 78
Locking (emergency key) ...................... .82
Opening (from the inside) ......................79
Un locking (emer gency key) .................. .82
Un locking (from the inside) ...................79
Door cont rol panel .................................... .16
Draught stop
Care .................................................... 402 Dr
aw bar
see Tow- bar sy stem
Drive Away Assist .................................... 231
Drive position Engaging .............................................. 16 4
Drive prog ram display ............................. 15 9
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat
Driving abroad Symmetrical dipped beam ...................1 27
Driving lights see Automatic driving lights
Driving saf ety sy stem ............................ .183
ABS (Anti-lock Braking Sy stem) ........... 184
Ac tive Brake Assi st.............................. 189
Ad aptive brake lights .......................... .195
BA S (Brake Assi stSystem) .................. 185
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 188
ESP ®
Crosswind Assi st........................ 188
ESP ®
trailer stabilisation .................... .188 Overview .............................................
184
Ra dar sensors .....................................1 83
Re sponsibility ...................................... 183
ST EER CONTROL ................................. 189
Driving sy stem
DY NA MIC BODY CONTROL .................. 213
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Dis tance Assi stDISTRONIC
see Active Emergency Stop Assist
see Active Lane Change Assi st
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assi st
see Active Steering Assist
see AIRMATIC
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Reversing camera Index
555

Suspension le
vel (AIRMATIC)
Setting ................................................ .215
SV HC (substances of very high con‐
cern ).......................................................... .28
Switch-off delay time Exterior ................................................ 13 5
Interior .................................................1 36
Switching the sur round sound on/off
Burmes ter®
sur round sound sy stem ... 386
Synchronisation function Switching on/off (cont rol panel) ........ .144
Sy stem settings
Ac tivating/deactivating PIN pr otec‐
tion ...................................................... 294
Re set function (multimedia sy stem) ....2 98
Setting the dis tance unit ..................... 293
Setting the time and date automati‐
cally ..................................................... 288
Setting the time zone .......................... 288
Setting the time/date form at .............. 289
Swit ching transmission of theve hicle
position on/off .................................... 289
Sy stem settings
see Blue tooth® see Data import/export
see Language
see Software update
see Wi-Fi T
Ta ilpipes (Care) ........................................ 403
Ta ke -back of end-of-life vehicles .............. 21
Pr otection of the environment ............... 21
Ta nk content
Ad Blue ®
............................................... 464
Fu el ..................................................... 462
Re ser ve(fuel) ...................................... 462
Te ch nical data
Axle load (trailer operation) ................. 470
Fa stening points (trailer hitch) .............4 69
Information .......................................... 454
Mounting dimensions (trailer hitch) ..... 469
No tes (trailer hitch) ............................. 469
Overhang dimension (trailer hitch) ...... 469
To ngue weight .................................... .470
To wing capacity (trailer operation) ...... 469
Ty re pressure monitoring sy stem ........ 436
Ve hicle identification plate .................. 456 Te
lephone ........................................ 260, 329
Ac tivating functions du ring a call ........ 334
Call and ringtone volume .................... .334
Calls with se veral participants ............ .334
Connecting a mobile phone (Near
Field Communication (NFC)) .............. .333
Connecting a mobile phone (Pass‐
ke y) .................................................... .330
Connecting a mobile phone (Secu re
Simple Pairing) .................................... 330
De-authorising a mobile phone ............ 332
Disconnecting a mobile phone ............ 332
Importing con tacts .............................. 337
Importing contacts (o verview) ............ .336
Incoming call during an existing call .... 335
Information .......................................... 330
Inter changing mobile phones .............. 332
Locking theve hicle (mobile phone) .......79
Menu (on-board computer) .................. 260
Mobile phone voice recognition .......... 334
No tes ................................................... 327
Operating modes ................................. 330
Re ception and transmission volume .... 333
St arting theve hicle (mobile phone) ..... 14 9
Switching mobile phones (Near Field
Communication (NFC)) ........................ 333 574
Index