2018 MERCEDES-BENZ C-CLASS CABRIOLET bonnet

fi
ed based on the actual operating conditions
and/or loads.
Examples of arduous operating conditions:
R regular city driving with frequent intermedi‐
ate stops
R mainly short-dis tance driving
R frequent operation in mountainous terrain or
on poor road sur faces
R when the engine is of ten le ftidling for long
periods
R operation in particula rly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequent ly. The
ty re s must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop. Battery disconnection periods
The ASS
YST PLUS se rvice inter val display
can only calculate the service due da tewhen
th e bat tery is connected. 0007
Notedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (0013 page 387). Engine compartment
Ac
tive bonn et(pedestrian pr otection) Operation of
the active bonnet (pedestrian
pr otection)
In cer tain accident situations, therisk of injury
to pedestrians can be reduced bythe actuation
of the active bonn et. The rear area of the bonn et
is raised byappr oximately 85 mm.
Fo rth e drive tothewo rkshop, reset the trig‐
ge red active bonn etyourself. Af terth e active
bonn ethas been triggered, pedestrian pr otection
may be limited.
A qu alified specialist workshop must re-ins tate
th e full functionality of the active bonn et. The active bonnet is not
available in all coun‐
tries.
Re setting the active bonnet 000A
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain components in the engine compart‐
ment can be very hot, e.g. the engine, the
ra diator and parts of theex haust sy stem. 0007
Allow the engine tocool down and only
to uch co mponent parts described in the
fo llowing. 388
Maintenance and care

0007
With your hand flat, push down active bonnet
1 inthe area around the hinges on bo th
sides (ar rows).
In doing so, the actuator is depressurised
and you may hear a hissing sound.
The engine bonnet must en gage in position. 0007
Ifth e active bonn etcan be raised slight lyat
th ere ar in the area of the hinges, repeat the
st ep until it engages cor rectl y. Opening/closing
the bonnet 000A
WARNING Risk of accident due todriv‐
ing with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up
when theve hicle is in motion and block your
vie w. 0007
Never unlock the engine bonn etwhen
driving. 0007
Before every trip, ensure that the
engine bonn etis loc ked. 000A
WARNING Risk of accident and inju ry
when opening and closing the engine
bonn et
When opening or closing the engine bonn et,
it may suddenly drop into the end position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. 0007
Only open or close the engine bonn et
when there are no persons in the
engine bonn et's range of mo vement. 000A
WARNING Danger of bu rns when open‐
ing 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 with hot gases or other escaping
operating fluids. 0007
Before opening the bonn et, allow the
engine tocool down. 0007
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. 000A
WARNING Risk of inju rydue tomoving
parts
Cer tain components in the engine compart‐
ment may continue tomo veor suddenly
mo veagain even af terth e ignition has been
switched off, e.g. the cooler fan.
Ma kesure of thefo llowing before per form ing
ta sks in the engine compartmen t: 0007
Switch the ignition off. 0007
Neverto uch the danger zone sur round‐
ing moving co mponent parts, e.g. the
ro tation area of thefa n. 0007
Remo vejewe llery and watches. 0007
Keep items of clo thing and hair away
from moving parts. Maintenance and care
389

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Consult a qualified specialist workshop.
00CC Steering malfunction
Increased physical effort
See Owner's Manual *T
he po wer assi stance forth esteering is malfunctioning. 000A
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. 0007
If safe steering is possible, drive on carefully. 0007
Visit or consult a qualified specialist workshop immediatel y. 0007
If safe steering is possible, drive on carefully. 0007
Visit or consult a qualified specialist workshop immediatel y.
Active bonnet malfunction
See Owner's Manual *T
he active bonnet (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. 0007
Consult a qualified specialist workshop.
0083 *T
he bonnet is open. 000A
WARNING Risk of accident due todriving with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up when theve hicle is in motion and block your vie w. 0007
Never unlock the engine bonn etwhen driving. 0007
Before every trip, ensure that the engine bonn etis loc ked. 520
Display messages 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

Emer
gency engine start .......................... 427
Emer gency key
Inserting/removing ................................ 76
Locking a door ....................................... 82
Un locking a door .................................. .82
Emer gency operation mode
St arting theve hicle ............................. 15 0
Emer gency spare wheel .......................... 451
No tes ................................................... 451
Re moving ............................................ 452
ENERGIZI NGcomfort
Overview of programs ........................ .299
St arting the program ........................... 300
Engine ECO start/ stop function ......................1 54
Engine number .................................... 456
St arting (Digital Vehicle Keyst icke r) .... 14 9
St arting (eme rgency operation
mode) .................................................. 15 0
St arting (mobile phone) ...................... .149
St arting (Remo teOnline) ......................1 51
St arting (s tart/s top button) .................1 48
St arting assis tance .............................. 420
Switching off (s tart/s top button) .........1 73Engine bonnet
Function (active bonnet) ...................... 388
Opening/closing ................................. 389
Re setting (active bonnet) .................... 388
Engine data Displaying ............................................ 16 0
Engine electronics Notes ................................................... 454
Engine number ........................................4 56
Engine oil ................................................. 392
Ad ditives .............................................4 64
Capacity .............................................. 465
Checking the oil le vel using the oil
dipstick ................................................ 391
Checking the oil le vel using the on-
board computer ................................... 392
MB-Fr eigabe or MB-Appr oval .............. .465
Quality ................................................. 465
To pping up ...........................................3 92
Entering characters
Fu nction/no tes ................................... 285
On theto uchpad .................................. 287
Using the controller ............................. 286 EQ Boost
Glide mode .......................................... 16 6
Operating saf ety .................................... 23
ERA-G LONA SS test mode
St arting/ending .................................. 352
ESC (Elect ronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist ................................. 188
Tr ailer stabilisation .............................. 188
ESP ®
(Electronic Stability Prog ram) ...... 185
Ac tivating/deactivating ...................... .188
Fu nction/no tes ................................... 185
EU general operating permit number ....456
Exterior lighting Care .................................................... 403
Ex terior lighting
see Lights
External device Locking (child saf ety lock) .................. .293 Index
557

Pa
rking lights .......................................... .127
Pa rking position
Outside mir rors ................................... 14 0
St oring the position of the passenger
outside mir ror using reve rsege ar ........ 141
Pa rking up ................................................ 182
PA SSENGER AIR BAGstatus display
see Automatic front passenger front
airbag shutoff
Pe destrian pr otection
see Active bonnet (pedestrian pr otection)
Pe rm issible axle load .............................. 456
Pe rm itted towing me thods .................... .422
Pe rsonalisation
see User profile
Pe trol ........................................................ 460
Pe ts in the vehicle .................................... .73
Phone book see Contacts
Picture form ats
see Video mode Picture settings
see Video mode
PIN pr otection
Swit ching on/off ................................ .294
Plastic trim (Care) ................................... 405
Playback options Selecting ............................................. 364
POI Selecting ............................................. 304
POI symbols Selecting ............................................. 323
Po we r supp ly
Switching on (S tart/S top button) ........ 147
Po we r windo ws
see Side windo ws
PRE-SAFE ®
(anticipatory occupant
pr otection) ................................................ .47
Fu nction ................................................ 47
PRE-SAFE ®
Sound ................................. 47
Re versing measures .............................. 48
PRE- SAFE®
PLUS (anticipa tory occu‐
pant pr otection plus) ................................ 48
Fu nction ................................................ 48 Re
versing measures .............................. 48
Pr ev entative occupant pr otection sys‐
tem
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
Pr ev ious destinations
Selecting ............................................ .304
Prog ramme in form ation
TV channel .......................................... .381
Prog rams
see DYNA MIC SELECT
Pr otection of the environment
No tes ..................................................... 21
Ta ke -ba ckof end-of-life vehicles ............ 21 Q
Qibla ......................................................... 326
QR code Rescue card .......................................... 28
Qualified specialist workshop .................. 27 568
Index