engine MERCEDES-BENZ C-CLASS CABRIOLET 2018 Owners Manual

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning
004D
Brake sy stem warning lamp
(yellow) The
yellow brake sy stem warning lamp is lit while the engine is running. 000A
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. 0007
Drive on carefull y. 0007
Have the brake sy stem checked immediately at a qualified specialist workshop. 0007
Adjust your speed and continue todrive carefull y,leaving a suitable dis tance totheve hicle in front. 0007
Ifth e multifunction display sho wsa display message, please obse rveth is. 0007
Consult a qualified specialist workshop.
00E5 ESP ®
wa rning lamp flashes The
yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
At least one wheel and tyre assembly has reached its traction limit (0013 page185). 0007
Adapt your driving style to suit thero ad and weather conditions. Display messages and
warning/indicator lamps 531

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00E5 ESP ®
wa rning lamp lights
up The
yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. 000A
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems are
switched off. 0007
Drive on carefull y. 0007
Have ESP ®
ch ecked at a qualified specialist workshop. 0007
Drive on carefully. 0007
Obser vethe messages on the multifunction displa y. 0007
Consult a qualified specialist workshop.
00BB ESP ®
OFF warning lamp The
yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deacti vated. 000A
WARNING Risk of skidding when driving wi thESP ®
deacti vated
If ESP ®
is deactivated, ESP ®
cannot car ryout vehicle stabilisation. The availability of fur ther driving saf ety sy stems
is also limited. 532
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions 0007
Drive on carefull y. 0007
Only deactivate ESP ®
for as long as the situation requ ires.
If ESP ®
cannot be activated, ESP ®
is malfunctioning. 0007
Have ESP ®
ch ecked immediately at a qualified specialist workshop. 0007
Obser vethe no tes on deactivating ESP ®
(0013 page185).
0075
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 (0013 page 33). 000A
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. 0007
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. 0007
Drive on carefully. 0007
Obser vethe messages on the multifunction displa y. 0007
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 533

Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
0076 Seat belt warning lamp
lights up The
red seat belt warning lamp will light up once the engine has star ted.
In addition, a warning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. 0007
Fasten your seat belt (0013 page37).
If yo u ha veplaced objects on the front passenger seat, the seat belt warning lamp may remain lit.
0076 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. 0007
Fasten your seat belt(0013 page37).
There are objects on the front passenger seat. 0007
Remo vethe objects from the front passenger seat. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00CC The
yellow AIRMATIC warning lamp is on.
The yellow DYNA MIC BODY CONTROL warning lamp is on.
There is a fault with the AIRMATIC. 534
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
Suspension warning lam pT here is a fault in theDY NA MIC BODY CONTROL. 0007
Obser vethe messages on the multifunction displa y.
L
Wa rning lamp for dis tance
wa rning function The
red dis tancewarning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. 0007
Be prepared tobrake immediatel y. 0007
Increase the dis tance.
Fu nction of Active Brake Assi st . Engine
Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00B9 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. 0007
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. Displ
aymessa ges and warning/indicator lamps 535

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions 0007
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.
003D Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
There is a fault in the electrics. 0007
Obser vethe messages on the multifunction displa y.
00B6
Fu elreser ve wa rning lamp The
yellow fuel reser vewarning lamp is lit while the engine is running.
The fuel supply has dropped into there ser verange. 0007
Refuel.
00AC
Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. 536
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions 000A
WARNING Danger of bu rns when opening 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 wi thhot 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 compartment, keep the engine bonn etclosed and call thefire service. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. 0007
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: 0007
Consult a qualified specialist workshop.
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 394). 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. Displ
aymessa ges and warning/indicator lamps 537

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
Ty re pressure monitoring
sy stem warning lamp
fl ashes 000A
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
If th e tyre pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss in
one or more of the tyres.
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ 0007
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. 0007
Consult a qualified specialist workshop. 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. Display messa
ges and warning/indicator lamps 539

Ac
tive Lane Keeping Assist .................... 24 0
Ac tivating/deactivating ...................... .242
Ac tivating/deactivating thewa rning .... 24 3
Fu nction .............................................. 24 0
Setting the sensitivity .......................... 24 3
Sy stem limitations ...............................2 40
Tr ailer operation .................................. 24 0
Ac tive Parking Assist .............................. 227
Cross Traf fic Alert ............................... 232
Drive AwayAssi st................................ 231
Exiting a pa rking space ...................... .230
Fu nction .............................................. 227
Manoeuvring assi stance ...................... 233
Pa rking ................................................ 228
Sy stem limitations ...............................2 27
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 203
Display ................................................ 203
Fu nction .............................................. 203
Ac tive Steering Assist ............................ .205
Ac tivating/deactivating ...................... .207
Ac tive Emergency Stop Assist .............2 09
Ac tive Lane Change Assi st.................. 208 Displa
ysinthe instrument display .......2 09
Fu nction .............................................. 205
Sy stem limitations ...............................2 05
Ad aptive brake lights ..............................19 5
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 .............................................. 13 2
Switching on/off ................................. 13 3
Ad aptive Highbeam Assist Plus
Switching on/off ................................. 13 5
Ad Blue ®
.................................................... 463
Ad ditives .............................................4 63
Capacity .............................................. 464
Fill le vel .............................................. .255
No tes ................................................... 171
Purity ................................................... 463
Ra nge .................................................. 255
To pping up ...........................................1 72
Ad ditional door lo ck.................................. 78Ad
ditional value range
Setting display content ........................ 253
Ad diti ves.................................................. 464
Ad Blue ®
............................................... 463
Engine oil ............................................. 464
Fu el ...................................................... 461
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 ... 386
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ... 386
Ad justing treble, mid- range and bass
settings
Burmes ter®
sur round sound sy stem ... 386 542
Index

Anti-theft ala
rmsystem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Ad ditional door lock .............................. 78
Immobiliser ...........................................96
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™ ....................................... 342
Connecting an iPhone ®
....................... 342
Ending .................................................3 43
No tes .................................................. 342
Overview ............................................. 342
Sound settings .................................... 343
Tr ans ferred vehicle data ......................3 45
Ashtr ay
Fr ont centre console ........................... 12 2
Re ar passenger compartment ............ .122
Using ................................................... 12 2Assistance sy
stems
see Driving saf ety sy stem
Assistant display Menu (on-board computer) .................. 255
ASS YST PLUS ........................................... 387
Battery disconnection pe riods .............3 88
Displ aying the service due date ........... 387
Fu nction/no tes ................................... 387
Re gular maintenance work .................. 387
Special service requ irements .............. 387
ATA (anti-theft ala rmsystem) .................. 96
Deactivating the alarm .......................... 97
Fu nction ................................................ 96
Fu nction of interior pr otection ............... 98
Priming/deactivating interior pr otec‐
tion ........................................................ 99
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 98
To w- aw ay protection function ................97
AT TENTION ASSI ST......................... 233, 234
Fu nction .............................................. 233
Setting ................................................. 234
Sy stem limitations ...............................2 33At
tention assistant
see ATTENTION ASSIST
Au dio mode
Connecting USB devices ..................... 364
Co pyrights ...........................................3 61
Information ..........................................3 60
Inserting/removing an SD card ........... 361
Media sea rch ....................................... 367
Overview ............................................. 363
Pa use and playback function .............. .364
Selecting a track ................................. 364
Selecting pl ayback options .................. 364
Switching on media mode ...................3 61
Tr ack list .............................................. 364
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 8
Au tomatic engine start (ECO start/
sto p function) .......................................... 154
Au tomatic engine stop (ECO start/
sto p function) .......................................... 154544
Index