2018 MERCEDES-BENZ C-CLASS SALOON engine coolant

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 0007
Consult a qualified specialist workshop.
003A Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter needs tobe drained. 0007
Consult a qualified specialist workshop.
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
000E NO
TEEngine dama gedue toinsuf ficient coolant 0007
Avoid long journe yswith insuf ficient coolant. 0007
Add coolant (0013 page413).
003D Stop vehicle Leave engine
running *T
he battery charge leve l is too lo w. 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
Lea vethe engine running. 0007
Wait until the display message disappears before pulling away. Displ
aymessa ges and warning/indicator lamps 515

Display messages
Possible causes/consequences and 0050
0050Solutions
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. 0007
Switch off electrical consumers that are not required. 0007
Connect a suitable charge r appro vedby Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (0013 page 437).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. 0007
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y.
00AC *T
hefan mo tor is defective. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00AC
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 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. Display messages and
warning/indicator lamps 517

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Wait until the engine has cooled down. 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
th e coolant temp erature display remains below 120 °C.
00D7
Please wait Charging high-
voltage battery *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. 0007
Start the engine. 0007
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: 0007
Tryto start the engine again. 0007
Ifth e engine does not start, consult a qualified specialist workshop.
003D
48 V battery See Owner's
Manual *T
he 48 V sy stem is malfunctioning. Con venience functions may be restricted. 0007
Consult a qualified specialist workshop immediatel y.518
Displaymessa ges and warning/indicator lamps

Wa
rning and indicator lamps:
0058 Low beam (0013
page135)
0060 St
anding lights (0013 page135)
0057 High beam (0013
page137)
003E003D Tu
rn signal indicator
(0013 page137)
005E Re
ar fog light (0013 page135)
0075 Re
stra int sy stem (0013 page546)
00E9 Seat belt not
fastened
(0013 page 552)
004D Brakes (yellow) (0013
page546)
004D Brakes (red) (0013
page546)
0024 Electric pa
rking brake (yellow)
(0013 page546) 0024
Electric parking brake (red)
(0013
page546)
0025 ABS malfunction (0013
page 546)
00E5 ESP®
(0013 page 546)
00BB ESP®
OFF (0013 page546)
L Distance warning (0013 page 552)
00CC Po
we r-assis tedsteering malfunction
(0013 page 557)
00CC AIRMATIC malfunction
(0013
page 552)
00CC DY
NA MIC BODY CONTROL malfunc‐
tion (0013 page 552)
00B9 Engine diagnostics (0013
page 553)0028
Preglow
003D Electrical
fault( 0013 page 553)
00B6 Fu
elreser vewith fuel filler flap loca‐
tion indicator (0013 page 553)
00AC Coolant
too hot/cold
(0013 page 553)
0077 Ty
re pressure monitor
(0013 page 556)
00CA Tr
ailer hit chis not operational or is
swivelling(0013 page 557)Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and 0050 0050Solutions
004D The
red brake sy stem warning lamp is lit while the engine is running.
Po ssible causes:
R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected. 546
Displaymessa ges and warning/indicator lamps

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. 554
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 page413). 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 555

Climate
style
Fu nction .............................................. 157
Setting ................................................. 157
Cockpit ........................................................ .6
Overview .................................................6
Cof fee cup symbol
see ATTENTION ASSIST
Collapsible spare wheel .......................... 469
No tes .................................................. 469
COMAND Online see Multimedia sy stem
COMAND Touch
Managing devices ................................ 311
Combination switch ................................137
Compass .................................................. 345
Compu ter
see On-board computer
Connection status
Displ aying ............................................ 374
Overview ..............................................3 74Connectivity
Swit ching transmission of theve hicle
position on/off .................................... 308
Contacts ................................................... 354
Calling up ............................................ 355
Deleting ............................................... 356
Downloading (from mobile phone) ...... 355
Importing ............................................ 356
Importing (o verview) .......................... .355
Information .......................................... 354
Making a call ....................................... 356
Na me form at ...................................... .355
Options ................................................ 356
St oring ................................................ 356
Controller Operating ............................................ 299
Con venience closing ................................. 90
Con venience opening ................................ 90
Coolant (engine) Check le vel .......................................... 413
No tes .................................................. 483
Cooling see Climate control Co
pyright .................................................... 31
Cornering light ........................................ .139
Cross Traf fic Alert .................................... 251
Crosswind Assist Function/no tes ................................... 207
Cruise control .......................................... 214
Ac tivating ............................................ .216
Buttons ................................................ 216
Calling up a speed .............................. .216
Deactivating ......................................... 216
Fu nction ............................................... 214
Re quirements ...................................... 216
Selecting .............................................. 216
Setting a speed .................................... 216
St oring a speed .................................... 216
Sy stem limitations ...............................2 14
Cup holder Rear .................................................... .128
Cup holder in the centre console
In stalling/removing ............................ .127
ins talling/ removing (auto matic
transmission) ....................................... 12 6 Index
567

Ad
aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 544
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .544
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .544
0099 AdBlue sy stem fault Engine
st art not possible ................................ 523
0099 AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 523
0099 AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................. .523
0099 AdBlue sy stem fault See Own‐
er's Manual ........................................ .522
00B2Ad d 1 litre engine oil when next
re fuelling ............................................. 521 Apply brake
todeselect Park (P)
position ...............................................5 25
Apply brake toselect R ........................ 527
00ADAT TENTION ASSIST inoperative ....511
00AD ATTENTION ASSIS T:Take a
break! .................................................. 507
0049Au tomatic driving lights inoper‐
ative .................................................... 542
Au xilia rybattery malfunction .............. 525
0044Before starting the engine, turn
th esteering wheel. .............................. 527
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 505
Blind Spot Assist inope rative ............... 506
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...5 09
Brake immediate ly............................... 491
Cannot start engine See Owner's
Manual ................................................ .517
00AF Changekey bat teries .................. 534 004DCheck brake
fluid le vel................ 496
Check brake pads See Owner's Man‐
ual ...................................................... .504
00B2Che ckeng. oil le v.when next
re fuelling ............................................. 521
00CAChe cktrailer hitch lo ck(white
display message) .................................5 36
Che cktyre pressu resth en restart
Ru n Flat Indicator ................................ 532
0077Check tyre(s) ............................... 530
003AClean the fuel filter ...................... 51 5
Clutch overheated Avoid pulling away
fo r XX:XX mins .................................... 526
00ACCoolant Stop vehicle Switch
engine off ............................................. 517
Cruise cont rol and Limiter inope ra‐
tive ....................................................... 512
Cruise cont rol inope rative .................... 512
Cruise cont rol off ................................ .512 57 0
Index