2017 MERCEDES-BENZ E-CLASS CABRIOLET engine coolant

Display messages
Possible causes/consequences and M
MSolutions
ð Maximum speed exceeded *T
he maximum permissible speed has been exceeded (only for cer tain countries). #
Drive more slowl y. Engine
Display messages
Possible causes/consequences and M
MSolutions
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. #
Add coolant . Display messages and
warning/indicator lamps 431

Display messages
Possible causes/consequences and M
MSolutions
? Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. &
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. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. 432
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
? *T
hefan mo tor is defective. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. 440
Displaymessa ges and warning/indicator lamps

;
Engine diagnosis (→
page 474)
8 Fu
elreser vewith fuel filler flap loca‐
tion indicator (→ page474)
? Coolant
too hot/cold (→ page474) ·
Dis
tance warning (→ page471)
% Preglow
h Ty
re pressure monitoring sy stem
(→ page 477) j
Tr
ailer hit chis not operational or is
swivelling (→ page472) Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
J Brake sy stem warning lamp The
yellow brake sy stem warning lamp is lit while the engine is running. &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and continue todrive carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, please obse rveth is. #
Consult a qualified specialist workshop. 464
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? 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 Coolant le velto o 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. &
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. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
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. #
Obser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 475

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Otherwise: #
Lea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down. #
Check the coolant le vel . #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. 476
Displaymessa ges and warning/indicator lamps

Ac
tivating/deactivating the synchro‐
nisation function (multimedia sys‐
te m) ..................................................... 13 2
Air di stribution settings ........................ 131
Air-reci rculation mode ........................ .132
Au tomatic control ................................ 131
Climate style function .......................... 131
Demi sting the windo ws....................... 13 2
Demi sting the windscreen ...................1 29
Fr ont air vents ..................................... 13 8
Glo vebox air vent ................................ 13 9
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 13 3
ionisation ............................................ .132
Re ar air vents ...................................... 13 9
Re ar operating unit .............................. 12 9
Re sidual heat ....................................... 13 2
Setting the air distribution ...................1 29
Setting the air flow ............................... 12 9
Setting the climate style ......................1 31
Setting the fragrance sy stem ............... 13 2
Setting thete mp erature ......................1 29
St ationary heater/ ventilation .............. 13 4
Switching on/off ................................. 13 0
Switching there ar wind owheater
on/off .................................................1 29THERMATIC control panel ....................
12 9
THERMOTRONIC contro l panel ............12 9
Ve ntilating theve hicle (con venience
opening) ................................................ 75
Climate style
Fu nction ............................................... 131
Setting ................................................. 131
Cockpit ........................................................ .5
Overview .................................................5
COMAND Online see Multimedia sy stem
COMAND Touch ....................................... 262
Child saf ety lock .................................. 262
Managing devices ................................ 262
COMAND Touch App
see COMAND Touch
Combination swit ch
see Turn signal light
Compass .................................................. 287
Computer .................................................2 27
Connection status
Displ ays ............................................... 315
Overview ..............................................3 15Contacts
.................................................. .294
Calling up ............................................ 294
Deleting .............................................. .296
Downloading (from mobile phone) ....... 294
Importing ............................................ 295
Information .......................................... 294
Making a call ....................................... 295
Na me form at ...................................... .295
Options ................................................ 295
Saving ................................................. 295
Controller Operating ............................................. 251
Conv enience closing ................................ .76
Con venience opening ................................ 75
Coolant (engine) Levelch eck .......................................... 351
No tes ................................................... 414
Cooling see Climate control
Copyright .................................................... 24
Cornering light ........................................ .117
Cross Traf fic Alert .................................. .208 Index
485

Blind Spot Assi
stnot available when
to wing a trailer See Owner's Manual ...4 26
ÂChange key bat teries .................. 446
Ø Check AdBlue See Owne r’s
Manual ................................................ 438
4Check eng. oil le v.when next
re fuelling ............................................. 435
jChe cktrailer hitch lo ck............... 449
h Check tyre(s) .............................. .442
!Clean the fuel filter .................... .438
J Close boot sepa rator .................. 460
ÉCompressor is cooling ................ 423
K Convertible Top Operation pos‐
sible to60 km/h ................................. 459
?Coolant Stop vehicle Switch
engine off ............................................ 432
Cruise contro l and Limiter inope ra‐
tive ...................................................... 430
Cruise control inope rative ................... 430
Cruise control off ................................ 430 Dis
tance Pilot available again .............. 428
Dis tance Pilot cur rently una vailable
See Owner's Manual ...........................429
Dis tance Pilot inope rative .................... 429
È .................................................... 430
ØEng. start not possible in XXX
km ...................................................... .439
ØEng. start not possible ................ 439
5Engine oil le vel cannot be
measured ............................................ 437
4Engine oil le velRe duce oil le vel...4 36
4Engine oil le velSt op vehicle
Switch engine off ................................ 435
4Engine oil pressure Stop Switch
off engine ............................................ 437
_Example: Front left seat back‐
re st not lo cked ................................... 457
bExample: Left dipped beam ........ 460
6Example: Left windowbag mal‐
function Consult workshop ................. 420 Example:
Parking Pilot Parking can‐
celled ................................................ .427
_ Example: Rear left seat back‐
re st not lo cked ................................... 457
Fa ult Drive at max. 80 km/h ...............423
bIntelligent Light Sy stem inoper‐
ative ..................................................... 461
ÂKe y not de tected (red displ ay
messa ge).............................................4 47
 Key not de tected (white displ ay
messa ge).............................................4 46
Let fresh air into theve hicle interior!
Air conditioning malf. Visit workshop .. 453
Limiter inoperative .............................. 430
Limiter passive .................................... 429
É Lowe ring ..................................... 421
A Malfunction Consult workshop ... 458
bMalfunction See Owner's Man‐
ual .......................................................4 61
ð Maximum speed exceeded ..........4 31 488
Index