coolant MERCEDES-BENZ E-CLASS CABRIOLET 2018 User Guide

Engine
Display messagesPossible causes/consequences and 0050Solutions
&KHFN &RRODQW /HYHO 6HH
2SHUDWRU
V 0DQXDO *T
he coolant le vel is too lo w.
0075 NO
TEEngine damage duetoinsuf ficient coolant
00BBAv oid long journe yswith insuf ficient coolant.
00BBAd d coolant.
00AC
&RRODQW 7RR +RW 6WRS 9HKL
FOH 7XUQ (QJLQH 2II *T
he coolant is too hot.
00BBPull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
0071
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could
come into contact with hot gases or other escaping operating fluids.
00BBBefore opening the hood, allow the engine tocool down.
00BBIntheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
00BBWa it until the engine has cooled down.
00BBMake sure that the air supply tothera diator is not obstructed.
00BBAv oiding 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 there d area.
Display messages and warning/indicator lamps 421

Displaymessages
Possible causes/consequences and 0050Solutions
00B2
&KHFN (QJLQH 2LO $W 1H[W
5HIXHOLQJ*T
he engine oil le vel has dropped tothe minimum le vel.
0075 NO
TEEngine damage causedbydriving with insuf ficient engine oil00BBAv oid long journe yswith insuf ficient engine oil.
00BBCheck the engine oil le vel when next refueling.
To p up the engine oil (
→page 318).
No tes on engine oil (
→page 389).
00B6
)XHO /HYHO /RZ *T
he fuel supply has dropped into there ser verange.
00BBRe fuel.
00B6
*DV &DS /RRVH *T
here has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is
leaking.
00BBClose the fuel filler cap.
00BBIf th e fuel filler cap was already proper lyclosed: consult a qualified specialist workshop.
00AC
*T hefan mo tor is defective.
00BBAv oiding 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 there d marking.
424
Display messages and warning/indicator lamps

00B6Fu
elreser vewith fuel filler flap loca‐
tion indicator (→page 455) 00AC
Coolant
too hot/cold (→page 455)
00BA Dis
tance warning (
→page 453) 0077
Ti
re pressure monitoring sy stem
(→page 459)
Display messages and warning/indicator lamps 44
5

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
00AC
Coolantwarning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes are:RThe temp erature sensor is malfunctioning
RCoolant le velto o low
RThe air supply tothera diator is obstructed
RThe radiator fan is de fective
If th ere is an additional warning tone, the coolant temp erature has exceeded the maximum permissible temp erature.
0071
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could come
into contact with hot gases or other escaping operating fluids.
00BBBefore opening the hood, allow the engine tocool down.
00BBIntheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
00BBPull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances.
00BBObser 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:
00BBConsult a qualified specialist workshop.
Display messages and warning/indicator lamps 457

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
Otherwise:
00BBLea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down.
00BBCheck the coolant le vel.
00BBMake sure that the air supply tothera diator is not obstructed.
00BBAv oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below there d area.
458
Display messages and warning/indicator lamps

Activating/deactivating the synchro‐
nization function (cont rol panel) .......... 126
Ac tivating/deactivating the synchro‐
nization function (multimedia sys‐
te m) ..................................................... 126
Ad justing the climate style settings ..... 126
Air di stribution settings ...................... .126
Air-recirculation mode ......................... 127
Au tomatic control ................................ 125
Climat est yle function .......................... 126
Defrosting the windo ws....................... 126
Defrosts the windshield ....................... 124
Dual-zone au tomatic climate control
panel .................................................... 124
Filling capacity forPA G oil .................. .393
Fr ont air vents ..................................... 128
Glo vebox air vent ................................ 129
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 127
Ionization ............................................. 127
Re ar air vents ...................................... 129
Re ar operating unit .............................. 124
Re frigerant .......................................... 392
Re frigerant filling capacity .................. .393
Re sidual heat ....................................... 127
Sets the air flow .................................... 124 Setting
the air distribution .................. .124
Setting the fragrance sy stem ............... 127
Se tting
thete mp erat
ure ....................... 124
Switching there ar wind owheater
on/off .................................................. 124
Ve ntilating theve hicle (con venience
opening) ................................................ 73
Climate style
Fu nction .............................................. 126
Setting ................................................. 126
Cockpit ........................................................ .6
Overview .................................................6
COMAND see Multimedia sy stem
COMAND Touch
Managing devices ................................ 236
Combination switch see Turn signals
Compass .................................................. 268
Computer On-board computer ............................. 200
Connection status
Display ing ............................................ 288 Overview ............................................
.288
Contacts ................................................... 274
Callin g up ............................................ 275
Del eting .............................................. .276
Downloading (from mobile phone) ....... 274
Importing ............................................. 276
Information .......................................... 274
Making a call ................................. ......
276
Na me form at .

..................................... .275
Options ................................................ 276
St oring .................................................2 76
Controller Operating ............................................ 224
Con venience closing feature .................... 74
Con venience opening ................................ 73
Coolant (engine) Checking le vel ...................................... 319
Filling capacity ..................................... 391
No tes ................................................... 391
Cooling see Climate control
Co pyright
Licenses ................................................ 29
Index 467

Adaptive Highbeam Assist Inopera‐
tive ...................................................... 442
Air Conditioning Malfunction See
Ope rator's Manual ...............................4 34
Apply Brake toShift from 'P' ............... 432
00ADAT TENTION ASSIST Inoperative ...413
00ADAT TENTION ASSIS T:Take a
Break! .................................................. 413
0049Au toLamp Function Inoperati ve
............................................................. 442
Au xilia ryBattery Malfunction .............. 434
Blind Spot Assist Currently Una vaila‐
ble See Opera tor's Manual .................. 416
Blind Spot Assist Inoperative...............417
Blind Spot Assist NotAv ailable When
To wing a Trailer See Operator's Man‐
ual ........................................................ 417
0027Check Brake Fluid Le vel.............. 405
Check Coolant Le vel See Operator's
Manual ................................................ 421 00B2Check Engine Oil
AtNext Refu‐
eling .................................................... 424
0049Che ckLeft Low Beam (Exam‐
ple) ...................................................... 441
Check Tire Pressure Soon ...................425
0077Che ckTire s ................................. 427
00B2Check Washer Fluid .................... 439
0059 Convertible Top Lo wering ........... 440
0059 Convertible Top Oper
ationPos‐
sible to35 mph................................... 440
00AC

Coolant Too Hot Stop Vehicle
Tu rn Engine Off .................................... 421
Cruise Control Canceled ..................... 420
Cruise Control Inoperati ve.................. 420
0025Cur rently Una vailable See Oper‐
ator's Manual ...................................... 397
00E5Cur rently Una vailable See Oper‐
ator's Manual ...................................... 398
00AFDon't Forget Your Key.................. 43 1Driver'
sDoor Ope n &Transmission
No t in P Risk of Vehicle Rolling Away .. 432
006FExample: Front Left Seat Back‐
re st Not Loc ked .................................. 435
0075Example: Left Side Cur tain Air‐
bag Malfunction Service Required ...... 407
0075Fr ont Left Malfunction Service
Re quired (Example) .............................. 410
Fr ont Passenger Airbag Disabled See
Operator's Manual ...............................4 11
Fr ont Passenger Airbag Enabled See
Operator's Manual ...............................4 12
00B6Fu el Level Low ............................ .424
00B6Gas Cap Loose ............................ 424
0025Inoperative See Operator's
Manual ...................................... ...
....... 396
00E5Inoperative See Operator's
Manual ................................................ 399
007AInoperative See Operator's
Manual ................................................ 400
470
Index

On-board computer................................. 209
Assis tance graphic menu .................... 204
Displaying the service due date ........... 314
Media menu ........................................2 08
Menu designs ...................................... 210
Menus .................................................2 00
Multifunction display ........................... 202
Na vigation sy stem menu ..................... 206
Operating ............................................ 200
Ra dio menu ........................................ .207
Service menu ...................................... 203
Te lephone menu .................................. 208
Tr ip menu ............................................ 204
On-board diagnostics interface
see Diagno stics connection
Open-source software .............................. 29
Opening the trunk lid using your foot
HANDS-FREE ACCESS .......................... .69
Operating fluids
Ad ditives (fuel) .................................... 389
Brake fluid .......................................... .390
Coolant (engine) .................................. 391
Engine oil ............................................ 389
Fu el (gasoline) .................................... .388 No
tes ................................................... 387
R
e frigerant (air conditioning sy stem) ... 392
Wi ndshield washer fluid ...................... .391
Operating saf ety
48 V on-board electrical system ............ 22
Declaration of confo rmity (wireless
ve hicle components) ............................. 23
Information ............................................ 22
Operating sy stem
On-board computer ............................ .200
Operator's Manual Vehicle equipment ................................. 20
Operator's Manual (digital) .......................18
Outside mir rors ........................ 120, 121, 122
Anti-gla remode (auto matic) ................1 21
Au tomatic mir rorfo lding function ........ 123
Fo lding in/out .................................... .120
Pa rking position .................................. .122
Setting ................................................. 120
Using the memory function .................. .98
Overhead control panel Overview ................................................ 12P
Pa int code ................................................ 385
Pa intwork (cleaning instructions) .......... 324
Pa nel heating
Setting ................................................... 94
Pa nic alarm ................................................ 58
Ac tivating/deactivating ......................... 58
Pa rk position
Selecting ............................................. 140
Selecting au tomatical ly....................... 140
Pa rking .................................................... .152
Pa rking
see Electric parking brake
Pa rking aid
see Parking Assist PARKTRONI C
Pa rking Assist
Maneuvering assis tance ...................... 189
Pa rking Assist PARKTRONIC ................... 175
Ad justing warning tones ...................... 178
Fu nction ............................................... 175
Side impact pr otection ........................ .176
Switching off ....................................... 177
482
Index

Overview ............................................. 298
Settings ............................................... 299
VIN ............................................................ 385
Identification plate .............................. 385
Seat ..................................................... 385
Wi ndshield ........................................... 385
Vi sibility
Defrosting the windo ws....................... 126
Vo ice command types (Voice Control
Sy stem) .................................................... .213
Vo ice Control Sy stem .............................. 212
Application specific voice commands .. 213
Au dible help functions .........................2 14
Entering numbe rs................................ 214
Global voice commands ...................... .213
Impr oving speech quality .................... .214
Langua gesetting ................................. 214
Media pla yervo ice commands ............ 220
Message voice commands .................. 220
Multifunction steering wheel (operat‐
ing) ...................................................... 212
Na vigation voice commands ................ 216
Operable functions .............................. 213
Operating saf ety .................................. 21
2 R
a
dio voice commands ........................ 219
Switch voice commands ...................... 214
Te lephone voice controls .................... .218
Te xt message voice commands .......... .220
Ty pes of voice commands .................... 213
Ve hicle voice commands .................... .221
Vo ice prom pting .................................. .213
W
Wa rning lamp
see Warning/indicator lamps
Wa rning sy stem
see ATA (anti-theft alarm sy stem)
Wa rning/indicator lamp
0025ABS warning lamp ...................... .448
0027Brake warning lamp (USA) .......... .446
004DBrakes warning lamp (Canada) .... 446
00ACCoolant warning lamp ................ .457
00BADis tance warning lamp ................ 454
003DElect rical malfunction warning
lamp .................................................... 455
00B9Engine diagnosis warning lamp .. .455 00BBESP
®OFF
warning lamp .............. 450
00E5ESP®wa rning lamp flashes ........ .448
00E5ESP®wa rning lamp lights up ...... .449
00B6Fu elreser vewarning lamp .. 455, 456
00CCPo werst eering sy stem warning
lamp .................................................... 454
0024Re d indicator lamp, electri c
parking brake applied (Canada only) .... 451
0049Re d indicator lamp, electri c
parking brake applied (USA only) ........ .451
0075Re stra int sy stem warning lamp .. .452
0076Seat belt warning lamp flashes .. .453
0076Seat belt warning lamp lights
up .................................. ...
................... 453
00CCSuspension warning lamp .......... .453
0077Ti repressure monitoring sys‐
te m wa rning lamp flashes .................. .460
0077Ti repressure monitoring sys‐
te m wa rning lamp lights up ................ .459
494
Index