engine coolant MERCEDES-BENZ S-CLASS CABRIOLET 2017 Owners Manual

Instrument displa
yoverview &
WARNING Risk of accident du etoan
instrumen tdispla ymalfunction
If th ei nstrument displa yhasfailed or mal‐
functioned, youm aynotrecognise function
re strictions applying tosaf etyr ele vant sys‐
te ms.
The operating saf etyofy ourvehicle ma ybe
impaired. #
Driv eonc arefull y. #
Have thev ehicle checkedi mmediately
at aq ualified specialis tworks hop. Mercedes‑AMG
vehicles: observet he no tesin
th eS upplement .Otherwise, youm ayfailto rec‐
ognise dangers.
If th eo perating saf etyofy ourvehicle is
impaired, par kthe vehicle safel yassoon as pos‐
sible. Contact aqualified specialis tworks hop. Instrument display
1
Speedome ter
2 Multifunction display
3 Revc ounter
4 Coolant temp eratur edisplay
5 Fuel le vela nd fuel filler flap locatio nindica‐
tor
% This displa yisanexamp le. In stead of rev
counter 3other displa ysarea lso possible.
The segment sinspeedome ter1 indica tethe
sy stem status fort he following:
R Cruise control (→ page172) R
Limi ter( →pag e173)
R ActiveD ista nce Assi stDISTRONIC
(→ page 176)
Ve hicles with Traf ficS ign Assis t:de tected
instructions and traf fics igns appea rinthe
speedome ter( →pag e207).
* NO
TEEngine dama gedue toexcessively
hig he ngine speeds The engine will be damaged if
youd rive with
th ee ngine in theo verrev ving range. #
Do no tdrive with th eengine in theo ver‐
re vving range. In
revc ounter 3theo verrev ving rang eiss hown
in red. When theo verrev ving rang eisr eached,
th ef uel supply is inter rupte dtop rotect the
engine.
During normal operating conditions ,coolant
te mp eratur edisplay 4mayrise to120° C. 218
Instrument Displa yand on-boar dcomputer

*
NO
TEEngine damag ecaused byan
incor rect oil filter ,incor rect oil or addi‐
tives #
Do no tuse engine oil soroilfilters
whic hdon otcor respond tothes pecifi‐
cation sexplicit lyprescribed fort he
service inter vals. #
Do no talter thee ngine oil or oil filter in
order toachie velonger chang einter vals
th an presc ribed. #
Do no tuse additives. #
Followt he instructions in thes ervice
inter vald ispla yregarding theo il
ch ange. *
NO
TEDama gecaused bytopping up too
muc hengine oil To
pping up toom uche ngine oil can cause
damag etothe engine or thec atalytic con‐
ve rter. #
Have excess engine oil remo vedata
qu alified specialis tworks hop. #
Turn cap 1anti-clockwise and remo veit. #
Topupt he engine oil. #
Replace cap 1and tur nitclockwise as far
as it will go. #
Chec kthe oil le vela ga in . Checking
thec oolant le vel &
WARNING Danger of bu rnsf romh ot
component parts in thee ngine compart‐
ment
Cer tain component parts in thee ngine com‐
partmen tmaybe very hot, e.g. thee ngine,
th er adiator and parts of thee xhau stsystem. #
Letthe engine cool down and only
to uc ht he component parts described
below: &
WARNING Danger of bu rnsf romh ot
coolant
The engine cooling sy stem is pressurised,
particularly when thee ngine is warm.Ify ou
open thec ap, youc ould be scalded byhot
coolant spr aying out. #
Letthe mo torc ool down befor eopening
th ec ap. #
When opening thec ap, wearglove sand
pr otectiv eeyewe ar. 350
Maintenanc eand care

#
Slowly tur nthe cap half aturntoa llow
pressur etoescape. #
Park thev ehicle on alevel sur face. #
Chec kthe coolant temp eratur edispla yint he
instrument clus ter.
The coolant temp eratur emustbeb elow
70 °C. #
Slowl yturnc ap 1 anti-clockwise torelie ve
exc ess pressure. #
Continue turning cap 1anti-clockwise and
re mo veit.
The coolan tleve lisc orrect:
R ifth ee ngine is cold up tomar kerb ar2
R ifth ee ngine is warm upto1.5c mo ver
mar kerb ar2 #
If necessar y,topupw ithc oolant that has
been appr ovedbyM ercedes-Benz.
R Further information on coolant (→ page415 ) To
pping up the windsc reen washer sy stem &
WARNING Danger of bu rnsf romh ot
component parts in thee ngine compart‐
ment
Cer tain component parts in thee ngine com‐
partmen tmaybe very hot, e.g. thee ngine,
th er adiator and parts of thee xhau stsystem. #
Letthe engine cool down and only
to uc ht he component parts described
below: &
WARNING Danger of bu rnsw hen open‐
ing theb onnet
If yo uo pen thee ngine bonn etwhen the
engine has overheated or during afireint he
engine compartment, youc ould come into
contact wit hhotgases or other escaping
operating fluids. #
Befor eopening theb onnet ,allowt he
engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep thee ngine bonn et
closed and cal lthe fire service. &
WARNING ‑Riskoff irea nd injur ydue to
windscreen washer concentrate
Wi ndsc reen washer concentrat eishighly
fl ammable. It coul dignit eifitc omes into
con tact wi thhote ngine component parts or
th ee xhau stsystem. Maintenanc
eand care 351

Note
sonb rake fluid Obser
vethen otes on operating fluids
(→ pag e409). &
WARNING Risk of an accident du eto
va pour poc kets form ing in theb rake sys‐
tem
The brak efluid cons tantl ya bsorbs moi sture
from thea ir.T his lo werstheb oiling point of
th eb rake fluid. If theb oiling point is tool ow,
va pour poc kets ma yformint he brak esys‐
te mw hen theb rake sa reapplied hard.
This impair sthe braking ef fect. #
Have theb rake fluid rene we datt he
specified inter vals. Ha
ve theb rake fluid regularly changed at aquali‐
fi ed specialis tworks hop.
Onl yuse brak efluid appr ovedbyM ercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0. Fu
rther information on brak efluid:
R intheM ercedes-Benz Specification sfor
Operating Fluids at http://be vo.mercedes-
benz.com
R ataq ualified specialis tworks hop Coolant
Note
sonc oolant
Obser vethen otes on service products
(→ pag e409). &
WARNING Risk offire ‑a nd inju ryfrom
antifreeze
If antifreeze comes int ocontact wit hhot
component parts in thee ngine compart‐
ment ,itmayignite. #
Allo wthe engine tocool down before
yo ut op up thea ntifre eze. #
Mak esuret hat no antifreeze spills out
next tothef iller opening. #
Thoroughl yclean thea ntifre eze from
componen tparts befor estartin gt he
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Onlyadd coolant that has been pre‐
mixed wit hthe requ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
R IntheM ercedes-Benz Specification sfor
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
R Ataq ualified specialis tworks hop. *
NO
TEOverheating at high outsid etem‐
peratures If an inappropriat
ecoolant is used, the
engine cooling sy stem is no tsufficientl ypro‐
te cted agains toverheating and cor rosion at
high outside temp eratures. Te
ch nica ldata 413

#
Alw aysu se coolant appr ovedby
Mercedes-Benz. #
Obser vethei nstruction sinthe
Mercedes-BenzS pecificationsforO per‐
ating Fluids 310.1. Ha
ve thec oolant regularly changed at aqualified
specialis tworks hop.
The proportion of cor rosion inhibitor/antifreeze
concentrat einthe engine cooling sy stem should
be:
R am inimum of 50% (antifreeze pr otection
down toappr oximatel y-37 °C).
R am aximum of 55% (antifreeze pr otection
down to-45 °C). Note
sonw indscreen washer fluid Obser
vethen otes on operating fluids
(→ pag e409). &
WARNING ‑Riskoff irea nd injur ydue to
windscreen washer concentrate
Wi ndsc reen washer concentrat eishighly
fl ammable. It coul dignit eifitc omes into
con tact wi thhote ngine component parts or
th ee xhau stsystem. #
Mak esuret hat no windscreen washer
concentrat espills out next tothef iller
opening. *
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids #
Do no tmix MB SummerFit and MB Win‐
te rFit wit hother windscreen washer flu‐
ids. Do no
tuse distilled or de-ionised waterast hefill
le ve ls ensor ma ybetriggered er roneously.
Re commended windscreen washer fluid:
R Abo vefreezing point :e.g. MB SummerFit
R Belo wfreezing point :e.g. MB WinterFit Fo
rthe cor rect mixing ratio refertot he informa‐
tion on thea ntifre eze conta iner.
Mix thew ashe rfluid wit hthe windscreen washer
fl uid all year round. Ve
hicl edata Ve
hicl edimensions The heights speci
fied ma yvaryasar esult of the:
R tyres
R load
R condition of thes uspension
R optional equipment 414
Tech nica ldata

Engine
Displa
ymessages
Possible causes/consequences and M
MSolutions
Top up coolant See Own-
er’s Manual *T
he coolant le velist oo lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswit hinsuf ficient coolant. #
Addc oolant .
?
Coolant Stop vehicle
Switc hengin eoff *T
he coolant is tooh ot. #
Stop thev ehicle immediately ,paying attention toroad and traf ficc onditions ,and switc hoffthee ngine. &
WARNING Danger of bu rnsw hen opening theb onnet
If yo uo pen thee ngine bonn etwhen thee ngine has overheated or during afireint he engine compartment, you
could come int ocontact wi thhotg ases or other escaping operating fluids. #
Befor eopening theb onnet ,allowt he engine tocool down. #
Inthee vent of afireint he engine compartment, keep thee ngine bonn etclosed and cal lthe fire service. #
Wait until thee ngine has cooled down. #
Mak esuret hat thea ir supply tother adiator is no tobstructed. #
Avoiding high loads on thee ngine, driv eontothe neares tqualified specialis tworks hop. In doing so, ensur ethat
th ec oolant temp eratur edispla yremain sbelo w1 20 °C. Displ
aymessa gesa nd warning/indicator lamps 441

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
redc oolant warning lam pislit while thee ngine is running.
Po ssible causes:
R The temp eratur esensor is malfunctioning
R Coolant le veltoo low
R The air suppl ytotheradiator is obstructed
R The radiator fani sfaulty
If th er eisana dditional warning tone, thec oolant temp eratur ehasexceeded 120° C. &
WARNING Danger of bu rnsw hen opening theb onnet
If yo uo pen thee ngine bonn etwhen thee ngine has overheated or during afireint he engine compartment, you
could come int ocontact wi thhotg ases or other escaping operating fluids. #
Befor eopening theb onnet ,allowt he engine tocool down. #
Inthee vent of afireint he engine compartment, keep thee ngine bonn etclosed and cal lthe fire service. #
Stop thev ehicle immediately ,paying attention toroad and traf ficc onditions ,and switc hoffthee ngine. Do no tcon‐
tinue driving under an ycircums tances. #
Obser vethem essages in them ultifunction displa y.
If th ec oolant temp eratur edispla yisatt he lowerend of thet emperatur escale: #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 473

Switching on/of
f................................. 131
THERMOTRONIC contro lpanel ............ 131
Ve ntilating thev ehicle (con venience
opening) ................................................ 81
Climat estyle
Fu nctio n.............................................. 13 2
Setting ................................................. 13 2
Cockpit ........................................................ .4
Overvie w.................................................4
Collapsible spa rewheel .......................... 402
In flatin g............................................... 403
No tes. ................................................. 402
Re moving ............................................ 403
COMAND Online see Multimedi asystem
COMAND Touch
Managing devices ................................ 254
Combinatio nswitch
see Turn signal light
Compass .................................................. 287
Connection status
Displ aying ............................................ 315
Overvie w..............................................3 14Contacts
.................................................. .296
Calling up ............................................ 296
Deleting ............................................... 298
Downloading (from mobile phone) ...... 296
Importing ............................................. 297
Informatio n.......................................... 296
Making acall ....................................... 298
Na me form at ...................................... .297
Options ................................................ 298
St oring ................................................ 298
Controller Operating ............................................ 24 2
Con venience closing ................................. 81
Con venience opening ................................ 81
Coolant (engine) Levelc hec k......................................... 350
No tes. .................................................. 413
Copyright .................................................. .33
Cornering light ........................................ .121
Cross Traf ficA lert .................................. .205
Crosswind Assist Function/no tes. ................................... 167Cruise control
.......................................... 172
Buttons ................................................ 174
Callin gupas peed............................... 174
Fu nctio n............................................... 172
Re quirements: ...................................... 174
Selecting .............................................. 174
Setting aspeed .................................... 174
St oring aspeed .................................... 174
Switching of f........................................ 174
Switching on ........................................ 174
Sy stem limitations ...............................1 72
Cup holder ................................................ 111
Fitting/removing (centr econsole) ........ 111
Re ar .................................................... .112 D
Dashboa rd
see Cockpit
Dashboar dlighting
see Instrument lighting
Data acquisition Vehicle ................................................... 31
Data import/export Function/no tes. .................................. 256 484
Index

Ac
tiveb onnetm alfunctio nSee Own‐
er' sM anual ......................................... 455
Ac tiveB rake Assi stFunctions cur‐
re ntl ylim ited See Owner' sManual ...... 427
Ac tiveB rake Assi stFunctions limited
See Owner' sManual ........................... 427
Ac tiveD ista nce Assi stavailable
again .................................................. .438
Ac tiveD ista nce Assi stcur rently
una vailable See Owner's Manual .........438
Ac tiveD ista nce Assi stinope rative ...... 438
Ac tiveL aneK eeping Assis tcurrently
una vailable See Owner's Manual .........435
Ac tiveL aneK eeping Assis tinopera‐
tive ...................................................... 435
bAc tiveL ight Sy stem inoperative .. 459
Ac tiveP arking Assis tand
PA RKTRONI Cinoperati veSee Own‐
er's Manual ......................................... 437 Ac
tiveS teering Assis tcurrently
una vailable See Owner's Manual .........438
Ac tiveS teering Assis tinoperative .......439
Ad aptiv eHighbeam Assis tPlus Cam‐
er av iewr estricted See Owner's
Manual ................................................. 461
Ad aptiv eHighbeam Assis tPlus cur‐
re ntl yu navailable See Owner's Man‐
ual ...................................................... .461
Ad aptiv eHighbeam Assis tPlus inop‐
erative ................................................ .461
App lybrak etod eselect Park (P)
position ...............................................4 50
ÀAT TENTION ASSIS Tinoperative ... 433
ÀAT TENTION ASSIS T:Take a
break! .................................................. 433
bAU TOlight sinope rative ............... 460
Au xilia rybatter ymalfunction .............. 452
Blind Spo tAssis tcurrentl yu navaila‐
ble See Owner's Manual ...................... 436 Blin
dSpotA ssis tinope rative ............... 436
ÂChan gekeyb atteries .................. 448
J Checkbrake fluid le vel.............. .426
4Che ckeng. oil le v.when next
re fuelling ............................................. 443
h Checktyre(s) .............................. .445
J Close boo tsepa rator .................. 458
K Convertible TopO peration pos‐
sible to60 km/h ................................. 458
?Coolant Stop vehicle Switch
engine off ............................................ 441
Cruise cont rola nd Limiter inope ra‐
tive ...................................................... 439
Cruise control inope rative ................... 439
Cruise control off ................................ 439
!cu rrently unavailable See Own‐
er's Manual .......................................... 41 8
÷ currentl yu navailable See Own‐
er's Manual ........................................ .420
K Decreas espeed ......................... 457 486
Index