2017 MERCEDES-BENZ S-CLASS CABRIOLET service indicator

On-boar
dcomputer:
, Service .
Tyres
One of thef ollowing displa ysappears:
R Cur rent tyr epressur eofe achw heel:
R Tyre pressures will be displayed after afew
minutes of driving
R Tyre pressure monito ractive:t heteach-in
process of thes ystem is no tyet comple te.
The tyr epressures ar ealready being moni‐
to re d. #
Compar ethe tyr epressur ewitht he recom‐
mended tyr epressur efor thec urrent operat‐
ing condition (→ page 386). Obse rvet he
no tesont yret emperatur e(→pag e385).
% The values displa yedint he multifunction dis‐
pla ym aydeviat efromt hose of thet yrep res‐
sur egaug east heyr efer tosea le vel.At high
altitudes, thet yrep ressur evalues indicated
by pressur egauges ar ehigher than those
shown bytheo n-boar dcomputer .Inthis
case, do no treduce thet yrep ressure. Mak
esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
R Notesont yrep ressur e(→pag e385)
Rest arting thet yrep ress urem onitoring sys‐
tem
Requ irements:
R The recommended tyr epressur eisc orrectly
se tfor ther espectiv eoperating condition on
eac hoft hefour wheel s(→ pag e385).
Re star tt he tyr epressur emonitoring sy stem in
th ef ollowing situations:
R The tyr epressur ehaschanged.
R The wheels or tyres ha vebeen changed or
newl yfitted.
On-boar dcompu ter:
, Service .
Tyres #
Swipe down wardsont heTouc hC ontrol on
th el eft-hand side of thes teering wheel.
The Use curren tpressures as new reference
values messag eisshown in them ultifunction
displa y. #
Press atoconfir mtherestart.
The Run Flat Indicator restarted messageis
shown in them ultifunction displa y.
Cur rent wa rning messages ar edeleteda nd
the h yello ww arning lam pgoes out.
Af tery ou ha vedriven foraf ewminutes, the
sy stem checks whe ther thec urrent tyr epres‐
su resa rewithin thes pecified range. The cur‐
re nt tyr epressures ar ethen accep tedasr ef‐
erence values and monitored.
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
R Notesont yrep ressur e(→pag e385) 388
Wheels and tyres

Be sur
etoalso obse rvet he following fur ther
re lated subjects:
R Notesont yrep ressur e(→pag e385)
R Displa ymessages about thet yres
(→ pag e446)
Re starting thet yrep ress urel ossw arning
sy stem
Re quirement:
R The recommended tyr epressur eisc orrectly
se tfor ther espectiv eoperating condition on
eac hoft hefour wheel s(→pag e385).
On-boar dcompu ter:
, Service .
Tyres
The Run Flat Indicato ractiveRestart wit hOK
messag eisshown in them ultifunction displa y.
Re star tt he tyr epressur eloss warning sy stem in
th ef ollowing situations:
R The tyr epressur ehaschanged.
R The wheels or tyres ha vebeen changed or
newl yfitted. #
Press atobegin ther estart.
The Tyre pressure no wOK?messag eis
shown in them ultifunction displa y. #
Select Yes. #
Press atoconfir mtherestart.
The Run Flat Indicator restarted messageis
shown in them ultifunction displa y.
Af tery ou ha vedriven foraf ewminutes, the
tyr ep ressur eloss warning sy stem monitors
th es ettyr ep ressures of all thet yres.
Be sur etoalso obse rvet he following fur ther
re lated subjects:
R Notesont yrep ressur e(→pag e385) Wheel
change Note
sons electing, fittin gand replacing
tyres Mercedes
-AMG vehicles: observet he no tesin
th eS upplement .Otherwise, youm ayfailto rec‐
ognise dangers. Yo
uc an ask fori nformation rega rding permit ted
wheel/tyr ecombinations at aMercedes-Benz
Servic eCentre. &
WARNING Risk of accident du etoincor‐
re ct dimensions of wheel sand tyres
If wheel sand tyres of thew rong size are
used, thew heel brakes or wheel suspension
components ma ybecome damaged. #
Alw aysr eplace wheels and tyres with
th ose that fulfil thes pecification softhe
original part.
When replacing wheels, mak esuretof itthe
cor rect:
R Designation
R Type
When replacing tyres, mak esuretof itthe
cor rect:
R Designation
R Manufactu rer
R Type 392
Wheels and tyres

Displa
ymessages Int
roduction Note
sond isplaymessages
Displa ymessages appear on them ultifunction
displa y.
Displ aymessa gesw ithg raphic symbols ar esim‐
plified in theO wner's Manual and ma ydiffer
from thes ymbols on them ultifunction displa y.
The multifunction displa yshows high-priority dis‐
pla ym essages in red. Cer tain displa ymessages
ar ea ccompanied byaw arning tone.
Please respond in accordance wit hthe display
messages and follo wt he additional no tesint his
Owner's Manual.
Fo rs ome displa ymessa ges,as ymbol is also
shown:
R ¤ Further information R
O Hide displa ymessage
Yo uc an select thed esired symbol byswiping
lef torr ight on thel eft-hand touc hc ontrol .Press
the ¤ symbol tosho wfurther information on
th em ultifunction displa y.Press theO symbol
to hide thed ispla ymessage.
Yo uc an hide lo w-priority displa ymessages by
pressing the¤ button or thel eft-hand touch
cont rol. The displa ymessages ar ethen stored in
th em essag ememor y.
Re ctify thec ause of adispla ymessag eas
qu ickl yasp ossible.
High-priority displa ymessages canno tbehid‐
den. The multifunction displa yshows th ese dis‐
pla ym essages continuousl yuntil thec ause of
th em essag ehas been rectified. Calling up
storedd ispl aymessages
On-boa rdcompu ter:
, Service .
1m essage
If th er ea reno displa ymessages, No messages
appear sonthe multifunction displa y. #
Scrol lthrough thed ispla ymessages byswip‐
ing upwards or down wardsont he left-hand
to uc hc ontrol. #
Toexitth em essag ememor y:press the
¤ button. 416
Displaymessa gesa nd warning/indicator lamps

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

Key
Displa
ymessages
Possible causes/consequences and M
MSolutions
 Replace key *T
hekeyn eeds tobe replaced. #
Consult aqualified specialis tworks hop.
Replace key See Owner's
Manual *
Ve hicles with adigital vehicl ekeyinthes ma rtphone: onlyafew or no authorisations remain fors tartin gt he
engine. #
Mak esuret hat theI nterne tconnection is no tlimited bycer tain mobile phon esettings. #
Open theM ercedes me connect weba pp http://www.mercedes.me. and call up the" Digital Car Keyint he
smartphone" service. #
Deactivat ethe service firs ta nd then activat eitagain. #
Ifth ed ispla ymessag estilla ppears, con tact theM ercedes-Benz Cus tomer Assis tance Center (C AC).
 Change key batteries *T
hekeyb atte ry is dischar ged. #
Replace theb atter y. 448
Displaymessa gesa nd warning/indicator lamps

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