2017 MERCEDES-BENZ S-CLASS CABRIOLET warning

Opening/closing
theb onnet &
WARNING Risk of accident du etodriv‐
ing wit hthe engine bonne tunlo cked
An unloc kede ngin ebonn etma yopen up
when thev ehicle is in motion and bloc kyour
vie w. #
Neveru nloc kthe engine bonne twhen
driving. #
Befor eevery trip, ensur ethat the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing thee ngine
bonn et
When opening or closing thee ngine bonn et,
it ma ysuddenly drop int othe end position.
Ther eisar isk of inju ryfora nyo ne in the
engine bonn et's rang eofm ovement. #
Onlyopen or close thee ngine bonn et
when ther ea reno persons in the
engine bonn et's rang eofm ovement. &
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 Risk of inju rydue tomoving
parts
Cer tain component sinthe engine compart‐
ment ma ycontinue tomo veor suddenly
mo veagain evenafter thei gnition has been
switched off, e.g. thec ooler fan.
Ma kesur eoft hefollowing befor eperform ing
ta sk sint he engine compartment: #
Switc hthe ignition off. #
Nevertouc hthe danger zone sur round‐
ing movin gcomponent pa rts, e.g. the
ro tatio na reaoft hefan. #
Remo vejewe ller yand watches. #
Keep items of clo thing and hair away
from moving parts. &
WARNING Risk of inju ryfrom touching
co mp onent parts under voltage
The ignition sy stem and thef uel injection
sy stem workunder high voltage. If yout ouch
component parts whic hareunder voltage,
yo uc ouldrecei vean electric shoc k. #
Nevertouc hcomponents of thei gnition
sy stem or thef uel injection sy stem
when thei gnition is switched on. &
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, Maintenanc
eand care 347

th
er adiator and parts of thee xhau stsystem. #
Letthe engine cool down and only
to uc ht he component parts described
below: &
WARNING Risk of inju ryfrom using the
windscreen wiper swhile thee ngine bon‐
ne tiso pen
When thee ngine bonn etis open ,and the
windscreen wiper saresetinm otion, youc an
be trapped bythew iper linkage. #
Alw ayss witc hoffthew indscreen wip‐
er sa nd ignition befor eopening the
engine bonn et. #
Toopen: pull lever1torelease thee ngine
bonn et. #
Push bonne tcatch 1upwards and lif tthe
bonne tbyapproximatel y40cm. #
Toclose: lowe rthe bonne tand le titfall from
ah eight of appr oximatel y20cm. #
Ifth eb onnet canstill be lif teds lightl y,open
th eb onnet again and close it wit halittle
mor eforce until it engages cor rectly. 348
Maintenance and care

Engine oil
Checking
thee ngine oil le velw ithano n-
boar dcomputer
The engin eoil le velisd etermined during driving.
The oil le veld ispla yiso nlya vailable af terad riv‐
ing time of up to30 minutes and if thei gnition is
switched on, depending on thed riving profile.
It is no tpossible tocor rectl ym easu retheo il
le ve lif:
R thev ehicle is no tleve lduring them easuring
process.
R theb onnet wasp reviousl yopened.
The engin emustber estar teda nd thee ngine oil
le ve lw ill be de term ined again during driving.
On-boar dcomputer:
, Service .
Engine oil level:
Yo uw ills ee one of thef ollowing display
messa gesint he multifunction dis play: #
Engine oi llev el Measuring now:m easure‐
ment of theo il le velisn otyetp ossible.
Re peat ther eques tafter am aximu mof30
minutes' driving. #
Engine oil level OK andtheb ar displa yfor
indicating theo il le velint he multifunction
displa yisgreen and is between "min" and
"max": theo il le velisc orrect. #
Engine oil level Add 1.0 l andtheb ar display
fo ri ndicating theo il le velint he multifunction
displa yisorang ea nd is belo w"min": topup
wit h1lofe ngineoil. #
Reduce engin eoil level andtheb ar display
fo ri ndicating theo il le velint he multifunction
displa yisorang ea nd is abo ve"max": drain
of ft he exc ess engine oil. Consult aqualified
specialis tworks hop. #
For engine oil level turn on ignition:s witchon
th ei gnition tocheckt he engine oil le vel. #
Engine oil level System inoperative :sensor
fa ulty or no tconnec ted. Consult aqualified
specialis tworks hop. #
Engine oil level System currently unavail. :
close theb onnet. To
pping up engine oil &
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 Risk offire and injur yfrom
engine oil
If engine oil comes int ocontact wi thhot
component parts in thee ngine compart‐
ment ,itmayignite. #
Mak esuret hat no engine oil is spilled
next tothef iller opening. #
Allo wthe engine tocool of fand thor‐
oughl yclean thee ngine oil from compo‐
nentp arts befor estartin gt he vehicle. Maintenance and care
349

*
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

#
Mak esuret hat no windscreen washer
concentrat espills out next tothef iller
opening. #
Remo vecap 1bythet ab, place on thee dge
of thef iller opening and engag einplace. #
Topupt hewasher fluid. Cleaning and care
Informatio
nonwashingthe vehicl einac ar
wa sh &
WARNING Risk of an accident du eto
re duced braking po werafter wa shing the
ve hicle
Braking ef ficiency is reduced af terw ashing
th ev ehicle. #
Aftert he vehicle has been washed,
brak ecarefully while paying attention to
th et raffic condition suntilbraking
po we rhas been fully restored. To
avo id damag etoyourvehicle when using a
car wash, ensur ethe following beforehand:
R Toavo id possible wateringress in thev ehi‐
cle, it is preferable touse car washes which
allo wthe high-pressur epre-wash tobe deac‐
tivated (specification fort he Cabrio pro‐
gramme).
R It is imperativ etoavoid as ubsequent hot-
wa xtreatment. R
Remo vethek eyin order toensur ethat the
draught stop on thef ront windscreen
re tracts.
R ActiveD ista nce Assi stDISTRONI Candthe
HOLD functio naredeactivated.
R The 360° came raor ther eve rsing camer ais
switched off.
R The side windo wsand sof ttop ar eclosed
comple tely.
R The blo werfor thev entilation/heating is
switche doff.
R The windsc reen wiper switc hisinposition
g.
R In car washes wit hatowing mechanism: neu‐
tral iis engaged.
R The keyisata distance of at leas t3ma way
from thev ehicle, otherwise theb ootlid could
open unintentionally.
% If, af tert he car wash, your emo vethew ax
from thew indscreen and wiper rubber ,this
will pr event smearing and reduce wiper
noise. 352
Maintenanc eand care

Information on usin
gahigh-p ressur ecleaner &
WARNING Risk of an accident when
using high-pressur ecleane rswit hc ircu‐
lar je tnozzles
The wate rjet of ac ircula rjet nozzle (dirt
grinder) can cause extern all yinv isible dam‐
ag etot he tyres or chassis parts.
Component sdamaged in this wa ym ayunex‐
pec tedly fail. #
Do no tuse high-pressur ecleaner swith
circular je tnozzles toclean thev ehicle. #
Have damaged tyres or chassis parts
re placed immediatel y. To
avo id damag etoyourvehicle, obser vethef ol‐
lowing when using ahigh-pressur ecleaner:
R Keep thek eyat leas t3ma wayfromt he
ve hicle. Otherwise theb ootlid could open
unintentionall y. R
Maintain adista nce of at leas t30cmtot he
ve hicle.
R Vehicles with deco rativ efoil: parts of your
ve hicle ar ecove redw ithad ecorativ efoil.
Maintain adista nce of at leas t70cm
betwee nthe foil-c ove redp arts of thev ehicle
and then ozzle of theh igh pressur ecleaner.
Mo vetheh igh-pressur ecleaner nozzle
around whils tcleaning.
R Obser vethei nformation on thec orrect dis‐
ta nce in thee quipment manufacturer's oper‐
ating instructions.
R Do no tpoint then ozzle of theh igh-pressure
cleaner directly at sensitiveparts suc has
tyres, thes oftt op, thed raught stop net, slits,
electrical component parts, batteries, light
sources and ventilation sl ots. Wa
shing thev ehicle byhand Obser
vethel egal requ irements, e.g. in anumber
of countries, washing byhand is onl ypermitted
in specially designated wash ba ys. #
Use amild cleaning agent, e.g. car shampoo. #
Washthev ehicle wit hlukewa rmwate rusing
as oftc ar sponge. When doing so, do not
ex pose thev ehicle todirect sunlight. #
Carefully hose thev ehicle of fwithw ater and
dr yu sing achamois. Take car enot to point
th ew ater je tdirectl ytow ards thea ir inlet. Maintenanc
eand care 353

#
Clean draught stop net 1withad ampcloth
in conjunction wit hthe car eproducts and
cleanin gagentsr ecommende dand appr oved
by Mercedes-Benz. Cleaning
thef olding draugh tstop Re
quirements:
R Neveru se ah igh-p ressur ecleaner toclean
th en etof thew ind deflector. R
Obser vethen otes on thec orrect ins tallation
and stow ing location of thef olding draught
st op (→ page87). #
Clea nthe ne tofthefolding draught stop with
ad am pcloth in conjunction wit hthe care
products and cleaning agents recommended
and appr ovedbyM ercedes-Benz. Note
sonc areofc ar parts &
WARNING Risk of entrapment if the
windscreen wiper sareswit ched on while
th ew indscreen is being cleaned
If th ew indscreen wiper saresetinm otion
while youa recleanin gthe windscreen or
wiper blades, youc an be trapped bythe
wiper arm. #
Alw ayss witc hoffthew indscreen wip‐
er sa nd thei gnition befor ecleanin gthe
windscreen or wiperb lades. &
WARNING Risk of bu rnsf romt ailpipes
and tailpipe trim
The tailpipe and tailpipe trim can become
ve ry hot. If youc om eintoc ontact wit hthese
parts of thev ehicle, youc ould bur nyourself. #
Alw aysbep articular lycareful around
th et ailpipe and thet ailpipe trim. #
Allo wthe vehicle parts tocool down
befor eyou touc ht hem. 358
Maintenance and care