maintenance MERCEDES-BENZ S-CLASS COUPE 2017 Owners Manual

This jeopardises
theo perating and road
saf etyoft hevehicle. #
Stow all object sinthevehicle securely
so that they canno tget intot he driver's
fo ot we ll. #
Alw aysf itth ef loor mats securel yand
as prescribed in order toensur ethat
th er eisa lway ss ufficient room fort he
pedals. #
Do no tuse loose floor mats and do not
place floor mats on topofo ne ano ther. *
NO
TEBatter ydisch arging from using
device sconnected tothed iagnostics
connection Using devices at
thed iagnostics connection
drains theb atter y. #
Chec kthe charge leve loft he batter y. #
Ifth ec har geleve lisl ow,charg ethe
batter y,e.g. bydriving aconsiderable
dis tance. Connecting equipment
tothed iagnostics con‐
nection can lead toemissions monitoring infor‐
mation being reset, fore xamp le. This ma ylead
to thev ehicle failing tomee tthe requ irements of
th en exte missions inspection during them ain
inspection. Qualified specialis
tworks hop
Aq ualified specialis tworks hop has then eces‐
sar yspecial skills, tools and qualification sto
cor rectl yc arry out an ynecessar yworkony our
ve hicle. This particularly applies towo rkreleva nt
to saf ety.
Alw aysh ave thef ollowing workcar ried out on
yo ur vehicle at aqualified specialis tworks hop:
R workreleva nt tosaf ety
R service and maintenance work
R repair work
R modifications as well as ins tallation sand
con versions
R workon electronic components Mercedes‑Benz
recommends aMercedes‑Benz
service centre. Ve
hicl eregistration
Mercedes-Ben zmayask its service centres to
car ryout tech nica linspections on cer tain vehi‐
cles. The qualit yors afet yoft hevehicle is
impr ovedasar esult of thei nspection.
Mercedes-Benz can onl yinfor myou aboutv ehi‐
cle checks if Mercedes-Benz has your registra‐
tion data.
It is possible that your vehicle has no tyet been
re gis tere diny our name in thef ollowing cases:
R Ifyo ur vehicle wasn otpur chased at an
authorised specialis tdealer.
R Ifyo ur vehicle has no tyet been examined at
aM ercedes-Ben zservic ecentre.
It is advisable toregis tery our vehicle wit ha
Mercedes-Benzs ervice centre.
Infor mMercedes-Benz as soon as possible
abouta nychang eina ddress or vehicle owner‐ 26
General no tes

eral acceleration
,displa yoft hefast ened seat
belts)
R malfunctions or defectsini mportant sy stem
components (e.g. lights, brakes)
R information on vehicle damag eevents
R system reaction sinspecial drivin gsituations
(e.g. airbag deployment, inter ventio nofs ta‐
bilit ycontrol sy stems)
R ambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding thea ctual control unit
function ,this dat aassists them anufacturer in
de tecting and rectifying faults and optimising
ve hicle functions. The majority of this dat ais
te mp orar yand is onl yprocessed in thev ehicle
itself. Onl yasmall portion of thed ataiss tored
in thee vent or fault memor y.
When your vehicle is serviced, tech nica ldata
from thev ehicle can be read out byservice net‐
wo rkemplo yees or thirdp arties .Services
include repair services, maintenanc eprocesses,
wa rrant yevents and qualit yassurance meas‐
ures, fore xamp le. The read out is per form ed via
th el egall yprescribed por tfor OBD ("on-board diagnostics"
)inthevehicle. The respective
service networ klocations or thirdp arties col‐
lect ,proces sand use thed ata. The ydocument
te ch nica lstatuses of thev ehicle, assis tinfind‐
in gf aults and impr oving qualit yand ar etrans‐
mit tedtot he manufacturer ,ifnecessar y.Fu r‐
th ermore, them anufacturer is subject toprod‐
uct liability .For this, them anufacturer requ ires
te ch nica ldataf romv ehicles.
Fa ult memories in thev ehicle can be rese tbya
service outle taspartofr epair or maintenance
wo rk.
The ycan enter dat aintot he vehicle's con veni‐
ence and inf otainment function sthemselves as
par toft he selected equipment.
This includes, fore xamp le:
R multimedia dat asuchasm usic,films or pho‐
to sf or playbac kinanintegrated multimedia
sy stem
R address book dat afor use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
R entered navigation destinations
R dataabout theu se of Interne tservices This dat
acan be stored locally in thev ehicle or
is located on adevice whic hyou ha veconnected
to thev ehicle. If this dat aisstore dint hevehi‐
cle, youc an dele teit at an ytime. This dat acan
onl ybet ransmit tedtot hirdp arties upon your
re qu estw ithp articular rega rd tothes cope of
use of online services according to your selected
settings.
Yo uc an stor eorc hangeconvenience settings/
individualisations in thev ehicle at an ytime.
Depending on thee quipment, this includes, for
ex ample:
R seat and steering wheel position settings
R suspension and climat econtrol settings
R individualisations suc hasinterior lighting
If yo ur vehicle is accordingly equipped,y ou can
connect your smartphon eoranother mobile end
device tothev ehicle. Youc an cont rolthem via
th ec ontrol element sintegrated in your vehicle.
Images and audiof romt he smartphone can be
output via them ultimedia sy stem. Cer tain infor‐
matio nissimultaneousl ytransmit tedtoy our
smartphone. 28
General no tes

R
thes tarter batter yissufficientl ychar ged.
% Youc an also se tthe temp eratur ewithy our
smartphone. Information on Mercedes me
connec tand other services: http://
www.mercedes.me
Charging theb attery befor ecommencing
yo ur journey
% This function is no tavailable in all countries.
R Ifth ev ehicle batter yisdischarged, you
re cei veam essag eony our smartphone.
R Youc an then star tt he vehicle wit hthe
smartphone tocharge theb atter y.
R The vehicle is automaticall yswitched off
af te rt en minutes.
Ensur ethe following befor estarti ngthee ngine:
R thel egal stipulation sinthe area wher eyour
ve hicle is par keda llowe ngin estartin gv ia
smartphone.
R it is saf etostart and runt he engine where
yo ur vehicle is par ked.
R thef uel tank is su fficientl yfilled. St
arting thev ehicle &
WARNING Risk of crushing or entrap‐
ment du etounintentional startin goft he
engine
Limbs could be crushed or trapped if the
engine is star tedu nintentionall yduring
service or maintenanc ework. #
Alw ayss ecur ethe engine agains tunin‐
te ntional startin gbefor ecarrying out
maintenance or repair work. Re
quirements:
R parkposition jis selected.
R thea nti-th efta larms ystem is no tactivated.
R thep anic alar misnotactivated.
R theh azar dwarning lamps ar eswitched off.
R theb onnet is closed.
R thed oor sareclosed and loc ked.
R thew indo wsand slidin gsunroof ar eclosed. #
Startt he vehicle using thes martphone: R
afte re very vehicle start, thee ngine runs for
te nm inutes.
R youc an car ryout amaximum of tw oconsec‐
utiv estartin ga ttem pts.
R youc an stop thev ehicle again at an ytime.
R further information can be found in the
smartphone app.
Securing thee ngine agains tstarting be fore
car rying out maintenance or repair work: #
switc hont he hazar dwarning lamps.
or #
unloc kthe doors.
or #
open aside windo worthe sliding sunroof. Ru
nning-in no tes Mercedes-AMG
vehicles: observet he no tesin
th eS upplement .Otherwise, youm ayfailto rec‐
ognise dangers. 15 0
Driving and pa rking

ASS
YSTP LUSs ervice in terv al display Fu
nction of theA SSYSTP LUSs ervice in terv al
display The ASS
YSTP LUSs ervice inter vald ispla yint he
instrument display prov ides informatio nonthe
re maining time or dis tance be fore then ext
service due date.
Yo uc an hide this service messag eusing the
bac kbutton on thel eft-hand side of thes teering
wheel.
Yo uc an obtain fur ther information concerning
th es ervicing of your vehicle from aqualified
specialis tworks hop, e.g. aMercedes-Benz
Service Centre. Displaying
thes ervice du edate On-boa
rdcomputer:
, Service .
ASSYST PLUS
The next service due dat eisdisplayed. #
Toexitth ed ispla y:press theb ackb utton
on thel eft-hand side of thes teering wheel. Mak
esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
R Operating theo n-boar dcomputer . Car
rying out maintenance workatregular
inter vals *
NO
TEPrematur ewear thro ugh failur eto
obser veservice due dates Service
workwhic hisn otcar ried out at the
ri ght time or incomple tely can lead to
inc reased wear and damag etothevehicle. #
Alw ayso bser vethep rescribed service
inter vals. #
Alw aysh ave thep rescribed service
wo rkcar ried out at aqualified specialist
wo rkshop. Special service
requ irements The prescribed service inter
valisb ased on nor‐
mal operation of thev ehicle. Maintenance work
will nee dtobep erform ed mor eoften than specified if
thev ehicle is operated under ardu‐
ous conditions or increased loads, fore xamp le:
R regular city driving wit hfrequ ent intermedi‐
at es tops.
R ifth ev ehicle is primaril yused fors hort-dis‐
ta nce driving.
R forf requ ent operation in mountainou sterrain
or on poor road sur faces.
R ifth ee ngine is of tenl eftidling forl ong peri‐
ods.
R in particula rlyd usty condition sand/o rifair-
re circulation mod eisfrequently used.
In these or similar operating conditions ,have the
interior filter ,engin eair cleaner ,engin eoil, oil fil‐
te re tc. changed mor efrequ ent ly.T he tyres must
be checkedm oref requ entl yift hevehicle is
operated under increased loads. Further infor‐
mation can be obtained at aqualified specialist
wo rkshop. 358
Maintenance and care

Batter
ydisconnection periods The AS
SYST PLUS service inter vald isplay
can onl ycalculat ethe servic edue date when
th eb attery is connected. #
Notedown thes ervice due dat edispla yedon
th ei nstrument displa ybefor edisconnecting
th eb atter y(→pag e358). Engine compartment
Ac
tiv eb onne t(pedestrian pr otection) Operation of
thea ctiv ebonne t(pedestrian
pr otection)
In cer tain accident situations ,the risk of injury
to pedestrians can be reduced bythea ctuation
of thea ctiv ebonnet .The rear area of thee ngine
bonn etisraised byappr oximatel y80m m.
Fo rthe driv etotheworkshop, rese tthe trig‐
ge reda ctiv ebonn etyourself .Ifthe activ ebonnet
has been triggered, pedestrian pr otection may
be limited.
Aq ualified specialis tworks hop mus tre-ins tate
th ef ull functionality of thea ctiv ebonnet. The activ
ebonne tisnotavailable in all coun‐
tries.
Re setting thea ctiv ebonnet &
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: #
With your han dflat, push down activ ebonnet
1 inthea reaa round theh inges on bo th
sides (ar rows).
The engine bonne tmuste ngag einp osition. #
Ifth ea ctiv ebonnet can be raised slight lyat
th er ear in thea reaoft he hinges, repeat the
st ep until it engages cor rectl y. Maintenance and care
359

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. Maintenance and care
361

Engine oil
Checking
thee ngine oil le velu sing theo il
dip stick(S4 50 4MATIC) &
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: Depending on
thee ngine, theo il dipstic kmaybe
ins talled in thee ngine compartmen tindiffe re nt
locations.
Wa itin gtimeb efor echecking theo il le vel:
R engin eatn ormal operatin gtemperature: five
minutes. #
Park thev ehicle on aflat sur face. #
Pull oil dipstick 1outa nd wipe off. #
Slowly slide oil dipstick 1intot he guide
tube tothes top, and pull it out again af ter
appr oximatel ythree seconds.
R Oil le velisc orrect:o il le velisb etwe en 2
and 3.
R Oil le veltoo low: oil le velisat 3or
belo w. R
Oil le veltoo high: oil le velisa bove 2 . #
Ifth eo il le velist oo lo w,topupw ith1 lof
engin eoil. #
Ifth eo il le velist oo high, ha vethee xcess
engine oil remo vedass oon as possible at a
qu alified specialis tworks hop.
Checking thee ngine oil le velu sing theo n-
boar dcompu ter( exc eptS4 50 4MATIC)
The engine oil 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 estarted and thee ngine oil
le ve lw ill be de term ined again during driving. 362
Maintenance and care

#
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 (→ page427) 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. #
Mak esuret hat no windscreen washer
concentrat espills out next tothef iller
opening. Maintenance and care
365

#
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 ActiveD ista nce Assi stDISTRONI Candthe
HOLD functio naredeactivated.
R The 360° came raor ther eversing camera is
switched off.
R The side windo wsand slidin gsunroof are
comple tely closed. R
The bl owerfort he ventilation/heating is
switched off.
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. Information on using
ahigh-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. 366
Maintenance and care

Note
sonp aintwork/matt finish paint workcare Obser
vethef ollowing information: Cleaning and car
eA voiding paintwor kdamage
Pa intwork R
Insect remains: soak wit hinsect remo vera nd rinse of fthe
treated areas af terw ards.
R Birdd roppings: soak wit hwater an drins eo ffafte rw ards.
R Coolant, brak efluid, tree resins, oils, fuel and greases:
re mo veby gently rubbing wit hacloth soaked in petroleum
et her or lighter fluid.
R Tars tains :use tarr emo ver.
R Wax: us esilico neremo ver. R
Do no tattac hstickers,f ilms or similar.
R Remo vedirtimmediatel y,wher epossible.
Mat tfinish R
Onlyuse car eproducts appr oved byMercedes-Benz. R
Do no tpolish thev ehicle and light-allo ywheels.
R Onlyuse car washes that cor respond tothel ates tengi‐
neering standards.
R Do no tuse car wash programmes wit hafinalhot wax
treatment.
R Do no tuse paint cleane rs,b uffing or polishing products,
gl oss preser vers,e .g. wax.
R Alw aysh ave paintwor krepair scarried out at aqualified
specialis tworks hop. 368
Maintenance and care