service MERCEDES-BENZ S-CLASS COUPE 2017 Repair Manual

Note
sont echnical data
Mercedes-AMG vehicles: observet he no tesin
th eS upplement .Otherwise, youm ayfailto rec‐
ognise dangers.
The tech nica ldataw as de term ined in accord‐
anc ewithEUD irectives. The dat astatedo nly
applies tovehicles wit hstandar dequipment .You
can obtain fur ther information from aMercedes-
Benz Service Centre.
Onl yfor certain count ries: youc an find vehi‐
cle-specific vehicle dat ainthe COC documents
(CERTIFIC ATEOFC ONFORMITY) .These docu‐
ments ar edelivered wi thyour vehicle. On-boar
delectronics Note
sont ampering with thee ngine elec‐
tronics *
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance ma
ycause vehicle
componentstow ear morequickl yand the ve
hicle's operating permit ma ybeinvalida‐
te d. #
Alw aysh ave workon thee ngine elec‐
tronics and related component scarried
out at aqualified specialis tworks hop. *
NO
TEIncreased wear and tear or dam‐
ag ec aused bymeasu resu nder take nto
inc rease per form ance Engin
emanagemen tmeasures unde rtaken to
inc rease per form anc ecan lead toinc reased
we ar and tear or damag etothe driv esystem. #
Do no tunder take engine management
measures toinc rease per form ance. Tw
o-w ayradios Note
sonf itting two- wayradios &
WARNING Risk of accident du eto
improper workon two-w ayradios
The elect romagnetic radiation from two-w ay
ra dios can inter fere wit hthe on-boar delec‐
tronics if RF transmit ters arem anipulated or
re trofitted inco rrectly.
This could jeopardise theo perating saf etyof
th ev ehicle. #
Yous hould ha veall workon electrical
and electronic component scarried out
at aq ualified specialis tworks hop. &
WARNING Risk of accident from incor‐
re ct ope ratio noft wo-way radios
If yo uo perat etwo -way radios inco rrectly in
th ev ehicle, thee lectromagnetic radiation
could inter fere wit hthe on-boar delectronics,
e.g.: Te
ch nica ldata 417

#
Youm usta void fire ,n aked flames ,cre‐
atin gspar ksand smoking. #
Befor erefuelling ,switc hoffthee ngine
and auxiliar yheating if your vehicle is
equipped wit hauxiliary heating. &
WARNING Risk of inju ryfrom fuel
Fu els ar epoisonous and harmful to your
health #
Do no tswa llowf uel or le titcomeinto
contact wit hskin, eyes or clo thing. #
Do no tinhale fuel vapour. #
Keep children away from fuel.
If yo uoro ther people come int ocontact with
fuel, obser vethef ollowing: #
Immediatel yrins efueloffyo ur skin with
soap and water. #
If fuel comes int ocontact wit hyour
ey es, immediatel yrins ethem thor‐
oughl ywithc lean water.Seek medical
attentio nimmediately. #
Ifyo us wallowf uel, seek medical atten‐
tio nimmediatel y.Do no tinduce vomit‐
ing. #
Chang eimmediately out of clo thing that
has com eintoc ontact wi thfuel. +
ENVIRONMENTAL
NOTEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal #
Dispose of operating fluids in an envi‐
ro nmentally responsible manner. Service products include
thef ollowing:
R fuels
R lubricants
R coolant
R brak efluid
R washer fluid
R climat econtrol sy stem refrigerant
Only use products app rove dbyM ercedes-Benz.
Damag ecaused bytheu se of products that ha ve no
tb eena pprove disn otcoveredbyt he
Mercedes-Benzw arrant yorg oodwill gestures.
Yo uc an identif yservic eproducts appr ovedby
Mercedes-Benzbyt hefollowing insc ript ions on
th ec ontainer:
R MB- Freigabe (e.g. MB-Fr eigabe 229.51 )
R MB-Appr oval (e.g. MB-App rova l2 29.51)
Fu rther information on appr ovedservice prod‐
ucts:
R intheM ercedes-Benz Specification sfor
Servic eProducts at http://b evo.mercedes-
benz.co m(byentering thed esignation)
R ataq ualified specialis tworks hop Fu
el Information on fuel
grades forv ehicles with
ap etro le ngine
Obser vethen otes on operating fluids
(→ pag e421). 422
Tech nica ldata

*
NO
TEDama gecaused bythew rong fuel Even small amounts of
thew rong fuel could
re sult in damag etothe fuel sy stem, the
engine and thee mission control sy stem. #
Onlyrefuel using unleaded fuel that
con form stoEN2 28, or an equivalent
speci fication.
Fu el of this specification ma ycontain up to
10 %e thanol. Your vehicle is suitable foru se
wit hE 10 fuel.
Do no trefuel using:
R diesel
R E85, E100
R petrol containing me thano l(M15, M30,
M85 ,M100)
R petrol wit hadditives con tainin gm etal
If yo ua cciden tally refuel wit hthe wrong fuel: #
do no tswitc hthe ignition on. #
consult aqualified specialis tworks hop. Re
commende dfuel:th er ecommende doctane
number fory our vehicle can be found in the
instruction label in thef uel filler flap
(→ pag e160).
If th ea vailable fuel is no tsufficientl ylow in sul‐
phu r,th is can produce unpleasant odours.
S4 50 4MATIC: onlyrefuel using super unleaded
petrol wit hatleast 98 RON,ifyo uw ish toach‐
ie ve maximu mengine output. Alternatively ,you
can also refuel using premiu mgrade petrol with
at lea st95 RON.
Al lm odels: asatemporar ymeasure, if ther ec‐
ommended fuel is no tavailable, youm ayalso
use regular unleaded petrol wit hanoctane num‐
ber of at leas t91RON. This ma yreduce engine
output and increase fuel consum ption.
Ne verrefuel using petrol wit halowerRON.
Fu rther information on fuel can be found:
R atafilling station
R ataq ualified specialis tworks hop
Information on additives in petrol
Obser vethen otes on service products
(→ pag e421). *
NO
TEDama gecaused bynon-app roved
additives Even small amounts of
thew rong additive
ma ylead tomalfunctions occur ring. #
Only ad dcleaning additives recommen‐
ded byMercedes-Benztot he fuel. Mercedes-Benz
recommends that youu se
brand-name fuels wit hadditives.
The fuel grade available in som ecountries may
no tbes ufficient. Residue could buildupint he
fuel injection sy stem as aresult. In this case, in
consultation wit haMercedes-Benz Service
Cent re,the fuel ma ybemixed wit hthe cleaning
additiv erecommende dbyMercedes-Benz. Be
sur etoo bservethen otes and mixing ratios
speci fied on thec ontainer.
Ta nk capacit yand reser vefuel le vel
The total capacity of thef uel tank ma yvary,
dependin gonthevehicle equipment. Te
ch nica ldata 423

Model
Total capacity
Al lm odels 80.0 l Of whi
chreser ve
fuel
All model s8 .0 lEngine oil
Note
sone ngine oil
Obser vethen otes on service products
(→ pag e421). *
NO
TEEngine dama gecaused 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. #
Have thee ngine oil rene we datr egular
inter vals. Mercedes-Benz
recommends that youh avet he
oil chang ecarried out at aqualified specialist
wo rkshop.
Onl yM ercedes-Benz appr ovedengin eoils may
be used in Mercedes-Ben zengines.
Fu rther information on engine oils and oil filters:
R intheM ercedes-Benz Specification sfor
Servic eProducts at http://b evo.mercedes-
benz.co m(byentering thed esignation) R
ataq ualified specialis tworks hop
Pet role ngines: forc ertain countries, dif fere nt
engine oils can be used in conjunctio nwith
re duced maintenanc einter vals.
% Further information on dif fere nt engine oils
can be ob tained at aqualified specialist
wo rkshop.
Quality and filling capacity of engine oil
MB- Freigabe or MB -Appr oval Model
MB-Freigabe or MB-
Appr oval
S4 50 4MATIC 229.5, 229.6
All other models 229.52, 229.61 If
th ee ngine oils lis tedint hetable ar enotavail‐
able, youm ayadd amaximum of 1.0l ofthef ol‐
lowing engine oils once only:
R MB-F reigabe or MB-Appr oval 229. 3or
AC EA A3/B3
The following values refertoano ilch ange,
includin gthe oil filter. 424
Tech nica ldata

Re
placement amount Mode
lR eplacement
amount
S4 50 4MATIC 6.5l
All other models 9.0 lNote
sonb rake fluid Obser
vethen otes on operating fluids
(→ pag e421). &
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 e421). &
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
ch nica ldata 425

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. 428
Displa ymessages and 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 453

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. 460
Displa ymessages and 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. 484
Displa ymessages and warning/indicator lamps

Fu
nctio n.............................................. 187
Setting ................................................. 222
Ac tiv eS teering Assist ............................ .190
Ac tivating/deactivating ...................... .192
Ac tiveE mergency Stop Assis t.............1 93
Ac tiveL aneC hangeA ssist .................. 19 2
Displ aysint he Instrument Displa y.......1 94
Fu nctio n.............................................. 19 0
Sy stem limitations ...............................1 90
Ad aptiv ebrake lights .............................. 180
Ad aptiv ecruise control
see ActiveD ista nce Assi stDISTRONIC
Ad aptiv eHighbeam Assis tPlus
Ac tivating/deactivating ...................... .125
Fu nctio n............................................... 124
Ad ditional doo rlock .................................. 66
Ad diti ves .................................................. 424
Engine oil ............................................. 424
Fu elling ................................................ 423
Ad diti ves( engine oil)
see Additives
Ad diti ves( fuel)
see Fuelling Ad
dres sbook
see Contacts
Ad justin gthe balance/ fader
Burmes ter®
high-end 3D sur round
soun dsystem. ..................................... 356
Burmes ter®
sur round soun dsystem. .. 355
Ad justin gthe bass, mid- rang ea nd
treble
Burmes ter®
high-end 3D sur round
soun dsystem ...................................... 356
Ad justin gthe mid- range, treble and
bass
Burmes ter®
high-end 3D sur round
soun dsystem ...................................... 356
Ad justin gthe sound focus
Burmes ter®
sur round soun dsystem. .. 356
Ad justin gthe sound optimisation
Burmes ter®
high-end 3D sur round
soun dsystem ...................................... 357
Ad justin gtreble, mid- rang ea nd bass
settings
Burmes ter®
high-end 3D sur round
soun dsystem ...................................... 356 ADS PLUS damping sy
stem
see AI RBODYC ONTROL
Af ter-sales service centre
see ASS YSTP LUS
AIR BODY CONT ROL................................ 197
Setting ................................................. 19 8
Suspensio n.......................................... 197
Air distribution Setting (multimedia sy stem) ................1 36
Air freshener sy stem
see Frag rance sy stem
Air suspension see AIR BODY CONTROL
Air vents ................................................... 14 3
Ad justing (front) .................................. 14 3
Ad justing (rear) .................................... 14 4
Ad justing theA IRSCARF vents ............. 14 5
Glo vebox. ............................................ 14 4
Air vents
see Air vents
Ai r-re circulation mode ............................ 137
Airbag ........................................................ .37
Ac tivation .............................................. 31 Index
489