2017 MERCEDES-BENZ S-Class COUPE maintenance

Display messagesPossible causes/consequences and0050Solutions
Reduce Engine OilLevel
The engineoil level is to ohigh .
XHaveexcess engin eoil siphoned off .
For Engine OilLevelIgnitionMustBe On
The ignition is switched off .
XTurn theSmartKey to position 2in th eignition loc k (Ypage 121).
or
XOn vehicles wit hKEYLESS-GO ,press th eStart/Sto pbutto ntwice
(Ypage 121).
Nee dMor eTim etoCheck Engine OilLevel
The require dwaiting period was no tobserved.
XIf th eengin eis at normal operating temperature: repeat th emeas -
uremen tafter about fiv eminutes.
If th eengin eis no tat normal operating temperature, e.g. if th e
engin ewas only started briefly: repeat th emeasuremen tafter
approximately 30 minutes.
Engine Oil LevelNotMeasurabl ewithEngine Runnin g
The engineis running; oil level measuremen tis no tpossible.
XSwitc hoff th eengine.
XIf th eengin eis at normal operating temperature: wait about fiv e
minute sbefore carryin gout th emeasurement.
If th eengin eis no tat normal operating temperature, e.g. if th e
engin ewas only started briefly: wait approximately 30 minute s
before carryin gout th emeasurement.
Adding engine oil
HEnvironmenta lnot e
Whe naddin goil, tak ecar eno tto spil lany. If
oil enters th esoil or waterways, it is harmful to
th eenvironment.
!Use only engin eoils and oil filters that are
approve dfor vehicles wit h aservic esystem. A
list of th eengin eoils and oil filters that hav e
been tested and approve din accordanc ewit h
Mercedes-Ben zSpecification sfor Service
Products is available at any authorize d
Mercedes-Ben zCenter.
The followin gcaus eengin efailure or damag e
to th eexhaust system:
RUse of engin eoils and oil filters that hav e
no tbeen expressl yapprove dfor th eservic e
system
RReplacement of engin eoil and oil filter after
th ereplacemen tinterval specified by th e
servic esystem has expired
RUse of engin eoil additive s
!Do notadd to omuc hoil. addin gto omuc h
engin eoil can result in damag eto th eengin e
or to th ecatalytic converter. Hav eexcess
engin eoil siphoned off .
Example: addingengin eoil
XTurn cap 0043counter-clockwise and remove it .
XAddengin eoil.
If th eoil level is at or belo wtheMIN mar kon
th eoil dipstick ,add 1. 1US qt (1.0 lite r) of
engi ne oil.
276Engine compartment
Maintenance and care

XReplacecap 0043on th efiller neck and tighten
clockwise.
Ensur ethat th ecap locks int oplac esecurely.
XChec kth eoil level again usin gth eoil dipstick
(except Mercedes-AM G S65) (Ypage 275).
XChec kth eoil level again usin gth eon-board
computer (Mercedes-AM G S65)
(
Ypage 275).
Further information on engin eoil (
Ypage 332).
Additional service products
Important safety notes
GWARNIN G
Certain component sin th eengin ecompart-
ment, suc has th eengine, radiato rand part s
of th eexhaust system, can become ver yhot .
Workin gin th eengin ecompartmen tposes a
ris kof injury.
Wher epossible, let th eengin ecool down and
touch only th ecomponent sdescribe din th e
following.
GWARNIN G
The engin ecompartmen tcontain smoving
components. Certain components, suc has
th eradiato rfan ,may continue to run or start
again suddenly when th eignition is off .There
is aris kof injury.
If you need to do any wor kinside th eengin e
compartment:
Rswitch off th eignition
Rnever reac hint oth earea wher ethere is a
ris kof danger from moving components,
suc has th efan rotation area
Rremove jewelr yand watches
Rkeep items of clothing and hair ,for exam-
ple, away from moving part s
GWARNING
The coolin gsystem is pressurized, particularly
when th emotor is warm .If you open th ecap ,
you could be scalded if hot coolan tsprays out .
There is aris kof injury.
Let th eengin ecool down before you open th e
cap .Wear gloves and eye protection .Slowly
open th ecap to reliev epressure.
GWARNIN G
Opening th ehoo dwhen th eengin eis over-
heated or when there is afir ein th eengin e
compartmen tcould expos eyou to hot gase s
or other servic eproducts .There is aris kof
injury.
Let an overheate dengin ecool down before
opening th ehood. If there is afir ein th e
engin ecompartment, keep th ehoo dclosed
and contact th efir edepartment.
Checking coolant level
GWARNIN G
Certain component sin th eengin ecompart-
ment, suc has th eengine, radiato rand part s
of th eexhaust system, can become ver yhot .
Workin gin th eengin ecompartmen tposes a
ris kof injury.
Wher epossible, let th eengin ecool down and
touch only th ecomponent sdescribe din th e
following.
GWARNIN G
The coolin gsystem is pressurized, particularly
when th emotor is warm .If you open th ecap ,
you could be scalded if hot coolan tsprays out .
There is aris kof injury.
Let th eengin ecool down before you open th e
cap .Wear gloves and eye protection .Slowly
open th ecap to reliev epressure.
Engine compartment277
Maintenance and care
Z

Example: checking the coolant level
XPark the vehicle on a level surface.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
XTurn the SmartKey to position2in the ignition
lock (Ypage 121).
or
XOn vehicles with KEYLESS-GO, press the
Start/Stop button twice (Ypage 121).
XCheck the coolant temperature display in the
instrument cluster (Ypage 187).
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position 0in the ignition
lock (Ypage 121).
or
XPress the Start/Stop button once on vehicles
with KEYLESS-GO (Ypage 121).
XSlowly turn cap 0043counter-clockwise and to
relieve excess pressure.
XTurn cap 0043further counter-clockwise and
remove it.
If the coolant is at the level of marker bar 0087
in the filler neck when cold, there is enough
coolant in coolant expansion tank 0044.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0087in the filler neck
when warm, there is enough coolant in expan-
sion tank 0044.
XIf necessary, add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap 0043and turn it clockwise as far as
it will go.
For fu rther i
nformation on coolant, see
(Ypage 333).
Adding washer fluid to the windshield
washer system
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
Example: adding fluid to the windshield
washer system
XTo open: pull cap0043upwards by the tab.
XPlace cap 0043on the edge of the filler neck and
engage in place.
XAdd the premixed washer fluid.
XTo close: press cap 0043onto the filler neck
until it engages.
If the washer fluid level drops below the recom-
mended minimum fluid level of 1.1 US qt (1.0 l),
a message appears in the multifunction display
prompting you to add washer fluid (
Ypage 230).
Further information on washer fluid
(
Ypage 334).
ASSYST PLUS
Service message
The ASSYST PLUS service interval display
informs you of the next service due date.
Information on the type of service and service
intervals (see the separate Maintenance Book-
let).
Further information can be obtained at a quali-
fied specialist workshop, e.g. an authorized
278ASSYST PLUS
Maintenance and care

Mercedes-Benz Center, or at
http://www.mbusa.com (USA only).
iThe ASSYST PLUS service interval display
does not show any information on the engine
oil level. Observe the notes on the engine oil
level (
Ypage 275).
The multifunction display shows a service mes-
sage for several seconds, e.g.:
RService A in XX Days
RService A Due
RService A Overdue by XX Days
Depending on the operating conditions of the
vehicle, the remaining time or distance until the next service due date is displayed.
The letter A
orB, possibly in connection with a
number or another letter, indicates the type of
service. A
stands for a minor service and Bfor a
major service.
You can obtain further information from an
authorized Mercedes-Benz Center.
The ASSYST PLUS service interval display does
not take into account any periods of time during
which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
XNote down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
XAfter reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display.
Hiding a service message
XPress the 0076or0038 button on the steering
wheel.
Displaying service messages
XSwitch the ignition on.
XUse 00E2 on the steering wheel to call up the
list of menus.
XPress 0063or0064 on the steering wheel to
select the Servicemenu and confirm with
0076.
XPress 0063or0064 on the steering wheel to
select the ASSYST PLUSsubmenu and con-
firm with 0076.
The service due date appears in the multi-
function display.
Information about Service
Resetting the ASSYST PLUS service
interval display
!If the ASSYST PLUS service interval display
has been inadvertently reset, this setting can
be corrected at a qualified specialist work-
shop.
Have service work carried out as described in
the Maintenance Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
A qualified specialist workshop, e.g. an author-
ized Mercedes-Benz Center, will reset the
ASSYST PLUS service interval display after the
service work has been carried out. You can also
obtain further information on maintenance
work, for example.
Special service requirements
The specified maintenance interval takes only
the normal operation of the vehicle into
account. Under arduous operating conditions or
increased load on the vehicle, maintenance
work must be carried out more frequently, for
example:
Rregular city driving with frequent intermediate
stops
Rif the vehicle is primarily used to travel short
distances
Ruse in mountainous terrain or on poor road
surfaces
Rif the engine is often left idling for long periods
Under these or similar conditions, have, for
example, the air filter, engine oil and oil filter
replaced or changed more frequently. Under
arduous operating conditions, the tires must be
checked more often. Further information can be obtained at a qualified specialist workshop, e.g.
an authorized Mercedes-Benz Center.
ASSYST PLUS279
Maintenance and care
Z

Drivingabroad
An extensive Mercedes-Ben zServic enetwor kis
also available in other countries. You can obtain
further information from any authorized
Mercedes-Ben zCenter.
Car e
General notes
!
Fo rcleanin gyour vehicle, do no tuse any of
th efollowing:
Rdry, rough or har dcloths
Rabrasiv ecleanin gagents
Rsolvents
Rcleanin gagents containin gsolvents
Do no tscrub .
Do no ttouch th esurfaces or protective films
wit hhar dobjects ,e.g. arin gor ic escraper.
You could otherwise scratch or damage th e
surfaces and protective film.
!Do no tpar kyour vehicle fo r alon gperiod of
time directl yafter cleaning, particularly after
cleanin gth ewhee lrim wit hwhee lcleaner.
Wheel cleaner can lead to th eincrease dcor-
rosio nof th ebrake discs and pads .Therefore,
drive fo r afew minutes after cleaning. By
heatin gup th ebrakes, th ebrake discs and
pads dry. The vehicle can then be parke dfo r a
lon gperiod of time.
HEnvironmental not e
Dispose of empty packagin gand cleanin g
cloths in an environmentally responsible man -
ner.
Regular car eof your vehicle is acondition fo r
retainin gth equalit yin th elon gterm .
Use car eproducts and cleanin gagents recom -
mended and approved by Mercedes-Benz.
Washing th evehicle an dcleaning th e
paintwor k
Automatic car was h
GWARNING
Brakin gefficiency is reduce dafter washin g
th evehicle. There is aris kof an accident.
Afte rth evehicle has bee nwashed, brake
carefully whil epayin gattention to th etraffic
condition suntil full braking powe ris restored .
!WhenDISTRONIC PLU Sor th eHOLD func-
tion is activated, th evehicle brake sautomat -
ically in certain situations.
To avoid damage to th evehicle, deactivat e
DISTRONIC PLU Sand th eHOLD function in
th efollowin gor similar situations:
Rwhen towin gth evehicle
Rin th ecar wash
!Never clean your vehicle in aTouchless
Automatic Car Wash as these use special
cleanin gagents .These cleanin gagents can
damage th epaintwor kor plasti cparts .
!Makesur ethat :
Rthesid ewindows are full yclose d
Rtheblower is switched of f
Rthewindshield wipe rswitch is at position 0
Rthe360° camera or rea rvie wcamera is
switched of f
The vehicle may otherwise be damaged .
!If theSmartKey is within th erea rdetection
range of KEYLESS-GO ,th efollowin gsitua-
tions, fo rexample, could lead to th euninten -
tional opening of th etrunk :
Rusing acar wash
Rusin g apowe rwasher
Mak esur ethat th eSmartKey is at leas t10 ft
(3 m) away from th evehicle.
!Mak esur ethat th eautomatic transmissio n
is in neutral position Nwhen washin gyour
vehicle in atow-through car wash .The vehicle
may otherwise be damaged .
ROperatingwit hth eSmartKey:
Do no tremov eth eSmartKey from th eigni-
tion lock. Do no tope nth edriver's doo r
when th eengin eis switched of for at ver y
low speeds .Otherwise ,when in transmis -
sio nposition Dor Rtheautomatic trans -
missio nwill automatically switch to par k
position Pand bloc kth ewheels.
ROperatin gwit hth eStart/Sto pbutton:
Do no tope nth edriver's doo rwhen th e
engin eis switched of for at ver ylow
speeds .Otherwise ,when in transmissio n
position Dor Rth eautomatic transmissio n
280Care
Maintenance and care

will automatically switch to park positionP
and block the wheels.
Observe the following to make sure that the
automatic transmission stays in position Nneu-
tral:
Operating with the SmartKey:
XMake sure that the ignition is switched on.
XMake sure that the vehicle is stationary.
XDepress and hold the brake pedal.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake, if neces-
sary.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
Operating with the Start/Stop button:
XMake sure that the ignition is switched on.
XMake sure that the vehicle is stationary.
XDepress and hold the brake pedal.
XEngage park position P.
XRelease the brake pedal.
XRemove Start/Stop button from ignition lock
(Ypage 121).
XInsert the SmartKey into the ignition lock.
XSwitch on the ignition.
XDepress and hold the brake pedal.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake, if neces-
sary.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off wax
from the windshield and the wiper blades. This
will prevent smears and reduce wiping nois es
c

aused by residue on the windshield.
Washing by hand
In some countries, washing by hand is only
allowed at specially equipped washing bays.
Observe the legal requirements in each country.
XDo not use hot water and do not wash the
vehicle in direct sunlight.
XUse a soft sponge to clean.
XUse a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz.
XThoroughly hose down the vehicle with a gen-
tle jet of water.
XDo not point the water jet directly towards the
air inlet.
XUse plenty of water and rinse out the sponge
frequently.
XRinse the vehicle with clean water and dry
thoroughly with a chamois.
XDo not let the cleaning agent dry on the paint-
work.
Carefully remove all deposits of road salt as
soon as possible when driving in winter.
Power washers
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Always maintain a distance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information about the
correct distance is available from the equip-
ment manufacturer.
Move the power washer nozzle around when
cleaning your vehicle.
Do not aim directly at any of the following:
RTires
RDoor gaps, roof gaps, joints, etc.
RElectrical components
RBattery
RConnectors
RLamps
RSeals
RTrim
RVentilation slots
Care281
Maintenance and care
Z

Damaged seals or electrical components can
lead to leaks or failures.
!If the SmartKey is within the rear detection
range of KEYLESS-GO, the following situa-
tions, for example, could lead to the uninten-
tional opening of the trunk:
Rusing a car wash
Rusing a power washer
Make sure that the SmartKey is at least 10 ft
(3 m) away from the vehicle.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit a qualified specialist workshop.
XRemove dirt immediately, where possible,
while avoiding rubbing too hard.
XSoak insect remains with insect remover and
rinse off the treated areas afterwards.
XSoak bird droppings with water and rinse off
the treated areas afterwards.
XRemove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
cloth soaked in petroleum ether or lighter
fluid.
XUse tar remover to remove tar stains.
XUse silicone remover to remove wax.
If water no longer forms "beads" on the paint
surface, use the paint care products recommen-
ded and approved by Mercedes-Benz. This is the
case approximately every three to five months,
depending on the climate conditions and the
care product used.
The cleaning product Paint Cleaner, which has
been recommended and approved by
Mercedes-Benz, shoul d b
e used when dirt has
penetrated the paint surface.
Also use Paint Cleaner on paint that has become
dull.
Do not use these care products in the sun or on
the hood while the hood is hot.
XUse a suitable touch-up stick, e.g. MB Touch-
Up Stick, to repair slight damage to the paint-
work quickly and provisionally.
Matte finish care
!Never polish the vehicle or the light alloy
wheels. Polishing causes the finish to shine.
!The following may cause the paint to
become shiny and thus reduce the matte
effect:
Rstrong rubbing of the paintwork with
unsuitable materials
Rfrequent use of automatic car washes
Rwashing the vehicle in direct sunlight
!Never use paint cleaner, buffing or polishing
products, or gloss preserver, e.g. wax, for the
purpose of paintwork care. These products
are only suitable for high-gloss surfaces. Their
use on vehicles with matte paintwork leads to considerable surface damage or, more spe-
cifically, to shiny, spotted areas.
Always have paintwork repairs carried out at a
qualified specialist workshop.
!Do not use wash programs with a hot wax
treatment under any circumstances.
Observe these notes if your vehicle has a clear
matte finish. This will help you to avoid damage to the paintwork due to incorrect treatment.
These notes also apply to light alloy wheels with
a clear matte finish.
The vehicle should ideally be washed by hand
using a soft sponge, car shampoo and plenty of
water.
Use only insect remove r a
nd car shampoo from
the range of approved Mercedes-Benz care
products.
Cleaning the vehicle parts
Cleaning the wheels
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
282Care
Maintenance and care

Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
!Do not park your vehicle for a long period of
time directly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore, drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a
long period of time.
Cleaning the windows
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows. Do
not touch the insides of the windows with
hard objects, e.g. an ice scraper or ring. There
is otherwise a risk of damaging the windows.
!Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals and pollen may under certain circumstances pre-
vent water from draining away. This can lead
to corrosion damage and damage to elec-
tronic components.
XClean the inside and outside of the windows
with a damp cloth and a cleaning product that
is recommended and approved by Mercedes-
Benz.
Cleaning wiper blades
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not pull the wiper blade. Otherwise, the
wiper blade could be damaged.
!Do not clean wiper blades too often and do
not rub them too hard. Otherwise, the graph-
ite coating could be damaged. This could
cause wiper noise.
!Hold the wiper arm securely when folding
back. The windshield could be damaged if the
wiper arm smacks against it suddenly.
XFold the windshield wiper arms away from the
windshield (Ypage 109).
XCarefully clean the wiper blades with a damp
cloth.
XFold the windshield wiper arms back again
before switching on the ignition.
Cleaning the exterior lighting
!Only use cleaning agents or cleaning cloths
which are suitable for plastic light lenses.
Unsuitable cleaning agents or cleaning cloths
could scratch or damage the plastic light len- ses.
XClean the plastic lenses of the exterior lights
with a wet sponge and a mild cleaning agent,
e.g. Mercedes-Benz car shampoo or cleaning
cloths.
Cleaning the mirror turn signals
!Only use cleaning agents or cleaning cloths
that are suitable for plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
mirror turn signals.
XClean the plastic lenses of the mirror turn sig-
nals in the exterior mirror housing using a wet
sponge and mild cleaning agent, e.g.
Care283
Maintenance and care
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