2017 MERCEDES-BENZ SLC-Class windshield wipers

Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield wiper
movement.The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the igni-
tion lock.
or
XSwitch off the engine using the Start/Stop button and open the
driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at aqualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at aqualified specialist workshop.
Windshield wipers101
Lights and windshieldw ipers
Z

The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and front
side windows
Rair-recirculation mode off
XTo switch off:press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X3-zone automatic climate control: press the
à button.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
MAX COOL maximum cooling
The MAX COOL function is only availableinv ehi-
cles for the USA.
MAX COOL is only operational when the engine
is running.
XTo activate: press theÙbutton.
The indicator lamp in the button lights up.
XTo deactivate: press theÙbutton.
The indicator lamp in the button goes out. The
previously selected settings are restored.
When you activate MAX COOL, climate control
switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
XActivate the ¿orÁ cooling with air
dehumidification function.
XDual-zon eautomatic air conditioning: acti-
vate the Ãmode button.
XIf the windows continue to fog up, activate the
¬ "Windshield defrosting" function.
iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.
XAir-conditioning system: press the Por
O button.
XDual-zon eautomatic air conditioning: press
the _ button until the PorO sym-
bol appears in the display.
iYou should only select this setting until the
windshield is clear again.
Rear window defroster
General notes
The rear window defroster has ahigh current
draw. You should therefor eswitch it off as soon
as the rear window is clear. Otherwise, the rear window defroster switches off automatically
after several minutes.
If the battery voltage is too low, the rear window
defroster may switch off.
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
XPress the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
110Operating the climate control systems
Climate control

Where possible, avoid spinningthe drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
SmartKey positions
SmartKey
gTo remove the SmartKey
1Power supply for some consumers, such as
the windshield wipers
2Ignition (power supply for all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
KEYLESS-GO
General notes
Vehicles with KEYLESS-GO are equipped with a
SmartKey featuring an integrated KEYLESS-GO
start function and adetachable Start/Stop but-
ton.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the differentk ey
positions in the ignition lock. This is only the
case if you are not depressing the brake pedal. If you depress the brake pedal and press the
Start/Stop button
,the engine start simmedi-
ately.
Ac heck which periodically establishes aradio
connection between the vehicle and the Smart-
Key determines whether avalid SmartKey is in
the vehicle. This occurs,f or example, when
starting the engine.
To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in the
ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO (Ypage 63).
Do not keep the SmartKey:
Rwith electronic devices, e.g. amobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. ametal case.
This can impair the functionality of the KEY-
LESS-GO key.
If you lock the vehicle with the SmartKey's
remotec ontrol or with KEYLESS-GO, after a
short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will not be able to start the engine with the
Start/Stop button until the vehicle is
unlocked again.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with KEYLESS-GO
:Start/Stop button
;Ignition lock
Driving115
Driving and parking
Z

As soonasthe ignition is switched on, al lthe
indicator lamps in the instrument cluster light
up .Further informatio nonsituations where an
indicator lamp either fails to go outa fterstarting
the engine or lights up whil edriving
(
Ypage 204).
If Start/Stop button :hasn ot yetbeen
pressed, thisc orrespondstot he key being
remove dfrom the ignition.
XTo switc honthe power supply: press
Start/Stop button :once.
The powe rsuppl yiss witched on. Yo ucan now
activate the windshield wipers, for example.
The powe rsuppl yiss witched off agai nif:
Rthe driver's door is opene dand
Ryoup ress Start/Stop button :twice when
in thisp osition
XTo switc honthe ignition: press Start/Stop
button :twice.
The ignition is switched on.
If yo upress Start/Stop button :once when
in thisp osition, the ignition is switched off
again.
Removing the Start/Stopb utton
Youc an remove the Start/Stop button from the
ignition lock and start the vehicl easnormal
using the SmartKey.
XRemove Start/Stop button :from ignition
lock ;.
Yo udon ot have to remove the Start/Stop but-
ton from the ignition lock when yo uleave the
vehicle. Yo ushould, however, always take the
SmartKeyw ithy ou when leaving the vehicle. As
long as the Sma rtKey
isint
he vehicle:
Rthe vehiclecan be started using the Start/
Stop button
Rthe electrically powered equipment can be
operated
Starting the engine
Important safety notes
GWARNING
If children ar eleftu nsupervised in the vehicle,
they could:
Ropen the doors ,thuse ndangering other
people or roa dusers.
Rgeto utand disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicl ein
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission outo f
park position P
RStartthe engine.
There is ariskofana ccident and injury.
Whe nleavi ng the vehicle, always take the
SmartKeyw ithy ou and lock the vehicle. Never
leav echildren or animals unattended in the
vehicle. Alway skeept he SmartKeyo utof
reach of children.
GWARNING
Combustion engine semitp oiso nousexhaust
gases such as carbo nmonoxide. Inhaling
thes eexhaus tgases lead stopoisoning. There
is ar iskoff atalinjury.T herefore neve rleave
the engine running in enclose dspaces with-
outs ufficient ventilation.
GWARNING
Flammabl ematerial sintroduced through
environmentali nfluence or by animals can
ignite if in contact with the exhaus tsystem or
parts of the engine thath eatu p.There is arisk
of fire.
Carry outr egular checks to make sure that
ther eareno flammabl eforeig nmaterial sin
the engine compartment or in the exhaust
system.
During acolds tart, the engine runs at higher
speed stoenablethe catalytic converter to
116Driving
Driving an dparking

Calibratingthe compass
XMakes ure that there is sufficient spacef or
you to driv einacircle without impedingt raf-
fic.
In order to calibrat ethe compass correctly, do
th ef ollowing:
Rcalibrat ethe compass in th eopen and no tin
th ev icinity of steel structures or high-voltage
transmission lines.
Rswitch off electrical consumers suchast he
climate control, windshield wipersorr ear win-
dow defroster.
Rclose all doorsa nd thetrunk lid.
XSwitch on th eignition.
XPush aroun dpen int oopening =
(Ypage 229) for approximately six seconds,
until symbol Cis shown in compass display ;
(Ypage 229).
XDrive your vehicle in afull circle at approx-
imately 3mph (5 km/h )to6mph (10 km/h).
When th ecalibration has successfully been
completed, th ecurren tdirection is shown in
compass display ;(
Ypage 229).
Floormats
GWARNING
Object sinthedriver'sf ootwell can restrict the
pedal travel or obstruc tadepressed pedal.
The operatin gand road safety of th evehicle is
jeopardized. Thereisar iskofana ccident.
Makes ure that all object sinthevehicle are
stowed correctly, and that they canno tenter
th ed river'sf ootwell. Install th efloormats
securely and as specifie dinorder to ensure
sufficient clearance for th epedals.Don otuse
loosef loormats and do no tplacef loormats on
to pofo neanother.
XSlid ethe seat backwards.
XTo install: placethefloormat in th efootwell.
XPress studs :onto retainers ;.
XTo remove:pull thefloormat off retainers ;.
XRemove thefloormat.
230Features
Stowage and features

Engine compartment
Hood
Important safety notes
GWARNING
If th ehood is unlatched, it may open up when
th ev ehicle is in motion and blocky our view.
Thereisar isk of an accident.
Never unlatch th ehood while driving .Before
ever ytrip, ensure that th ehood is locked.
GWARNING
When opening and closingt hehood,itm ay
suddenly fall int othe closed position.T hereis
ar isk of injury to personsw ithin range of
movementoft hehood.
Open and close th ehood only when no onei s
within its range of movement.
GWARNING
Opening th ehood when th eengine is over-
heated or when there is afireint heengine
compartmen tcoul de xpose you to hot gases
or other servic eproducts. Thereisar isk of
injury.
Let an overheate dengine coo ldown before
opening th ehood.Ift here is afireint he
engine compartment, keep th ehood closed
and contac tthe fired epartment.
GWARNING
The engine compartmen tcontain smoving
components. Certain components, sucha s
th er adiator fan ,may continue to run or start
again suddenly when th eignition is off .There
is ar isk of injury.
If you nee dtodoany work inside th eengine
compartment:
Rswitch off th eignition
Rnever reac hintot he area wheret here is a
risk of danger from moving components,
suchast hefan rotatio narea
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from moving parts
Opening th ehood
GWARNING
Certain component sintheengine compart-
ment, suchast heengine ,radiator and parts
of th eexhaust system, can become ver yhot.
Workin gintheengine compartmen tposesa
risk of injury.
Wherep ossible, let th eengine coo ldown and
touch only th ecomponent sdescribe dinthe
following.
GWARNING
When th ehood is open and th ewindshield
wipersa re set in motion,y ou can be injured by
th ew iper linkage. Thereisar isk of injury.
Always switch off th ewindshield wipersa nd
th ei gnition before opening th ehood.
!Makes ure that th ewindshield wipersa re
no tfolded away from th ewindshield. You
coul dotherwise damag ethe windshield wip-
ers or th ehood.
XMakes ure that th ewindshield wipersa re
turned off.
XPull release lever :on th ehood.
The hood is released.
Engine compartment231
Maintenance and care
Z

Do not usepower washers with circular jet
nozzles to clean the vehicle. Hav edamaged
tire sorc hassiscomponents replaced imme-
diately.
!Do not us eacidi cwheel cleaning products
to remove brake dust. Thi scould damage
whee lbolts and brake components.
!Do not park your vehicl efor alon gp eriodo f
time directl yafter cleaning, particularly after
cleaning the whee lrim with whee lcleaner.
Whee lcleane rcan lead to the increased cor-
rosio nofthe brake discs and pads .Therefore,
drive for afew minute safter cleaning. By
heating up the brakes ,the brake discs and
pads dry .The vehicl ecan thenb eparked for a
long perio doftime.
Cleanin gthe windows
GWARNING
Yo uc ould become trapped by the windshield
wipers if theys tart moving whil ecleaning the
windshiel dorwiperblades. There is arisko f
injury.
Alway sswitch off the windshiel dwiper sand
the ignition befor ecleaning the windshiel dor
wipe rblade s.
!Do not us edry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the insid eofthe windows .Do
not touch the insides of the windows with
hard objects ,e.g.ani ce scrape rorring. There
is otherwis eariskofd amagin gthe windows.
!Clea nthe water drainage channel softhe
windshiel dand the rea rwindo watr egular
intervals .Deposits such as leaves, petal sand
pollen mayu nder certain circumstances pre-
vent water fromd raining away.Thisc an lead
to corrosion damage and damage to elec-
troni ccomponents.
XClea nthe insid eand outside of the windows
with adam pcloth and acleaning product that
is recommende dand approved by Mercedes-
Benz.
Cleanin gwiper blades
GWARNING
Yo uc ould become trapped by the windshield
wipers if theys tart moving whil ecleaning the
windshiel dorwiperblades. There is arisko f
injury.
Alway sswitch off the windshiel dwiper sand
the ignition befor ecleaning the windshiel dor
wipe rblade s.
!Do not pull the wipe rblade .Otherwise, the
wipe rblade could be damaged.
!Do not clean wipe rblade stoo ofte nand do
not rubt hemtoo hard. Otherwise, the graph-
ite coating could be damaged. Thi scould
cause wipe rnoise.
!Hol dthe wipe rarm securel ywhenf olding
back. The windshiel dcould be damage difthe
wipe rarm smacks against it suddenly.
XFoldthe windshiel dwiper arms away fromt he
windshield.
XCarefully clean the wipe rblade swithad amp
cloth.
XFol dthe windshiel dwiper arms back again
befor eswitching on the ignition.
Cleanin gthe exterior lighting
!Onlyu secleaning agents or cleaning cloths
which ar esuitabl efor plastic light lenses.
Unsuitabl ecleaning agents or cleaning cloths
could scratch or damage the plastic light len- ses.
XClea nthe plastic lensesoft he exteriorlights
with awetspong eand am ildc leaning agent,
e.g .M ercedes-Benz car shampo oorcleaning
cloths.
Cleanin gthe mirrort urn signals
!Onlyusecleaning agents or cleaning cloths
thata resuitabl efor plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lensesoft he
mirror tur nsignals.
XClea nthe plastic lensesoft he mirror turnsig-
nal sint he exterio rmirror housing using awet
spong eand mil dcleaning agent, e.g.
Care239
Maintenance and care
Z

Before changingafuse
XSwitch off the engine.
XSwitch off al lelectrical consumers.
XMake sure thatt he ignition is switched off
(Ypage 115).
or
XWhe nusing the SmartKey, turn the SmartKey
to position 0in the ignition lock and remove it
(
Ypage 115).
XSecure the vehicl eagain st rolling away
(Ypage 131).
All indicator lamps in the instrument cluster
must be off.
The fuses are locate dinvarious fus eboxes:
RFus eboxin the engine compartment on the
left-hand side of the vehicle, when viewe din
the direction of travel
RFus eboxin the trunk
Fuse bo xinthe engine compartment
i
Observ ethe "Important safety notes "sec-
tio n(Ypage 253).
GWARNING
Whe nthe hoo disopena nd the windshield
wipers are set in motion, yo ucan be injured by
the wipe rlinkage. There is ariskofi njury.
Alway sswitch off the windshield wipers and
the ignition before opening the hood.
XMake sure thatt he windshield wipers are
turne doff.
XOpe nthe hood.
XUse adry cloth to remove any moisture from
the fus ebox.
XTo open: open clamps ;.
XRemove fuseboxcover :forwards.
XTo close: check whethe rthe sea lislying cor-
rectl yinc over:.
XInsert cover :at the rea rofthe fus eboxinto
the retainer.
XFol dd ownc over :and close clamps ;.
XClose the hood.
Fuse boxinthe trunk
i
Observ ethe "Important safety notes "sec-
tio n(Ypage 253).
The fus eboxis locate dinthe trunk behind the
partition covering.
XOpe nthe trunk lid.
XTo open: release cover :on the right and
left-hand side swithaf lato bject.
XOpe ncover :downward sinthe direction of
the arrow.
254Fuses
Breakdo wn assis tance