2017 MERCEDES-BENZ SLC-Class ECU

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

GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool downa nd
thoroughly clea nthe engine oil off the com-
ponents before starting the engine.
HEnvironmental note
When adding oil,t ake care not to spil lany. If
oil enters the soil or waterways, it is harmfu lto
the environment.
!Only use engine oilsa nd oil filters that have
been approved for vehicles with aservice sys-
tem. You can obtai nalist of the engine oils
and oil filters tested and approved in accord- ance with the Mercedes-Benz Specifications
for Service Products at any Mercedes-Benz
Service center.
Damag etothe engine or exhaust system is
caused by the following:
Rusing engine oilsa nd oil filters that have not
been specifically approved for the service
system
Rreplacing engine oil and oil filters after the
interval for replacement specified by the
service system has been exceeded
Rusing engine oil additives.
!Do not add too much oil.Ift he oil levelis
above the "max" mark on the dipstick, too
much oil has been added. This can lea dto
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
Example :engine oil cap
XTurn cap :counter-clockwise and remove it.
XAdd engine oil.
If the oil leve lisatorbelow the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 liter) of
engine oil.
XReplace cap :on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil leve lagain with the oil dipstick
(Ypag e232).
Further information on engine oil (
Ypag e286).
Checkin gand adding other service
products
Checkin gcoolantl evel
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible,l et the engine cool downa nd
touch only the components described in the
following.
GWARNING
The cooling system is pressurized, particularly
when the motor is warm .Ifyou open the cap,
you coul dbescalded if hot coolant sprays out.
There is arisk of injury.
Let the engine cool downb efore you open the
cap. Wearg lovesand eye protection. Slowly
open the cap to relieve pressure.
Example
Engine compartment233
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

Where willIfind...?
Vehicle tool kit
General notes
The vehicl etool kit can be found in the trunk or
in the stowage wel lunder the trunk floor.
Apart from certain country-specifi cvariations,
the vehicles are not equipped with atire-change
tool kit. Some tools for changing awheela re
specific to the vehicle. For more information on
which tools are required to perform awheel
change on you rvehicle, consul taqualified spe-
cialist workshop.
Necessary tire-changing tools can include, for
example:
RJack
RWheelc hock
RLug wrench
RRatchet wrench
RAlignment bolt
Vehicles with aTIREFIT kit
:Tire sealant filler bottle
;Fuse allocatio nchart
=Tire inflation compressor
?Towing eye
XLift the trunk floor up.
XUse the TIREFIT kit (Ypag e243).
iExample :equipment and country-specific
variations possible.
Vehicles with acollapsible spare wheel
The collapsible spare wheel can be found in the
stowage wel lunder the trunk floor (Ypag e218).
:Folding wheel chock
;Fuse allocatio nchart
=Jack
?Sheet for faulty wheel
AAlignment bolt
BLug wrench
CTowing eye
DValve extractor
ETire inflation compressor
XRemove the collapsible spare wheel
(Ypag e280).
Flat tire
Preparing the vehicle
You rvehiclem ay be equipped with:
Rtires with run-fla tcharacteristics
(MOExtended tires) (Ypag e242)
Vehicle preparation is not necessary on vehi-
cles with MOExtended tires
Ran emergency spare wheel (Ypag e279)
Vehicles equipped with MOExtended tires are
not equipped with aTIREFIT kit at the factory.I t
is therefore recommendedt hat you additionally
equip you rvehicl ewithaTIREFIT kit if you mount
tires that do not feature run-fla tproperties, e.g.
winter tires. ATIREFIT kit may be obtained from
aq ualified specialist workshop.
Informatio nonchanging and mounting wheels
(
Ypag e274).
XStop the vehicl eonsolid, non-slippery and
leve lground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicl eagainst rolling away
(Ypag e131).
Flat tire241
Breakdown assistance

Avoidcontact with skin, eyes or clothing. Do
not inhal eany battery gases .Donot lean over
the battery .Keepc hildren away from batter-
ies. Wash away battery aci dimmediatelyw ith
plenty of clean water and see kmedica latten-
tion.
HEnvironmental note
Batterie scontain dangerous
substances .Itisagainst the
la wtod ispose of them with
the householdr ubbish.They
must be collected separately and recycle dtoprotect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to aquali fied spe-
cialist workshop or aspecial
collectio npoint for used bat-
teries.
!Hav ethe battery checked regularly at a
qualified specialist workshop.
Observ ethe service intervals in the Mainte-
nance Bookle torcontact aquali fied specialist
workshop for more information.
!Alway shavew orkonb atteries carrie doutat
aq uali fied specialist workshop.S hould it, in
exceptionalc ircumstances ,beabsolutely
necessary to disconnect the 12-volt battery
yourself, observe the following:
Rsecur ethe vehicl etoprevent it from rolling
away.
Rswitch off the ignition.
Ralways disconnect the negative terminal
clamp first, followe dbythe positive termi-
nal clamp.
After the battery hasb eend isconnected ,the
transmission is locked in position P.
After the work hasb eend one, instal lthe bat-
tery and replace the cove rofthe positive ter-
mina lclamp firmly.
Compl ywiths afety precautions and take pro-
tective measures when handling batteries.
Risk of explosion.
Fire, open flames and smoking are
prohibited when handling the bat-
tery .Avoi dc reating sparks.
Battery aci discaustic. Avoi dcontact
with skin, eyes or clothing.
Wear suitabl eprotective clothing,
especially gloves, apron and face-
guard.
Rinse any aci dspillsimmediately
with clear water. Contact aphysician
if necessary.
Wear ey eprotection.
Kee pchildren away.
Observ ethisO perator' sManual.
For safety reasons ,Mercedes-Benz recom-
mend sthaty ouonlyu sebatteries which have
been teste dand approved for your vehicl eby
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehicle
occupants from suffering aci dburns shoul dthe
battery be damaged in the event of an accident.
In order for the battery to achieve the maximum
possibl eservice life, it must always be suffi-
ciently charged.
Like othe rbatteries, the vehicl ebattery may
discharge ove rtime if yo udonot usethe vehicle.
In thisc ase, have the battery disconnected at a
qualified specialist workshop.Y oucan also
charge the battery with acharge rrecommended
by Mercedes-Benz. Contact aquali fied special-
is tw orkshop for furthe rinformation.
Hav ethe battery condition of charge checked
more frequentlyify ouuset he vehicl emainl yf or
short trip sorifyouleav eits tanding idle for a
lengthy period. Consult aquali fied specialist
workshop if yo uwishtol eave your vehicle
parked for alon gp eriodoft ime.
Remove the SmartKeyify oupark the vehicle
and do not require any electrical consumers.
Battery (vehicle)247
Breakdo wn assis tance
Z

Do not start the vehicleusing arapid charging device. If your vehicle's battery is discharged, the
engine can be jump-started froma nothervehicleorf romas econd battery using jumpe rcables.
Observe the following points:
RThe battery is not accessible in al lvehicles. If the othe rvehicle's battery is not accessible ,jump-
start the vehicl eusing asecond battery or ajump-starting device.
RYo um ayonl yjump-star tthe vehicl ewhent he engine and exhaust system ar ecold.
RDo not start the engine if the battery is frozen. Let the battery thawf irst.
ROnlyjump-star tfromb atteries with a12Vvoltagerating.
ROnlyu sejumpe rcable swhich have asufficient cross-sectio nand insulate dtermina lclamps.
RIf the battery is full ydischarged, leav ethe battery thati sbeing used to jump-star tconnected for
af ew minute sbefor ea ttempting to start. Thi scharge sthe battery slightly.
RMake sure thatt he two vehicles do not touch.
Make sure that:
RThe jumpe rcable sarenot damaged.
RBar eparts of the termina lclamp do not come into contact with othe rmeta lparts whil ethe jumper
cable sareconnected to the battery.
RThe jumpe rcable scanno tcome into contact with parts which can mov ewhent he engine is
running ,suc hast he V-bel tpulle yort he fan.
XSecure the vehicl ebyapplyingthe electri cparkin gb rake.
XShift the transmission to position P.
XMake sure thatt he ignition is switched off .All indicator lamps in the instrument cluster must be
off .W henu sing the SmartKey, tur nthe SmartKeytop osition0in the ignition lock and remove it
(
Ypage 115).
XSwitch off al lelectrical consumers ,e.g.r ea rw indo wd efroster ,lighting, etc.
XOpen the hood.
Positio nnumber Bidentifie sthe charge dbattery of the othe rvehicl eorane quivalen tjump-starting
device.
XSlide cover :of positive terminal ;in the direction of the arrow.
XConnect positive terminal ;on your vehicl etopositive terminal =of donor battery Busing the
jumpe rcable ,alway sbegin with positive terminal ;on your ow nvehicl efirst.
XStar tthe engine of the donor vehicl eand runitati dlingspeed.
250Jump-starting
Breakdow nassistance

XConnect negative terminal?of donor battery Bto ground point Aof your vehicle usingt he
jumper cable, connecting th ejumper cabl etobattery of other vehicle Bfirst.
XStart th eengine.
XBefore disconnecting th ejumper cables, let th eenginer un for several minutes.
XFirst,r emove th ejumper cables from ground point Aand negative terminal ?,thenf romp os-
itive clamp ;and positiv etermi nal=.B egineach tim eatthecontact sonyour own vehicle first.
XClose cover :of positiv etermi nal;after rem ovingthe jumper cables.
XHav ethe battery checked at aqualified specialist workshop.
Jump-starting isno tc onsid ered to beanorma loperatin gcondition.
iJumpe rcables and further informatio nregardin gjump-startin gcan be obtaine datanyqualif ied
specialist workshop.
Towingand tow-starting
Important safety notes
GWAR NING
When to wingor tow-startin ganother veh icle
and its weightisg reatertha nt he permis sible
gross weightofy our vehicle,the :
Rthet ow ing eye could detach itself
Rthev ehicle/t railercom binatio ncouldroll-
over.
Thereisar iskofana cciden t.
When to wingor tow-startin ganother veh icle,
its weights hould notbegreatertha nt he per-
mis sible gross weightofy our vehicle.
Detail sonthepermis siblegross veh icleweight
of your veh iclecan befoun dont heveh icle iden -
tification plate(
Ypage 283).
!When Activ eBrake Assist,D istance Pilot
DI ST RONICort heHOLD function are activa-
te d, thev ehicle brakes automaticall yincer-
tain situations.
To avoid damag etotheveh icle,deactivate
these systems inthef ollowin gors imilar sit-
uations:
Rwhen towing th evehicle
Rinthec ar wash
!Only secure th etow ropeort owbar at the
to wing eyes. Otherwise, th evehicle could be
damaged.
!Do no tuse th etow ing eye for recovery, th is
could damag ethe veh icle.Ifind oubt,recover
th ev ehicle withac rane.
!When to wing,pull away slowlya nd
smoothly. Ifth et ractive power is to ohigh,t he
vehicle scould be damaged.
!Do no ttow withsling-type equipment. This
could damag ethe vehicle.
!When to wingvehicle swithK EYLESS-GO,
use th ekeyins tead of th eStart/S topb utton.
Otherwise, th eautomat ictransmission may
shifttop ositionPwhen th edriver' sorf ront-
passenger door are opened, whichcould lead
to damag etothetransmission.
!Makes ure that th eelectr icparking brakei s
released. If th eelectr icparking brak eisfaulty,
vis itaq ualified specialist workshop.
!The vehicle can betowed amaximum of
30 mile s(50km). The towing speedof30m ph
(50 km/h) must no tbeexceeded.
If th evehicle has to be towed mor ethan
30 mile s(50km) ,the entire vehicl emustb e
raised and transported.
!If you to wortow-star tanother vehicle ,its
weightm ust notexceed th emaximum per-
missible gross vehicle weightofy our vehicle.
It is bette rtohave th evehicle transported than
to have it towed away.
The automatic transmission must be in position
N when th evehicle is beingt owed.
The battery must be connecte dand charged.
Otherwise, you:
Rcanno tturnt he SmartKey to position 2in the
ignition lock.
Rcanno tshiftt heautomatic transmission to
position N.
Disarm th eautomatic lockin gfeature before the
vehicle is towed (
Ypage 173). You coul dother-
Towing and tow-starting251
Breakdown assistance
Z

!Vehicles with automatic transmission must
not be towed with the rear axle raised. The
vehicle/trailer combination may otherwise
swerve or even roll over.
Transporting the vehicle
Vehiclesw ith automatic transmission
!When the vehicle is loadedf or transport, the
front and rear axles must be stationary and on
the same transportation vehicle. Positioning
over the connection point of the transport
vehicle is not permitted. The drive train may
otherwise be damaged.
All vehicles
!You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise, the
vehicle could be damaged.
The towing eye can be used to pull the vehicle
onto atrailer or transporter for transporting pur-
poses.
XTurn the SmartKey to position 2in the ignition
lock.
XShift the transmission to position N.
As soon as the vehicleh as been loaded:
XPrevent the vehicle from rolling awayb y
applying the electric parking brake.
XShift the transmission to position P.
XTurn the SmartKey in the ignition lock to posi-
tion0and remove the SmartKey from the
ignition lock.
XSecure the vehicle.
Tow-starting (emergencye ngine
starting)
!
Vehicles with automatic transmission must
not be tow-started. You could otherwise dam-
age the automatic transmission.
You can find information on "Jump-starting" at
(
Ypage 249).
Fuses
Important safety notes
GWARNING
If you manipulate or bridge afaulty fuse or if
you replace it with afuse with ahigher amper-
age, the electric cables could be overloaded.
This could result in afire. There is arisk of an
accident and injury.
Alwaysr eplace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the
color and value.T he fuse ratings are listed in the
fuse allocation chart.
The fuse allocation chart is located in the vehicle
tool kit in the stowage compartment under the
trunk floor (
Ypage 241).
If an ewly inserted fuse also blows, have the
cause traced and rectified at aqualified special-
ist workshop, e.g. an authorized Mercedes-Benz
Center.
!Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Otherwise, componentsors ystems could be
damaged.
!Make sure that no moisture can enter the
fuse box when the cover is open.
!When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing in or dirt could otherwise impair the oper-
ation of the fuses.
The fuses in your vehicle serve to close down
faulty circuits. If afuse blows, all the compo-
nentsont he circuit and their functions stop
operating.
Fuses253
Breakdown assistance
Z