2017 MERCEDES-BENZ SLC-Class engine

COMANDdisplay shows amessage about var i-
ous special offers at your workshop.
USAo nly: th isinformatio ncan also becalle dup
unde r"Owners Onlin e" at http://
www.m busa.co m.
Inform ationont hedatas toredint hevehicle
(
Ypage 27).
Information on RoadsideA ssistance
(
Ypage 24).
Garage door opener
General notes
The HomeLink®garag edoor opener integrated
in th erear-view mirror allows you to operate up
to three differentd oor and gatesystems.
Use th eintegrate dgarag edoor opener only on
garag edoorst hat:
Rhave safety stop and reversef eatures and
Rmeet currentU.S.federal safety standards
Once programed, th eintegrate dgaraged oor
opener in th erear-view mirror will assumet he
function of th egarag edoor system'sr emote
control. Please also read th eoperatin ginstruc-
tions for th egarag edoor system.
When programmingag aragedoor opener, park
th ev ehicle outside th egarage. Do no trun the
engine while programming.
Certain garag edoor drives are incompatible
with th eintegrate dgarag edoor opener. If you
have difficult yprograming th eintegrate dgarage
door opener, contac tanauthorized Mercedes-
Ben zCenter.
Alternatively, you can call th efollowingt ele-
phonea ssistance services:
RUSA:Mercedes-Ben zCustome rAssistance
Center at 1-800-FOR-MERCedes
RCanada: CustomerServic eat
1-800-387-0100
RHomeLink®hotline 1-800-355-3515 (free of
charge)
Morei nformatio nonHomeLink
®and/or com-
patible product sisalso availabl eonline at
http://www.homelink.com.
Notes on th edeclaration of conformity
(
Ypage 25).
USA: FCC ID:C B2HMIHL4
Canada: IC: 279B-HMIHL4
Important safety notes
GWARNING
When you operate or program th egarag edoor
with th eintegrate dgarag edoor opener, per-
sonsint herange of movementoft hegarage
door can become trapped or struc kbythe
garag edoor.T hereisar isk of injury.
When usingt heintegrate dgarag edoor
opener, always makes ure that nobody is
within th erange of movementoft hegarage
door.
GWARNING
Combustio nengine semit poisonous exhaust
gases suchasc arbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Therefore never leave
th ee ngine runnin ginenclosed spaces with-
out sufficient ventilation.
Programming
Programmin gbuttons
Pay attention to th e"Important safety notes"
(Ypage 226).
Garage door remotec ontrolAis no tincluded
with th eintegrate dgarag edoor opener.
XTurn th eSma rtKey to position 2in th eignition
lock(Ypage 115).
XSelect oneofb uttons;to? to use to con-
trol th egarag edoor drive.
226Features
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

XReachintot he gap, pull hoo dcatch handle ;
up and lift hoo d:.
If you lift th ehoodbya pproximately 15 in
(40 cm), th ehoodiso pened and held open
automatically by th egas-filled strut .
Closingthehood
XLowe rthe hoo dand let it fall from aheight of
approximately 8in(20 cm).
XChec kthatthe hoo dhas engage dproperly.
If th ehoodc an be raised slightly, it is no t
properly engaged. Open it again and close it
wit hal ittlem oref orce .
Engine oil
Notes on th eoil level
Dependin gonyour driving style, th evehicl e
consumes up to 0. 9USqt(0.8 liters )ofoilpe r
60 0m iles (1,000 km). Th eoilcons umption may
be higher than th iswhen th evehicle is newori f
you frequently driveath igh engines peeds.
Dependin gontheengine, th eoil dipst ick may be
in ad ifferent location.
When checking th eoilleve l:
Rpark th evehicle onaleve lsurface
Rthee ngines hould be swit ched off for approx-
imately fiv eminute sift heengineisatn ormal
operatin gtem perature
Rifth ee ngineisn otat normal operatin gtem -
perature, e.g .iftheenginew as onlystarted
brie fly,wait about 30 minute sbefore carrying
out the measurement
Checking the oil level using the oil dip-
stick
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the component sdescribed in the
following.
ExampleXPull oil dipstick :out of the dipstick guide
tube.
XWipe off oil dipstick :.
XSlowly slide oil dipstick :into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;,the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) of engine oil.
Adding engine oil
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the component sdescribed in the
following.
232Engine compartment
Maintenance and care

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

XPark the vehicle onalevel surface.
Only check the coolant level when the vehicle is on alevel surface and the engine has cooled
down.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 115).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Ypage 115).
XCheck the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
158 ‡(70 †).
XTurn the SmartKey to position 0(Ypage 115)
in the ignition lock.
XSlowly turn cap ;half aturn counter-clock-
wise to allow excess pressure to escape.
XTurn cap ;further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank :.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar =in the fuel filler
neck when warm, there is enough coolant in
expansion tank :.
XIf necessary, add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap;and turn it clockwise as far as
it will go.
For further information on coolant ,see
(
Ypage 287).
Windshield washer system
GWARNING
Certain components in the engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nentsort he exhaust system. There is arisk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
Example
XTo open: pull cap:upwards by the tab.
XAdd the premixed washer fluid.
XTo close: press cap :ontothe filler neck
until it engages.
If the washer fluid level drops below the recom-
mended minimum fluid level of 1USgal (1 liter),
am essage appears in the multifunction display
promptin gyou to add washer fluid (
Ypage 201).
Further information on windshield washer fluid/
antifreeze (
Ypage 288).
Overview of the engine compartment
Example: gasoline engine
:
Engine oil cap
;Oil dipstick
=Brake fluid reservoir
?Washer fluid reservoir
ACoolant expansion tank
234Overview of the engine compartment
Maintenance and care

ASSYSTPLUS
Service messages
The ASSYS TPLUSs ervic einterval display
inform syou of th enexts ervic edue date.
Information on th etypeofs erviceand servic e
intervals (see th eseparat eMaintenance Book -
let).
You can obtain further information from an
authorize dMercedes-Benz Cente rorat
http://www.mbusa.co m(USAo nly).
iThe ASSYS TPLUSs ervic einterval display
does no tsho wa ny information on th eengine
oil level. Observ ethe note sont heengin eoil
level (
Ypage 232).
The multifunction display shows aservic emes-
sage for several seconds, e.g. :
RServiceAin..D ays
RServic eADue
RServic eAExceeded by .. Day s
Dependingontheoperating condition softhe
vehicle, th eremaining time or distanc euntil th e
next servic edue dat eisdisplayed.
The lette rA
or B,possibl yinconnectio nwitha
number or another letter, shows th etypeofs er-
vice. A
stand sfor am inor servic eand Bfor a
major service.
You can obtain further information from an
authorize dMercedes-Benz Center.
The ASSYS TPLUSs ervic einterval display does
no ttak eintoa ccoun tany periods of time during
whic hthe battery is disconnected.
Maintainin gthe time-dependen tservic esched-
ule:
XNot edown th eservic edue dat edisplayed in
th em ultifunction display before disconnect -
ing th ebattery.
or
XAfte rreconnecting th ebattery, subtrac tthe
battery disconnection periods from th eser-
vic ed ates hown on th edisplay.
Hiding aservice message
XPress th ea or% buttononthesteering
wheel.
Displaying service messages
XSwitc hont heignition .
XPress th e= or; buttononthesteering
whee ltos elect th eServ.menu.
XPress th e9 or: buttontos elect th e
ASSYSTPLU Ssubmen uand confirm by press-
ing th ea button.
The servic edue dat eappear sinthemulti-
function display.
Infor mation abou tService
Resetting th eASSYSTP LUS service
interval display
!If th eASSYSTP LUSs ervic einterval display
has been inadvertentl yreset ,thiss etting can
be correcte dataqualified specialist work-
shop.
Hav eservic eworkc arrie dout as described in
th eM aintenance Booklet .This may otherwise
lead to increased wear and damag etothe
major assemblies or th evehicle.
Aq ualified specialist workshop ,e.g.ana uthor-
ized Mercedes-Benz Center, will reset th e
ASSYS TPLUSs ervic einterval display after th e
servic eworkh as been carrie dout.Y ou can also
obtain further information on maintenance
work, for example.
Special service requirements
The specifie dmaintenance interval takes only
th en orma loperation of th evehicl einto
account. Under arduous operating condition sor
increased load on th evehicle, maintenance
wor km ustbec arriedout mor efrequently, for
example:
Rregular cit ydrivin gwithf requen tintermediat e
stops
Rif th evehicl eisp rimarily used to travel short
distances
Ruse in mountainous terrain or on poor road
surfaces
Rif th eengineiso ften lef tidlin gfor lon gperiods
Under these or similar conditions, have, for
example, th eair filter, engin eoil and oil filter
replace dorchanged mor efrequently. Under
arduous operating conditions, th etires mus tbe
checke dmoreo ften .Further information can be
ASSYST PLUS235
Maintenance and care
Z

XIf possible, bring the front wheelsinto the
straight-ahea dposition.
XSwitch off the engine.
XVehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock.
XVehicles with KEYLESS-GO: open the driv-
er's door.
The on-board electronics now have status 0.
This is the same as the SmartKey having been
removed.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(
Ypage 115).
XMake sure that the passengers are not endan-
gered as they do so. Make sure that no one is near the danger area whileaw heel is being
changed. Anyone who is not directly assisting
in the wheel change should, for example,
stand behind the barrier.
XGet out of the vehicle.P ay attention to traffic
conditions when doing so.
XClos ethe driver's door.
MOExtended tires (tires with run-flat
properties)
General notes
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive you rvehi-
cle even if there is atotal loss of pressure in one
or more tires. The affected tire must not show
any clearl yvisible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You wil lfind this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index (
Ypage 269).
MOExtended tires may only be used in conjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If ap ressure loss warning message appears
in the multifunction display:
Robserve the instructions in the display mes-
sages (Ypage 196).
Rcheck the tire for damage.
Rif driving on, observe the following notes.
The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 19 miles
(30 km) when the vehicle is full yladen. In addition to the vehicle load
,the driving dis-
tance possible depends upon:
Rvehicle speed
Rroad condition
Routsid etemperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode is
counted from the moment the tire pressure loss
warning appears in the multifunction display.
You must not exceed amaximum speed of
50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for you rvehicle's
tires:
Rsize
Rtype and
Rthe "MOExtended" mark
If at ire has gone flat and cannot be replaced
with aMOExtended tire, astandard tire may be
used as atemporary measure. Make sure that
you use the proper size and type (summe ror
winter tire).
Vehiclese quipped with MOExtended tires are
not equipped with aTIREFIT kit at the factory. It
is therefore recommended that you additionally
equi pyourvehicle with aTIREFIT kit if y
ou mount
tires that do not feature run-flat properties, e.g.
winter tires. ATIREFIT kit is available, for exam-
ple, from aqualifieds pecialist workshop.
Important safety notes
GWARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is arisk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacle s(curbs, potholes,
off-road). This applies in particular to aladen
vehicle.
Stop driving in emergency mode if:
Ryou hear banging noises.
Rthe vehicle starts to shake.
242Flat tire
Breakdowna ssistance

XPull the tire sealant bottle out of the tire infla-
tion compressor.
The filler hose remains attached to the tire
sealant bottle.
XDrive to the nearest qualified specialist work-
shop and have the tire changed there.
XHave the tire sealant bottle and the filler hosereplaced as soon as possible at aqualified
specialist workshop.
XHave the tire sealant bottle replaced every
four years at aqualified specialist workshop.
Battery (vehicle)
Important safety notes
Special tools and expert knowledge are required
when working on the battery, e.g. removal and
installation .You should therefore have all work
involvin gthe battery carried out at aqualified
specialist workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to ashort circuit and
thus damage the vehicle electronics. This can
lead to function restriction sapplying to
safety-relevant systems, e.g the lighting sys-
tem, the ABS (anti-loc kbraking system) or the
ESP
®(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steerin gmaneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is arisk of an accident.
In the event of ashort circuit or asimilar inci-
dent, contact aqualified specialist workshop
immediately. Do not drive any further .You
should have all work involvin gthe battery car-
ried out at aqualified specialist workshop.
For further information about ABS and ESP
®,
see (Ypage 55) and (Ypage 58).
GWARNING
Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explo-
sive gases of abattery. There is arisk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existin gelectrostatic
build-up.
The highly flammable gas mixture forms when
charging the battery as well as when jump-start-
ing.
Always make sure that neither you nor the bat-
tery is electrostatically charged. Abuild-up of
electrostatic charge can be caused, for exam-
ple:
Rby wearing clothin gmade from synthetic
fibers
Rdue to friction between clothin gand seats
Rif you push or pull the battery across the car-
pet or other synthetic materials
Rif you wipe the battery with acloth
GWARNING
During the charging process, abattery produ-
ces hydrogen gas. If ashort circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is arisk of an explosion.
RMake sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts.
RNever place metal object sortools on abat-
tery.
RIt is importan tthat you observe the descri-
bed order of the battery terminals when
connectin gand disconnectin gabattery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly importan ttoobserve the
described order when connectin gand dis-
connectin gthe jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
GWARNING
Battery acid is caustic. There is arisk of injury.
246Battery (vehicle)
Breakdown assistance