2018 MERCEDES-BENZ CLA COUPE Owner's Manual

Compass
Callin gupthe compass
:Rear-view mirror
;Compass display
=Opening
The compass displays in whichc ompass direc-
tio nt he vehicle is currently traveling: N
,NE,E,
SE, S,SW,Wor NW.
To receive acorrec tcompass display reading,
th em agnetic fiel dzonem ust be set and the
compass calibrated.
Settin gthe compass
XSet your locatio nusingt hemagnetic field
zone maps (Ypage 255).
XPush aroun dpen int oopening =for approx-
imately three seconds.
The magnetic fiel dzonec urrently selected
appearsinc ompass display ;.
XTo select themagnetic field zone: push a
roun dpen int oopening =until th edesired
magnetic fiel dzoneiss elected.
If,a fter afew seconds, th edisplay in compass
display ;changes direction,t hemagnetic
fiel dzoneh as been selected.
Calibratin gthe compass
Notes
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.
Calibrating
XMakes ure that there is sufficient spacef or
you to driv einacircle without impedingt raf-
fic.
XSwitch on th eignition.
XPush aroun dpin int oopening =for approx-
imately six seconds, until symbol Cis shown in
compass display ;.
XDrive your vehicle in afull circle at approx-
imately 3mph (5 km/h )to6mph (10 km/h).
When th ecalibration has been successfully
completed, th ecurren tdirection is shown in
compass display ;.
Magnetic field zone maps
North America
Features255
Stowage and features
Z

South America
Floormats
GWARNING
Object sinthe driver's footwell can restrict the
pedal travel or obstruct adepressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is arisk of an accident.
Make sure that all object sinthe vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
XSlide the seat back.
XTo install: place the floormat in the footwell.
XPress safety catch knobs :onto retain-
ers ;.
XTo remove: pull the floormat off retainers ;.
XRemove the floormat.
256Features
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
GWARNING
The ignition system and th efuel injection sys-
te mw ork unde rhigh voltage. If you touch
component swhicha re unde rvoltage, you
coul dget an electric shock. Thereisar isk of
injury.
Never touch component softheignition sys-
te morf uel injection system when th eignition
is switched on.
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.
Engine compartment257
Maintenance and care
Z

XMake sure that the windshield wipers are
switched off.
XPull release lever:on the hood.
The hood is released.
XReach into the gap between the hood and the radiator trim and press hood catch lever ;to
the left.
XRaise the hood.
XPull support strut ?out of bracket A.
XLift up support strut ?and insert it into yel-
low retaining clip =.
Closing the hood
XRaise the hood slightly and, at the same time,
remove support strut ?from yellow retaining
clip =.
XSwing support strut ?down and press it into
bracket Auntil it engages.
XLower the hood and let it fall from aheight of
approximately 8in(20 cm).
XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Do not press the hood
closed. Open the hood again and close it with
alittle more force.
Engine oil
General notes
Depending on your driving style, the vehicle
consumes up to 0.9 US qt (0.8 liters) of oil per
600 miles (1,000 km). The oil consumption may
be higher than this when the vehicle is new or if
you frequently drive at high engine speeds.
Depending on the engine, the oil dipstick may be
in ad ifferent location.
When checking the oil level:
Rpark the vehicle on alevel surface
Rthe engine should be switched off for approx-
imately five minutes if the engine is at normal
operating temperature
Rif the engine is not at normal operating tem-
perature, e.g. if the engine was only started
briefly, wait about 30 minutes before carrying
out the measurement
Checking the oil level using the oil dip-
stick
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 compartmentp oses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
258Engine compartment
Maintenance and care

XPull 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) engine oil.
Adding engine oil
GWARNING
Certain components in the engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workingint he engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
If engine oil comes into contact with hot com- ponentsint he engine compartment ,itmay
ignite. There is arisk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck.L et the engine cool down and
thoroughly clean the engine oil off the com-
ponentsb efore starting the engine.
HEnvironmenta lnote
When adding oil, take care not to spill any. If
oil enter sthe soil or waterways, it is harmful to
the environment.
!Use only engine oils and oil filters that are
approved for vehicles with aservice system. A
list of the engine oils and oil filters that have
been tested and approved in accordancew ith
Mercedes-Benz Specifications for Service
Products is availableata ny authorized
Mercedes-Benz Center.
The following cause engine failure or damage
to the exhaust system:
RUse of engine oils and oil filters that have
not been expressly approved for the service
system
RReplacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
RUse of engine oil additives
!Do not add too much oil. adding too much
engine oil can result in damage to the engine
or to the catalytic converter. Have excess
engine oil siphoned off.
Example: engine oil cap
XTurn cap :counter-clockwise and remove it.
XAdd engine oil.
If the oil level is at or below 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 level again with the oil dipstick
(Ypage 258).
Further information on engine oil (
Ypage 317).
Engine compartment259
Maintenance and care
Z

Checking and addingother service
products
Checking coolan tlevel
GWARNING
The coolings ystem is pressurized, particularly
when th emotor is warm .Ifyou open th ecap,
you coul dbescalded if hot coolant sprays out.
Thereisar iskofi njury.
Let th eenginec ooldown before you open the
cap. Wear gloves and eye protection.S lowly
open th ecap to relieve pressure.
!The coolant may only be checked and cor-
recte dwhen th eengineisc ool(coolantt em-
peratur ebelow 10 4‡(40 †) .Checkin gthe
coolantw hen thecoolantt emperatur eis
above1 04‡(40 †) ma yresult in damage to
th ee ngineortot heengin ecoolings ystem.
XPar kthe vehicl eonal evel surface.
Only chec kthe coolan tlevel when th evehicl e
is on alevel surfac eand th eengineh as cooled
down .
XTurn th eSmartKey to position 2in th eigni-
tion loc k(Ypage 122).
XCheckthe coolan ttem perature display in th e
instrumen tcluster.
The coolan ttem perature mus tbebelow
10 4‡ (40 †).
XTurn th eSmartKey to position g
(Ypage 122) in th eignition loc k.
XSlowly turncap : counter-clockwise and to
reliev eexces spressure.
XTurn cap :further counter-clockwise and
remove it .
If th ecoolan tisatt helevel of marke rbar=
in th efiller neck when cold, there is enough
coolan tincoolan texpansion tan k;.
XIf necessary, add coolan ttha thas been tested
and approve dbyMercedes-Benz.
XReplacecap : and tur nitclockwise as far as
it will go.
Fo rfurther information on coolant, see
(
Ypage 318).
Windshiel dwasher system
GWARNIN G
Certain component sintheengin ecom part-
ment, suc hastheengine, radiato rand part s
of th eexhaust system, can become ver yhot.
Working in th eenginec om partmen tposes a
ris kofi njury.
Where possible, let th eenginec ooldown and
touch only th ecom ponent sdescribed in th e
following.
GWARNIN G
Windshield washer concentrate could ignit eif
it comes into contact wit hhot engin ecom po-
nent sort heexhaust system. There is arisko f
fir ea nd injury.
Mak esuret hatnow indshield washer con-
centrat eisspilled next to th efiller neck .
XTo open: pull cap:upwards by th etab.
XAd dthe premixed washer fluid.
XTo close: press cap :onto th efiller neck
until it engages.
If th ewasher flui dlevel drops belo wthe recom-
mended minimum of 1liter, amessage appears
in th emultifunction display promptin gyou to
add washer flui d(
Ypage 216).
Further information on windshield washer fluid/
antifreez e(
Ypage 319).
260Engine compartment
Maintenance and care

ASSYSTPLUS
Service message
The ASSYS TPLUSs ervic einterval display
inform syou of th enexts ervic edue date.
You can fin dinformation on th etypeofs ervice
and servic eintervals in th 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 258).
The multifunction display shows aservic emes-
sage for several seconds, e.g. :
RServiceAin..d ays
RServic eAdue
RServic eAoverdueby..d ays
Dependin gontheoperating 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, indicates th etypeo f
service. A
standsfor 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; buttontos elect th e
Serv.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
Rin particularly dust yconditi ons, or if air-recir-
culation mod eisfrequentl yused
In these or similar operating conditions, hav e
th ei nterior filter, engin eair cleaner, engin eoil
and oil filter, for example, changed mor efre-
ASSYST PLUS261
Maintenance and care
Z

quently. Under arduous operatingconditions,
the tires must be checked more often. Further
information can be obtained at aqualified spe-
cialist workshop, e.g. an authorized Mercedes-
BenzC enter.
Driving abroad
An extensive Mercedes-Benz Service network is
also available in other countries. You can obtain
further information from any authorized
Mercedes-Benz Center.
Care
General notes
HEnvironmental note
Dispose of empty packagin gand cleaning
cloths in an environmentally responsible man-
ner.
!For cleanin gyour vehicle, do not use any of
the following:
Rdry, rough or hard cloths
Rabrasive cleanin gagents
Rsolvents
Rcleanin gagent scontainin gsolvents
Do not scrub.
Do not touch the surfaces or protective films
with hard objects, e.g. aring or ice scraper.
You could otherwise scratch or damage the
surfaces and protective film.
!Do not park your vehicle for along period of
time directly after cleaning, particularly after
cleanin gthe wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore,
drive for afew 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.
Regular care of your vehicle is acondition for
retaining the quality in the long term.
Use care productsa nd cleaningagent srecom-
mended and approved by Mercedes-Benz.
Washing the vehicle and cleaning the
paintwork
Automatic car wash
GWARNING
Braking efficiency is reduced after washing
the vehicle. There is arisk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
condition suntil full brakin gpower is restored.
!When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoid damage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations:
Rwhen towing the vehicle
Rin the car wash
!Never clean your vehicle in aTouchless
Automatic Car Wash as these use special
cleanin gagents. These cleanin gagent scan
damage the paintwor korplastic parts.
!Make sure that the automatic transmission
is in position Nwhen washing your vehicle in
at ow-through car wash. The vehicle could be
damaged if the transmission is in another
position.
!Make sure that:
Rthe side windows and the sliding sunroof
are fully closed.
Rthe blower is switched off.
Rthe windshield wiper switch is at position 0.
The vehicle may otherwise be damaged.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleanin gitinana utomatic car wash.
After using an automatic car wash, wipe off wax
from the windshield and the wiper blades. This
will prevents mears and reduce wiping noises
caused 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.
262Care
Maintenance and care