MERCEDES-BENZ CLA COUPE 2018 Owner's Manual

When leaving the vehicle, alwaystake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The memory function can be used at any time,
e.g. even when the SmartKey is not in the igni-
tion lock.
Storing settings
With the memory function, you can store up to
three differents ettings, e.g. for three different
people.
The following settings are stored as asingle
memory preset:
Rseat and backres tposition
Rdriver's side: position of the exterior mirrors
on the driver's and front-passenger sides
XAdjust the seat (Ypage 92).
XAdjust the exterior mirror on the driver's side
(Ypage 96).
XBriefly press the Mmemory button and then
press preset position button 1,2or 3within
three seconds.
The settings are stored in the selected preset
position. Atones ounds when the settings
have been completed.
Calling up astored setting
XPress and hold the relevant preset position
button 1,2or 3until the seat and exterior
mirrors are in the stored position.
iThe setting procedure is interrupted as soon
as you release the storage position button.
Memoryf unction99
Seats, steering wheel and mirrors
Z

Exteriorlighting
General notes
For reasonsofs afety, Mercedes-Ben zrecom-
mends that you driv ewith th elightss witched on
even durin gthe daytime. In somec ountries,
operatio noftheheadlamps varies due to legal
requirement sand self-imposedo bligations.
Settingthe exterio rlighting
Settin goptions
Exterior lighting can be set usingt he:
Rlight switch
Rcombinatio nswitch (Ypage 101)
Ron-board compute r(Ypage 187)
Light switch
Operation
1WLeft-hands tanding lamps
2 XRight-hand standing lamps
3TParking lamps ,licens eplatea nd
instrumen tcluste rlighting
4 ÃAutomatic headlampm ode, controlled
by th elight sensor
5LLow-beam/high-beam headlamps
B RRear fog lamp
If you hear awarning tone when you leave the
vehicle ,the lightsm ay still be switched on.
XTurn thelight switch to the Ãposition.
The exteriorl ighting (excep tthe parking/stand-
ing lamps )switches off automaticall yifyou:
Rremove th eSmartKey from th eignition lock
Ropen th edriver'sd oor with th eSmartKey in
position g
Automatic headlamp mode
Ãis thepreferred light switch position:
RThe light settin gisautomaticall yselected
according to th ebrightnes softheambient
light (exception: poor visibilityd ue to weather
conditionss uchasfog,sno wors pray).
RWiththeSmartKey in position 1in th eigni-
tio nlock: th eparking lamps are switched on
or off automaticall ydependingont hebright-
nes soft heambient light.
RWitht heengine running: if you have activated
the DaytimeR unningLightsfunction via
th eo n-board computer, th edaytime running
lamps or th eparking lamps and th elow-beam
headlamps are switched on or off automati-
cally dependingont hebrightnes softheambi-
ent light.
XTo switch on th eautomatic headlamp
mode: turnthe light switch to the Ãposi-
tion.
GWARNING
When th elight switch is set to Ã,thelow-
beam headlamps may no tbeswitched on
automaticall yifthere is fog ,sno woro ther
causes of poor visibilityd ue to theweather
conditionss uchasspray. Thereisar isk of an
accident.
In suchs ituations,tur nt he light switch to
L.
The automatic headlampf eature is only an aid.
The driver is responsible for th evehicle's light-
ing at all times.
Canada only:
The daytime runnin glamps improve th evisibility
of your vehicle durin gthe day. The daytime run-
nin glamps function is required by law in Can-
ada. It canno tthe refore be deactivated.
When th eengine is runnin gand th evehicle is
stationary: if you shiftt heautomatic transmis-
sion from adriving position to position jthe
daytime runnin glamps or low-beam headlamps
go out after 3minutes.
When th eengine is running, th evehicle is sta-
tionar yand in bright ambient light:ify ou turnthe
light switch to the Tposition,t hedaytime
runnin glamps and parking lamps tur non.
If th eengine is runnin gand you tur nthe light
switch to the Lposition,t hemanual settings
100Exterior lighting
Lightsa nd windshield wipers

take precedence overthe daytime running
lamps.
US Ao nly:
The daytime running lamps improve the visibility
of your vehicl eduringt he day. To do this, the
daytime running lamps functio nmustb e
switched on using the on-board computer
(
Ypage 187).
If the engine is running and yo uturnt he light
switch to the TorL position, the manual
setting stake precedence ove rthe daytime run-
ning lamps.
Low-beam headlamps
Even if the light sensord oesn ot detect thatiti s
dark, the parking lamps and low-bea mhead-
lamps switch on when the ignition is switched on
and the light switch is settot heL position.
Thi sisa particularly usefu lfun ctio nint he event
of rain and fog.
XTo switc honthe low-beam headlamps:
tur nthe SmartKeytop osition 2in the igni-
tio nlockors tart the engine.
XTurn the light switch to L.
The green Lindicator lamp in the instru-
ment clusterl ights up.
Rea rfog lamp
The rea rfog lamp improves visibility of your
vehicl efor the trafficb ehindint he event of thick
fog .Pleas etake note of the country-specific
regulations for the us eofrearfog lamps.
XTo switc honthe rear fogl amp:turnthe
SmartKeyint he ignition lock to position 2or
s
tart the engine.
XTurn the light switch to LorÃ.
XPress the Rbutton.
The yellow Rindicator lamp in the instru-
ment clusterl ights up.
XTo switc hoffthe rear fogl amp:press the
R button.
The yellow Rindicator lamp in the instru-
ment clusterg oeso ut.
iWhen the rea rfog lamp is switched on, the
cente rbrake lamp in the tai llam pswitches off
du etoal egalrequirement.
Parkin glamps
!If the battery charge is ver ylow ,the parking
lamps or standing lamps ar eautomatically
switched off to enabl ethe next engine start.
Alway sparky ourvehicl esafelya nd in awelllit area
,ina ccordance with the relevant legal
stipulations. Avoidu sing the Tparking
lamps ove raperiodofs everal hours. If pos-
sible, switch on the right-hand Xor left-
hand W standing lamps.
XTo switc hon:tur nthe light switch to T.
Th eg reen T indicator lamp in the instru-
ment clusterl ights up.
Standin glamps
Switching on the standing lamps ensures the
corresponding side of the vehicl eisillumin ated.
XTo switc honthe standin glamps: the
SmartKeyisn ot in the ignition lock or it is in
position gin the ignition lock.
XTurn the light switch to W(left-hand side of
the vehicle) or X(right-hand side of the
vehicle).
Combination switch
XTo indicate briefly: press the combination
switch briefl ytothe pressure point in the
directio nofarrow ;or?.
Th ec orresponding tur nsigna lflashe sthree
times.
XTo indicate: press the combinatio nswitch
beyond the pressure point in the directio nof
arrow ;or?.
XTo switc honthe high-beam headlamps:
tur nthe light switch to LorÃ.
XPress the combinatio nswitch beyond the
pressure point in the directio nofarrow :.
Th eh igh-beam headlamps onl yswitch on in
the à positio nifthe low-bea mheadlam ps
ar eo n.
Th eb lue K indicator lamp in the instru-
ment clusterl ights up when the high-beam
headlamps ar eswitched on.
Exterior lighting101
Lights and windshield wiper s
Z

XTo switchoff the high-beam headlamps:
move the combinatio nswitch back to its nor-
malp osition.
The blue Kindicator lamp in the instru-
ment cluster goe sout.
Vehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active, it
controls activation and deactivation of the
high-bea mheadlamps (
Ypage 102).
XTo switc honthe high-beam flasher: pull
the combinatio nswitch in the direction of
arrow =.
Hazard warning lamps
XTo switc honthe hazard warning lamps:
press button :.
All turn signals flash. If yo unow switch on a
turn signalu sing the combinatio nswitch ,only
the turn signall ampont he corresponding
side of the vehicl ewillf lash.
XTo switc hoff the hazard warning lamps:
press button :.
The hazard warning lamps automaticall yswitch
on if:
Ran ai rbag is deployed or
Rthe vehicl edecelerates rapidly from aspeed
of above 45 mph (70 km/h )and comestoa
standstill
The hazard warning lamps switch off automati-
cally if the vehicl ereachesas peed of above
6m ph (10 km/h )again afteraf ullb rake appli-
cation.
The hazard warning lamps stil lope rate if the
ignition is switched off.
Adaptiv eHighbeam Assist
General notes
Yo uc an us ethisf unctio ntoset the headlamps
to change between lo wbeama nd high beam
automatically. The system recognizes vehicles
with thei rlights on, either approaching from the
opposite direction or traveling in front of your
vehicle, and consequentlys witches the head-
lamps from high beam to lo wbeam. Once the
system no longer detects any otherv ehicles, it
reactivates the high-bea mheadlamps.
The system's optica lsensor is locate dbehin d
the windshield nea rthe overhead controlp anel.
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recognize
roadu sers:
Rwh oh avenol ights ,e.g.p edes trians
Rwhoh avep oorlighting, e.g .cyclists
Rwhose lighting is blocked, e.g .byab arrier
On very rar eoccasions, Adaptive Highbeam
Assist mayf ailtor ecognize othe rroadu sers
thath avel ights ,orm ayrecognize them too
late. In this, or in similar situations, the auto-
matic high-bea mheadlamps will not be deac-
tivated or will be activate dregardless. There is
ar iskofana ccident.
Alway scarefull yobserve the traffic conditions
and switch off the high-bea mheadlamps in
goo dtime.
Adaptive Highbeam Assist canno ttake into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is onlyana id.Y ou are
responsibl efor adjusting the vehicle's lighting
to the prevailing light, visibility and traffic con-
ditions.
In particular, the detection of obstacle scan be
restricte difthereis:
Rpoor visibility ,e.g.d ue to fog,h eavy rainor
snow
Rdirt on the sensors or the sensors are
obscured
102Exterior lighting
Lights and windshield wiper s

Switching Adaptive Highbeam Assist
on/off
XTo switch on:turn the light switch to Ã.
XPress the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunction
display lights up when it is dark and the light
sensor activates the low-beam headlamps.
If you are driving at speeds above approx-
imately 19 mph (30 km/h )and no other road
users are detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in the
instrumentc luster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road users have been detected or the roads are ade-
quately lit:
The high-beam headlamps are switched off
automatically. The Kindicator lamp in the
instrumentc luster goes out. The _indi-
cator lamp in the multifunction display
remains lit.
XTo switch off: move the combination switch
back to its normal position.
The _ indicator lamp in the multifunction
display goes out.
Headlamps fogged up on the inside
Certain climatic and physical conditionsm ay
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the
headlamp.
Interior lighting
Overview of interior lighting
Front overhead control panel
:p Switches the left-hand front reading
lamp on or off
;c Switches the front interior lighting on
=vSwitches the rear interior lighting on or
off
?| Switches the front interior lighting/
automatic interior lighting control off
Ap Switches the right-handf ront reading
lamp on or off
BSwitches the automatic interior lighting con-
trol on
Rear compartment control panel
:p Switches the left-hand reading lamp
on/off
;p Switches the right-handr eading lamp
on/off
Interior lighting103
Lights and windshieldw ipers
Z

Interior lighting control
General notes
In order to preven tthe vehicle's battery from
discharging ,the interio rlighting function sare
automatically deactivated after som etime
except when th eSmartKey is in position 2in
th ei gnition lock.
The color and brightness for th eambien tlighting
may be set via th emultimedia system; see th e
separat eoperating instructions.
Automati cinterior lighting control
XTo switch on: set theswitch to center posi-
tion B.
XTo switch off :set th eswitch to th e|
position .
The interio rlighting automatically switches on if
you:
Runlock th evehicl e
Ropen adoor
Rremove th eSmartKey from th eignition loc k
The interio rligh tisa ctivated for ashort while
when th eSma rtKey is remove dfromt heignition
lock. This delaye dswitch-off can be adjusted via
th em ultimedia system; see th eseparat eoper -
ating instructions.
Replacin gbulbs
Important safety notes
GWARNIN G
Bulbs, lamp sand connectors can get ver yhot
when operating .Ifyou chang eabulb, you
could burn yourself on these components.
Ther eisar iskofi njury.
Allow these component stocooldown before
changing abulb.
Do no tuse ab ulb if it has been dropped or if it s
glass tub ehas been scratched.
The bulb may explod eif:
Ryou touch it
Rit is hot
Ryou dro pit
Ryou scratch it Use bulbs only in closed lamp
sthath aveb een
designed for this purpose .Onlyi nstal lspar e
bulbs of th esam etypea nd th especifie dvolt-
age.
Mark sont heglass tub ereduce th eservic elife
of th ebulbs .Don ottouch th eglass tub ewith
your bare hands. If necessary, clean th eglass
tub ew hen cold wit halcohol or spirit and rub it
off wit halint-free cloth .
Protect bulbs from moisture during operation .
Do no tallow bulbs to come int ocontac twith
liquids.
Replac eonlyt he bulbs listed (
Ypage 104).
Hav ethe bulbs that you canno tchang ey ourself
replace dataq ualified specialist workshop.
If you require assistanc ereplacing bulbs ,con -
sult aqualified specialist workshop.
If th enew bulb still does no tligh tup, consult a
qualified specialist workshop.
Headlamps and lights are an important aspect of
vehicl esafety. You must therefor emakes ure
that these function correc tl
y
ata ll times .Have
th eh eadlamp setting checke dregularly.
Vehicles with LED headlamps: thef ront and
rear lamp clusters of your vehicl eare equipped
wit hL ED bulbs .Don otreplace th ebulbs your-
self .Contac taqualified specialist workshop
wit hthe necessar yspecialist knowledge and
tools to carry out th eworkr equired.
Overview of bul btypes
You can replace th efollowin gbulbs .The bulb
typ ecan be foun dinthelegend .
104Replacingb ulbs
Lightsand windshield wipers

Vehicles with halogenheadlamps
:
Turn signal lamp: PY 21 W
;High-beam headlamps/daytime running
lamps/parking lamps/standing lamps:
H15 55 W/15 W
=Low-beam headlamp: H7 55 W
Tail lamps (vehicles with halogenh eadlamps)
:
Rearf og lamp: P21W
;Brake lamp: W16W
=Brake lamp:W16W
?Turn signal lamp: PY 21 W
ABackup lamp: W16W
Replacing front bulbs
Removing and installingt he coverinthe
front wheelh ousing
You must remove the cover of the front wheel
housing before you can change the front turn
signal lamp.
XTo remove:switch off the lights.
XTurn the front wheelsi nwards.
XTurn rotary knob:through 90°.
Cover ;is released.
XPush cover ;down.
XTo install: push cover ;up.
XTurn rotary knob :through 90°.
Cover ;is locked.
Low-beam headlamps (halogenh ead-
lamps)
XRemove the cover in the front wheel housing
(Ypage 105).
XTurn housing cover :counter-clockwise and
remove it.
XTurn bulb holder ;counter-clockwise and
pull out.
XPull the bulb out of bulb holder ;.
Replacing bulbs105
Lights and windshieldwipers
Z

XInsert the new bulbinto bulbholder;.
XInsert bulbh older;and turn it clockwise.
XPress on housing cover :and turn it to the
right.
XReplace the cover in the front wheel housing
(Ypage 105).
High-beam headlamps/daytime run-
ning lamps/parking lamps and stand-
ing lamps (halogen headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise and
remove it.
XTurn bulbh older;counter-clockwise and
pullo ut.
XInsert the new bulba nd engage it to the stop.
XPress on housing cover :and turn it to the
right.
Turn signals (halogen headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn bulbh older:counter-clockwise and
pullo ut.
XTurn the bulbc ounter-clockwise and pulli t
out of bulbh older:.
XInsert the new bulbi nto bulbholder:.
XInsert bulbh older:and turn it clockwise
until it engages.
Replacing rear bulbs
Openinga nd closing the side trim pan-
els
View of right-hand side trim panel
You must open the side trim panel in the trunk
before you can replace the bulbs in the tail
lamps.
XTo open: release right or left side trim
panel :at the top and fold it down in the
direction of the arrow.
XTo close: insert side panel :.
Tail lamps
XSwitch off the lights.
XOpen the trunk.
XOpen the side trim panel (Ypage 106).
106Replacing bulbs
Lights and windshield wipers

XPress retainingclips :at the same time in
the direction of the arrows.
XCarefully remove the bulb holder together
with the connected plug and the bulbs.
Bulb holder
;
Brake lamp
=Brake lamp
?Rear fog lamp
ABackup lamp
BTurn signals
XBrake lamp and backup lamp: remove the
corresponding bulb from the bulb holder.
XInsert the new bulb into the bulb holder.
XRear fog lamp and turns ignal:press the
bulb gently into the bulb holder, turn it coun-
ter-clockwise and remove it from the bulb
holder.
XInsert the new bulb into the bulb holder and
turn it clockwise.
XReinsert the bulb holder and engage on
retainin gclips :.
XClose the side trim panel (Ypage 106).
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield can scratch the glass
if wiping takes place when the windshield is
dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, alwaysu se
washer fluid when operating the windshield
wipers.
!If the windshield wipers leave smears on the
windshield after the vehicle has been washed
in an automatic car wash, wax or other resi-
dues may be the reason for this. Clean the
windshield using washer fluid after washing
the vehicle in an automatic car wash.
Combination switch
1
$ Windshield wiper off
2ÄIntermittent wipe, low (rain sensor set
to low sensitivity)
3Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4° Continuous wipe, slow
5¯Continuous wipe, fast
BíSingle wipe/î Wipes the wind-
shield using washer fluid
XSwitc hont he ignition.
XTurn the combination switch to the corre-
sponding position.
!Vehicles with arain sensor: if the windshield
becomes dirty in dry weather conditions, the
windshield wipers may be activated inadver-
tently. This could then damage the windshield
wiper blades or scratch the windshield.
For this reason, you should alwayss witch off
the windshield wipers in dry weather.
Vehicles with arain sensor: in the ÄorÅ
position, the appropriate wiping frequency is
automatically set accordingtot he intensity of
the rain. In the Åposition, the rain sensor is
more sensitive than in the Äposition, caus-
ing the windshield wiper to wipe more fre-
quently.
If the wiper blades are worn, the windshield will
no longer be wiped properly. This could prevent
you from observing the traffic conditions.
Windshield wipers107
Lights and windshield wipers
Z

Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wiper sbegin to move while
yo ua re changing the wiper blades, yo ucould
be trapped by the wiper arm .There is arisko f
injury.
Alway sswitch off the windshield wiper sand
ignition before changing the wiper blades.
!To avoid damaging the wiper blades, make
sure that yo utouch only the wiper arm of the
wiper.
!Nevero pent he hoodifaw indshield wiper
arm hasb eenf olded away from the wind-
shield.
Neverf oldawindshield wiper arm withouta
wiper blad ebacko nto the windshield.
Holdt he windshield wiper arm firmly when
yo uc hange the wiper blade. If yo urelease the
windshield wiper arm withoutaw iper blade
and it falls onto the windshield ,the windshield
may be damaged by the force of the impact.
Mercedes-Benz recommendst hat youhave
the wiper blades changed at aquali fied spe-
cialist workshop.
Changin gthe windshield wiper blades
Removin gthe wiper blades
XVehicles without KEYLESS-GO or KEY-
LESS-GOs tart function: remove the Smart-
Key from the ignition lock.
XVehicles with KEYLESS-GO or KEYLESS-
GO start function: switch off the engine.
XFoldthe wiper arm away from the windshield.
XHoldontot he wiper arm with one hand. With
the otherh and, turn wiper blad eindirection
of arrow :away from the wiper arm as far as
it will go.
XSlide catch ;in the direction of arrow =
unti lite ngages in the removal position with a
noticeable click.
XRemove the wiper blad einthe direction of
arrow ?away from the wiper arm.
Installing the wiper blades
XInsert the new wiper blad einto the wiper arm
in the direction of arrow :.
108Windshieldwipers
Lights and windshield wipers