engine MERCEDES-BENZ CLS COUPE 2018 Owner's Manual

#
Make sure that mar ked space 2is em pty. #
Remo vekey1 from theke yring. #
Place key1 in mar ked space 2.
The vehicle will start af ter a short time.
If yo ure mo vekey1 from mar ked space 2
th e engine continues running. For fur ther
ve hicle starts ho wever,ke y1 must be loca‐
te d in mar ked space 2during the entire
journe y. #
Have theke y1 checked at a qualified spe‐
cialist workshop. If
th eve hicle does not star t: #
place key1 in mar ked space 2and lea ve
it th ere. #
Depress the brake pedal and start theve hicle
using thest art/ stop button.
% You can also swit chon the po wer supp lyor
th e ignition with thest art/ stop button. St
arting theve hicle via Remo teOnline serv‐
ices Cooling or heating
theve hicle interior before
commencing your journey
% This function is not available in all countries.
If yo ustart theve hicle via your smartphone, the
pr ev iously selec ted air conditioning adjustment
is active.
Ensure thefo llowing before starting the engine:
R the legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R it is safe tostart and runth e engine where
yo ur vehicle is par ked. R
the fuel tank is su fficiently filled.
R thest ar ter battery is suf ficiently charge d.
% You can also set thete mp erature with your
smartphone. In form ation on Mercedes me
connect and other services: http://
www.mercedes.me
This function is not available for all models.
Charging the bat tery before commencing
yo ur journey
R Ifth eve hicle battery is discharged, you
re cei vea message on your smartphone.
R You can then start theve hicle with the
smartphone tocharge the batter y.
R The vehicle is automatically switched off
af te rte n minu tes.
Ensure thefo llowing before starting the engine:
R the legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R it is safe tostart and runth e engine where
yo ur vehicle is par ked.
R the fuel tank is su fficiently filled. 15 2
Driving and pa rking

St
arting theve hicle &
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work. #
Alw ays secure the engine against unin‐
te ntional starting before car rying out
maintenance or repair work. Re
quirements:
R park position jis selected.
R the anti- theft alarm sy stem is not activated.
R the panic alarm is not activated.
R the hazard warning lights are switched off.
R the bonn etis closed.
R the doors are closed and loc ked.
R the windo wsand sliding sun roof are closed. #
Start theve hicle using the smartphone: R
afte reve ryvehicle start, the engine runs for
te n minu tes.
R you can car ryout a maximum of two consec‐
utive starting attem pts. The vehicle must be
st ar ted once with theke y before trying to
st art theve hicle again with the smartphone.
R you can stop theve hicle again at any time.
R further information can be found in the
smartphone app.
Securing the engine against starting before
car rying out maintenance or repair work: #
switch on the hazard warning lights.
or #
unlock the doors.
or #
open a side window or the sliding sunroof. Ru
nning-in no tes To
preser vethe engine during thefirs t1, 500 km:
R drive at varying road speeds and engine
speeds. R
drive theve hicle in drive program A
or ;.
R change gear before there v counter needle is
Ô ofthewa yto there d area of there v coun‐
te r.
R do not shift down a gear manually in order to
brake.
R avoidoverstra ining theve hicle, e.g. driving at
full thro ttle.
R vehicles with automatic transmission: do
not depress the accelera tor pedal be yond the
pressure point (kickdown).
R only increase the engine speed gradually and
accelera tetheve hicle tofull speed af ter
1, 500 km.
This also applies when the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing running-in
no tes:
R in cer tain driving and driving saf ety sy stems,
th e sensor sy stem adjusts automatically
while a cer tain dis tance is driven af terthe
ve hicle has been delivered or af terre pairs. Driving and parking
15 3

Fu
ll sy stem ef fectiveness is not achie ved
until the end of this teach-in process.
R brakepads, brake discs and tyres that are
either new or ha vebeen replaced only ach‐
ie ve optimum braking ef fect and grip af ter
se veral hundred kilom etre s of driving. Com‐
pensate forth ere duced braking ef fect by
applying greater forc eto the brake pedal. Note
s on driving &
WARNING Risk of accident due to
objects in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road
saf ety of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Alw aysfit th efloor mats securely and
as prescribed in order toensure that th
ere is alw ays suf ficient room forthe
pedals. #
Do not use loose floor mats and do not
place floor mats on top of one ano ther. &
WARNING Risk of accident due to
unsuitable foot we ar
Operating the pedals may be impaired by
we aring unsuitable foot we ar, e.g.:
R plat form shoes
R high-heeled shoes
R slippers #
Alw ayswe ar suitable foot we ar when
driving so that you can operate the ped‐
als safel y. &
WARNING Risk of accident when switch‐
ing off the ignition when driving
If yo u swit choff the ignition while driving,
saf ety functions are restricted or no longer
av ailable. This may af fect the po werst eering sy
stem and the brake forc e boosting, for
ex ample.
Yo u will then need touse considerably more
fo rc eto steer and brake. #
Do not switch off the ignition while driv‐
ing. &
DANG ER Risk of fata l injuries due to
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and can lead topoisoning. #
Never lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. 15 4
Driving and pa rking

#
Do not shi ftdown on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. &
DANG ER Risk of fata l injuries due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case, forex ample, if theve hi‐
cle is stuck in sn ow. #
When the engine or thest ationary
heater are running, keep theta ilpipe
and the area around theve hicle clear of
sno w. #
Open a window on the side of theve hi‐
cle facing the wind toensure an ade‐
qu ate supply of fresh air. &
WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il. #
Never use the brake pedal as a foot re st. #
Do not depress the brake pedal and the
accelerator pedal at the same time
while driving. *
NO
TECausing wearto the brake linings
by permanently depressing the brake
pedal #
Do not permanently depress the brake
pedal while driving. #
Touse braking ef fect of the engine,
shift toa lo werge ar in good time. *
NO
TEDama getothe driv etra in and
engine when pulling away #
Do not warm upthe engine when sta‐
tionar y.Pull away immediatel y. #
Avoid high engine speeds and full thro t‐
tle until the engine has reached its
operating temp erature. #
Do not allow the wheels tospin. *
NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel The engine is not
running smo othly and is
misfiring.
Non-combus ted fuel may get into the cata‐
lytic con verter. #
Only depress the accelera tor pedal
slightl y. #
Have the cause rectified immediately at
a qu alified specialist workshop. Driving and parking
15 5

Limited braking ef
fect on salt-trea tedro ads:
R due tosalt build-up on the brake disks and
brakepads, the braking dis tance can increase
conside rably or result in braking only on one
side
R maintain a much greater safe dis tance tothe
ve hicle in front
To preve nt salt build-up:
R brake occasionally while paying attention to
th e tra ffic conditions
R carefully depress the brake pedal at the end
of the journey and when starting the next
journey ECO
start/s top function Ope
ration of the ECO start/s top function
Ve hicles without a 48 V on-board electrical
sy stem (EQ Boost technology)
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers. The engine is au
tomatically switched off if the
fo llowing conditions are me t:
R you brake theve hicle toast andstill in trans‐
mission position hori.
R if all vehicle conditions for an auto matic
engine stop are met.
The è symbol appears in the multifunction
display when theve hicle is stationar y.If not all
th eve hicle conditions are met, theç symbol
appears in the multifunction displa y.
The engine is restar ted automatically if:
R youre lease the brake pedal in transmission
position hwhen the HOLD function is not
active.
R you shift from transmission position j.
R you en gage transmission position hork.
R you depress the accelera tor pedal.
R an auto matic engine start is necessar y.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds. The Vehicle is operational
Switch off the ignition before exiting display messa
gealso appears in the multifunction dis‐
pla y.Ifyo u do not swit choff the ignition, the
ignition is automatically switched off af ter one
minute.
Ve hicles with a 48 V on-board electrical sys‐
te m (EQ Boo sttech nology)
The engine is switched off automatically in the
fo llowing situations if all vehicle conditions for
an automatic engine stop are me t:
R you brake theve hicle toast andstill in trans‐
mission position hori.
R you en gage transmission position j.
R you depress the brake pedal when driving at
speeds below 20 km/h.
The needle of there v counter points tozero in
th e multifunction displa y.
If yo u swit chon the HOLD function or select
transmission position j,the engine will auto‐
matically stop in thefo llowing situations:
R youstop behind a vehicle that is pulling
aw ay. 15 6
Driving and pa rking

R
youstop at a stop sign when there is no vehi‐
cle in front of you.
R you turn thesteering wheel hard at a low
speed.
The engine is restar ted automatically if:
R youre lease the brake pedal in transmission
position hwhen the HOLD function is not
active and theve hicle is not in drive program
A or; andtheve hicle does not start
to mo ve.
R you en gage transmission position hork.
R youre lease the brake pedal, theve hicle is
not in Glide mode and it starts tomo veon a
ge ntle downhill gradient at a speed below
3 km/h.
R you depress the accelera tor pedal.
R an auto matic engine start is necessar y.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds. The Vehicle is operational
Switch off the ignition before exiting display
messa gealso appears in the multifunction dis‐
pla y.Ifyo u do not swit choff the ignition, the ignition is automatically switched off af
ter one
minute.
Deactivating or activating the ECO start/
st op function #
Press button 1.
If indicator lamp 2lights up, the ECO start/
st op function is activated. %
Depending on the model and theve hicle
equipment, the button may also be located
at a dif fere nt position in the cent reconsole. ECO displ
ayfunction The ECO display summa
rises the driving charac‐
te rist ics from thest art of the journey toits com‐
pletion and assists you in achieving the most
economical driving style.
Yo u can influence consum ption if you:
R drive with particular care
R drive theve hicle in drive program ;.
R obser vethege arshift recommendations Driving and pa
rking 157

The inner segment lights up green and
the outer
segment fills up:
R 1 Moderate acceleration
R 2 Gentle decele ration and rolling
R 3 Consis tent speed
The inner segment is gr eyand the outer seg‐
ment em pties:
R 1 Sporty acceleration
R 2 Heavy braking
R 3 Fluctuations in speed
Yo u ha vedriven economically when:
R theth re e outer segments are comple tely fil‐
led simultaneously
R the ECO display border lights up
The additional range achi eved as a result of your
driving style in comparison with a driver with a
ve ry sporty driving style is shown under Bonus
from start . Therange displ ayed does not indi‐
cate a fixe dre duction in consum ption. ECO Assist function
Ve
hicles with a 48 V on-board electrical sys‐
te m (EQ Boo sttech nology):
ECO Assist analyses data forth eve hicle's expec‐
te dro ute. This allo wsthe sy stem tooptimally
adjust the driving style fo rth ero ute ahead, sa ve
fuel and recuperate. If the sy stem de tects an
eve nt ahead, e.g. a speed limit or a roundabout,
it appears on the multifunction display 1. The
fo llowing symbols can be displa yed: Not all
events can be displa yed, depending on the
engine type. 1
Event ahead
2 Distance totheeve nt ahead
3 "Foot off the accelerator" prom pt
A di fferent number of segments 2will appear
around the symbol depending on the dis tance to
th eeve nt ahead:
R few segments: theeve nt ahead is near
R manysegments: theeve nt ahead is fur ther
aw ay
When theve hicle nears theeve nt, ECO Assi st
will calculate the optimal speed for maximum
fuel economy and recuperati veenergy based on
th e dis tance, speed and downhill gradient. The 15 8
Driving and pa rking

Foot off the accelerator
message will appear on
th e multifunction displa y.Ifth e driver lifts off the
accelerator pedal in good time, there maining
segments on the display will turn green until the
eve nt shown is reached. The driv etra in will be
set for maximum fuel econom y.The vehicle will
coast, with the combustion engine switched off
if necessar y,and recuperate on its own using
th e electric mo tor.Re cuperation will charge the
batter y.
If th ere is no response totheFoot off the accel-
erator prompt,th e segments will remain white.
The event will be shown for a short time af ter it
has been passed.
If th eeve nt in volves a vehicle ahead and when
th e coast-down recommendation is given, all
segments will immediately turn green once there
is a response totheFoot off the accelerator
prom pt.
Fo rAc tive ECO Assi stin drive program ;,
symbol 3will appear on the multifunction dis‐
play and on the head-up display beside transmis‐
sion position h. Symbol3will also appear
when the assis tant displ ayis not selec ted. ECO Assist is active only in drive programs
;
and A.
Sy stem limitations
ECO Assist can function more precisely if the
ro ute is main tained when route guidance is
active. The basic function is also available with‐
out active route guidance. Notall information
and traf fic situations can be fore seen. The qual‐
ity depends on the map data.
ECO Assist is only an aid. The driver is responsi‐
ble forke eping a safe dis tance totheve hicle in
front, forve hicle speed and for braking in good
time. The driver must be ready tobrake at all
times ir respective of whe ther the sy stem inter‐
ve nes.
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, high lyvariable
shade conditions, rain, sno w,fog or heavy
spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections. R
Ifth ere is dirt on the windscreen in the vicin‐
ity of the multifunction camera or the camera
is mis ted up, damaged or obscured.
R Ifth e traf fic signs are ha rdtodetect, e.g. due
to dirt or snow or insuf ficient lighting, or
because they are co vered.
R Ifth e information on the navigation sy stem's
digital map is incor rect or out of da te.
R Ifth e signs are ambiguous, e.g. traf fic signs
on construction sites or in adjacent lanes. Displaying ECO Assist
On-board compu
ter:
, Assistance #
Select ECO Assist . DY
NA MIC SELECT switch Fu
nction of theDY NA MIC SELECT switch Mercedes-AMG
vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognise dangers. Driving and pa
rking 15 9

Use
theDY NA MIC SELECT switch tochange
between thefo llowing drive prog rams:
R = (Individual): individual settings
R B (Sport Plus): particularly spo rty driving
st yle
R C (Sport): sporty driving style
R A (Comfort): comfortable and economi‐
cal driving style
R ; (Eco): particular lyeconomical driving
st yle
% The drive program selected appears in the
multifunction display of the on-board com‐
puter.
Depending on the drive prog ram, thefo llowing
sy stems change their characteristics:
R drive
-
engine and transmission management
- Active Dis tance Assi stDISTRONIC
R ESP ®
R Vehicles with AIR BODY CONT ROL or
DY NA MIC BODY CONT ROL:suspension R
electric po werst eering Selecting
the drive prog ram #
Press DYNA MIC SELECT switch 1forw ards
or backwards.
The drive prog ram selected appears in the
multifunction displa y. Configuring drive prog
ram I Multimedia sy
stem:
, Vehicle .
e DYNAMIC
SELECT .
Individual #
Select the individual setting. Switching
the operation feedba ckfor drive
prog rammes on/o ff Multimedia sy
stem:
, Vehicle .
e DYNAMIC SELECT #
Switch User notification onO or off ª.
When this function is active, a cor responding
message is shown in the media display when
a drive prog ramme is selected with the
DY NA MIC SELECT switch. Displaying
vehicle data Multimedia sy
stem:
, Vehicle .
e DYNAMIC SELECT #
Select Vehicle data.
The vehicle data is displa yed. 16 0
Driving and pa rking

Displaying engine data
Multimedia sy
stem:
, Vehicle .
e DYNAMIC SELECT #
Select Engine data.
% The values for engine output and engine tor‐
qu e may deviate from the nominal values.
Items that can influence this are, forex am‐
ple:
R Sea le vel
R Fuel grade
R Outside temp erature Au
tomatic transmission DIRECT SELECT le
ver Fu
nction of the DIRECT SELECT le ver &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R ope rate ve hicle equipment and become
trapped, forex ample.
Moreo ver,ch ildren could also set theve hicle
in motion by,fo rex ample:
R releasing the parking brake.
R shifting the automatic transmission out of
park position j.
R starting the engine. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe Digital Vehicle
Ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. #
Keep theve hicle key out of reach of
ch ildren. This also applies tothe Digital
Ve hicle Key if the "Digital Vehicle Key"
function is activated via Mercedes me
connect. &
WARNING Risk of accident due toincor‐
re ct gearshifting
If th e engine speed is higher than the idle
speed and you en gage the transmission posi‐
tion hork, theve hicle may accelerate
sharply. #
Ifyo u en gage the transmission position
h ork always depress the brake
pedal firm lyand do not accelerate at
th e same time. Driving and parking
161