ECO mode MERCEDES-BENZ CLS COUPE 2012 User Guide

Intelligen
tLight System
General notes The Intelligent Light System is
asyste mthat
adjusts the headlamps automatically to suit
the prevailing driving and weather conditions.
It offers advanced functions for improved illu-
mination of the road surface, e.g. depending
on the vehicle speed or weather conditions.
The system includes the active light function,
cornering light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(Y page 222).
Active light function The active light function is
asystem that
moves the headlamps according to the steer-
ing movementsoft he front wheels. In this
way,r elevant areas remain illuminated while
driving. This allowsy ou to recognise pedes-
trians, cyclists and animals.
Active: when the lights are switched on. Cornering light function The cornering light function improves the illu-
mination of the road over
awide angle in the
direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the dipped-beamh ead-
lamps are switched on.
Active:
R if you are driving at speeds below
40 km/ha nd the turnsignal is activated or
the steerin gwheel is turned.
R if you are drivin gatspeeds between
40 km/h and 70 km/h and tur nthe steer-
ing wheel.
Not active: if you are drivin gatspeeds above
40 km/h or switc hoff the tur nsignal or turn
the steerin gwheel to the straight-ahead posi-
tion.
The cornering lamp may remain lit for ashort
time, but is automatically switched off after
no mor ethan three minutes.
Motorway mode Exterior lighting
115Lightsand windscreen wipers Z

Control panel for THERMATIC automatic climat
econtrol (2-zone) :
Setsthe temperature, left (Y page 128)
; Demists th ewindscree n(Ypage 130)
= Switches th eZONE function on/of f(Y page 130)
? Switches coolin gwitha ir dehumidification on/of f(Ypage 127)
A Switches the rear window heatin gon/off (Y page 131)
B Setsthe temperature, right (Y page 128)
C Activates/deactivates air-recirculation mode (Y page 131)
D Setsthe air distribution (Y page 129)
E Increases the airflow (Y page 129)
F Reduces the airflow ( Ypage 129)
G Switches climat econtro lon/off (Y page 127)
H Setsclimate contro ltoautomatic mode (Y page 128) Information about using THERMATIC
automatic climat econtrol
The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climat econtrol.
R Activat eclimate contro lusing the Ãand
¿ buttons. The indicator lamps above
the à and¿ buttons light up.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again. R
Only use the air-recirculation mode briefly,
e.g. if there are unpleasant outside odours
or when in atunnel. The windows could
otherwise mist up as no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well.T he indi-
cator lamp above the ábutton goes
out. Overview of climate control systems
125Climatecontrol Z

Control panel for THERMOTRONIC automatic climat
econtrol (3-zone) Fron
tcontrol panel
: Setsthe temperature, left (Y page 128)
; Demist sthe windscreen (Y page 130)
= Activates/deactivates th eresidual heat function (Y page 132)
? Switche scooling with air dehumidificatio non/off (Y page 127)
A Switche sthe rea rwindow heatin gon/off (Y page 131)
B Setsthe temperature, right (Y page 128)
C Switches the ZONE function on/off (Y page 130)
D Switches climate control on/off (Y page 127)
E Setsthe air distribution (Y page 129)
F Increases the airflow (Y page 129)
G Reduces the airflow ( Ypage 129)
H Setsthe climate mode (Y page 128)
I Activates/deactivates air-recirculation mode (Y page 131)
J Setsclimate control to automatic mode (Y page 128)
Rea rcontrol panel
K Increases the airflow (Y page 129)
L Reduces the airflow ( Ypage 129)
M Display
N To reduc ethe temperature (Y page 128)
O To increase the temperature (Y page 128)126
Overview of climate control systemsClimate control

Information abou
tusing
THERMOTRONIC automatic climate
control
The following contains instructions and rec-
ommendations to enable you to get the most
out of your THERMOTRONIC automatic cli-
mate control.
R Activate climate control using the Ãand
¿ buttons. The indicato rlamps above
the à and¿ buttons light up.
R In automatic mode, you can also use the
ñ buttontos etac limate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM leve lisrecommended.
R Set th etem peratur eto22†.
R Only use th edemisting function briefly until
th ew indscree nisclear again.
R Only use the air-recirculation mode briefly,
e.g. if there are unpleasant outside odours
or when in atunnel. The windows could
otherwise mist up as no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com-
partment as well.T he indicator lamp above
the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off. Operating the climate control system
Switching climate control on/off
Points to observe before use i
If climate control is switched off, the air
supply and air circulation are also switched
off. Only use this settingf orab rief period.
The windows could otherwise mist up.
i Switch on climate control primarily using
the à button (Y page 128). Switching on/off X
Turn the key to position 2in the ignition
lock.
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previous settings are reactivated.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating the cooling
with air dehumidification function
Points to observe before use G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted.
Condensation may drip from the underside of
the vehicle when cooling mode is active. This
is normal and not asign that there is amal-
function.
i The cooling with air dehumidification
function uses refrigerant R134a. This
refrigerant does not contain chlorofluoro-
carbons, and therefore does not damage
the ozone layer. Operating the climate control system
127Climatecontrol Z

Switching on/off
X
To activate: press the¿button.
The indicator lamp in the ¿button lights
up.
X To deactivate: press the¿button.
The indicator lamp in the ¿button goes
out. The cooling with air dehumidification
function has adelayed switch-of ffeature.
Problems with the cooling with air
dehumidification function When you press the
¿button ,the indica-
tor lamp in the button flashes three times or
remains off. You can no longer switch on the
cooling with air dehumidification function.
X Visit aqualified specialist workshop. Setting climat
econtrol to automatic
mode
In automatic mode, the set temperature is
maintained automatically at aconstan tlevel.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If desired, cooling with air dehu-
midification can be deactivated.
X Turn the key to position 2in the ignition
lock.
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated.
i THERMOTRONIC automatic climate con-
trol: when automatic mode is activated, you
can select aclimate mode (Y page 128).X
To switch off: press the_button.
or
X Press the IorK button.
The indicator lamp in the Ãbutton goes
out. Setting the climat
emode
In automatic mode you can select the follow-
ing climate modes:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSEl ow airflow that is set slightly
warmer and with less of adraught
X Turn the key to position 2in the ignition
lock.
X Press the Ãbutton.
X Press the ñbutton repeatedly until the
desired climate mode appears in the dis-
play. Setting the temperature
THERMATIC automatic climate control Different temperatures can be set for the
driver's and front-passenge rsides.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce: turnc ontrol :or
B clockwise or anti-clockwise
(Y page 125).
Only change the temperature settin gin
small increments. Start at 22 †. 128
Operating thec
limate control systemClimate control

Rear windo
wheating
Switchin gon/off G
WARNING
Clea rall windows of ice or sno wbefor esetting
off .O therwise, impaire dvisibility could
endanger yo uand others.
Th er earw indow heatin ghasah igh current
draw. You should therefore switc hitoff as
soon as the window is clear .Itotherwise
switches off automaticall yafter several
minutes.
If the battery voltag eistoo low, the rea rwin-
dow heatin gmay switc hoff.
X Turn the key to position 2in the ignition
lock.
X Press the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
Problems with th erearw indow heating The rear window heatin
ghas switched off
prematurely or cannot be activated.
X Switch off any consumers that are not
required, e.g. readin glamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heatin gisactivate dagain
automatically. Activating/deactivating air-recircula-
tion mode G
WARNING
Only switc hover to air-recirculatio nmode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus impair-
ing visibility and endangering yourself and
others. This may prevent you from observing
the traffic conditions, thereby causing an
accident. You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
The operation of air-recirculation mode is the
same for all control panels.
X
Turn the key to position 2in the ignition
lock.
X To activate: press thegbutton.
The indicator lamp in the gbutton lights
up.
i In the event of high pollution levels 1
or at
high outside temperatures, air-recircula-
tion mode is automatically activated. When
air-recirculation mode is activated auto-
matically, the indicator lamp above the
g button does not light up.
Outside air is added after about
30 minutes.
X To deactivate: press thegbutton.
The indicator lamp in the gbutton goes
out.
i Air-recirculation mode deactivates auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5†
R after approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
R after approximately 30 minutes at out-
side temperatures above approximately
5† Convenience opening/closing using
the air-recirculation button
G
WARNING
Make sure that nobody can become trapped
between the side window and the door frame
as the side windows are opened and closed.
Make sure that all object sand body parts are
clear of the side windows when they are being
1 THERMOTRONIC automatic climate contro lonly. Operatin
gthe climate contro lsystem
131Climate control
Z

opened or closed. You or the object
scould be
drawn in or become trapped between the side
window and the door frame as the window
moves. If there is arisk of entrapment, oper-
ate the Wswitchtom ove the side window
in the opposit edirection.
Make sure that nobody can becom etrapped
as the slidin gsunroof/panorama slidin gsun-
roof is opened and closed. If there is arisk of
entrapment, operat ethe 3 switchtom ove
the slidin gsunroof/panorama slidin gsunroof
in the opposit edirection.
X Convenience closing feature: press and
hold the gbutton until the side win-
dows and the sliding sunroof/panorama
sliding sunroof are closed.
The indicator lamp in the gbutton lights
up. Air-recirculation mode is activated.
X Convenience opening feature: press and
hold the gbutton until the side win-
dows and the sliding sunroof/panorama
sliding sunroof are opened. The side win-
dows and the sliding sunroof/panorama
sliding sunroof move back to their original
position.
The indicator lamp in the gbutton goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the sliding
sunroof/panorama sliding sunroof man-
ually after closing the mwith the conveni-
enc eclosing feature, the ywill remain in this
position when opened using the conveni-
enc eopening feature. Activating/deactivating th
eresidual
heat function
The residual heat function is only available
with THERMOTRONI Cautomatic climate con-
trol.
It is possible to mak euse of the residual heat
of the engine to continue heatin gthe station-
ary vehicle for up to 30 minutes after the
engine has been switched off .The heating time depends on the temperature that has
been set for the vehicle interior.
X
To activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
i The blower will run at alow speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X To deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
i It is possible that the residual heat func-
tion may be activated automatically an hour
after the key has been removed. The vehi-
cle is then ventilated for 30minutes to dry
the air-conditioning system.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops Auxiliary heating
Important safety notes G
WARNING
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. agarage. G
WARNING
When operating the auxiliary heating parts of
the vehicle can get very hot. Make sure that
the exhaust system does not under any cir-
cumstances come into contact with easily
ignitable material such as dry grass or fuels.
The material could otherwise ignite and set 132
Operating the climate control systemClimatec
ontrol

sound of the engine may change during this
time.
Automatic transmission X
Shift the transmission to position P.
The transmission position displayint he
multifunction displays howsP.
i You can also start the engine when the
transmission is in position N.
Starting procedurew ith the keyi
To start the engine using the key instead
of KEYLESS-GO, pull the Start/Stop button
out of the ignition lock.
X To startap etrol engine: turn the key to
position 3in the ignition lock
(Y page 141) and release it as soon as the
engine is running.
X To startad iesel engine: turn the key to
position 2in the ignition lock
(Y page 141).
The % preglow indicator lamp in the
instrumen tcluster light sup.
X When the %erlischt, den Schlüssel auf
Stellung 3(Ypage 141 )and release it as
soon as the engine is running.
i You can start the engine without preglow
if the engine is warm.
Using KEYLESS-GO to start th eengine G
WARNING
Your vehicle can be started using avalid KEY-
LESS-GO key. For this reason ,children should
never be left unsupervised in the vehicle.
Always tak ethe key with you when leavin gthe
vehicle, even if you are only leavin gitfor a
shor ttime.
i The Start/Stop button can be used to
start the vehicle manually without inserting
the key int othe ignition lock .The key must
be in the vehicle and the Start/Stop button
must be inserted in the ignition lock. This mode for startingt
he engine operates inde-
pendently of the ECO start/stop automatic
engine start function.
X Depress the brake pedal and keep it
depressed.
X To startap etrol engine: pressthe Start/
Stop button (Y page 141) once.
The engine starts.
X To start adiesel engine: press the Start/
Stop button (Y page 141)once.
Preglow is activated and the engin estarts. Pulling away
Automatic transmission G
WARNING
If the engin espeed is above the idling speed
and you engage transmission position Dor
R,t he vehicle could pull away suddenly. There
is ar isk of an accident.
When engagin gtransmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
X Depress the brake pedal and keep it
depressed.
X Shif tthe transmission to position Dor R.
X Release the parking brake (Y page 160).
X Release the brake pedal.
X Carefully depress the accelerator pedal.
i It is only possible to shift the transmission
from position Pto the desired position if
you depress the brake pedal. Only then is
the parking lock released.
i The vehicle locks centrally once you have
pulleda way.The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic lock-
ing feature (Y page 225). Driving
143Driving and parking Z

Problems with the transmission
Problem Possible causes/consequences and
M Solutions
The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at aqualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least ten seconds before restarting the engine.
X Shift the transmission to position Dor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
X Have the transmission checked at aqualified specialist work-
shop immediately. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heating
before refuelling. G
WARNING
Avoid contact with fuels.
It is hazardous to your health if your skin
comes into direct contact with fuels or you
breathe in fuel vapours. G
WARNING
Do not use petrol to refuel adiesel tank.N ever
mix diesel with petrol. Doin gsocould damage
the fuel system and the engine. The vehicle
could also catc hfire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel vehicles with
apetrol engine. Even small
amounts of the wrong fuel result in damage
to the fuel system and the engine.
! Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
aq ualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use afilter when adding fuel from afuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 360). 156
RefuellingDriving and parking

These variable are not included in the ECO
display.
Your driving style is evaluated on the basis of
the following three categories:
Acceleration (evaluation of all accelera-
tion processes)
The bar fills up: The bar depletes:
Moderate accelera-
tion, espeically at
higher speeds Sport
yacceleration Constant (evaluation of the driving style
at any point in time) The bar fills up: The bar depletes:
Constan
tspeed and
avoidance of unnec-
essary acceleration
and deceleration
processes Fluctuations in
speed
Coasting (evaluation of tota
ldecelera-
tion) The bar fills up: The bar depletes:
Driv
ewith care,
keep your distance
from the vehicle
ahead and remove
your foot from the
accelerator pedal in
good time: the vehi-
cle can coast with-
out braking Frequen
tbraking i
An economical drivin gstyle depends in
particular on drivin gatmoderat espeeds.
Achieving ahigher value in the categories
"Acceleration "and "Constant":
R observe the gearshift recommendations.
R drive in drive program E.i
On long journeys at constan tspeed, such
as on the motorway, only the "Constant"
category bar changes.
i The ECO display sums up the driving
behaviour from the start to the end of the
journey. As aresult, the bars change
dynamically at the start of the journey. Dur-
ing long journeys ther eare fewer changes.
For more dynamic changes, perfor maman-
ualr eset.
For further informatio nonECO display, see
(Y page 213). Engine oil
! Vehicles with adiesel particle filter: if
the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur during the automatic cleaning of the
diesel particle filter. This may lead to fuel
collectin ginthe engin eoil and cause
engin efailure. Therefore, if you frequently
drive short distances, you should tak ea20
minut etriponam otorway or rural road at
least every 500km. Brakes
Important safet ynotes G
WARNING
If you shift down on aslippery road surfac ein
an attempt to increase the engine's braking
effect ,the drive wheels could lose their grip.
This increases the risk of skidding and having
an accident.
Do not shift down for additional engin ebrak-
ing on aslippery road surface.
Downhill gradients On long and steep downhill gradients, espe-
cially if the vehicle is laden, you must select
shift range
1,2or 3in good time. 162
Driving tipsDriving and parking