2012 MERCEDES-BENZ CLS COUPE ECO mode

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

i
This also applies if you have activated
cruise control, SPEEDTRONIC or DIS-
TRONIC PLUS.
This will use the braking effect of the engine,
so less braking will be required to prevent the
vehicle from gaining speed. This relieves the
load on the brake system and prevent sthe
brakes from overheatin gand wearing too
quickly.
Heavy and light loads G
WARNING
The braking system can overheat if you leave
your foot on the brake pedal while driving.
This increases the braking distanc eand could
even cause the braking system to fail. There
is ar isk of an accident.
Never use the brake pedal as afootrest. Do
not simultaneously depress both the brake
pedal and the accelerator pedal while driving.
! Depressin gthe brake pedal constantly
results in excessiv eand premature wear to
the brake pads.
If the brakes have been subjected to aheavy
load, do not stop the vehicle immediately, but
drive on for ashort while. This allows the air-
flow to cool the brakes more quickly.
If the brakes have been used only moderately,
you should occasionally test their effective-
ness. To do this, brake more firmly from a
higher speed. This improves the grip of the
brakes.
Wet road surfaces If you have driven for
along time in heavy rain
without braking, there may be adelayedr eac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain agreater distanc efrom the
vehicle in front.
After driving on awet road or having the vehi-
cle washed, brake firmly while paying atten- tion to the traffic conditions. This will warm
up the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads,
alayer of salt
residue may form on the brake discs and
brake pads. This can result in asignificantly
longer braking distance.
R Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginnin gand end of ajourney.
R Maintain agreater distance to the vehicle
ahead.
New brake pads/linings New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometres of driving. Compen-
sate for this by applying greater force to the
brake pedal.
For safety reasons, Mercedes-Benz recom-
mends that you only have brake pads/linings
fitted to your vehicle which have been
approved for Mercedes-Benz vehicles or
which correspon dtoanequivalent quality
standard. Brake pads/linings which have not
been approved for Mercedes-Benz vehicles or
which are not of an equivalent quality could
affect your vehicle's operating safety.
AMG high-performance and ceramic
brakes The AMG brake systems are designed for
heavy loads. This may lead to noise when
braking. This is dependent on:
R
speed
R braking force
R environmental conditions, such as temper-
ature and humidity Driving tips
163Driving and parking Z

Deactivating th
eHOLDf unction G
WARNING
Never get out of th evehicle when th eHOLD
function is activated.
The HOLD function mus tnever be operated
or deactivated by apassenger or from outside
th ev ehicle.
The HOLD function doe snot replac ethe park-
ing brake and must not be used for parking.
The braking effec tofthe HOLD function is
cancelled and the vehicle could roll away if:
R the HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal.
R there is amalfunction in the system or an
interruption in the power supply, e.g. bat-
tery failure.
R the electrical system in the engine com-
partment, the batter yorthe fuses are tam-
pered with.
R the batter yisdisconnected.
If you leave the vehicle or park it, deactivate
the HOLD function and secure the vehicle
against rolling away.
The HOLD function is deactivated automati-
cally if:
R you accelerat eand the transmission is in
position Dor R.
R you shift the transmission to position P.
R you depress the brake pedal again with a
certain amount of pressure until ëdis-
appears from the multifunction display.
R you activat eDISTRONIC PLUS.
When the HOLD function is activated, the
transmission is shifted automatically to posi-
tion Pif:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
R the bonnet is opened. R
as ystem fault occurs.
R the power supply is not sufficient. RACE START
Important safety notes G
WARNING
RACE START is only available when SPORT
handling mode is activated. SPORT handling
mode will only be able to stabilise the vehicle
to alimited degree if the vehicle start stoskid
or aw heel start stospin. The vehicle is there-
fore harder to control at the threshold range.
You could lose control of the vehicle and
cause an accident.
RACE START should only be used on closed
off circuits. Always adapt your driving style to
suit the prevailing road and weather condi-
tions.
i RACE START is only available in AMG vehi-
cles.
RACE START enables optimum acceleration
from astanding start .The precondition for
this is asuitable high-grip road surface.
Activation conditions You can activat
eRACE START if:
R the doors are closed.
R the engine is running and it has reached an
operatin gtemperature of approximately
80 †. This is the case when the engine oil
temperature in the multifunction display
stops flashing.
R SPORT handling mode is activated
(Y page 66).
R the steerin gwheel is in the straight-ahead
position.
R the vehicle is stationary and the brake
pedal is depressed (left foot).
R the transmission is in position D.180
Driving systemsDriving and parking

Activating RACE START
X
Depress th ebrak epedal wit hyour left foot
and keep it depressed.
X Turn the drive program selector clockwise
(Y page 151) until the RSlamp lights up.
The RACE START Confirm: Paddle UP Cancel: Paddle DOWN message appears
in the multifunction display.
i If the activation conditions are no longer
fulfilled, RACE START is cancelled. The
RACE START cancelled message
appears in the multifunction display.
X To cancel: pull the left steerin gwheel shift
paddle (Y page 152).
or
X To confirm: pull the right steerin gwheel
shift paddle (Y page 152).
The RACE START available Depress accelerator message appears in the mul-
tifunction display.
i If you do not depress the accelerator
pedal fully within two seconds, RACE
START is cancelled. The RACE START not
possible See Owner's Manual message
appears in the multifunction display.
X Fully depress the accelerator pedal.
The engine speed rises to approximately
3500 rpm.
The RACE START Release brake to start message appears in the multifunc-
tion display.
i If you do not release the brake pedal
within five seconds, RACE START is cancel-
led. The RACE START cancelled mes-
sage appears in the multifunction display.
X Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accel-
eration.
The RACE START active message appears
in the multifunction display.
RACE START is deactivated when the vehicle
reaches aspeed of approximately 50 km/h. Drive program
S+is activated. SPORT han-
dling mode remains activated.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation condi-
tions are no longer fulfilled. The RACE START
not possible See Owner's Manual mes-
sage appears in the multifunction display.
i After using it several times in short suc-
cession, RACE START will be unavailable
until acertain distance has been driven. AIRMATIC
Vehicle level Important safety notes
G
WARNING
If you have selected "Comfort tuning", the
vehicle will be lowered if you lock it within
60 seconds of the engine being switched off.
Make sure, therefore, that nobody is in the
vicinit yofthe wheel housing or under the
vehicle when you lock the vehicle. Otherwise,
limbs could become trapped.
! The vehicle is lowered by about 15 mm if:
R you have selected "Comfort tuning"
R you switch off the engine and
R you lock the vehicle within approximately
60 seconds
When parking, position your vehicle so that
it does not make contact with the kerb as
the vehicle is lowered. Your vehicle could
otherwise be damaged.
Your vehicle regulates its height automati-
cally. All-round level control ensures the best
possible suspension and constant ground
clearance, even with aladen vehicle. When
you drive fast, the vehicle is lowered auto-
matically to improve driving safety and to
reduce fuel consumption. Driving systems
181Driving and parking Z

Select this mod
ewhene mploying asporty
driving style ,e.g. on winding country roads.
X Press button :once.
Indicato rlamp ?light sup. You have selec-
te dS port mode.
The AMG Rid eContro lSPORT message
appear sinthemultifunction display.
Sport +mode
The ver yfirms etting of the suspension tuning
in Sport +mode ensures the best possible
contact with the road. Select this mode only
when driving on race circuits.
If indicator lamps =and ?are off:
X Press button :twice.
Indicator lamps =and ?light up. You
have selected Sport +mode.
The AMG Ride Control SPORT + message
appears in the multifunction display.
If indicator lamp ?lights up:
X Press button :once.
Secondi ndicator lamp =lights up. You
have selected Sport +mode.
The AMG Ride Control SPORT + message
appears in the multifunction display.
Comfort mode
In comfor tmode, the driving characteristics
of your vehicle are more comfortable. There-
fore, select this mode if you prefer amore
comfortable driving style. Select comfort
mode also when driving fast on straight roads,
e.g. on straight stretches of motorway.
X Press button :repeatedly until indicator
lamps =and ?go out.
You have selected Comfort mode.
The AMG Ride Control COMFORT mes-
sage appears in the multifunction display.
Storing and calling up settings
Once the suspension tuning and drive pro-
gram have been selected, you can store and
call up your settings using AMG button ;.X
To store: press AMG button ;until you
hear atone.
X To call up: press AMG button ;.
The stored suspension tuninga nd drive
program are selected.
X To display: briefly press AMG button ;.
Your selection appears in the multifunction
display. 4MATIC (permanent all-wheel drive)
G
WARNING
4MATIC cannot reduce the risk of an accident
if you drive too fast.
If ad rive wheel spins due to insufficien tgrip:
R only depress the accelerator peda lasfar as
necessary when pulling away.
R accelerate less when driving.
R adapt yourd riving style to suitr oad and
traffic conditions.
! Never tow the vehicle with one axle
raised. This may damage the transfer case.
Damage of this sort is not covered by the
Mercedes-Benz implied warranty. All
wheels must remain either on the ground
or be fully raised. Observe the instructions
for towing the vehicle with all wheels in full
contact with the ground.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if
you use winter tyres (M+ Styres), wit hsnow
chain sifnecessary.
4MATIC ensures that all four wheels are per-
manentl ydriven .Together wit hESP®
,it
improves th etraction of your vehicl ewhen-
eve rad rive wheel spins due to insufficient
grip. 184
Driving systemsDriving and parking