display MERCEDES-BENZ CLS COUPE 2012 Owner's Guide

THERMOTRONI
Cautomatic climate
control THERMOTRONIC automatic climate control zones
Yo uc an select different temperatur esettings
for the driver's and front-passenge rsides as
well as for the rear compartment.
X Turn the key to position 2in the ignition
lock.
X To increase/reduce th etemperatur ein
th ef ront: turnc ontrols :and Bclock-
wise or anti-clockwise (Y page 126).
Only change the temperature settin gin
small increments. Start at 22 †.
X To increase/reduce th etemperatur ein
th er earc ompartment using th efront
control panel: press theábutton.
The indicator lamp in the ábutton goes
out.
X Turn control :clockwise or anti-clockwise
(Y page 126).
Only change the temperature settin gin
small increments. Start at 22 †.
The temperature settin gfor the driver's
side is adopted for the rear compartment
and the front-passenger side.
X To increase/reduce th etemperatur ein
th er earc ompartment using th erear
control panel: press therors
button on the rear control panel.
Only change the temperature settin gin
small increments. Start at 22 †. Setting th
eair distribution
Air distribution settings P
Directsthe airflow through the centre
and side air vents
O Directsthe airflow through the foot-
well air vents
S Directsthe airflow through the centre
and side air vents as well as the foot-
well air vents
¯ Directsthe airflow through the demis-
ter vents
b Directsthe airflow through the demis-
ter ,centr eand side air vents (only for
certain countries).
a Directsthe airflow through the foot-
well and demister vents
_ Directsthe airflow through the demis-
ter vents ,the centr eand side ai rvents
as well as the footwell air vents
i Regardless of the air distribution setting,
airflow is alway sdirected through the side
air vents. The side air vent scan only be
closed when the controls on the side air
vent sare turned downwards.
Adjusting X
Turn the key to position 2in the ignition
lock.
X Press the _button repeatedly until the
desired symbol appears in the display. Setting the airflow
Adjusting X
Turn the key to position 2in the ignition
lock.
X To increase: press theKbutton.
X To reduce: press theIbutton.
i You can use THERMOTRONIC automatic
climate control to set the airflow in the rear
compartment separately. Operating thec
limatecontrol system
129Climatecontrol Z

The remote control has
amaximum range of
approximately 300 metres. This range is
reduced by:
R sources of radio interference
R solid object sbetween the remote control
and the vehicle
R the remote control being in an unfavoura-
ble position in relation to the vehicle
R transmitting from an enclosed space
i The optimum range can be achieved if you
hold the remote control vertically, pointing
upwards when you press one of the but-
tons.
i Abattery symbol appear sinthedisplay
when th ebattery in th eremot econtro lis
low. Replac ethe remot econtro lbattery
(Y page 135).
Switching th eauxiliary heating/ventila-
tion on/off Auxiliary heating remot
econtrol
: Display
; . To check th estatus/set th edepar-
tur etime
= ^ To switch off th eauxiliary heating/
ventilation
? u To switch on th eauxiliary heating/
ventilation
A , To check th estatus/set th edepar-
tur etime X
To switch on: pressthe u button.
ON is shown in th
eremot econtro ldisplay.
X To deactivate: pressthe ^ button.
OFF is shown in th
eremot econtro ldisplay.
Checking th estatus of the auxiliary heat-
ing/ventilation
X Press the ,or. button.
The following message smayappear in the
display: Display Meaning
The auxiliary heating/
ventilatio
nisswitched
off. The auxiliary ventilation
is switched on. The num-
ber in the displays
hows
the remaining time (in
minutes) for the auxiliary
ventilation. The auxiliary heating is
switched on. The number
in the displays
hows the
remaining time (in
minutes) for the auxiliary
heating. Ad
eparture time has
been activated. The
departure time appears
in the display. Ad
eparture time has
been activated. The aux-
iliary ventilation is cur-
rently selected. The
departure time appears
in the display. Ad
eparture time has
been activated. The aux-
iliary heating is currently
selected. The departure
time appears in the dis-
play. 134
Operating thec
limatecontrol systemClimatecontrol

Setting the departuret
ime
X Press the ,or. button repeatedly
until the time to be changed appears in the
display.
X Press the uand^ buttons simulta-
neously.
The Îsymbol in the remote control dis-
play flashes.
X Press the ,or. button to set the
desired departure time.
i The longer you press the ,or.
button, the faster the time changes.
X Press the uand^ buttons simulta-
neously.
The new departure time is stored.
Activating the set departuret ime
X Press the ,or. button repeatedly
until the desired departure time appears in
the display.
X Press the ubutton.
The Ísymbol and the departure time
appearint he display.
Deactivating aset departuret ime
X Press the ,or. button.
The status of the auxiliary heating is shown
in the display.
X Press the .button.
The first departure time stored appears in
the display.
X Press the ^button.
The displaym essageOFF appears in the
display.
Replacing the remote control battery G
WARNING
Batteries contain poisonous substances.
Swallowing/ingesting batteries can result in
serious personal injury or death.
Always keep batteries away from children. If
ab attery is swallowed, seek immediate med-
ical attention. H
Environmental note Batteries contain pollutants.
It is illegaltod
ispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to aqualified spe-
cialist workshop or to acol-
lection point for used batter-
ies. One
6Vp in battery, type 2CR11108 is
required.
X Prise apart the side arms of battery
cover ;and pull off battery cover ;.
X Remove old battery :.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover ;back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. Operating the climate control system
135Climatecontrol Z

Problems with the auxiliary heating/ventilation
Display messages Possible causes/consequences and
M Solutions
FAIL The starter battery is not charged sufficiently or the system is
faulty.
X
Charge the starter battery.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at aqualified specialist
workshop. $
FAIL The signal transmission between the transmitter and the vehicle
is faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control. ©
FAIL There is not enough fuel in the fuel tank,ort
he auxiliary heating
is faulty.
X Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at aqualified specialist
workshop. Adjusting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbit eto
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
outlets. If necessary, direct the airflow away
to ad ifferent area of the vehicle interior. In order to ensure the direct flow of fresh air
through the air ventsi
nto the vehicle interior,
please observe the following notes:
R keep the air inlet between the windscreen
and the bonnet free of blockages, such as
ice, snow or leaves.
R never cover the ventsorv entilation grilles
in the vehicle interior. 136
Adjusting the air ventsClimate control

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

i
Upshifts take place at higher engine
speeds after acold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill start assist G
WARNING
After ashort time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is arisk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal.N ever
leave the vehicle when it is held by hill start
assist.
Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient.
It holds the vehicle for ashort time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and depress it before the vehicle begins to
roll.
X Take your foot off the brake pedal.
The vehicle is then held for about asecond.
X Pull away.
Hill start assist will not function if:
R you are pulling away on alevel road or a
downhill gradient.
R the transmission is in position N.
R the parking brake is applied.
R ESP ®
is malfunctioning. ECO start/stop function
Important safety notes G
WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is arisk of acciden tand injury. If you wish to exit the vehicle, alway
sturn off
the ignition and secure the vehicle against
rolling away.
General notes The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving.
When pulling away again, the engine starts
automatically. The ECO start/stop function
thereby helps you to reduce the fuel con-
sumption and emissions of your vehicle.
Ever
ytime you switch on the engine using the
key or the Start/Stop button ,the ECO start/
stop function is activated.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
The system is operational when ECO symbol
¤ is shown in green in the multifunction
display.
AMG vehicles: the AMG menu in the multi-
function display additionally shows the Stop/ Start active message.
If conditions for automatic engine switch-off
have not been fulfilled (Y page 145), the
¤ symbol will be shown in yellow.
AMG vehicles: the AMG menu in the multi-
function display additionally shows the Stop/ Start inactive message.
If the ECO start/stop function has been man-
ually deactivated (Y page 145)oramalfunc-
tion has caused the system to be deactivated,
the ¤ symbol is not displayed.
AMG vehicles: in the AMG menu on the mul-
tifunction display, the Stop/Start active or
Stop/Start inactive display message
disappears.
If the engine is switched off and the ¤
symbol is shown in green in the multifunction
display, the engine has been switched off
automatically. However, all vehicle systems
remain active. 144
DrivingDriving and parking

Deactivating/activating th
eECO start/
stop function EC
Ob utton
X To switch off (except AMG vehicles):
press button :.
Indicator lamp ;on button :and the
¤ symbol in th emultifunction display go
out.
X To switch on (except AMG vehicles):
press button :.
Indicator lamp ;lights up. If all conditions
fo ra utomatic engin eswitch-off
(Y page 145) are fulfilled, the ¤symbol
is shown in green in th emultifunction dis-
play.
If no tall condition sfor automatic engine
switch-off (Y page 145) are fulfilled, the
¤ symbol is shown in yellow in th emul-
tifunction display. If this is th ecase, the
ECO start/sto pfunction is no tavailable.
X To switch off (AMG vehicles): press but-
ton :in drive program C.
or
X Switch to drive program S,S+ orM
(Y page1 52).
Indicator lamp ;on button :and the
¤ symbol in the multifunction display go
out.
The Stop/Start active or
Stop/Start inactive message in the AMG menu in the
multifunction display goes out. X
To switch on (AMG vehicles): press but-
ton :.
Indicator lamp ;lights up. If drive pro-
gram S,S+ orMis active, the automatic
transmission switches to drive program C.
If all conditions for automatic engine
switch-off (Y page145) are fulfilled, the
¤ symbol is show ningreen in the mul-
tifunction display.Ina ddition,the Stop/ Start active message is shown in the
AMG menu in the multifunction display.
If condition sfor automatic engin eswitch-
off have not been fulfilled, the (Y page 145)
¤ symbol will be shown in yellow. If this
is the case, the ECO start/stop function is
not available. In addition, the Stop/Start inactive message is shown in the AMG
menu in the multifunction display.
i If indicator lamp ;is off, the ECO start/
stop function has been deactivated man-
ually or as the result of amalfunction .The
engine will then not be switched off auto-
matically when the vehicle stops.
i Every time you switch on the engine using
the key or the Start/Stop button, the ECO
start/stop function is activated.
Automatic engine switch-off Method of operation
If the vehicle is braked to
astandstill in Dor
N,t he ECO start/stop function switches off
the engine automatically.
The ECO start/stop function is operational
and the ¤symbol is displayed in green in
the multifunction display, if:
R the indicator lamp in the ECO button is lit
green.
R the vehicle is stationary.
R the outside temperature is within the com-
fort range.
R the engine is at normal operating temper-
ature. Driving
145Driving and parking Z

R
the se ttemperature for the vehicle interior
has been reached.
R the batter yissufficiently charged.
R the system detects that the windscreen is
not misted up when the air-conditioning
system is switched on.
R the bonnet is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If conditions for automatic engin eswitch-off
have not been fulfilled, the ¤symbol will
be shown in yellow.
AMG vehicles: the AMG menu in the multi-
function display additionally shows the Stop/Start inactive message.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again oncet he¤ symbol reappears in
green in the multifunction display.
i All vehicles (except AMG vehicles):
automatic engin eswitch-off can take place
am aximum of four times consecutively (ini-
tial stop and three subsequent stops). The
¤ symbol is shown in yellow in the mul-
tifunction display after the engin ehas been
started automatically for the fourt htime.
The automatic engin eswitch-off is availa-
ble oncea gain when the ¤symbol is
shown in green in the multifunction display.
i AMG vehicles: times which the engine
can be automatically switched off.
i You can also activat ethe HOLD function
when the vehicle is stationary if the engine
has been switched off automatically. It is
then not necessary to continue applying
the brakes during the automatic stop
phase. When you depress the accelerator
pedal, the engin estart sautomatically and
the brakin geffec toft he HOLD function is
deactivated. Depress the accelerator pedal
gently, as the engin emust be started first.
i Durin gautomatic engin eswitch-off ,the
climate control system only operates at a
reduced capacity. If you require full climate control capacity, the ECO start/stop func-
tion can be deactivated by pressing the
ECO button (Y
page 145).
Automatic engine start The engin
eisstarted automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R you release the brakes when in transmis-
sion position Dor N,w hen the HOLD func-
tion is not active.
R you depress the accelerator pedal.
R you engage revers egear R.
R you move the transmission out of position
P.
R you switch to drive program S,S+ orM
(AMG vehicles).
R you unfasten your seat belt or open the
driver's door.
R the vehicle start storoll.
R the brake system requires this.
R the temperature in the vehicle interior devi-
ates from the set range.
R the system detects moisture on the wind-
screen when the air-conditionin gsystem is
switched on.
R the battery's charge status is too low.
i Shifting the transmission to position P
does not start the engine. 146
DrivingDriving and parking

Problems with the engine
Problem Possible causes/consequences and
M Solutions
The engine does not
start. The HOLD function or DISTRONIC PLUS is activated.
X
Deactivat ethe HOLD function (Y page 179) or DISTRONIC
PLUS (Y page 177).
X Try to start the engine again. The engine does not
start. The starter motor
can be heard. R
There is amalfunction in the engine electronics.
R There is amalfunction in the fuel supply.
X Before attempting to start the engine again, turn the key in the
ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrumen tcluster go
out.
X Try to start the engine again (Y page 142). Avoid excessively
long and frequent attempt stostart the engine, as this will drain
the battery.
If the engine does not start after several attempts:
X Consult aqualified specialist workshop. The engine does not
start
.The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge displays hows0. The fuel tank is empty.
X
Refuel the vehicle. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-start the vehicle (Y page 319).
If the engine does not start despite attemptstoj ump-start it:
X Consult aqualified specialist workshop. The starter motor was exposed to
athermal load that was too high.
X Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult aqualified specialist workshop. Driving
147Driving and parking Z

Problem Possible causes/consequences and
M Solutions
Vehicles with
apetrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is
amalfunction in the engine electronics or in amechanical
componentoft he engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at aqualified specialist
workshop. The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be lit and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 299). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Automatic transmission
Important safety notes
G
WARNING
If the engine speed 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 engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate. Selector lever
Overview of transmission positions Selector lever in AMG vehicles with
Pbutton
j Park position with parking lock
k Reverse gear
i Neutral
h Drive 148
Automatic transmissionDriving and parking