engine MERCEDES-BENZ CL COUPE 2009 Repair Manual

Information and warning display
:
Yellow indicator lamp/red warning lamp
When you turn the key to position 2in the
ignition lock, warning lamps :in the exterior
mirrors light up red.
If Blind Spot Assist is switched on and the
engine is running, indicator lamps :in the
exterior mirrors light up yellow up to a speed
of 30 km/h. At speeds above 30 km/h, the
indicator lamp goes out and Blind Spot Assist
is operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
30 km/h, warning lamp :on the corre-
sponding side lights up red.
The yellow indicator lamp goes out three sec-
onds after reverse gear is engaged. In this
event, Blind-Spot Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light. G
Risk of accident
Blind Spot Assist is not active at speeds below
30 km/h, and the indicator lamps in the exte-
rior mirrors are yellow. Vehicles in the moni-
toring range are then not indicated.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, could cause an
accident and injure yourself and others. Collision warning If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the turn
signal, a double warning tone sounds. Red
warning lamp
:flashes. If the turn signal
remains on, detected vehicles are indicated
by the flashing of red warning lamp :. There
are no further warning tones.
Activating X
Make sure that the radar sensor system
(Y page 226) and Blind Spot Assist
(Y page 224) are activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Red warning lamps :in the exterior mir-
rors are lit.
X Start the engine.
Warning lamps :in the exterior mirrors
now light up yellow. Air conditioning
General notes
The automatic air conditioning controls the
temperature and the humidity of the vehicle
interior and filters out undesirable substan-
ces from the air.
The automatic air conditioning is only opera-
tional when the engine is running. 31
Optimum
operation is only achieved when you drive
with the side windows and sliding/tilting sun-
roof closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 201).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
31 The "residual heat" function can only be switched on/off if the ignition is switched off. 262
Air conditioningCont
rols
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i
Instructions and recommendations for
optimum air conditioning:
R activate the air conditioning using the
à rocker switch. The indicator lamp
in the Ãrocker switch comes on.
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 out-
side odours or when in a tunnel. Other-
wise, the windows could mist up due to
a lack of fresh air.
R use the "residual heat" function if you
want to heat or ventilate the vehicle inte-
rior when the ignition is switched off. The
"residual heat" function can only be acti-
vated or deactivated with the ignition
switched off. Switching the air conditioning on/off
i When the air conditioning is switched off,
the air supply and air circulation are also
switched off. Only select this setting briefly,
otherwise the windows may mist up.
i Activate the air conditioning primarily
using the Ãrocker switch
(Y page 264).
X Turn the key to position 2in the ignition
lock.
X To activate: press theÇrocker switch
up or down.
The indicator lamp in the rocker switch
goes out. The previously selected settings
come into effect again.
X To deactivate: press theÇrocker
switch up or down.
The indicator lamp in the rocker switch
comes on. Switching cooling with air dehumidi-
fication on/off
The "cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected. G
Risk of accident
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.
Condensation may drip from the underside of
the vehicle when Thermatic is in cooling
mode.
You can activate or deactivate the "cooling
with air dehumidification" function via
COMAND (Y page 170). Controlling the air conditioning auto-
matically
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic air conditioning will achieve
optimal operation if "cooling with air dehu-
midification" is also activated. If necessary,
cooling with air dehumidification can be deac-
tivated.
X Turn the key to position 2in the ignition
lock.
X Set the desired temperature.
X To activate: press theÃrocker switch
up or down.
The indicator lamp in the Ãrocker
switch comes on. 264
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i
Air-recirculation mode switches off 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 G
Risk of injury
Make sure that nobody can become trapped
between the side window and the door frame
as the side windows are opened and closed.
Do not place objects or lean against the side
windows when they are being opened or
closed. You or the objects could be drawn in
or become trapped between the side window
and the door frame as the window moves. If
there is a risk of entrapment, press the
g rocker switch again. Press the button
for stopping, opening or closing the side win-
dows in the opposite direction as appropriate.
Make sure that nobody can become trapped
when you are opening or closing the sliding/
tilting sunroof. If there is a risk of entrapment,
press the grocker switch again. Press the
button to stop, open or close the panorama
sliding/tilting sunroof in the opposite direc-
tion as appropriate.
X Convenience closing: press and hold the
g rocker switch up or down until the
sliding/tilting sunroof and side windows
are closed.
The indicator lamp in the grocker
switch comes on. Air-recirculation mode is
activated.
X Convenience opening: press and hold the
g rocker switch up or down until the sliding/tilting sunroof and the side win-
dows have reached their original position.
The indicator lamp in the
grocker
switch goes out. Air-recirculation mode is
deactivated.
i If you open the side windows or the slid-
ing/tilting sunroof manually after closing
with the convenience closing feature, they
will remain in this position when opened
using the convenience opening feature. Switching the residual heat on/off
It is possible to make use of the residual heat
of the engine to continue heating the 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.
i The blower will run at a low 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 Turn the key to position 0in the ignition
lock or remove it.
X To activate: press theÇrocker switch
up or down.
The indicator lamp in the Çrocker
switch comes on.
X To deactivate: press theÇrocker
switch up or down.
The indicator lamp in the Çrocker
switch goes out.
i The residual heat automatically switches
off after around 30 minutes or if:
R the ignition is switched on
R the battery voltage drops Air conditioning
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Switching the auxiliary heating/ven-
tilation* on/off
Notes on the auxiliary heating/ventila-
tion system G
Risk of poisoning
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. a garage. G
Risk of fire
When operating the auxiliary heating, parts of
the vehicle may become very hot, and highly
inflammable material such as fuels could be
ignited. Operating the auxiliary heating is thus
prohibited at filling stations or when your vehi-
cle is being refuelled. You must therefore
switch off the auxiliary heating at filling sta-
tions.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature without
using the heat of the running engine. The aux-
iliary heating is operated using the vehicle's
fuel. For this reason, the tank content must
be at least at reserve fuel level to ensure that
the auxiliary heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature. Before activating X
Turn the key to position 2in the ignition
lock.
X Set the temperature.
The auxiliary heating/ventilation can be acti-
vated even when the air conditioning is being
controlled manually. Optimum comfort can
be attained when the system is set to auto-
matic mode. set the temperature to 22 †.
The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the rocker switch on the centre console.
You can use COMAND (Y page 172) or the
remote control to specify up to three depar-
ture times, one of which may be preselected.
Switching the auxiliary heating/venti-
lation on/off using the centre console
rocker switch The colours of the indicator lamps on the
rocker switch have the following meanings:
Blue Auxiliary ventilation activated
Red Auxiliary heating activated
Yellow Departure time preselected
(Ypage 172)
Switching on auxiliary heating/ventila-
tion
X Press &rocker switch :up or down.
The red or the blue indicator lamp in &
rocker switch :lights up. 270
Air conditioningControls
* optional
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A departure time has
been activated. The aux-
iliary ventilation is cur-
rently selected. The
departure time appears
in the display.
A departure time has
been activated. The aux-
iliary heating is currently
selected. The departure
time appears in the dis-
play.
Setting a departure time
X
Press the Xor Ybutton repeatedly until the
time to be changed appears in the display.
X Press the ONand OFF buttons simultane-
ously.
The Îsymbol in the remote control dis-
play flashes.
X Press the Xor Ybutton to set the desired
departure time.
i The longer you press the Xor Ybutton,
the faster the time changes.
X Press the ONand OFF buttons simultane-
ously.
The new departure time is stored.
Activating a set departure time
X Press the Xor Ybutton repeatedly until the
desired departure time appears in the dis-
play.
X Press the ONbutton.
The Ísymbol and the departure time
appear in the display. Deactivating a set departure time
X Press the Xor Ybutton.
The status of the auxiliary heating is shown
in the display.
X Press button Y.
The first departure time stored appears in
the display.
X Press the OFFbutton.
The display message OFFappears in the
display.
Activating/deactivating the heater
booster function* The heater booster function helps the engine
to reach its operating temperature faster dur-
ing its warm-up phase, as well as helping to
heat the vehicle interior faster. The heater
booster function switches on when outside
temperatures are low and the coolant tem-
perature is less than 70 †. You can also acti-
vate the heater booster manually.
i
The fuel tank must be filled up to the
reserve fuel level at least. Air conditioning
273Controls
* optional
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X
Start the engine.
X To switch on: briefly press&rocker
switch :up or down.
Red indicator lamp in &rocker
switch :lights up.
X To switch off: briefly press&rocker
switch :up or down.
Red indicator lamp in &rocker
switch :goes out. Sliding sunroof
General notes
G
Risk of injury
Make sure that nobody can become trapped
when closing the sliding sunroof. If there is a
risk of entrapment, release the switch and
push it briefly in any direction to stop the slid-
ing sunroof. G
Risk of injury
Children could injure themselves if they oper-
ate the sliding sunroof.
Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
a short time. G
Risk of injury
The glass in the panorama sunroof could
break in an accident. If you are not wearing a
seat belt, there is a risk that you could be
thrown through the opening in the event of the
vehicle overturning. Therefore, always wear a
seat belt to reduce the risk of injuries.
! Only open the panorama sliding sunroof
if it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding sunroof. The seals could otherwise
be damaged. i
When the sliding sunroof is open, apart
from the normal airflow noises resonance
noises may also occur. They are caused by
minor pressure fluctuations in the vehicle
interior. Change the position of the sliding
sunroof or open a side window slightly to
reduce or eliminate these noises.
i Related topics:
R convenience opening from the out-
side (Y page 201) or from the inside
(Y page 269)
R convenience closing from the out-
side (Y page 201) or from the inside
(Y page 269)
R automatic closing of the sliding sunroof
(PRE-SAFE) (Y page 42) Sliding/tilting sunroof
Overhead control panel
:
To open
; To close/lower
= To raise
X Turn the key to position 1or 2in the ignition
lock.
X Pull or push the switch in the corresponding
direction.
i If you press the switch beyond the point
of resistance, an automatic opening/clos-
ing process is started in the corresponding
direction. You can stop automatic opera-
tion by pressing again. 274
Sliding sunroofControls
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Running-in notes
............................... 290
Refuelling ........................................... 290
Engine compartment ........................292
Tyres and wheels .............................. 296
Winter driving ................................... 302
Driving tips ........................................ 304
Driving abroad ................................... 306
Service ............................................... 306
Care .................................................... 307 289Operation
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Running-in notes
The first 1,500 km
G
Risk of accident
New brake pads/linings only have optimal
braking performance after several hundred
kilometres. Until then, compensate for this by
applying greater force to the brake pedal. This
also applies when brake pads/linings or
brake discs have been changed.
If you treat the engine with sufficient care
from the very start, you will be rewarded with
excellent performance for the remainder of
the engine's life.
R Therefore, you should drive at varying road
and engine speeds for the first 1,500 km.
R Avoid heavy loads, e.g. driving at full throt-
tle, during this time. Do not exceed 2
/ 3 of
the maximum permissible engine speed for
each gear.
R Change gear in good time.
R Do not shift down a gear manually in order
to brake.
R try to avoid depressing the accelerator
pedal beyond the pressure point (kick-
down).
R only use ranges 3,2or 1for slow driving,
e.g. in mountainous terrain.
After 1,500 km, you may gradually bring the
vehicle up to full road and engine speeds.
Additional notes on running in AMG vehicles:
R do not drive faster than 140 km/h for the
first 1,500 km.
R only bring the engine up to a maximum
speed of 4,500 rpm for a brief period.
i You should also observe these notes on
running in if the engine or the axle gear on
your vehicle have been replaced. Refuelling
Refuelling
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Before refuelling, turn off the engine and the
auxiliary heating *. G
Risk of injury
Avoid any contact with fuels.
You can damage your health if your skin
comes into direct contact with fuel or if you
inhale fuel vapours.
! Do not use diesel to refuel vehicles with a
petrol engine. Even a small quantity of die-
sel will damage the injection system. Dam-
age caused by using diesel to refuel vehi-
cles with a petrol engine or mixing petrol
with diesel is not covered by the warranty.
! Do not start the engine if you accidentally
refuel with the wrong fuel. Otherwise, the
fuel could enter the fuel lines. This would
require draining of the fuel tank and fuel
lines. Notify a qualified specialist workshop
and have the fuel tank and fuel lines
drained completely.
When you open or close the vehicle with the
key or KEYLESS GO*, the fuel filler flap is
automatically unlocked or locked.
The position of the fuel filler cap is to the rear
on the right. The position of the fuel filler cap
is displayed in the instrument cluster 8.290
RefuellingOperation
* optional
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The arrow next to the filling pump indicates
the side of the vehicle.
:
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type
X To open: press the fuel filler flap in the
direction of arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap.
X Turn the fuel filler cap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap ;.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system.
X To close: replace the fuel filler cap and turn
it clockwise. The fuel filler cap audibly
engages.
X Close the fuel filler flap. Petrol (EN 228)
! Refuel using only unleaded, sulphur-free
premium grade petrol with a minimum
octane number of 95 RON/85 MON con-
forming to European standard EN 228.
Otherwise, you could impair engine output
or damage the engine. i
As a temporary measure, only when the
recommended fuel is not available, you
may also use regular unleaded petrol,
91 RON/82.5 MON. This may reduce
engine performance and increase fuel con-
sumption. Avoid driving at full throttle.
In some countries, the quality of the avail-
able petrol may not be adequate and could
cause coking around the inlet valve. In such
cases, and in consultation with a
Mercedes-Benz Service Centre, the petrol
may be mixed with the additive recommen-
ded by Mercedes-Benz (part no.
A000989254510). You must observe the
notes and mixing ratios specified on the
container.
Further information on "Fuel" .
AMG vehicles and twelve-cylinder
engines !
Refuel using only unleaded Super Plus
with a minimum octane number of
98 RON/88 MON conforming to European
standard EN 228.
Otherwise, you could impair engine output
or damage the engine.
i If the recommended fuel is not available
and only as a temporary measure, you may
also use premium unleaded petrol,
95 RON/85 MON. This may reduce engine
performance and increase fuel consump-
tion. You must avoid driving at full throttle.
! In emergencies, and only when the rec-
ommended fuel is not available, you may
also use standard unleaded petrol,
91 RON/82.5 MON.
However, using this fuel results in consid-
erably higher petrol consumption and sig-
nificantly reduced performance. Avoid driv-
ing at full throttle, and only drive in drive
program C.
If no fuel other than regular petrol 91 RON/
82.5 MON or a lower grade is permanently
available, you should have the vehicle Refuelling
291Operation
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adapted to run on this fuel by the local
after-sales service.
Engine compartment
Bonnet
G
Risk of accident
Do not pull the release lever while the vehicle
is in motion. If you do so, the bonnet may open
up and block your view.
Opening G
Risk of injury
There is a risk of injury if the bonnet is open,
even if the engine is not running.
Some engine components can become very
hot.
To avoid the risk of burns, only touch those
components described in the Owner’s Manual
and observe the relevant safety notes. G
Risk of injury
The radiator fan between the radiator and the
engine can start automatically, even if the key
has been removed from the ignition lock. For
this reason, you must not reach into the fan
rotation area. Otherwise, you could be
injured.
The electronic ignition system uses high volt-
age. For this reason, you must never touch
components of the ignition system (ignition
coil, ignition cable, spark plug connector or
test socket) when:
R the engine is running.
R the engine is being started.
R the ignition is switched on and the engine
is being cranked by hand.
X Make sure that the windscreen wipers are
switched off. G
Risk of injury
The windscreen wipers and wiper linkage
could be set in motion.
When the bonnet is open, you or others could
be injured by the wiper rods.
Make sure that the windscreen wiper is
switched off. Remove the key or make sure
that no ignition level has been selected on
KEYLESS GO*. In the instrument cluster, all of
the indicator lamps must be out.
The bonnet release lever is located in the
driver's footwell. X
Pull bonnet release lever :.
The bonnet is released.
! Make sure that the windscreen wipers
are not folded away from the windscreen.
Otherwise, you could damage the wind-
screen wipers or the bonnet.
The handle for opening the bonnet is located
above the radiator grille. 292
Engine compartmentOperation
* optional
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