engine MERCEDES-BENZ CL COUPE 2009 Workshop Manual

tional braking, depress the brake pedal
repeatedly rather than continuously.
G
Risk of accident
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
You can set a variable or permanent limit
speed:
R variable for speed limits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
(Y page 245) G
Risk of accident
Speedtronic is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time.
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic With the cruise control lever, you can operate
cruise control or Distronic*/Distronic Plus*
and variable Speedtronic.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off:
Cruise control or Distronic*/Distronic
Plus* is selected.
R LIM indicator lamp lit: Variable Speedtronic is selected.
You can use the cruise control lever to limit
the speed to any speed above 30 km/h while
the engine is running. :
To store the current speed or a higher
speed
; LIM indicator lamp
= To store the current speed or to call up
the last stored speed
? To store the current speed or a lower
speed
A To switch between cruise control or Dis-
tronic*/Distronic Plus* and variable
Speedtronic
B To deactivate variable Speedtronic
Selecting variable Speedtronic X
Check whether LIM indicator lamp ;is on.
If it is on, variable Speedtronic is already
selected.
If it is not, press the cruise control lever in
the direction of arrow A.
LIM indicator lamp ;in the cruise control
lever lights up. Variable Speedtronic is
selected. G
Risk of accident
If there is a change of drivers, advise the new
driver of the limit speed stored.
Only use Speedtronic when you do not have
to accelerate suddenly to a speed higher than
the stored limit speed allows. You could, oth-
erwise, cause an accident. Driving systems
243Controls
* optional
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 243 Z
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:01; WK

You can only exceed the limit speed stored if
you deactivate variable Speedtronic:
R using the cruise control lever
R by depressing the accelerator pedal
beyond the pressure point (kickdown)
It is not possible to deactivate variable Speed-
tronic by braking. G
Risk of injury
Variable Speedtronic brakes automatically in
order to avoid exceeding the set speed. As it
does so, the brake pedal is depressed. Do not
place your foot under the brake pedal as it
could become trapped.
Storing the current speed You can use the cruise control lever to limit
the speed to any speed above 30 km/h while
the engine is running.
X Briefly press the cruise control lever
up : or down ?to the pressure point.
The current speed is stored and shown in
the multi-function display.
The speedometer dial lights up between
the start of the scale and the stored speed.
Storing the current speed or calling up
the last stored speed G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current driving and traffic situation. Other-
wise, sudden braking could endanger you or
others.
X Briefly pull the cruise control lever towards
you =. Making adjustments in 1 km/h incre-
ments X
Briefly press the cruise control lever to the
pressure point, up :for a higher speed or
down ?for a lower speed.
or
X Keep the cruise control lever pressed to the
pressure point until the desired speed is
set. Press the cruise control lever, up :
for a higher speed or down ?for a lower
speed.
Making adjustments in 10 km/h incre-
ments X
Briefly press the cruise control lever
beyond the pressure point, up :for a
higher speed or down ?for a lower speed.
or
X Keep the cruise control lever pressed
beyond the pressure point until the desired
speed is set. Press the cruise control lever,
up : for a higher speed or down ?for a
lower speed.
Deactivating variable Speedtronic There are several ways to deactivate variable
Speedtronic:
X
Briefly press the cruise control lever for-
wards B.
or
X Briefly press the cruise control lever in the
direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Variable Speedtronic is
deactivated.
Cruise control or Distronic*/Distronic
Plus* is selected.
Variable Speedtronic is deactivated automat-
ically when you depress the accelerator pedal
beyond the pressure point (kickdown), but
only if your current speed does not differ by 244
Driving systemsControls
* optional
216_AKB; 2; 3, en-GB
bjanott
,V ersion: 2.11.7.7
2009-02-27T14:54:17+01:00 - Seite 244
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:01; WK

more than 20 km/h from the stored speed.
You will hear a warning tone if this is the case.
G
Risk of accident
It is not possible to deactivate variable Speed-
tronic by braking.
i The last speed stored is cleared when you
switch off the engine.
Permanent Speedtronic i
Permanent Speedtronic is only available
in certain countries.
You can use the on-board computer to limit
the speed permanently to a value between
160 km/h (e.g. for driving with winter tyres)
and the maximum speed.
Just before the stored speed is reached, it
appears in the multi-function display.
Permanent Speedtronic remains active, even
if variable Speedtronic is deactivated.
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown).
Setting permanent Speedtronic
X Press the =or; button to select the
Settings menu.
X Press the :or9 button to select
SPEEDTRONIC.
X To change this, press a. X
Press the abutton again.
X Press the :or9 button to set per-
manent Speedtronic in increments of ten
(240 km/h to 160 km/h). Permanent Speedtronic is deactivated with the
off
setting.
X Press ato save the entry. HOLD
HOLD assists the driver in the following sit-
uations:
R when pulling away, especially on steep
slopes
R when manoeuvring on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is cancelled and HOLD
deactivated when you depress the accelera-
tor pedal to pull away.
Activation conditions You can activate HOLD if:
R
the vehicle is stationary.
R the engine is running.
R the driver's door is closed or your seat belt
is fastened.
R the electric parking brake is released.
R the bonnet is closed.
R the automatic transmission is in position
R, Nor D. If the automatic transmission is
in position R, the boot lid must be closed.
Activating HOLD X
Make sure that the activation conditions
are met.
X Depress the brake. Driving systems
245Controls
216_AKB; 2; 3, en-GB
bjanott, Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 245 Z
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:01; WK

X
Rapidly continue to depress the brake until
HOLD :appears in the instrument cluster.
HOLD is activated. You can release the
brake pedal.
i You cannot activate HOLD when Distronic
Plus* is activated.
i The brake pedal does not return com-
pletely to the rest position while HOLD is
activated.
i If HOLD is not activated when you
depress the brake pedal, wait for a short
time and then try again. G
Risk of accident
The vehicle's brakes are applied when HOLD
is activated. For this reason, deactivate HOLD
if the vehicle is to be set in motion by other
means (e.g. in a car wash or by towing).
Deactivating HOLD HOLD is deactivated if:
R
you depress the accelerator pedal with the
transmission in position Dor R.
R you shift the automatic transmission to P.
R you release the brakes fully and apply them
again with a certain amount of pressure
until HOLD goes out in the instrument clus-
ter.
R you secure the vehicle using the electric
parking brake.
R you activate Distronic Plus*.
i After a time, the electric parking brake
secures the vehicle and relieves the service
brake. G
Risk of accident
Never get out of the vehicle when HOLD is
activated.
HOLD must never be operated or deactivated
by a passenger or from outside the vehicle. HOLD does not replace the electric parking
brake and must not be used for parking.
The HOLD braking effect is cancelled and the
vehicle can start moving if:
R HOLD is deactivated by depressing the
accelerator pedal or the brake pedal.
R there is a malfunction 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 battery or the fuses are tam-
pered with.
R the battery is disconnected. G
Risk of accident
If you wish to leave the vehicle or park it,
deactivate HOLD and secure the vehicle
against rolling away. AIRMATIC*
Vehicle level Your vehicle automatically adjusts its ride
height to reduce petrol consumption and
improve driving safety.
The "Normal" and "Raised" vehicle levels can
be set.
Depending on the vehicle height that has
been set, the vehicle automatically adjusts its
height dependent on the current speed. The
vehicle is lowered by up to 10 mm as the
speed increases. As the speed is reduced, the
vehicle is raised up to the set vehicle height.
Setting the vehicle level manually
Select the "Normal" setting for normal road
surfaces and "Raised" for driving with snow
chains or on particularly poor road surfaces.
G
Risk of injury
Make sure that nobody is in the vicinity of the
wheel housing or under the vehicle while low-
ering the vehicle when it is stationary. Other-
wise, limbs could become trapped. 246
Driving sys
temsControls
* optional
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 246
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:01; WK

X
To select raised level: start the engine.
If indicator lamp ;is not lit:
X Press button :.
Indicator lamp ;lights up. The vehicle
height is adjusted to raised level.
The Vehicle rising message appears in
the multi-function display.
X To select the standard level: start the
engine.
If indicator lamp ;is lit:
X Press button :.
Indicator lamp ;goes out. The vehicle is
adjusted to normal level.
i The "Raised level" setting is cancelled at
vehicle speeds above 120 km/h or if the
speed has been between 80 km/h and
120 km/h for more than approximately
three minutes. If you do not drive within this
speed range, the raised level remains
stored, even when the key is removed from
the ignition lock.
Suspension tuning The Adaptive Damping System (ADS) auto-
matically controls the calibration of the
dampers and springs. The damping is tuned individually to each
wheel and depends on:
R
your driving style, e.g. sporty
R the road surface condition, e.g. bumps
R your individual selection, i.e. sports or com-
fort
Your selection remains stored even if you
remove the key from the ignition lock. Sports tuning
The firmer suspension tuning in sports mode
ensures even better contact with the road.
Select this mode when employing a sporty
driving style, e. g. on winding country roads.
X If indicator lamp ;
; is off: press but-
ton :.
Indicator lamp ;lights up. You have selec-
ted the suspension for a sporty driving
style.
The AIRMATIC SPORT message appears in
the multi-function display.
Comfort tuning
In comfort mode, the driving characteristics
of your vehicle are more comfortable. Select
this mode if you prefer a more comfortable
driving style, but also when driving fast on
straight roads, e.g. motorways.
X If indicator lamp ; ;is on: press but-
ton :.
Indicator lamp ;goes out. You have selec-
ted the suspension for a comfortable driv-
ing style. Driving systems
247Controls
216_AKB; 2; 3, en-GB
bjanott, Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 247 Z
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:02; WK

The
AIRMATIC COMFORT message appears
in the multi-function display. Active Body Control (ABC)
Vehicle level Your vehicle automatically adjusts its ride
height to reduce petrol consumption and
improve driving safety.
Depending on the vehicle height that has
been set, the vehicle automatically adjusts its
height dependent on the current speed. The
vehicle is lowered by up to 10 mm as the
speed increases. As the speed is reduced, the
vehicle is raised up to the set vehicle height. G
Risk of injury
The vehicle is lowered when the engine is
switched off. Therefore, make sure that
nobody is in the vicinity of the wheel housing
or under the vehicle when you switch off the
engine. Otherwise, limbs could become trap-
ped.
! The vehicle is lowered by about 5 mm
when the engine is switched off. When
parking, make sure that you stop your vehi-
cle so that it does not make contact with
the kerb as it is lowered. Otherwise, the
vehicle could be damaged.
Setting the vehicle level manually
Select the "Normal" setting for normal road
surfaces and "Raised" for driving with snow
chains or on particularly poor road surfaces. G
Risk of injury
Make sure that nobody is in the vicinity of the
wheel housing or under the vehicle while low-
ering the vehicle when it is stationary. Other-
wise, limbs could become trapped. X
To select the raised level: start the
engine.
If indicator lamp ;is not lit:
X Press button :.
Indicator lamp ;lights up. The vehicle
height is adjusted to raised level.
X To select the standard level: start the
engine.
If indicator lamp ;is lit:
X Press button :.
Indicator lamp ;goes out. The vehicle is
adjusted to normal level.
i The vehicle level setting remains saved
when the vehicle is restarted.
Suspension tuning The electronically controlled ABC chassis sys-
tem is permanently active. This improves driv-
ing safety and ride comfort.
The tuning of the ABC chassis system is con-
trolled at each wheel individually.
R your driving style, e.g. sporty
R the road surface condition, e.g. bumps
R your individual selection, i.e. sports or com-
fort
R the vehicle load
Your selection remains stored even if you
remove the key from the ignition lock. 248
Driving systemsControls
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 248
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:02; WK

Sports tuning
The firmer suspension tuning in sports mode
ensures even better contact with the road.
Select this mode if you prefer firm suspension
tuning.
X
If indicator lamp ;
; is off: press but-
ton :.
Indicator lamp ;lights up. You have selec-
ted the suspension for a sporty driving
style.
The ABC Active Body Control SPORT
message appears in the multi-function dis-
play.
Comfort tuning
In comfort mode, the driving characteristics
of your vehicle are more comfortable. Select
this mode if you prefer comfortable handling.
X If indicator lamp ; ;is on: press but-
ton :.
Indicator lamp ;goes out. You have selec-
ted the suspension for a comfortable driv-
ing style.
The ABC Active Body Control COM‐
FORT message appears in the multi-func-
tion display. 4MATIC* (permanent four-wheel
drive)
4MATIC ensures that all four wheels are per-
manently driven. Together with ESP ®
, it
improves the traction of your vehicle when- ever a drive wheel spins due to insufficient
grip. G
Risk of accident
4MATIC cannot reduce the risk of an accident
if you drive too fast.
If a drive wheel spins due to insufficient grip:
R only depress the accelerator pedal as far as
necessary when pulling away.
R accelerate less when driving.
R adapt your driving style to suit road and
traffic conditions.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if
you use winter tyres (M+S tyres), with snow
chains if necessary. PARKTRONIC
G
Risk of accident
PARKTRONIC is only an aid and may not
detect all obstacles. It does not relieve you of
the responsibility of paying attention.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others. G
Risk of injury
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
PARKTRONIC is an electronic parking aid with
ultrasound. It assists you when parking by
displaying the distance between your vehicle
and an obstacle. It also emits a warning tone
when you approach an obstacle.
PARKTRONIC is activated automatically when
you switch on the ignition, release the electric
parking brake or start the engine and shift the
automatic transmission to D,Ror N. Driving systems
249Controls
* optional
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 249 Z
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:02; WK

PARKTRONIC is deactivated at speeds above
18 km/h. PARKTRONIC is reactivated at
lower speeds. PARKTRONIC is deactivated
when you shift the automatic transmission to
P or engage the electric parking brake and
switch off the engine.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper. :
Example: sensors in the front bumper,
left-hand side
Range of the sensors The sensors must be free of dirt, ice and
slush; otherwise, they may not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them. Side view Top view
Front sensors
Centre Approximately 100 cm
Corners Approximately 60 cm
Rear sensors
Centre Approximately 120 cm
Corners Approximately 80 cm
!
When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer towbars. PARK-
TRONIC does not detect such objects when
they are in the immediate vicinity of the
vehicle. You could damage the vehicle or
the objects.
Ultrasonic sources such as an automatic
car wash, a lorry's compressed-air brake
system or a pneumatic drill could cause
PARKTRONIC to malfunction.
Minimum distance Centre Approximately 20 cm
Corners Approximately 20 cm
If there is an obstacle within this range, all
warning displays light up and a tone sounds.
If the distance falls below the minimum clear-
ance, it may no longer be shown.250
Driving systemsControls
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 250
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:03; WK

Warning displays
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is in the
instrument cluster. The warning display for
the rear area is located on the roof lining in
the rear compartment.
Warning display for front area
:
Left-hand side of the vehicle
; Right-hand side of the vehicle
= Operational readiness symbols
The warning display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if the yel-
low operational readiness symbols =light
up.
The automatic transmission position deter-
mines which warning display is active when
the engine is running: Automatic trans-
mission position Warning display
D
Front area activated
R
Rear and front areas
activated
N
If electric parking
brake is engaged:
none
If electric parking
brake is released:
rear and front areas
are activated
P
No areas activated One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance to the obstacle. When the
first red segment lights up, you hear an inter-
mittent warning for about two seconds. From
the second red segment, you hear a continu-
ous warning. You have reached the minimum
distance.
Activating/deactivating PARKTRONIC
:
To deactivate/activate PARKTRONIC
; Indicator lamp
PARKTRONIC is deactivated if indicator
lamp ;is lit. Park Assist*
G
Risk of accident
Park Assist is only an aid and may not detect
all obstacles. Park Assist may not be able to
detect objects in corners or on smooth surfa-
ces. Park Assist does not relieve you of the
responsibility to pay attention.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. Otherwise, you could endanger
yourself and others. G
Risk of injury
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured. Driving systems
251Controls
* optional
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 251 Z
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:03; WK

!
You must deactivate the radar sensor sys-
tem in certain countries and near radio
telescope facilities. Further information
can be found in the index under "Radar
sensor system".
Vehicles with COMAND and navigation sys-
tem*: the radar sensor system is automati-
cally deactivated near radio telescope facili-
ties (Y page 411).
If you want Park Assist to assist you, the radar
sensor system must be activated and opera-
tional.
Park Assist is an electronic parking aid with
radar sensors. It assists you when parking by
displaying the distance between your vehicle
and an obstacle, and by emitting a warning
tone when you approach an obstacle.
Park Assist is automatically activated when
you shift the automatic transmission to D,R
or Nwhile the engine is running.
Park Assist is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
Park Assist is also deactivated when you shift
the automatic transmission to Por switch off
the engine.
Park Assist is deactivated when the transmis-
sion is in position Nif you use the electric
parking brake to secure the vehicle.
Park Assist monitors the area around your
vehicle using four sensors in the front bumper
and two sensors in the rear bumper.
Range of the sensors Side view Top view
i
As the sensors have a wide detection
range, Park Assist may detect and warn you
about the following obstacles:
R Obstacles on the ground, such as man-
hole covers, rails, holes in the road or
drains
R Obstacles that move upwards quickly,
such as roller doors
Front sensors Display range
Centre Approximately 100 cm
Corners Approximately 60 cm
Rear sensors
Display range
Centre Approximately 125 cm
Corners Approximately 60 cm
!
Pay particular attention to objects above
or below the sensors when parking, such
as low walls around flower beds, high cross-
bars or trailer towbars. Park Assist does not
detect such objects when they are in the
immediate vicinity of the vehicle. You could
damage the vehicle or the objects.
i The Park Assist sensors are built into the
front and rear bumpers. Make sure that the
bumpers are free from dirt, ice or slush in 252
Driving systemsControls
* optional
216_AKB; 2; 3, en-GB
bjanott,
Version: 2.11.7.7 2009-02-27T14:54:17+01:00 - Seite 252
Dateiname: 6515230602_buchblock.pdf; erzeugt am 04. Mar 2009 11:16:04; WK