2009 MERCEDES-BENZ CL COUPE brake sensor

Opening and closing
Key
The key centrally locks/unlocks:
R the doors
R the boot lid
R the fuel filler flap G
Risk of accident
If children are left unsupervised in the vehicle,
they could:
R open a door from the inside at any time,
even if it has been locked
R start the vehicle using a key which has been
left in the vehicle
R release the parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for a short time. :
Battery check lamp
; & To lock the vehicle
= F To unlock the boot lid
? % To unlock the vehicle
When unlocking, the turn signals flash once.
When locking, they flash three times.
When it is dark, the surround lighting also
comes on if it is activated in COMAND.
If you do not open either a door or the boot
lid after you have unlocked the vehicle, it will automatically relock after approximately 40
seconds.
KEYLESS GO* You can start, lock or unlock the vehicle using
KEYLESS GO. To do this, you only need carry
the key with you. When you touch the surface
of the sensors on the vehicle's door handles,
KEYLESS GO establishes a radio connection
between the vehicle and the key.
The distance to the vehicle's door handle
from which you wish to lock or unlock the
vehicle must not be greater than 1 m.
When starting the engine and whilst driving,
KEYLESS GO also checks whether a valid key
is in the vehicle by periodically establishing
radio contact. X
To unlock the vehicle: pull the door han-
dle.
X To lock the vehicle: touch sensor sur-
face :.
If you pull on the handle of the boot lid, only
the boot of the vehicle is unlocked.
i If the vehicle has been parked for a long
time, the sensor surfaces are deactivated
automatically.
Pull on the door handle to unlock the door
and switch on the ignition once to reacti-
vate the sensors. 178
Opening and closingControls
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With the key:
R
release the &button.
R press and hold the %button until the
side windows and the sliding/tilting sun-
roof open again.
With KEYLESS GO*:
R release the sensor surface on the door han-
dle.
R pull the door handle immediately and hold
it.
The side windows and the sliding/tilting
sunroof open.
Using the key X
Point the tip of the key at the driver's door
handle.
X Lock the vehicle with the &button.
X Press and hold the &button until the
side windows and the sliding/tilting sun-
roof are fully closed.
X Make sure that all the side windows and the
sliding/tilting sunroof are closed. Using KEYLESS GO* X
Touch the sensor surface on door han-
dle :until the side windows and the slid-
ing/tilting sunroof are fully closed.
i Make sure you only touch sensor sur-
face :.
X Make sure that all the side windows and the
sliding/tilting sunroof are closed. Driving and parking
Starting the engine
G
Risk of accident
Do not put any objects in the driver's footwell.
If you use a floormat or carpet in the driver's
footwell, make sure that they are correctly
secured and that there is sufficient clearance
for the pedals.
Do not place several floormats on top of one
another.
Otherwise, the objects or floormats could get
between the pedals in the event of sudden
braking or acceleration. You may then no lon-
ger be able to brake, change gear or acceler-
ate as intended. This may result in an accident
and injury. G
Risk of poisoning
Never leave the engine running in enclosed
spaces. The exhaust gases contain carbon
monoxide. Inhaling exhaust fumes consti- 202
Driving and parkingControls
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cal beam is activated, the edge of the carria-
geway is no longer illuminated as wide and
high. Note that not all light functions are avail-
able when tourist mode is activated.
When you again drive on the same side of the
road as in the country of registration, have
tourist mode deactivated at a qualified spe-
cialist workshop, e.g. a Mercedes-Benz
service centre, as soon as possible after
crossing the border.
Showing/hiding the additional speed-
ometer The additional speedometer can be shown in
the multi-function display.
Vehicles with a kilometre speedometer: the
additional speedometer has mph units.
Vehicles with a miles speedometer: the addi-
tional speedometer has km/h units.
X Press the =or; button to select the
Settings menu.
X Press 9or: to select Dig.
speedo.
X Press the abutton.
X To activate/deactivate: pressa
again.
Selecting the units for speed/distance The
Display unit Speed-/odometer:
function allows you to choose whether the
multi-function display shows km/h or mph in
certain cases.
The selected units apply to:
R the analogue speedometer
R the total distance recorder and the trip
meter
R the trip computer
R the digital speedometer in the Tripmenu
R the distance values in the navigation sys-
tem*
R cruise control R
Speedtronic
R Distronic*
R Distronic Plus*
R the ASSYST PLUS service interval display
The digital speedometer shows alternative
speed units (Y page 226).
X Press the =or; button to select the
Settings menu.
X Press 9or: to select Units.
X Press the abutton.
X To select a different display unit: press
a again.
The unit switches km/handmph.
Activating/deactivating the radar sen-
sor system* !
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 a navigation system*: the radar
sensor system is deactivated automatically if
you are close to radio telescope facilities.
The following systems are switched off when
the radar sensor system is deactivated:
R Distronic Plus* (Y page 235)
R BAS PLUS* (Y page 49)
R Park Assist* (Y page 251) and Parking
Guidance*(Y page 254)
R PRE-SAFE ®
Brake* (Y page 52)
R Blind Spot Assist* (Y page 260)
X Press the =or; button to select the
Settings menu.
X Press 9or: to select Radar sen‐
sor system. 226
On-board computerControls
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G
Risk of accident
The brake pedal is retracted when Distronic
brakes. Do not restrict the movement of the
pedal in any way.
R Do not put any objects in the footwell.
R Ensure that floor mats and carpets are fixed
securely.
R Do not place your foot under the brake
pedal as it could become trapped.
You could otherwise cause an accident and
injure yourself and others. 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. G
Risk of accident
Distronic is only an aid designed to assist
driving. The driver remains fully responsible
for the vehicle's distance from other vehicles,
the vehicle's speed and for braking in good
time.
Distronic does not react to:
R pedestrians
R stationary obstacles on the road, e.g. sta-
tionary or parked vehicles
R oncoming and crossing traffic
Distronic may not detect narrow vehicles driv-
ing in front, e.g. motorcycles, or vehicles driv-
ing on a different line. Therefore, always pay
attention to traffic conditions even when Dis-
tronic is activated. Otherwise, you may fail to
recognise dangers in time, could cause an
accident and injure yourself and others.
If a slower-moving vehicle is detected in front,
Distronic causes your vehicle to brake and
maintain the preset distance to the vehicle in
front that you have set. G
Risk of accident
Distronic cannot take account of road and
traffic conditions. Deactivate, or do not acti-
vate, Distronic if it does not detect the vehicle
in front, or if it no longer detects it. This is
especially the case:
R before corners
R in filter lanes
R when changing to a lane with faster moving
traffic
R in complex driving situations or where the
lanes are diverted, e.g. at roadworks on a
motorway
Otherwise, Distronic maintains the current
speed or accelerates to the set speed.
Distronic cannot take account of weather
conditions. Deactivate, or do not activate,
Distronic:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip when
braking or accelerating. The vehicle could
start to skid.
R if the sensors are dirty or there is poor vis-
ibility, e.g. due to snow, rain or fog. Dis-
tance control may be impaired.
Always pay attention to traffic conditions
even when Distronic is activated. Otherwise,
you may fail to recognise dangers in time,
could cause an accident and injure yourself
and others.
If there is no vehicle in front, Distronic oper-
ates in the same way as cruise control. Dis-
tronic functions in the 30 km/h to
200 km/h range. G
Risk of accident
Distronic brakes your vehicle at a maximum
of 2 m/s 2
, depending on its speed. This cor-
responds to approximately 20% of your vehi-
cle's maximum braking power. You must also
apply the brakes yourself if this braking power
is not sufficient. 230
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G
Risk of accident
Distronic Plus cannot take account of road
and traffic conditions. If Distronic does not
recognise or no longer recognises the vehicle
in front, do not activate Distronic or, if it is
already active, deactivate it. This is especially
the case:
R before corners
R in filter lanes
R when changing to a lane with faster moving
traffic
R in complex driving situations or where the
lanes are diverted, e.g. at roadworks on a
motorway
Otherwise, Distronic Plus maintains the cur-
rent speed or accelerates up to the set speed.
Distronic Plus cannot take account of weather
conditions. Deactivate, or do not activate,
Distronic Plus:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip when
braking or accelerating. The vehicle could
start to skid.
R if the sensors are dirty or there is poor vis-
ibility, e.g. due to snow, rain or fog. Dis-
tance control may be impaired.
Always pay attention to traffic conditions
even when Distronic Plus is activated. Other-
wise, you may fail to recognise dangers in
time, could cause an accident and injure your-
self and others.
! 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*: you must deactivate the radar sensor
system near radio telescope facilities
(Y page 411). If you want Distronic Plus to assist you, the
radar sensor system must be activated and
operational.
If no car is driving in front of you, Distronic
Plus works like cruise control in the speed
range between 30 km/h and 200 km/h. If a
vehicle is driving in front of you, Distronic Plus
works in the speed range between 0 km/h
and 200 km/h.
Do not use Distronic Plus while driving on
roads with steep gradients.
G
Risk of accident
Distronic Plus brakes your vehicle at a maxi-
mum of 4m/s2
depending on its speed. This
corresponds to approximately 40% of your
vehicle's maximum brake force. You must
also apply the brakes yourself if this braking
power is not sufficient.
If Distronic Plus detects a risk of collision with
a vehicle in front, an intermittent warning tone
sounds. In addition, the ·distance warn-
ing lamp in the instrument cluster lights up.
Brake to avoid a collision.
Cruise control lever With the cruise control lever you can operate
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:
Distronic Plus is selected.
R LIM indicator lamp lit:
Variable Speedtronic is selected. 236
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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
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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
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!
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
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