2010 MERCEDES-BENZ CL CLASS ECU

USA only
You can only switch on the high-beam
headlamps in low ambient lighting conditions.
The high-beam flasher is available at all times.
When the engine is running, and you turn the
exterior lamp switch to position T or
L, the manual headlamp mode has
priority over the daytime running lamp mode.
The corresponding exterior lamps come on
(Y page 275).
Fog lamps
Fog lamps cannot be switched on with the
exterior lamp switch in position c.
G
Warning!
In low ambient lighting or foggy conditions,
only switch from position c to L with
the vehicle at a standstill in a safe location.
Switching from c to L will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions may
result in an accident.
Fog lamps will operate with the parking lamps
and/or the low-beam headlamps on. Fog
lamps should only be used in conjunction with
low-beam headlamps. Consult your State or
Province Motor Vehicle Regulations
regarding permissible lamp operation.
X Switch on the ignition.
X Turn the exterior lamp switch to position
T or L (Y page 275).
X Switching on front fog lamps: Pull out the
exterior lamp switch to first stop.
The green indicator lamp N in the
exterior lamp switch comes on.
X Switching on rear fog lamp: Pull out the
exterior lamp switch to second stop.
The rear fog lamp, the front fog lamps, the
green N and the yellow indicator lamp
R in the exterior lamp switch come on.
X Switching off front fog lamps/rear fog
lamp: Push in the exterior lamp switch to
its stop. Locator lighting and night security
illumination The locator lighting and night security
illumination are described in the COMAND
vehicle menu section under (Y page 191).
Combination switch
Turn signals
X
Press the combination switch in direction
of arrow ; or ?.
The corresponding turn signal indicator
lamp ! or # in the instrument
cluster flashes.
The combination switch resets automatically
after major steering wheel movements.
To signal minor directional changes:
X Press the combination switch only to the
point of resistance in direction of
arrow ; or ? and release.
The corresponding turn signal lamps will
flash three times. Lighting
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Transmission positions
The current transmission position appears in
the multifunction display. :
Transmission position indicator
If the current transmission position does not
appear in the multifunction display due to a
malfunction, for example, make sure that the
automatic transmission is in the desired
position.
X Shift the automatic transmission into drive
position D.
X Select automatic program mode S.
X Do not limit the gear range.
X Drive off carefully. Effect
B
Park position
Shift the automatic transmission
into park position P only when the
vehicle is stopped. The park position
is not intended to serve as a brake
when the vehicle is parked. Rather,
the driver should always engage the
electronic parking brake in addition
to shifting the automatic
transmission into park position
P to
secure the vehicle.
If the vehicle’s electrical system is
malfunctioning, the automatic
transmission could remain locked in
park position P.
X Have the vehicle’s electrical
system checked at an authorized
Mercedes-Benz Center as soon as
possible. C
Reverse gear
Shift the automatic transmission
into reverse gear R only when the
vehicle is stopped.294
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Steam from an overheated engine can cause
serious
burns
which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
During severe operating conditions, e.g. stop-
and-go traffic, the coolant temperature may
rise close to 248‡ (120†), i.e close to the
red zone of the temperature gauge.
! Excessive coolant temperature triggers a
warning in the multifunction display.
The engine should not be operated with a
coolant temperature above 248‡ (120†),
i.e. in the red zone of the coolant
temperature gauge. Doing so may cause
serious engine damage which is not
covered by the Mercedes-Benz Limited
Warranty. Tachometer
The red marking on the tachometer
(Y page

29) denotes excessive engine speed.
! Avoid driving at excessive engine speeds,
as it may result in serious engine damage
that is not covered by the Mercedes-Benz
Limited Warranty.
To help protect the engine, the fuel supply is
interrupted if the engine is operated within
the red marking. Outside temperature indicator
The outside temperature indicator is on the
bottom left-hand side of the instrument
cluster (Y page 29). G
Warning!
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose. Indicated temperatures just above the
freezing
point

do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges. Fuel gauge
The fuel gauge is on the left-hand side of the
instrument cluster

(Y page 29). Once the fuel
level has fallen below the reserve mark, the
yellow segment indicator for the fuel reserve
comes on. Driving systems
Introduction
This section describes the following driving
systems of your vehicle:
R Cruise control
R DISTRONIC PLUS
R Hill-start assist system
R HOLD function
R AIRMATIC
R Active Body Control (ABC)
R All-wheel drive (4MATIC)
R Parktronic system
R Park Assist
R Advanced Parking Guidance
R Rear view camera
R Night View Assist
R Blind Spot Assist
The driving safety systems ABS, Adaptive
Brake, Adaptive Brake Lights, BAS, BAS
PLUS, EBP, ESC and PRE-SAFE ®
Brake are
described in

the “Safety and security” section
(Y page 56). Driving systems
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Cruise control
The cruise control maintains the speed you
set for your vehicle automatically.
The use of the cruise control is recommended
for driving at a constant speed for extended
periods of time.
The currently set speed or last set speed
(“Resume” function) appears in the
multifunction display for approximately
5 seconds. The set speed is shown by a
triangle in the speedometer and the
corresponding speedometer segments from
the selected speed to the vehicle maximum
speed in the multifunction display are
illuminated. G
Warning!
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road, traffic,
and weather conditions make it advisable to
travel at a constant speed.
R The use of the cruise control can be
dangerous on winding roads or in heavy
traffic because conditions do not allow safe
driving at a constant speed.
R The use of the cruise control can be
dangerous on slippery roads. Rapid
changes in tire traction can result in wheel
spin and loss of control.
R Deactivate the cruise control when driving
in fog.
The “Resume” function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed. G
Warning!
When the cruise control is braking, the brake
pedal is retracted (i.e. depressed
automatically). The pedals’ range of motion
must not be impeded by any obstacles:
R Do not place any objects in the footwell.
R Make sure that the floormats and carpets
are securely in place.
R Do not rest your foot underneath the brake
pedal, as it could otherwise be trapped.
You could otherwise cause an accident and
injure yourself and/or others. :
Setting current or higher speed
; Setting current or lower speed
= Canceling the cruise control
? Activating the cruise control or resuming
to last set speed
Activating cruise control You can activate the cruise control at a
vehicle speed above 20 mph (30 km/h).
You cannot activate the cruise control
R
when you brake
R when you have engaged the electronic
parking brake
R when the automatic transmission is in park
position P, reverse gear R, or neutral
position N
R the ESC is switched off or has switched off
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G
Warning!
When the DISTRONIC PLUS is braking, the
brake pedal is retracted (i.e. depressed
automatically). The pedals’ range of motion
must not be impeded by any obstacles:
R Do not place any objects in the footwell.
R Make sure that the floormats and carpets
are securely in place.
R Do not
rest your foot underneath the brake
pedal, as it could otherwise be trapped.
You could otherwise cause an accident and
injure yourself and/or others. G
Warning!
The DISTRONIC PLUS is a convenience
system. Its speed adjustment reduction
capability is intended to make cruise control
more effective

and usable when traffic speeds
vary. It is not however, intended to, nor does
it, replace the need for extreme care.
The responsibility for the vehicle’s speed,
distance to the preceding vehicle and, most
importantly, brake operation to ensure a safe
stopping distance, always remains with the
driver.
The DISTRONIC PLUS cannot take street and
traffic conditions into account.
Complex driving situations are not always
fully recognized by the DISTRONIC PLUS. This
could result in wrong or missing distance
warnings. G
Warning!
The DISTRONIC PLUS adaptive cruise control
is not a substitute for active driving
involvement. It does not react to pedestrians
or on

stationary objects, nor does it recognize
or predict the curvature and lane layout or the
movement of preceding vehicles. The
DISTRONIC PLUS can only apply a maximum
of 40% of the vehicle’s braking power.
The DISTRONIC PLUS may not detect narrow
vehicles possibly driving in front of you, such as motorcycles and vehicles driving in an
offset formation.
It is the driver’s responsibility at all times to
be attentive to the road, weather and traffic
conditions. Additionally, the driver must
provide
the

steering, braking and other driving
inputs necessary to remain in control of the
vehicle.
High-frequency sources such as toll stations,
speed measuring systems etc. can cause the
DISTRONIC PLUS system to temporarily
cease functioning. G
Warning!
The DISTRONIC PLUS cannot take road and
traffic conditions into account. Only use the
DISTRONIC PLUS if the road, weather and
traffic conditions make it advisable to travel
at a constant speed. G
Warning!
Use of the DISTRONIC PLUS can be
dangerous on slippery roads. Rapid changes
in tire traction can result in wheel spin and
loss of control.
The DISTRONIC PLUS does not function in
adverse sight

and distance conditions. Do not
use the DISTRONIC PLUS during conditions of
fog, heavy rain, snow or sleet. G
Warning!
The DISTRONIC PLUS cannot take weather
conditions into account. Switch off the
DISTRONIC PLUS or do not switch it on if:
R roads are

slippery or covered with snow or
ice. The wheels could lose traction while
braking or accelerating, and the vehicle
could skid.
R the DISTRONIC PLUS system sensor covers
are dirty or visibility is diminished due to
snow, rain or fog, for example. The distance
control system functionality could be
impaired.
Always pay attention to surrounding traffic
conditions even while the DISTRONIC PLUS is Driving systems
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:
Preceding vehicle, if detected
; Actual distance to the preceding vehicle
= Preset distance threshold to the
preceding vehicle
? Your vehicle
DISTRONIC PLUS lever :
Setting current or higher speed
; Setting current or lower speed
= Deactivating the DISTRONIC PLUS
? Activating the DISTRONIC PLUS or
resuming to the last set speed
A Setting following distance
Activating DISTRONIC PLUS G
Warning!
When the DISTRONIC PLUS is switched on,
the vehicle can be braked. You should
therefore switch off the DISTRONIC PLUS if
the vehicle must be towed. You can activate the DISTRONIC PLUS when
the vehicle speed is above 20 mph
(30 km/h).
It is also possible to activate the DISTRONIC
PLUS when the vehicle speed is below
20 mph (30 km/h) and the DISTRONIC PLUS
has detected a preceding vehicle.
If the DISTRONIC PLUS is activated, the set
speed is indicated with marker
;
(Y page 307) in the speedometer dial.
The maximum vehicle speed you can set is
120 mph (Canada: 200 km/h).
If the DISTRONIC PLUS is not activated after
the DISTRONIC PLUS lever is pulled in
direction of arrow ? (Y page 309), you will
see the message: DISTRONIC PLUS ---
mph (Canada: DISTRONIC PLUS --- kmh) in
the multifunction display.
In the following cases you cannot activate the
DISTRONIC PLUS:
R within 2 minutes after driving off, following
an engine start
R if the vehicle is secured with the electronic
parking brake
R if the ESC is switched off or has switched
off due to a malfunction
R when the automatic transmission is in park
position P, reverse gear R, or neutral
position N
R if the hood is open
R if the driver’s door is open and the driver
has not fastened his or her seat belt
R if the passenger door is open
R if the radar sensors are switched off
(Y page 216)
Switching on while driving You can switch on the DISTRONIC PLUS when
the vehicle speed is above 20 mph
(30 km/h).
Below 20 mph (30 km/h), you can only switch
on the DISTRONIC PLUS if the preceding Driving systems
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Stopping
G
Warning!
The braking effect of the DISTRONIC PLUS is
canceled and the vehicle can start to roll if
R the DISTRONIC PLUS is switched off using
the DISTRONIC PLUS lever
R you accelerate
R the DISTRONIC PLUS system or the power
supply is
malfunctioning, e.g. due to battery
failure
R the electrical components in the engine
compartment or the fuses have been
manipulated
R the battery is disconnected G
Warning!
Never get out of the vehicle while the
DISTRONIC PLUS is switched on!
The DISTRONIC

PLUS must never be operated
or switched off by passengers or from outside
the vehicle.
The DISTRONIC PLUS is not a substitute for
the electronic parking brake. It must not be
used to secure the vehicle when parking.
When you get out of the vehicle or switch off
the engine, deactivate the DISTRONIC PLUS
and secure the vehicle from rolling away by
engaging the electronic parking brake.
When the DISTRONIC PLUS detects that the
preceding vehicle is stopping, the vehicle
brakes until it also stops. Once the vehicle is
at a standstill, it remains stationary, without
depressing the brake pedal.
After a short while, the vehicle is secured in
place by the electronic parking brake so that
the operating brake can be relieved of load.
Depending on the following distance set
using the distance setting switch on the
DISTRONIC PLUS lever (Y page 313), the
vehicle will stop adequate away from the
preceding vehicle.
When the DISTRONIC PLUS is activated and
the vehicle is at a standstill, the automatic transmission shifts into park position
P
automatically when
R opening the

driver’s door and releasing the
seat belt
R turning off the engine
R opening the hood
R a system malfunction occurs
R the on-board voltage is insufficient
The DISTRONIC PLUS is deactivated.
Setting the current speed X
Accelerate or decelerate to the desired
speed.
X Briefly lift the DISTRONIC PLUS lever in
direction of arrow : or depress in
direction of arrow ; (Y page 309).
The current speed is set.
X Remove your foot from the accelerator
pedal.
i If you do not take your foot off of the
accelerator pedal and continue to
accelerate past

the set speed, the following
message will appear in the multifunction
display:
DISTRONIC PLUS Override
The distance to a slower moving vehicle in
front of you will not be set. Your vehicle
speed will then be determined only by the
accelerator pedal position.
Changing the set speed G
Warning!
Keep in mind that it may take a brief moment
until the vehicle has made the necessary
adjustments.
Increase or

decrease the set vehicle speed to
a value that the prevailing road conditions and
legal speed limits permit. Otherwise, sudden
and unexpected acceleration or deceleration
of the vehicle could cause an accident and/
or serious injury to you and others. Driving systems
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You can increase or decrease the set speed
in 1 mph (Canada:
1 km/h) increments or in
5 mph (Canada:
10 km/h) increments.
When you use the DISTRONIC PLUS lever to
decelerate, the brake system will brake the
vehicle automatically if the engine’s braking
power does not brake the vehicle sufficiently.
Adjustment in 1 mph (Canada:
1 km/h) increments
i The set speed value is increased or
decreased in 1 mph (Canada: 1 km/h)
increments each time you lift or press the
DISTRONIC PLUS lever up or down to the
resistance point.
X Increasing: Briefly lift the DISTRONIC
PLUS lever up to the resistance point in
direction of arrow :.
X Decreasing: Briefly press the DISTRONIC
PLUS lever

down to the resistance point in
direction of arrow ;.
X Release the DISTRONIC PLUS lever.
The new speed is set and the vehicle will
accelerate or decelerate.
Adjustment in 5 mph (Canada:
10 km/h) increments
i The set speed value is increased or
decreased in 5 mph (Canada: 10 km/h)
increments each time you lift or press the
DISTRONIC

PLUS lever up or down past the
resistance point.
X Increasing: Briefly lift the DISTRONIC
PLUS lever up past the resistance point in
direction of arrow :.
X Decreasing: Briefly press the DISTRONIC
PLUS lever down past the resistance point
in direction of arrow ;.
X Release the DISTRONIC PLUS lever.
The new speed is set and the vehicle will
accelerate or

decelerate. Keep in mind that
it may take a brief moment until the vehicle
has reached the set speed. Setting stored speed (Resume function) G
Warning!
The set speed stored in memory should only
be set again if prevailing road conditions and
legal speed limits permit. Possible
acceleration or deceleration differences
arising from returning to the preset speed
could cause

an accident and/or serious injury
to you and others.
X Briefly pull the DISTRONIC PLUS lever in
direction of arrow ? (Y page 309).
The DISTRONIC PLUS is activated and
resumes to the last set speed or, if no
speed is stored, it will set and store the
current speed.
X Remove your foot from the accelerator
pedal.
Deactivating DISTRONIC PLUS X
Depress the brake pedal (only possible if
the vehicle is in motion).
or
X Briefly push the DISTRONIC PLUS lever in
direction of arrow = (Y page 309).
The last set speed is stored for later use.
The last stored speed is deleted from memory
when the engine is turned off.
The DISTRONIC PLUS switches off
automatically when
R the vehicle is secured with the electronic
parking brake
R the vehicle speed falls below 15 mph
(25 km/h) and no preceding vehicle is
detected
R the ESC is in operation, or switched off via
the control

system (Y page 212), or the ESC
has switched off due to a malfunction
R you shift the automatic transmission into
park position P, reverse gear R, or neutral
position N while driving 312
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