engine MERCEDES-BENZ CL CLASS 2010 Repair Manual

X
Increasing: Briefly lift the cruise control
lever up
to the resistance point in direction
of arrow :.
X Decreasing: Briefly press the cruise
control lever down to the resistance point
in direction of arrow ;.
X Release the cruise control 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
cruise control lever up or down past the
resistance point.
X Increasing: Briefly lift the cruise control
lever up past the resistance point in
direction of arrow

:.
X Decreasing: Briefly press the cruise
control lever down past the resistance
point in direction of arrow ;.
X Release the cruise control 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 cruise control lever in
direction of arrow ?.
If no speed is stored, the current speed is
set and stored.
X Remove your foot from the accelerator
pedal.
The last stored speed is deleted from memory
when the engine is turned off. DISTRONIC PLUS
Safety notes When activated, the DISTRONIC PLUS
adaptive
cruise

control system increases the
driving convenience afforded by the cruise
control while traveling on expressways and
other major roadways.
R If the DISTRONIC PLUS distance sensor
detects a slower moving vehicle directly
ahead, your vehicle speed will be reduced
so that you follow that vehicle at your
preset following distance.
R If there is no vehicle directly ahead of you,
the DISTRONIC PLUS will function in the
same way as standard cruise control
(Y page 302). G
Warning!
The DISTRONIC PLUS requires familiarity with
its operational characteristics. We strongly
recommend that you review the following
information carefully before operating the
system. 304
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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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HOLD function
The HOLD function can assist you
R when driving off, especially on steep slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
Upon depressing the accelerator pedal, the
braking effect is canceled and the HOLD
function is deactivated.
Activation conditions You can activate the HOLD function when
R
the vehicle is stationary
R the engine is running
R your seat belt is fastened or the driver’s
door is closed
R the electronic parking brake is released
R the hood is closed
R the automatic transmission is in neutral
position N, drive position D, or reverse gear
R
When the automatic transmission is in
reverse gear R, the trunk lid must be
closed.
R the DISTRONIC PLUS is deactivated
(Y page 312).
Activating HOLD X
Make sure the activation conditions are
met.
X Depress the brake pedal.
X Continue to depress the brake pedal with
increased pedal pressure until the message
HOLD appears in the multifunction display.
The HOLD function is activated. You can
now release the brake pedal. HOLD function activated
i
The brake pedal does not return to the
rest position completely while the HOLD
function is activated.
i If the HOLD function is not activated when
depressing the brake pedal, wait briefly and
repeat the above steps. G
Warning!
The vehicle’s brakes are applied when the
HOLD function is activated. Therefore,
deactivate the HOLD function, for example,
when the vehicle is pulled through an
automatic car wash or being towed.
Deactivating HOLD The HOLD function is switched off when
R
you depress the accelerator pedal with the
automatic transmission in drive position D
or reverse gear R
R you shift the automatic transmission into
park position P
R you depress the brake pedal fully again
until the message HOLD in the multifunction
display disappears
R you engage the electronic parking brake
R you activate the DISTRONIC PLUS
i After a while, the vehicle will be secured
by the electronic parking brake to relieve
the service brake. 316
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G
Warning!
The braking effect of the HOLD function is
canceled and the vehicle can start to roll if
R the HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal
R the HOLD function 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 HOLD
function is activated!
The HOLD function must never be operated
or deactivated by passengers or from outside
the vehicle.
The HOLD function does not replace the
electronic parking brake. It must not be used
to secure the vehicle when parking.
Deactivate the HOLD function when leaving
or parking the vehicle. Use the electronic
parking brake to secure the vehicle.
When the HOLD function is activated, 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 HOLD function is deactivated. AIRMATIC
Introduction The AIRMATIC lets you select the chassis and
suspension setup. The chassis and suspension setup adjusts the damping
behavior and the ride height for your vehicle.
The AIRMATIC consists of two components.
The Adaptive Damping System (ADS)
(Y page 317) and the vehicle level control
(Y page 318).
Adaptive Damping System (ADS)
The Adaptive Damping System (ADS) is
controlled electronically and operates
continuously. It adjusts the damping
characteristics to the current operating and
driving conditions. The damping is adjusted
individually for each wheel. Driving safety and
tire comfort are increased.
The fine tuning of the damping is dependent
on
R your driving style
R road surface conditions
R your personal settings
The selected setting remains stored in
memory even if the SmartKey is removed
from the starter switch. X
Start the engine.
Sporty damping adjustment
The firmer suspension tuning in sport driving
mode provides enhanced road contact.
Select this mode for example, on winding
highways. Driving systems
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X
If indicator lamp ; is not lit: Press ADS
switch :.
Indicator lamp ; comes on. The sport
driving mode with a firmer suspension
tuning is selected. The message
AIRMATIC SPORT appears in the
multifunction display.
Comfort damping adjustment
Vehicle handling in comfort driving mode is
softer. Select this mode when you prefer a
more comfortable driving style on straight
freeways.
X If indicator lamp ; is lit: Press ADS
switch :.
Indicator lamp ; goes out. The comfort
driving mode is selected. The message
AIRMATIC COMFORT appears in the
multifunction display.
Vehicle level control Your vehicle automatically adjusts its ride
height.
The all-around vehicle level control provides
best possible suspension and constant
ground clearance. The vehicle lowers at high
speed automatically in order to increase
driving safety and to reduce fuel
consumption.
The following vehicle levels are available:
R
normal
R raised; the vehicle is raised by
approximately 1.0 in (25 mm) compared to
normal level
R lowered; the vehicle is lowered by
approximately 0.4 in (10 mm) compared to
normal level
You can choose between normal or raised
level when the vehicle is stationary and the
engine is running.
The vehicle chassis ride height is raised or
lowered according to the selected level
setting and to the vehicle speed. With
increasing speed, ride height is reduced by up to approximately 0.8 in (20 mm). With
decreasing speed, the ride height is again
raised to the selected vehicle level.
i
These height adjustments are so small
that you may not notice any change.
Adjusting vehicle level manually G
Warning!
To help avoid personal injury, keep hands and
feet away from wheel housing area, and stay
away from under the vehicle when lowering
the vehicle chassis.
Select the normal level for driving on normal
roads. Select the raised level for driving on
rough roads or with snow chains. Select the
raised level only when required by current
driving conditions. Otherwise, the handling
may be impaired and the fuel consumption
may increase.
The selected vehicle level setting remains
stored in memory even if the SmartKey is
removed from the starter switch. Selecting raised level
X
Start the engine.
When indicator lamp ; is off:
X Briefly press vehicle level control
switch :.
Indicator lamp ; comes on. The vehicle
adjusts from normal level to raised level.
The message: Vehicle Rising appears in
the multifunction display when adjusting
from normal level to raised level. The 318
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message disappears when the vehicle is
raised. Indicator lamp
; is then lit.
When the
vehicle is in raised level, pressing
vehicle level control switch : will return
the vehicle to normal level.
The vehicle is lowered to the normal level
automatically when
R the vehicle speed is above 75 mph
(120 km/h)
R the vehicle speed stays between 50 mph
(80 km/h) and 75 mph (120 km/h) for
approximately 3 minutes.
Indicator lamp

; in
vehicle level control switch : goes out.
If you do not drive in this speed range, the
selected vehicle level setting remains stored
in memory even if the SmartKey is removed
from the starter switch.
Selecting normal level
X Start the engine.
When indicator lamp ; is on:
X Briefly press vehicle level control
switch :.
Indicator lamp ; goes out. The vehicle
adjusts from raised level to normal level. ABC
The ABC system is an active, computer-
controlled system that adjusts the
suspension hydraulically at all four wheels in
response to various driving situations. It
selects the optimum suspension tuning and
ride height for your vehicle automatically.
Vehicle level control Your vehicle adjusts its ride height
automatically to increase vehicle safety and
to reduce fuel consumption.
The vehicle chassis ride height is raised or
lowered according to the selected level
setting and to the vehicle speed. With increasing speed, the ride height is reduced
by up to approximately 0.4 in
(10 mm). With
decreasing speed, the ride height is again
raised to the selected vehicle level.
These height adjustments are so small that
you may not notice any change. G
Warning!
When you turn off the engine, the entire
vehicle is

lowered. You should therefore make
sure that no one is near the wheel housing or
under the vehicle when you turn off the
engine. Otherwise, parts of the individuals
body could be trapped.
! When you turn off the engine, the entire
vehicle is lowered. When parking, position
your vehicle in such a way that it will not
scrape against a curb, for example, when it
is lowered. Your vehicle could otherwise be
damaged.
i CL 63 AMG and CL 65 AMG only:
When you turn off the engine, the entire
vehicle is lowered by 0.2 in (5 mm).
Setting the vehicle level G
Warning!
To help avoid personal injury, keep hands and
feet away from wheel housing area, and stay
away from under the vehicle when lowering
the vehicle chassis. Driving systems
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The following vehicle level settings can be
selected when the vehicle is stationary and
the engine is running:
Level Use for Indicator
lamp
Normal
For driving on
normal roads. The
indicator
lamp is off.
Raised
For driving on
rough roads or
with snow chains
(Y page 396). The
indicator
lamp is on.
Select the “Raised” level setting only when
required by current driving conditions.
Otherwise the fuel consumption may
increase and/or the handling may be
impaired.
i
The selected setting remains stored in
memory, even when the engine is turned
off and restarted. X
Start the engine.
Selecting a higher level
If indicator lamp ; is off:
X Press vehicle level control switch :.
Indicator lamp ; comes on. The vehicle is
raised to a higher level. Selecting a normal level
If indicator lamp ; is on:
X
Press vehicle level control switch :.
Indicator lamp ; goes out. The vehicle is
adjusted to a normal level.
Suspension tuning The suspension tuning of the ABC system is
adjusted for each wheel individually and
depends on:
R
your driving style
R the road condition, such as bumps etc.
R your individual selection, sporty or
comfortable
R the vehicle loading
i The selected setting remains stored in
memory, even when the engine is turned
off and restarted. X
Start the engine.
Sporty suspension tuning
The firmer chassis and suspension setup in
sport driving mode provides enhanced road
contact. Select this mode when you prefer a
firmer chassis and suspension setup.
X When indicator lamp ; is off: Press
button :.
Indicator lamp ; comes on. The sporty
chassis and suspension setup is selected.
The message ABC Active Body Control
SPORT appears in the multifunction display. 320
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Comfort suspension tuning
Vehicle handling in comfort driving mode is
softer. Select this mode when you prefer a
more comfortable driving style.
X
When indicator lamp ; is on: Press
button :.
Indicator lamp ; goes out. The
comfortable chassis
and suspension setup
is selected.
The message ABC Active Body Control
COMFORT appears in the multifunction
display. All-wheel drive (4MATIC)
In vehicles with all-wheel drive (4MATIC),
both axles

are powered at all times when the
vehicle is being operated. The 4MATIC
improves traction in conjunction with the ESC
(Y page 59) and the Electronic Traction
System (ETS/4-ETS) (Y page 60). G
Warning!
If a drive wheel is spinning due to insufficient
traction:
R While driving off, apply as little throttle as
possible.
R While driving, ease up on the accelerator
pedal.
R Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The 4MATIC cannot prevent accidents
resulting from excessive speed.
! Do not

tow with one axle raised. Doing so
could damage the transfer case, which is
not covered by the Mercedes-Benz Limited
Warranty. All wheels must be on or off the
ground. Observe instructions for towing the
vehicle with all wheels on the ground. !
Only conduct
operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system and/or the transfer case which is
not covered by the Mercedes-Benz Limited
Warranty.
i In winter operation, the maximum
effectiveness of the 4MATIC is only
achieved with winter tires ( Y page 395) or
snow chains as required. Parktronic system
The Parktronic system is an electronic
parking aid with ultrasonic sensors designed
to assist

the driver during parking maneuvers.
The Parktronic system indicates the relative
distance between the vehicle and an obstacle
visually and audibly.
The Parktronic system is activated
automatically when
R you switch on the ignition
and
R you release the electronic parking brake
or
R you start the engine
and
R shift the automatic transmission into drive
position D, reverse gear R, or neutral
position N
The Parktronic system deactivates at speeds
above approximately 11 mph (18 km/h). At
lower speeds, the Parktronic system
activates again.
The Parktronic system also deactivates when
you shift the automatic transmission into
park position P or engage the electronic
parking brake and turn off the engine.
The Parktronic system monitors the
surroundings of your vehicle with six sensors Driving systems
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