engine MERCEDES-BENZ CL-CLASS 2007 Manual PDF

423 Controls in detail
Driving systems
Adjustment in 5 mph
(Canada: 10 km/h) increments
Briefly press the DISTRONIC Plus lever
down past the resistance point in
direction of arrow2 (
page 416).
Release the DISTRONIC Plus lever.
The vehicle speed decreases in incre-
ments of 5 mph (Canada: 10 km/h).Setting to last stored speed (“Resume”
function)
Briefly pull the DISTRONIC Plus lever in
direction of arrow4 (
page 416).
The DISTRONIC Plus resumes to the
last set speed, or if no speed is stored,
it will set and store the current speed.
Remove your foot from the accelerator
pedal.Deactivating DISTRONIC Plus
There are several ways to deactivate the
DISTRONIC Plus system:
Briefly tip the DISTRONIC Plus lever in
the direction of arrow3 (
page 416).
or
Step on the brake pedal.
DISTRONIC Plus will be deactivated.
The last speed set will be stored into
memory.
iThe set speed value is decreased in 5 mph
(Canada: 10 km/h) increments each time you
press the DISTRONIC Plus lever down past the
resistance point.
iThe new speed is set and the vehicle will de-
celerate. Keep in mind that it may take a brief
moment until the vehicle has reached the set
speed.
Warning!G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could cause an accident and/or seri-
ous injury you and others.
iUpon switching off the engine, the last
stored speed is deleted.
iThe last stored set speed is deleted when
the engine is turned off.
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429 Controls in detail
Driving systems
Active Body Control (ABC)
The ABC system is an active, comput-
er-controlled system that hydraulically ad-
justs the suspension at all four wheels in
response to various driving situations. It
automatically selects the optimum suspen-
sion tuning and ride height for your vehicle.
Vehicle level controlYour vehicle automatically adjusts its ride
height to:

increase vehicle safety

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, ride height is re-
duced by up to approximately 0.4 in
(10 mm).

With decreasing speed, the ride height
is again raised to the selected vehicle
level.The following vehicle level settings can be
selected when the vehicle is stationary:
Select the “Raised” level setting only when
required by current driving conditions.
Otherwise:

Fuel consumption may increase.

Handling may be impaired.
Warning!G
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.
iThese height adjustments are so small that
you may not notice any change.
Level
NormalFor driving on normal roads.
The indicator lamp is off.
RaisedFor driving on rough roads or
with snow chains. The indica-
tor lamp is on.
iThe selected vehicle level setting remains
stored in memory even if the engine is turned off
and restarted.
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430 Controls in detail
Driving systems
1Vehicle level control switch
2Indicator lamp
Selecting a higher level
Start the engine.
If indicator lamp2 is off:
Press switch1.
Indicator lamp2 comes on. The vehi-
cle is raised to a higher level.Selecting a normal level
Start the engine.
If indicator lamp2 is on:
Press switch1.
Indicator lamp2 goes out. The vehicle
is adjusted to a normal level.
Suspension tuning
The suspension tuning is set according to:

your driving style

road surface conditions

the vehicle loading

your choice of suspension styleThe program mode selector switch (C/S)
(
page 399) is used to adjust the suspen-
sion tuning:
Start the engine.
Select the desired driving program.
Driving programSuspension tuning
CComfortcomfortable
(default setting)
SSportsporty
for dynamic driving
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431 Controls in detail
Driving systems
Parktronic system*
The Parktronic system is an electronic
parking aid with ultrasonic sensors that
helps you while parking.
It visually and audibly indicates the relative
distance between the vehicle and an ob-
stacle.
The Parktronic system is automatically ac-
tivated when you switch on the ignition, re-
lease the electronic parking brake or start
the engine and engage gear D, R or N.The Parktronic system deactivates at
speeds over approximately 11 mph
(18 km/h). At lower speeds the Parktronic
system turns on again.
The Parktronic system also deactivates
when you set the automatic transmission
to P or secure the vehicle in place with the
electronic parking brake and switch off the
engine.
The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
1Sensors in the front bumper (Only visi-
ble without DISTRONIC Plus*)
Warning!G
Parktronic is a supplemental system. It is
not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always remains with the driver.
Warning!G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.
!Special attention must be paid to objects
with smooth surfaces or low silhouettes (e.g.
trailer couplings, painted posts, elevated cross-
bars or road curbs). Such objects may not be
detected by the system and can damage the
vehicle.
!The operational function of the Parktronic
system can be affected by dirty sensors, espe-
cially at times of snow and ice.
Make sure that the area on the bumpers around
the sensors is free of dirt, ice and/or slush,
otherwise the Parktronic system may not
function properly, see “Cleaning the Parktronic*
system sensors” (
page 559).
iInterference caused by other ultrasonic sig-
nals (e.g. working jackhammers, car wash, or the
air brakes of trucks) can cause the system to
send erratic indications, and should be taken
into consideration.
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436 Controls in detail
Driving systems
When travelling in Canada in a vehicle not
registered in Canada, you must switch off
the radar sensor system* (
page 272).
Canadian law does not permit the use of
the radar sensor system* (
page 272) for
vehicles from outside of Canada. When you
switch off the radar sensor system*, the
following functions are deactivated:

BAS Plus* (page 67)

DISTRONIC Plus* (page 411)

Park Assist

PRE-SAFE® Brake* (page 73)
It visually and audibly indicates the relative
distance between the vehicle and an
obstacle.
Park Assist is automatically activated
when the engine is running and the trans-
mission is in position D, R or N.
The Park Assist system deactivates at
speeds over approximately 11 mph
(18 km/h). At lower speeds the Parktronic
system turns on again.Park Assist is also switched off when you
set the automatic transmission to P or
switch off the engine.
While the transmission is in position N,
Park Assist is switched off if you secure the
vehicle in place with the electronic parking
brake.
The Park Assist system monitors the sur-
roundings of your vehicle with four sensors
in the front bumper and two sensors in the
rear bumper.
Range of the sensors
The sensors of the Park Assist system are
integrated in the front and rear bumpers.
Make sure that the bumpers are clear of
dirt, ice and slush in the area of the sen-
sors, as otherwise, Park Assist may not
function properly, see “Cleaning the Park
Assist* system sensors” (
page 559).
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453 Controls in detail
Automatic climate control
Automatic climate control
Automatic climate control panel
Item
1AUTO mode for air distribution and
volume, left
2Temperature control, left
3Manual fan speed adjustment, left
4Front defroster
Item
5Air recirculation
6Automatic climate control on/off
7Residual engine heat and ventilation
(REST)
8Rear window defroster
Item
9Manual fan speed adjustment, right
aTemperature control, right
bAUTO mode for air distribution and
volume, right
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454 Controls in detail
Automatic climate control
The automatic climate control is operation-
al whenever the engine is running. You can
operate the climate control system in ei-
ther the automatic or manual mode. The
system cools or heats the interior depend-
ing on the selected interior temperature
and the current outside temperature.
It can only function optimally when you are
driving with the windows and the tilt/slid-
ing sunroof closed.
It is possible to completely deactivate the
climate control system (
page 455). Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.The following automatic climate control
functions can be operated via COMAND:
iIf you have the air distribution and air vol-
ume automatically controlled, you can adjust the
temperature, footwell temperature and air flow.
The following basic settings are recommended:

Automatic air distribution control
(
page 453)

Temperature: 72°F (22°C) (page 456)

Footwell temperature: 0 (page 249)

Air flow: focused (page 249)
Warning!G
Follow the recommended settings for heat-
ing and cooling given on the following pages
and in the “COMAND automatic climate
control” section (
page 244). Otherwise
the windows could fog up, impairing visibili-
ty and endangering you and others.
iSevere conditions (e.g. strong air pollution)
may require replacement of the filter before its
scheduled interval. A clogged filter will reduce
the air volume to the interior.
If the vehicle interior is hot, ventilate the interior
before driving off, see “Summer opening fea-
ture” (
page 376). The automatic climate con-
trol will then adjust the interior temperature to
the set value much faster.
Keep the air intake grille in front of the wind-
shield free of snow, leaves, sticks, and any other
debris.
Do not obstruct air volume by placing objects on
the air volume-through exhaust slots below the
rear window.
FunctionPage
Temperature245
Air distribution246
Air volume246
Switching off cooling (“ACOFF”)247
Central climate control (“Mono”)248
Footwell temperature249
Air flow from air vents249
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458 Controls in detail
Automatic climate control
Maximum cooling MAXCOOL (USA only)
If U is selected on both the left and
right side and there is a high demand for
cooling, the display “MAXCOOL” appears
in the COMAND display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof are closed).
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving in a
tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
Activating: Press button,
(
page 453) up or down.
The indicator lamp on the button
comes on.Warning!G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.
iIf the rear window defroster switches off too
soon and the indicator lamp goes out, this indi-
cates that too many electrical consumers are op-
erating simultaneously and the load on the
battery is reducing available voltage. The system
responds automatically by deactivating the rear
window defroster.
iMaximum cooling MAXCOOL is only avail-
able when the engine is running.
Warning!G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 247) is activated, or
press button;.
iThe air recirculation mode is activated auto-
matically at high outside temperatures.
The indicator lamp on button, is not lit when
the air recirculation mode is automatically acti-
vated.
A quantity of outside air is added when the cool-
ing demand is not at maximum.
If the air conditioning has been turned off
(
page 247) or the outside temperature is be-
low 41°F (5°C), the air recirculation mode will
not switch on automatically.
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460 Controls in detail
Automatic climate control
Convenience opening: Press
button
, for approximately
2 seconds.
The side windows and/or tilt/sliding
sunroof will return to their previous po-
sition. You can release button
,
once the opening procedure has be-
gun. The windows and tilt/sliding sun-
roof continue opening until they have
reached their previous positions. The
indicator lamp on the button goes out.
The air recirculation mode is deactivat-
ed.
Residual engine heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior.
This feature makes use of the residual heat
produced by the engine.Activating
Switch off the ignition (page 336).
Press buttonT (page 453) up or
down.
The indicator lamp on the button
comes on.
Deactivating
Press buttonT (page 453) up or
down.
The indicator lamp on the button goes
out.
iIf you switch on the residual heat function
when outside temperatures are high, only the
ventilation will be switched on.
iRegardless of the selected air volume, the
blower operates at low speed when heating. In
case of ventilation the blower operates at higher
speed.
iHow long the system will provide heating de-
pends on

the coolant temperature

the temperature set by the operator
iThe residual heat is automatically turned off:

when the ignition is switched on

after approximately 30 minutes

if the battery voltage drops

if the coolant temperature is too low

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476 Controls in detail
Useful features
Sun visors
1Sun visor
2Vanity mirror cover
3Vanity mirror lamp
4Document holderGlare from front
Swing sun visor1 down.
Glare from front and sides
Disengage sun visor1 from the
mounting.
Pivot sun visor1 to the side.
Vanity mirror in sun visor
To use vanity mirror, lift up cover2.
Vanity mirror lamp3 comes on.
Document holder
You can use the plastic tab of document
holder4 to hold admission tickets, park-
ing passes, or similar items in place.
Ashtray
1Button for disengaging ashtray
2Cover plate
Warning!G
Do not use the vanity mirror while driving.
Keep the vanity mirrors in the sun visors
closed while vehicle is in motion. Reflected
glare can endanger you and others.!Close vanity mirror cover2 (if open) before
you disengage sun visor1 from the mounting
and pivot it to the side.
iIf you disengage sun visor1 from the
mounting, vanity mirror lamp2 will switch off.
Warning!G
Remove ashtray only with vehicle standing
still. Engage the electronic parking brake to
secure vehicle from movement. Set auto-
matic transmission toP. With the automatic
transmission set toP, turn off the engine.
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