2007 MERCEDES-BENZ CL-CLASS parking brake

406 Controls in detail
Driving systems
1Setting current or higher speed
Adjustment in 1 mph increments (to
the resistance point) or 5 mph
increments (past the resistance point)
(Canada: 1 km/h or 10 km/h)
2Setting current or lower speed
Adjustment in 1 mph increments (to
the resistance point) or 5 mph
increments (past the resistance point)
(Canada: 1 km/h or 10 km/h)
3Cancel cruise control
4Activating cruise control or resuming to
last set speedActivating cruise control
You can activate the cruise control if the
vehicle speed is above 20 mph (30 km/h).
In the following cases you cannot activate
the cruise control:

when you brake

the vehicle is secured with the elec-
tronic parking brake

when the automatic transmission is set
to positionP, R, or N

when ESP® is switched off
Warning!G
The cruise control brakes automatically so
that the set speed is not exceeded. The
brake pedal depresses when the cruise con-
trol engages the brakes.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the cruise control system.
Do not place your foot under the brake pedal
– your foot could become caught.
Keep in mind that the cruise control is a con-
venience system designed to assist the driv-
er during vehicle operation. The driver is and
must always remain responsible for the ve-
hicle’s speed and for safe brake operation.
iThe vehicle speed displayed in the speedom-
eter can briefly vary from the speed setting for
the cruise control system.
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408 Controls in detail
Driving systems
Setting a higher speed
You can increase the set speed in two
ways.Adjustment in 1 mph (Canada: 1 km/h)
increments
Briefly lift the cruise control lever up to
the resistance point in direction of
arrow1 (
page 406).
Release the cruise control lever.
The vehicle speed increases in incre-
ments of 1 mph (Canada: 1 km/h).
iThe cruise control switches off automatical-
ly when

you step on the brake pedal

the vehicle is secured with the electronic
parking brake
In this case, the cruise control speed seg-
ments in the multifunction display will go out
and no warning sounds.

the vehicle speed is below 20 mph
(30 km/h)

the ESP® is in operation or switched off with
the ESP® switch (page 71)

you set the automatic transmission toN
while driving
The cruise control speed segments in the
multifunction display will go out and an
acoustic warning sounds.
Observe additional messages in the
multifunction display that may appear.
!Setting the automatic transmission toN
while driving cancels the cruise control. Howev-
er, the automatic transmission should not be set
toN while driving except to coast when the vehi-
cle is in danger of skidding (e.g. on icy roads).
iDepressing the accelerator pedal does not
deactivate the cruise control. After a brief accel-
eration (e.g. for passing), the cruise control will
resume the last set speed.
Warning!G
If you increase the set speed, keep in mind
that it may take a brief moment until the ve-
hicle has reached the set speed.
Increase the set speed to a value that the
prevailing road conditions and legal speed
limits permit. Otherwise, sudden and unex-
pected acceleration of the vehicle could
cause an accident and/or serious injury to
you and others.
iThe set speed value is increased in 1 mph
(Canada: 1 km/h) increments each time you lift
the cruise control lever up to the resistance
point.
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418 Controls in detail
Driving systems
In the following cases you cannot activate
DISTRONIC Plus:

up to 2 minutes after starting the en-
gine

if the engine is switched off

if you step on the brake pedal while
driving

the vehicle is secured with the elec-
tronic parking brake

if the gear selector lever is in
positionP, R, or N

if ESP® is switched off

if the hood is open

if the driver’s door is open and the driv-
er has not fastened his or her seat belt

if the radar sensors are switched off
(
page 272).Switching on while driving
Tap DISTRONIC Plus lever up1 or
down2 until desired speed is set.
DISTRONIC Plus is switched on.
or
Pull DISTRONIC Plus lever briefly in di-
rection of arrow4 to call up speed
last set (
page 423).
DISTRONIC Plus is switched on.
Take your foot off the accelerator ped-
al.
Your vehicle adapts its speed to the ve-
hicle ahead, observing the set speed as
a maximum value.
iUnder 20 mph (30 km/h), you can only
switch on DISTRONIC Plus if the vehicle ahead of
you has been detected and is shown on the mul-
tifunction display. If you no longer see the vehi-
cle in front of you on the multifunction display
and if it is no longer detected because it has
changed lanes, for example, DISTRONIC Plus
switches off and you will hear a signal.
iIf you do not completely lift your foot off the
accelerator pedal, the message
“DISTRONIC PLUS override” appears on the mul-
tifunction display. The distance to a slower-driv-
ing vehicle will not be set. You will drive at the
speed you dictate by pressing the accelerator
pedal.
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420 Controls in detail
Driving systems
StoppingWhen DISTRONIC Plus detects that the ve-
hicle in front of you is stopping, the vehicle
brakes until it also stops.
Once DISTRONIC Plus has stopped your
vehicle and it is at a standstill, it remains
stationary; the brake pedal does not need
to be depressed.
Warning!G
DISTRONIC Plus’s braking effect is canceled
and the vehicle can start to roll if

DISTRONIC Plus is switched off using
the DISTRONIC Plus lever

you accelerate

the system or the power supply is mal-
functioning, e.g. due to battery failure

the electrical components in the engine
compartment or the fuses have been
manipulated

the battery is disconnected
Warning!G
Never get out of the vehicle while
DISTRONIC Plus is switched on!
DISTRONIC Plus must never be operated or
switched off by passengers or from outside
the vehicle.
DISTRONIC Plus is not a substitute for the
electronic parking brake and may not be
used for parking.
When you get out of the vehicle or switch off
the engine, deactivate DISTRONIC Plus and
secure the vehicle from rolling away by en-
gaging the electronic parking brake.
iAfter a short while, your vehicle is secured in
place by the electronic parking brake so that the
operating brake can be relieved of load.
iDepending on the following distance set us-
ing the distance setting switch on the DISTRON-
IC Plus lever, your vehicle will stop
approximately 13.1 ft away from the vehicle in
front of you.
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424 Controls in detail
Driving systems
DISTRONIC Plus deactivates automatically
when:

the vehicle is secured with the elec-
tronic parking brake

the vehicle speed is below 20 mph
(30 km/h) and no preceding vehicle is
detected

the ESP® is in operation or switched off
with the ESP® switch (page 71)

you set the automatic transmission
toP, R, or N while driving

the radar sensors are switched off
(
page 272)

the vehicle rolls backward
The segments in the multifunction display
go out, an acoustic signal sounds, and the
message “DISTRONIC PLUS Off” appears in
the multifunction display for approximately
5 seconds.If the vehicle has been stopped by
DISTRONIC Plus and a malfunction occurs
in the system, the message “Brake immedi-
ately” will appear on the multifunction dis-
play. Step on the brake immediately to
prevent the vehicle from rolling.
DISTRONIC Plus is then switched off and
the message disappears.
Warning!G
DISTRONIC Plus switches off and releases
the brakes when the vehicle decelerates be-
low the minimum speed of 20 mph
(30 km/h) by operation of the system un-
less DISTRONIC Plus detects a vehicle di-
rectly ahead of you. At that time the driver
must apply the brakes in order to reduce ve-
hicle speed further or bring it to a stop.
!Setting the automatic transmission toN
while driving cancels the DISTRONIC Plus. How-
ever, the automatic transmission should not be
set toN while driving except to coast when the
vehicle is in danger of skidding (e.g. on icy
roads).
iDepressing the accelerator pedal does not
deactivate DISTRONIC Plus. After brief accelera-
tion (e.g. for passing), DISTRONIC Plus will re-
sume to the last set speed.
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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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432 Controls in detail
Driving systems
Range of the sensorsFront sensors
Rear sensorsMinimum distance
If the system detects an obstacle in this
range, all the distance warning segments
illuminate and you hear a warning signal. If
the obstacle is closer than the minimum
distance, the actual distance may no long-
er be indicated by the system.
iTo function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the sen-
sors regularly, being careful not to scratch or
damage the sensors, see “Cleaning the Park-
tronic* system sensors” (
page 559).
Centerapprox. 40 in (100 cm)
Cornersapprox. 24 in (60 cm)
Centerapprox. 48 in (120 cm)
Cornersapprox. 32 in (80 cm)
!During parking maneuvers, pay special at-
tention to objects located above or below the
height of the sensors (e.g. street curbs, painted
posts, or trailer hitches etc.). The Parktronic sys-
tem will not detect such objects at close range
and damage to your vehicle or the object may
result.
Ultrasonic signals from outside sources (e.g.
truck air brakes, car wash, or jackhammers) may
impair the operation of the Parktronic system.
Centerapprox. 8 in (20 cm)
Cornersapprox. 6 in (15 cm)
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433 Controls in detail
Driving systems
Warning indicators
Visual signals indicate to the driver the rel-
ative distance between the sensors and an
obstacle.
The warning indicator for the front area is
in the instrument cluster. The warning indi-
cator for the rear area is on the roof liner in
the rear.
1Left side of the vehicle
2Right side of the vehicle
3Readiness indicators
Each warning indicator is divided into five
yellow and two red distance segments for
either side of the vehicle.
If yellow readiness indicators 3 under the
distance segments are lit, Parktronic is
ready to measure.The position of the gear selector lever de-
termines which warning indicators will be
activated.
As your vehicle approaches an object, one
or more distance segments will illuminate,
depending on the distance. When the sev-
enth distance segment illuminates, you
have reached the minimum distance.
Front area:
An intermittent acoustic warning will
sound as the first red distance segment
illuminates and a constant acoustic
warning lasting a maximum of
2 seconds will sound for the second
red distance segment. The signal is
canceled when the gear selector lever
is placed in position P.

Rear area:
An intermittent acoustic warning will
sound as the first red distance segment
illuminates and a constant acoustic
warning lasting a maximum of
2 seconds will sound for the second
red distance segment. The signal is
canceled when the gear selector lever
is placed in position D orP.
Gear selector
lever positionWarning indicator
DFront area activated
RFront and rear area
activated
NWith the electronic
parking brake engaged:
neither activated.
With the electronic
parking brake released:
front and rear area
activated.
PNeither activated
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