brake sensor MERCEDES-BENZ CL CLASS 2010 User Guide

:
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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R
the radar sensors are switched off
R you pull the DISTRONIC PLUS lever in
direction of arrow ? (Y page 309) for
driving off and the front passenger or a rear
passenger door is open
The marker for the set speed on the
speedometer dial go out, an acoustic signal
sounds, and the message DISTRONIC PLUS
Off appears in the multifunction display for
approximately 5 seconds. G
Warning!
The DISTRONIC PLUS switches off and
releases the brakes when the vehicle
decelerates below the minimum speed of
20 mph (30 km/h) by operation of the system
unless the DISTRONIC PLUS detects a vehicle
directly ahead of you. At that time the driver
must apply the brakes in order to reduce
vehicle speed further or bring it to a stop.
Depressing the accelerator pedal does not
deactivate the DISTRONIC PLUS. After a brief
acceleration (e.g. for passing), the
DISTRONIC PLUS will resume the last set
speed.
Setting the following distance in
DISTRONIC PLUS You can set the specified following distance
for the DISTRONIC PLUS by varying the time
setting between 1.0 and 2.0 seconds. Using
this time setting and the current speed of
your vehicle, the DISTRONIC PLUS calculates
and sets the required following distance to
the preceding vehicle.
The set distance will be shown in the
multifunction display.
G
Warning!
It is up to the driver to exercise discretion to
select the appropriate setting given road
conditions, traffic, driver’s preferred driving
style and applicable laws and driving
recommendations for safe following distance. X
Increasing distance: Turn distance
setting switch : in direction of arrow ;.
Increasing the distance setting tells the
DISTRONIC PLUS to maintain a greater
following distance to the preceding vehicle.
X Decreasing distance: Turn distance
setting switch : in direction of arrow =.
Decreasing the distance setting tells the
DISTRONIC PLUS to maintain a shorter
following distance to the preceding vehicle.
Driving with DISTRONIC PLUS This section describes a number of driving
situations where special precaution is
required on the part of the driver. Be prepared
to brake in such situations. Braking will
deactivate the DISTRONIC PLUS system.
G
Warning!
The DISTRONIC PLUS works to maintain the
speed selected by the driver unless a moving
obstacle proceeding directly ahead of it in the
same travel direction is detected (e.g.
following another vehicle ahead of you at your
set distance).
This means that:
R Your vehicle can pass another vehicle after
you have changed lanes.
R While in a sharp turn or if the preceding
vehicle is in a sharp turn, the DISTRONIC
PLUS could lose sight of the preceding
vehicle. Your vehicle could then accelerate
to the previously selected speed. Driving systems
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The DISTRONIC PLUS regulates only the
distance between your vehicle and those
directly ahead of it. It may not register
stationary objects in the road, e.g.:
R
a stopped vehicle in a traffic jam
R a disabled vehicle
R an oncoming vehicle
The driver must always be alert, observe all
traffic and intercede as required by means of
steering or braking the vehicle. G
Warning!
The DISTRONIC PLUS should not be used in
snowy or icy road conditions.
The most likely cause for a malfunctioning
system is a dirty sensor (located in the hood
grille and in the bumper), especially at times
of snow and ice or heavy rain.
In such a case, the DISTRONIC PLUS will
switch off, and the message DISTRONIC
PLUS Currently Unavailable See
Oper. Manual appears in the multifunction
display.
For cleaning and care of the sensors, see
(Y page 406).
i If the message DISTRONIC PLUS
Currently Unavailable See Oper.
Manual disappears during driving and the
last speed stored flashes for approximately
5 seconds, the dirt (e.g. slush) has
dissolved; the DISTRONIC PLUS is available
again.
Another cause might be that the radar
sensors have been manually switched off in
the instrument cluster control system. Please
verify that the radar sensors are switched on
(Y page 216). Turns and bends In turns or bends, the DISTRONIC PLUS may
not detect a preceding vehicle, or it may
detect one too soon. This may cause your
vehicle to brake late or unexpectedly.
Offset driving
A vehicle traveling in your lane but offset from
your direct line of travel may not be detected
by the DISTRONIC PLUS. There will be
insufficient distance to the preceding vehicle.
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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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in the front bumper and four sensors in the
rear bumper.
Example illustration, sensors in the front bumper
To function properly, sensors
: must be free
of dirt, ice, snow and slush. Clean
sensors : regularly. Be careful not to
scratch or damage sensors :, see “Cleaning
the driving systems sensors” (Y page 406). G
Warning!
The 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. G
Warning!
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured.
! Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts,
elevated crossbars or road curbs). Such
objects may not be detected by the system
and can damage the vehicle.
During parking maneuvers, pay special
attention to objects located above or below
the height of the sensors (e.g. street curbs,
painted posts, or trailer hitches etc.). The
Parktronic system 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.
Range of the sensors Front sensors
Center approx. 40 in (100 cm)
Corners approx. 24 in (60 cm)
Rear sensors
Center approx. 48 in (120 cm)
Corners approx. 32 in (80 cm)
Minimum distance
Center approx. 8 in (20 cm)
Corners approx. 6 in (15 cm)
If the Parktronic system detects an obstacle
in this range, all the distance warning
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signal. If the obstacle is closer than the
minimum distance, the actual distance may
no longer be indicated by the Parktronic
system.
Warning indicators
Visual signals indicate the relative distance
between the sensors and an obstacle.
Front area warning indicators
Rear area warning indicators
Each warning indicator is divided into five
yellow and two red distance segments for left
side
: and right side ; of the vehicle. The
Parktronic system is ready to measure when
the yellow readiness indicators = are
illuminated.
The current transmission position determines
which warning indicator will be activated. Current
transmission
position Warning indicator
D
Front area activated
R
Front and rear area
activated
N
With the electronic
parking brake
engaged: neither
activated
With the electronic
parking brake
released: front and
rear area activated
As your vehicle approaches an object, one or
more distance segments will illuminate,
depending on the distance. When the seventh
distance segment illuminates, you have
reached the minimum distance.
R
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 automatic transmission is shifted
into park position P.
R 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 automatic transmission is shifted
into drive position D or park position P.
Switching the Parktronic system on/
off The Parktronic system switches on
automatically when the ignition is switched
on. Driving systems
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X
Switching off: Press Parktronic
switch :.
Indicator lamp ; comes on.
X Switching on: Press Parktronic switch :
again.
Parktronic system malfunction There is a malfunction in the Parktronic
system, if only the red distance segments
illuminate and an acoustic warning sounds.
The Parktronic system will switch off
automatically after 20 seconds and indicator
lamp
; in Parktronic switch : comes on.
X Have the Parktronic system checked at an
authorized Mercedes-Benz Center as soon
as possible.
If only the red distance segments illuminate
and no acoustic warning sounds, the
Parktronic system sensors are dirty (e.g. dirt,
ice, snow and slush). Another cause could be
interference from other radio or ultrasonic
signals (e.g. truck air brakes, car wash, or
jackhammers). The Parktronic system will
switch off automatically after 20 seconds and
indicator lamp ; in Parktronic switch :
comes on.
X Switch off the ignition.
X Clean the Parktronic system sensors
(Y page 406).
X Switch on the ignition.
or
X Check the Parktronic system operation at
another location to rule out interference
from outside radio or ultrasonic signals. Park Assist
G
Warning!
The Park Assist 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. G
Warning!
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 crossbars or road curbs). Such
objects may not be detected by the system
and can damage the vehicle.
i USA only:
This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
sensor is intended for use in an automotive
radar system only. Removal, tampering, or
altering of the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference, and
2. this device must accept any interference received, including
interference that may cause undesired
operation of the device.
Removal, tampering, or altering of the
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permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
When traveling in Canada in a vehicle not
registered in Canada, you must switch off the
radar sensor system ( Y page 216). Canadian
law does not permit the use of the radar
sensor system for vehicles from outside of
Canada. When you switch off the radar sensor
system, the following functions are
deactivated:
R Park Assist
R BAS PLUS (Y page 57)
R PRE-SAFE ®
Brake (Y page 62)
R DISTRONIC PLUS (Y page 304)
R Advanced Parking Guidance ( Y page 327)
R Blind Spot Assist (Y page 335)
! The operational function of the Park
Assist can be affected by dirty sensors,
especially 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 Park Assist may not
function properly.
For cleaning the driving systems sensors, see
(Y page 406).
! High-frequency sources such as toll
stations, speed measuring systems, etc.
can cause the Park Assist to malfunction.
You can switch off the Park Assist using the
Park Assist button or switch off the radar
sensors with the instrument cluster control
system to prevent possible malfunction.
The Park Assist is an electronic parking aid
with radar sensors that helps you while
parking. It visually and audibly indicates the
relative distance between the vehicle and an
obstacle.
The Park Assist is automatically activated
when the engine is running and the automatic transmission is in drive position D, reverse
gear
R or neutral position N.
The Park Assist deactivates at speeds over
approximately 10 mph (16 km/h). At lower
speeds the Park Assist turns on again.
The Park Assist is also switched off when you
set the automatic transmission into park
position P or switch off the engine.
While the automatic transmission is in neutral
position N, the Park Assist is switched off if
you secure the vehicle in place with the
electronic parking brake.
The Park Assist monitors the surroundings 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 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 sensors, as otherwise, the
Park Assist may not function properly, see
(Y page 406). Driving systems
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i
The sensors have a broad detection
range. Therefore, the Park Assist may also
issue warnings due to detected obstacles
on the ground, for example:
R Sewer canal covers
R Rails
R Bumps
R Gutters
Warnings may also be issued due to
obstacles that are moving up quickly, for
example rolling garage doors.
Front sensors Center approx. 40 in (100 cm)
Corners approx. 24 in (60 cm)
Rear sensors
Center approx. 50 in (125 cm)
Corners approx. 24 in (60 cm)
!
While parking, pay particular attention to
objects over or underneath the sensors,
e.g. flower boxes, an elevated crossbar or
a trailer tow hitch. The Park Assist does not
detect such nearby objects. You could
otherwise damage the vehicle or the
objects.
Warning indicators Visual signals indicate to the driver the
relative distance between the sensors and an
obstacle.
Front area warning indicators Rear area warning indicators
Each warning indicator is divided into five
yellow and two red distance segments for
left : and right side ; of the vehicle. The
Park Assist is ready to measure when the
yellow readiness indicators
= are
illuminated.
The current transmission position determines
which warning indicators will be activated. Current
transmission
position Warning indicator
D
Front area activated
R
Front and rear area
activated
N
With the electronic
parking brake
engaged: neither
activated.
With the electronic
parking brake
released: front and
rear area activated.
As your vehicle approaches an object, one or
more distance segments will illuminate,
depending on the distance. When the seventh
distance segment illuminates, you have
reached the minimum distance.
Front area:
As soon as the first red distance segment
illuminates, you will hear an intermittent
warning tone for approximately 2 seconds.326
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Once the second red distance segment
illuminates, you will hear a continuous
warning tone. You have reached the minimum
distance. The signal is canceled when the
automatic transmission is in park position P
or neutral position N with the electronic
parking brake engaged.
Rear area:
As soon as the first red distance segment
illuminates, you will hear an intermittent
warning tone for approximately 2 seconds.
Once the second red distance segment
illuminates, you will hear a continuous
warning tone. You have reached the minimum
distance. The signal is canceled when the
automatic transmission is in drive position
D,
park position P, or neutral position N with the
electronic parking brake engaged.
i During strong rainfall, the warning
indicators and warning tones may be
triggered, for example, by water splashing
into the area of the sensors.
Collision warning The Park Assist can detect obstacles from a
considerable distance. If you drive in reverse
towards an obstacle, you will hear a warning
tone. You must then brake in order to avoid a
collision. The warning tone for a collision will
not sound when the vehicle is at a standstill
very close to the obstacle. In this case, you
will hear a corresponding tone for the warning
indicator in the rear area.
i
During strong rainfall, the collision
warning may be triggered, for example, by
water splashing into the area of the
sensors.
Switching Park Assist on/off The Park Assist can be switched off manually.
i
When the indicator lamp is on, the Park
Assist is switched off. X
Switching off: Press Park Assist
button :.
Indicator lamp ; comes on.
X Switching on: Press Park Assist
button : again.
Indicator lamp ; goes out.
The Park Assist is automatically switched on
when the ignition and radar sensors
(Y page 216) are switched on. Advanced Parking Guidance
The Advanced Parking Guidance is an
electronic parking aid equipped with radar
sensors. The radar sensors scan the area on
both sides of vehicle. When a suitable parking
space is found, it is indicated by a parking
space symbol in the multifunction display.
You will receive steering instructions for
parking in that space. G
Warning!
The Advanced Parking Guidance is only an aid
and may display parking spaces that are not
suitable for parking such as
R no-parking zones
R parking space with unsuitable road/ground
surface
R driveways
R entrances/exits
The Advanced Parking Guidance only shows a
representation of the parking space in the
multifunction display as parking space is first Driving systems
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