sensor MERCEDES-BENZ CLS 2014 Owner's Guide

Problems with PARKTRONIC
ProblemPossible causes/consequences andSolutions
Only the red segments
in the PARKTRONIC
warning displaysare lit.
You also hearawarning
tone for approximately
two seconds.
PARKTRONIC is then
deactivated and the
indicator lamp on the
PARKTRONIC button
lights up.
PARKTRONIC has malfunctioned and has switched off.
XIf problems persist, have PARKTRONIC checked ataqualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displaysare lit.
PARKTRONIC is then
deactivated.
The PARKTRONIC sensors are dirty or there is interference.
XCleanthe PARKTRONIC sensors (Ypage 315).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves.
XSee if PARKTRONIC functions inadifferent location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle.Aparking symbol
indicatesasuitable parking space. Active
steering interventioncan assistyou during
parking. You may also use PARKTRONIC
(Ypage 193).
Important safety notes
Active Parking Assist is merely an aid. It is not
areplacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exitingaparking space. Make sure that
no persons, animals or objectsare in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable.
GWARNING
The vehicle swings out when parking and in
doing so could cross into the opposite lane.
This could result inacollision with another
road user. There isarisk of an accident.
Pay attention to other road users when
parking. Stop the vehicle if necessary or
cancel the Active Parking Assist parking
procedure.
!If unavoidable, you should drive over
obstacles such as curbs slowly and not at
asharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
196Driving systems
Driving and parking

Problems with Night View Assist Plus
ProblemPossible causes/consequences andSolutions
The picture quality of
Night View Assist Plus
has deteriorated.
The windshield wipers are smearing the windshield.
XReplace the wiper blades (Ypage 126).
The windshield is smeared after the vehicle has been cleaned in a
car wash.
XCleanthe windshield (Ypage 314).
There is windshield chip damage in the camera's field of vision.
XReplace the windshield.
The windshield is fogged up on the inside.
XDefrost the windshield (Ypage 140).
The windshield is iced up.
XDe-ice the windshield (Ypage 139).
There is dirt on the inside of the windshield.
XCleanthe inside of the windshield (Ypage 314).
Lane Tracking package
General notes
The Lane Tracking package consistsofBlind
Spot Assist (Ypage 207) and Lane Keeping
Assist (Ypage 209).
Blind Spot Assist
General notes
Blind Spot Assist usesaradar sensor system
to monitor the areas on both sides of your
vehicle. It supports you fromaspeed of
approximately 20 mph(30km/h).Awarning
displayinthe exteriormirrors draws your
attention to vehicles detected in the
monitored area. If you thenswitchonthe
correspondingturnsignal to change lanes,
you will also receiveavisual and audible
collision warning. BlindSpot Assist uses
sensors in the rear bumper for monitoring
purposes.
For BlindSpot Assist to assist you, the radar
sensor system must be operational.
Important safety notes
GWARNING
BlindSpot Assist does not reactto:
Rvehicles overtaken too closely on the side,
placingtheminthe blind spot area
Rvehicles which approach withalarge speed
differential and overtake your vehicle
Asaresult, Blind Spot Assist may not give
warnings in such situations. There isarisk of
an accident.
Always observe the traffic conditions
carefully, and maintainasafe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving. Always ensure that there is
sufficient distance to the side for other road
users and obstacles.
iUSA only:
Driving systems207
Driving and parking
Z

This device has been approved by the FCC
asa"Vehicular RadarSystem". The radar
sensor is intended foruse in an automotive
radar system only. Removing, tampering
with, or altering 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.
Monitoring range of the sensors
In particular, the detection of obstacles can
be impaired if:
Rdirt on the sensors or anything else
covering the sensors
Rpoor visibility, e.g. due to fog, heavy rain,
snow or spray
Rnarrow vehicles, e.g. motorcycles or
bicycles
Rthe road has very wide lanes
Rthe road has narrow lanes
Ryou are not driving in the middle of the lane
Rthere are barriers or similarlane borders
Vehiclesinthemonitoringrangeare then not
indicated.
BlindSpotAssist monitors the area up to
10 ft (3 m) behind your vehicle and directly
next to your vehicle, as shown in the diagram.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not
driving in the middle of their lane. This may
be the case if there are vehicles driving at the
inner edge of their lanes.
Due to the nature of the system:
Rwarnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
Rthe warning is canceled when driving for an
extended period next to long vehicles, such
as trucks.
The two radar sensors for Blind Spot Assist
are integrated into the sides of the rear
bumper. Make sure that the bumper is free of
dirt, ice or slush in the vicinity of the sensors.
The sensors must not be covered, for
example by cycle racks or overhanging loads.
Followingasevere impact or in the event of
damage to the bumpers, have the function of
the sensors checked ataqualified specialist
workshop. Blind Spot Assist may otherwise
not work properly.
Indicator and warning display
Yellowindicator lamp/red warning lamp
Active Blind Spot Assist is not active at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
When Blind Spot Assist is activated, indicator
lampin the exterior mirrors lights up
yellow at speeds of up to 20 mph(30km/h).
At speeds above 20 mph (30 km/h) the
208Driving systems
Driving and parking

Active Driving Assistance package
Generalnotes
The Active DrivingAssistance package
consistsofDISTRONICPLUS(Ypage 177),
Active Blind Spot Assist(Ypage 211) and
Active LaneKeepingAssist(Ypage 214).
Active Blind Spot Assist
Generalnotes
Active Blind Spot Assistusesaradar sensor
system, pointed toward the rear of the
vehicle, to monitor the area to the sides of the
vehicle which the driver is unable to see. A
warning displayinthe exterior mirrors draws
your attention to vehicles detected in the
monitored area. If you then switch on the
corresponding turn signal to change lane, you
will also receive an optical and audible
warning. Ifarisk of lateral collision is
detected, corrective braking may help you
avoidacollision. Beforeacourse-correcting
brake application, Active Blind Spot Assist
evaluates the space in the direction of travel
and at the sides of the vehicle. For this, Active
Blind Spot Assist uses radar sensors which
are pointed in the direction of travel.
Active Blind Spot Assist supports you from a
speed of approximately 20 mph (30 km/h).
For Active Blind Spot Assist to assist you
when driving, the radar sensor system must
be:
Ractivated(Ypage 232)
Roperational
Important safety notes
Active Blind Spot Assist is only an aid and is
notasubstitute for attentive driving.
GWARNING
Active Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach withalarge speed
differential and overtakeyour vehicle
Asaresult, Active Blind Spot Assist may
neither give warnings nor intervene in such
situations. There isarisk of an accident.
Always observe the traffic conditions
carefully, and maintainasafe lateral distance.
iUSA only:
This device has been approved by the FCC
asa"Vehicular RadarSystem". The radar
sensor is intended foruse in an automotive
radar system only. Removing, tampering
with, or altering 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.
iCanada only: This device complies with
RSS-210ofIndustry Canada.Operation is
subject to the following two conditions:
1. This device may not cause harmful
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
device will void any warranties, and is not
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.
Radarsensors
The Active Blind Spot Assist radar sensors are
integrated into the front and rear bumpers
and behindacover in the radiator grill. Make
sure that the bumpers and the cover in the
radiator grill are free of dirt, ice or slush. The
rear sensors must not be covered, for
example by cycle racks or overhanging cargo.
Followingasevere impact or in the event of
damage to the bumpers, have the function of
the radar sensors checked ataqualified
Driving systems211
Driving and parking
Z

specialist workshop. Active Blind Spot Assist
may otherwise no longer work properly.
Monitoring area
GWARNING
Active Blind Spot Assist does not detect all
traffic situations and road users. There is a
risk of an accident.
Always make sure that there is sufficient
distance on the side for other traffic or
obstacles.
Active Blind Spot Assist monitors the area up
to 10 ft (3.0 m) behind your vehicle and
directly next to your vehicle, as shown in the
diagram.
The detection of obstacles can be impaired in
the case of:
Rdirt on the sensors or anything else
covering the sensors
Rpoor visibility, e.g. due to rain, snow or
spray
Vehicles in the monitoring range are then not
indicated or indicated withadelay.
Active Blind Spot Assist may not detect
narrow vehicles, such as motorcycles or
bicycles, or may only detect them too late.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not
driving in the middle of their lane. This may
be the case if there are vehicles at the edge
of their lane.
Due to the nature of the system:
Rwarnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
Rthe warning is canceled when driving for an
extended period next to long vehicles, such
as trucks.
Indicator and warning display
Yellowindicator lamp/red warning lamp
Active Blind Spot Assist is not active at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
When active Blind Spot Assist is activated,
indicator lampin the exterior mirrors lights
up yellow at speeds of up to
20 mph(30 km/h). At speeds above 20 mph
(30 km/h), the indicator lamp goes out and
active Blind Spot Assist is operational.
Ifavehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
20 mph (30 km/h), warning lampon the
corresponding side lights up red. This warning
is always given whenavehicle enters the
blind spot monitoring range from behind or
from the side. When you overtakeavehicle,
the warning only occurs if the difference in
speed is less than7mph (12km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event,Active Blind
Spot Assist is no longer active.
212Driving systems
Driving and parking

The brightness of the indicator/warning
lamps is adjusted automatically accordingto
the ambient light.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes andavehicle is detected in the side
monitoring range, you receiveavisual and
acoustic collision warning. You then hear a
double warning toneand red warning
lampflashes. If the turn signal remains on,
detected vehicles are indicated by the
flashing of red warning lamp.There are no
further warning tones.
Course-correcting brake application
GWARNING
Acourse-correctingbrake application cannot
alwayspreventacollision. There isarisk of
an accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makesacourse-correcting brake
application. Always maintainasafe distance
at the sides.
If Active Blind Spot Assist detectsarisk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision.
Ifacourse-correcting brake application
occurs, red warning lampflashes in the
exterior mirror andadual warning tone
sounds. In addition, the display shown in the
lower image appears in the multifunction
display.
In very rare cases, the system may make an
inappropriate brake application. An
inappropriate course-correcting brake
application may be interrupted at any time if
you steer slightly in the opposite direction or
accelerate, for example.
The course-correcting brake application is
available in the speed range between
20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, oracourse-
correcting brake application adapted to the
driving situation occurs if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your
vehicle.
Ravehicle approaches you too closely at the
side.
Ryou have adoptedasporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Radriving safety system intervenes, e.g.
ESP®or PRE-SAFE®Brake.
RESP®is switched off.
Raloss of tire pressure oradefectivetire is
detected.
Switching on Active Blind Spot Assist
XMake sure that the radar sensor system
(Ypage 232) and Active Blind Spot Assist
(Ypage 228) are activated in the on-board
computer.
XTurn the SmartKey to position2in the
ignition lock.
Warning lampsin the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Driving systems213
Driving and parking
Z

Active LaneKeeping Assist
Generalnotes
Active LaneKeepingAssistmonitorsthe area
in front of your vehicle by means of
cameraat the top of the windshield. Active
Lane Keeping Assist detectslane markings on
theroad and warnsyou before you leave your
lane unintentionally. If you do notreact to the
warning,alane-correctingapplication of the
brakes can bring the vehicle back intothe
original lane.
If you have chosen the functionDisplay
Unit Speed-/Odometer:(Ypage 229)and
selected the display unitkmin the on-board
computer, Active Lane Keeping Assist
supports you fromaspeed of 60 km/h. If
milesis selected as the display unit, the
assistancerange begins at 40 mph.
For Active Lane Keeping Assist to assist you
when driving, the radar sensor system must
be operational.
Important safetynotes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accidentnor override the laws of
physics. Active Lane Keeping Assist cannot
take into account road, weather or traffic
conditions. It cannot detect possible road and
traffic conditions. Active Lane Keeping Assist
is only an aid. You are responsible for the
distance to the vehicle in front,for vehicle
speed, for braking in good time and for
staying in your lane.
Active Lane Keeping Assist cannot
continuously keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
Rgive an unnecessary warning and then
makeacourse-correcting brake application
to the vehicle
Rnot giveawarning or intervene
There isarisk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you.
Terminate the intervention inanon-critical
driving situation.
The system may be impaired or may not
function if:
Rthere is poor visibility, e.g. due to
insufficient illumination of the road, or due
to snow, rain, fog or spray
Rthere is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
Rthe windshield is dirty, fogged up, damaged
or covered, for instance byasticker, in the
vicinityofthe camera
Rthe radar sensors in the front or rear
bumper or in the radiator grill are dirty, e.g.
due to snow
Rthere are no, several or unclear lane
markings foralane, e.g. in areas with road
construction work
Rthe lane markings are worn away,dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
Rthe lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
214Driving systems
Driving and parking

XPress thebutton.
The currentselection is displayed.
XTo activate/deactivate:press the
button again.
If theBlind Spot Assist Sensors
DeactivatedorAct. Blind Spot Asst.
Sensors Deactivatedmessage appears,
the radar sensor system is deactivated.
XSwitchonthe radar sensor system
(Ypage 232).
For further information about Blind Spot
Assist,see (Ypage 207).
For further information about Active Blind
Spot Assist,see (Ypage 211).
Activating/deactivating Lane Keeping
Assist
XPress\noron the steering wheel
to select theDriveAssistmenu.
XPress theorbutton to select
Lane Keep. Asst.
XPress thebutton.
The currentselection is displayed.
XPressto confirm.
XPress theorbutton to setOff,
StandardorAdaptive.
XPress thebutton to save the setting.
For further information about Lane Keeping
Assist,see (Ypage 209).
For further information about Active Lane
Keeping Assist,see (Ypage 214).
Maintenance menu
In theServ.menu, you have the following
options:
RCalling up display messages in message
memory (Ypage 237)
RRestarting the tire pressure loss warning
system (Ypage 342)
RCheckingthe tire pressure electronically
(Ypage 342)
RCalling up the servicedue date
(Ypage 310)
Settings menu
Introduction
In theSett.menu, you have the following
options:
RChanging the instrument cluster settings
(Ypage 229)
RChanging the light settings (Ypage 230)
RChanging the vehicle settings
(Ypage 232)
RChanging the convenience settings
(Ypage 233)
RRestoringthe factory settings
(Ypage 234)
Instrument cluster
Selecting the unit of measurement for
distance
TheDisplay Unit Speed-/Odometer:
function allows you to choose whether
certain displays appear in kilometers or miles
in the multifunction display.
Menus and submenus229
On-boar dc omputer and displays
Z

You can determinewhether the multifunction
display shows some messages in miles or
kilometers.
XPress the\norbutton on the
steeringwheel to selecttheSett.menu.
XPress theorbutton to select the
Inst. Clustersubmenu.
XPressto confirm.
XPress theorbutton to select the
Display Unit Speed-/Odometer:
function.
You will see the selected setting:kmor
miles.
XPress thebutton to save the setting.
The selected unit of measurement for
distance applies to:
Rthe digital speedometer in theTripmenu
Rodometer and the trip odometer
Rtrip computer
Rcurrent consumption and the range
Rthe navigation instructions in theNavi
menu
Rcruise control
RDISTRONIC PLUS
RASSYST PLUS service interval display
Selecting the permanent display function
You can determine whether the multifunction
displaypermanently shows your speed or the
outside temperature.
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPress theorbutton to select the
Inst. Clustersubmenu.
XPressto confirm.
XPress theorbutton to select the
Permanent Display:function.
You will see the selected settingOutside
TemperatureorSpeedometer [km/h]
(USA)/Speedometer [mph](Canada).
XPress thebutton to save the setting.
iThe speed is shown in km/h (USA)/mph
(Canada).
Lights
Setting the brightness of the instrument
cluster lighting and switches
The lighting in the instrumentcluster,inthe
displays and the controls in the vehicle
interior can be adjusted using the
Brightness Display/Switches:function.
XPress the\norbutton on the
steeringwheel to selecttheSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Brightness Display/Switches:
function.
You will see the selected setting.
XPressto confirm.
XPress theorbutton to adjust the
brightness to any level fromLevel 1to
Level 5(bright).
XPress theorbutton to save the
setting.
If the light switch is set to\r,or
,the brightness is dependent upon
the brightness of the ambient light.
iThe light sensor in the instrumentcluster
automatically controls the brightnessof
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Switching thedaytime running lamps on/
off
iThis function is not available in Canada.
XPress the\norbutton on the
steeringwheel to selecttheSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
230Menus and submenus
On-board computer and displays

switch-off exterior lighting are on, the
following light up:
RParking lamps
RLow-beam headlamps
RDaytime running lamps
RSide marker lamps
RSurround lighting in the exterior mirrors
Activating/deactivating the interior
lighting delayed switch-off
If you activate theInterior Lighting
Delayfunction,the interior lighting remains
on for 20seconds after you remove the
SmartKey from the ignition lock.
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPressorto select theLight.
Delayfunction.
When theInterior Lighting Delay
function is activated, the vehicle interior is
displayed in red in the multifunction
display.
XPress thebutton to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPressorto select theVehicle
submenu.
XPressto confirm.
XPressorto select theAuto.
Door Locksfunction.
When theAutomaticDoorLockfunction
is activated, the vehicle doors are displayed
in red in the multifunction display.
XPress thebutton to save the setting.
If you activate theAutomatic Door Lock
function,the vehicle is centrally locked above
aspeed of around9mph (15 km/h).
For further information on the automatic
locking feature, see (Ypage 83).
Activating/deactivating the acoustic
locking verification signal
If you switch on theAcousticLockfunction,
an acoustic signal sounds when you lock the
vehicle.
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPressorto select theVehicle
submenu.
XPressto confirm.
XPress theorbutton to select the
Acoustic Lockfunction.
If theAcousticLockfunction is activated,
thesymbol in the multifunction
displaylights up red.
XPress thebutton to save the setting.
Activating/deactivating the radar sensor
system
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPressorto select theVehicle
submenu.
XPressto confirm.
XPress theorbutton to select
Radar Sensor (See Oper. Manual):.
You will see the selected setting:Enabled
orDisabled.
XPress thebutton to save the setting.
The following systems are switched off when
the radar sensor system is deactivated:
RDISTRONIC PLUS (Ypage 177)
RBAS PLUS (Ypage 67)
RPRE-SAFE®Brake (Ypage 72)
RBlind Spot Assist (Ypage 207)
RActive Blind Spot Assist (Ypage 211)
232Menus and submenus
On-board computer and displays