2014 MERCEDES-BENZ CLS-Class Owner's Manual

Problems with Night View Assist Plus
Problem Possible causes/consequences and
000B Solutions
The picture quality of
Night View Assist Plus
has deteriorated. The windshield wipers are smearing the windshield.
X
Replace the wiper blades (Y page 126). The windshield is smeared after the vehicle has been cleaned in a
car wash.
X
Cleant he windshield (Y page 314). There is windshield chip damage in the camera's field of vision.
X
Replace the windshield. The windshield is fogged up on the inside.
X
Defrost the windshield (Y page 140). The windshield is iced up.
X
De-ice the windshield (Y page 139). There is dirt on the inside of the windshield.
X
Cleant he inside of the windshield (Y page 314).Lane Tracking package
General notes The Lane Tracking package consistsofB
lind
Spot Assist (Y page 207) and Lane Keeping
Assist (Y page 209).
Blind Spot Assist General notes
Blind Spot Assist uses
aradar sensor system
to monitor the areas on both sides of your
vehicle. It supports you from aspeed of
approximately 20 mph (30k m/h). Awarning
displa yinthe exterio rmirrors draws your
attention to vehicles detected in the
monitored area. If you the nswitc hont he
correspondin gturns ignal to change lanes,
you will also receive avisual and audible
collision warning. Blin dSpot Assist uses
sensors in the rear bumper for monitoring
purposes. For Blin
dSpot Assist to assist you, the radar
sensor system must be operational.
Important safety notes G
WARNING
Blin dSpot Assist does not reac tto:
R vehicles overtaken too closely on the side,
placin gthemint he blind spot area
R vehicles which approach with alarge speed
differential and overtake your vehicle
As aresult, Blind Spot Assist may not give
warnings in such situations. There is arisk of
an accident.
Always observe the traffic conditions
carefully, and maintain asafe 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.
i USA only: Driving systems
207Driving and parking Z

This device has been approved by the FCC
as
a"Vehicular RadarS ystem". The radar
sensor is intended fo ruse 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:
R dirt on the sensors or anything else
covering the sensors
R poor visibility, e.g. due to fog, heavy rain,
snow or spray
R narrow vehicles, e.g. motorcycles or
bicycles
R the road has very wide lanes
R the road has narrow lanes
R you are not driving in the middle of the lane
R there are barriers or similarl ane borders
Vehicle sinthemonitorin grang eare then not
indicated. Blin
dSpotA ssist 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:
R
warnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
R the 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.
Following asevere impact or in the event of
damage to the bumpers, have the function of
the sensors checked at aqualified specialist
workshop. Blind Spot Assist may otherwise
not work properly.
Indicator and warning display 001A
Yellowi ndicator 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
lamp 001Ain the exterior mirrors lights up
yellow at speeds of up to 20 mph (30k m/h).
At speeds above 20 mph (30 km/h) the 208
Driving systemsDriving and parking

indicator lamp goes out and Blin
dSpot Assist
is operational.
If av ehicle is detected within the monitoring
rang eofB lindS pot Assist at speeds above
20 mph (30 km/h), warnin glamp 001Aon the
correspondin gside light supred. This warning
is always emitted when avehicle enters the
blind spot monitoring rang efrom behind or
from the side .When you overtake avehicle,
the warning only occurs if the difference in
speed is less than 7mph (12km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event ,Blind Spot
Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Collision warning
If av ehicle is detected in the monitoring range
of Blind Spot Assist and you switc honthe
correspondin gturn signal, adouble warning
ton esounds. Red warning lamp 001Aflashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp 001A.There are no further warning tones.
Switching on Blind Spot Assist
X Make sure that Blind Spot Assist
(Y page 228) is activated in the on-board
computer.
X Turn the SmartKey to position 2in the
ignition lock.
Warning lamps 001Ain the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Lane Keeping Assist Important safety notes
G
WARNING
Lane Keeping Assist may not always clearly
recognizel ane markings. In this case, Lane Keeping Assist may:
R
give an unnecessary warning
R not give awarning
There is arisk of an accident.
Always pay particular attention to the traffic
situation and stay in lane, in particular if
warned by Lane Keeping Assist. G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There
is ar isk of an accident.
You should always steer, brake or accelerate
yourself, in particular if warned by Lane
Keeping Assist.
If you fail to adapt your driving style, Lane
Keeping Assist can neither reduce the risk of
an accident nor override the laws of physics.
Lane Keeping Assist cannot take into account
the road, traffic and weather conditions. Lane
Keeping Assist is merely an aid. You are
responsible for the distance to the vehicle in
front,f or vehicle speed, for braking in good
time and for staying in your lane.
The Lane Keeping Assist does not keep the
vehicle in the lane.
The system may be impaired or may not
function if:
R there is poor visibility, e.g. due to
insufficient illumination of the road, or due
to snow, rain, fog or spray
R there is glare, e.g. from oncomingt raffic,
the sun or reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instancebyas ticker, in the
vicinity of the camera
R there are no, several or unclear lane
markings for alane, e.g. in areas with road
construction work
R the lane markings are worn away,d ark or
covered up, e.g. by dirt or snow Driving systems
209Driving and parking Z

R
the distance to the vehicl einfront is too
small and the lane markings thu scannot be
detected
R the lane markings change quickly, e.g.
lanes branch off ,cros sone anothe ror
merge
R the road is narrow and winding
R there are strong shadows cast on the lane
General notes Lane Keeping Assist monitors the area in
front of yourv ehicle with camera 001A,which is
mounted at the top of the windshield. Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally.
If you have chosen the function DisplayUnit Speed-/Odometer: (Y
page 229)a nd
selected the display unit km in the on-board
computer, Active Lane Keeping Assist
supports you from aspeed of 60 km/h. If the
miles display unit is selected, the assistance
range begins at 40 mph.
Aw arning may be given if afront wheel
passeso veralane marking. It willw arn you
by means of intermittent vibration in the
steering wheelf or up to 1.5 seconds.
Switching on Lane Keeping Assist
X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard or
Adaptive (Y
page 229).
If you drive at speedsa bove 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display (Y
page 227) are shown in green. Lane
Keeping Assist is ready for use.
Standard
If Standard is selected, no warning vibration
occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for acertain
periodoft ime.
R ad riving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive
If Adaptive is selected, no warning vibration
occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for acertain
periodoft ime.
R ad riving safety system intervenes, e.g.
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively ,e.g. swerve to avoid an
obstacle or change lanes quickly.
R you cut the corner on asharp bend.
In order that you are warned only when
necessary and in good time if you cross the
lane marking, the system recognizes certain
conditions and warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very widel anes, e.g. a
highway.
R the system recognizes solidl ane markings.
The warning vibratio noccurs later if:
R the roa dhasnarro wlanes.
R yo uc ut the corner on abend. 210
Drivin
gsystemsDrivin gand parking

Active Driving Assistance package
Genera lnotes The Active Drivin
gAssistance package
consist sofDISTRONICPLUS(Ypage 177),
Active Blind Spot Assis t(Y page 211) and
Active Lan eKeepin gAssist( Ypage 214).
Active Blind Spot Assist Genera
lnotes
Active Blind Spot Assis tuses aradar 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 displayint he 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. If arisk of lateral collision is
detected, corrective braking may help you
avoid acollision. Before acourse-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:
R activated(Y page 232)
R operational
Important safety notes
Active Blind Spot Assist is only an aid and is
not asubstitute for attentive driving. G
WARNING
Active Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles which approach with alarge speed
differential and overtak eyour vehicle As
aresult, Active Blind Spot Assist may
neither give warnings nor intervene in such
situations. There is arisk of an accident.
Always observe the traffic conditions
carefully, and maintain asafe lateral distance.
i USA only:
This device has been approved by the FCC
as a"Vehicular RadarS ystem". The radar
sensor is intended fo ruse 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.
i Canada only: This device complies with
RSS-210ofI ndustry Canada.O peration 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.
Radars ensors
The Active Blind Spot Assist radar sensors are
integrated into the front and rear bumpers
and behind acover 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.
Following asevere impact or in the event of
damage to the bumpers, have the function of
the radar sensors checked at aqualified Driving systems
211Driving and parking Z

specialist workshop. Active Blind Spot Assist
may otherwise no longer work properly.
Monitoring area G
WARNING
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:
R dirt on the sensors or anything else
covering the sensors
R poor visibility, e.g. due to rain, snow or
spray
Vehicles in the monitoring range are then not
indicated or indicated with adelay.
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:
R warnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
R the warning is canceled when driving for an
extended period next to long vehicles, such
as trucks.
Indicator and warning display 001A
Yellowi ndicator 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 lamp 001Ain 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.
If av ehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
20 mph (30 km/h), warning lamp 001Aon the
corresponding side lights up red. This warning
is always given when avehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake avehicle,
the warning only occurs if the difference in
speed is less than 7mph (12km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event ,Active Blind
Spot Assist is no longer active. 212
Driving systemsDriving and parking

The brightness of the indicator/warning
lamps is adjusted automatically accordin gto
the ambient light.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes and avehicle is detected in the side
monitoring range, you receive avisual and
acoustic collision warning. You then hear a
double warning tonea nd red warning
lamp 001Aflashes. If the turn signal remains on,
detected vehicles are indicated by the
flashing of red warning lamp 001A.There are no
further warning tones.
Course-correcting brake application G
WARNING
Ac ourse-correctingb rake application cannot
alwaysp reventacollision. There is arisk of
an accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes acourse-correcting brake
application. Always maintain asafe distance
at the sides. If Active Blind Spot Assist detect
sarisk 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.
If
ac ourse-correcting brake application
occurs, red warning lamp 001Aflashes in the
exterior mirror and adual 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, or acourse-
correcting brake application adapted to the
driving situation occurs if:
R there are vehicles or obstacles, e.g. crash
barriers, located on both sides of your
vehicle.
R av ehicle approaches you too closely at the
side.
R you have adopted asporty driving style with
high cornering speeds.
R you clearly brake or accelerate.
R ad riving safety system intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is switched off.
R al oss of tire pressure or adefectiv etire is
detected.
Switching on Active Blind Spot Assist
X Make sure that the radar sensor system
(Y page 232) and Active Blind Spot Assist
(Y page 228) are activated in the on-board
computer.
X Turn the SmartKey to position 2in the
ignition lock.
Warning lamps 001Ain the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow. Driving systems
213Driving and parking Z

Active Lan
eKeeping Assist Genera
lnotes Active Lan
eKeepin gAssistm onitor sthe area
in front of your vehicle by means of
camera 001Aat the top of the windshield. Active
Lane Keeping Assist detect slane markings on
th er oad and warn syou before you leave your
lane unintentionally. If you do no treact to the
warning, alane-correctinga pplication of the
brakes can bring the vehicle back intot he
original lane.
If you have chosen the function DisplayUnit Speed-/Odometer: (Y
page 229)a nd
selected the display unit km in the on-board
computer, Active Lane Keeping Assist
supports you from aspeed of 60 km/h. If
miles is selected as the display unit, the
assistanc erange begins at 40 mph.
For Active Lane Keeping Assist to assist you
when driving, the radar sensor system must
be operational.
Important safet ynotes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of acciden tnor 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,f or 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. G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
R give an unnecessary warning and then
make acourse-correcting brake application
to the vehicle
R not give awarning or intervene
There is arisk 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 in anon-critical
driving situation.
The system may be impaired or may not
function if:
R there is poor visibility, e.g. due to
insufficient illumination of the road, or due
to snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instance by asticker, in the
vicinit yofthe camera
R the radar sensors in the front or rear
bumper or in the radiator grill are dirty, e.g.
due to snow
R there are no, several or unclear lane
markings for alane, e.g. in areas with road
construction work
R the lane markings are worn away,d ark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge 214
Driving systemsDriving and parking