sensor MERCEDES-BENZ CLS 2014 Owner's Manual

The exterior lighting (except the parking/
standinglamps) switches off automatically if
you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey
in position0.
Automatic headlampmode
GWARNING
When the light switch is set to\r,the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There isarisk of an
accident.
In such situations, turn the light switch to
.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.

Left-hand standinglamps
\nRight-hand standinglamps
Parking lamps, license plate and
instrument cluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
\ris the favored light switch setting. The
light setting is automatically selected
accordingtothe brightness of the ambient
light (exception: poor visibility due to weather
conditions such as fog, snow or spray):
RSmartKey in position1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
RWith the engine running: if you have
activated the daytime runninglamps
function via the on-board computer,the
daytime runninglamps or the low-beam
headlamps and parking lamps are switched
on or off automatically depending on the
brightness of the ambient light.
XTo switch on automatic headlamp
mode:turn the light switch to\r.
Only for Canada:
The daytime runninglamps improve the
visibility of your vehicle during the day. The
daytime runninglamps function is required by
law in Canada. It cannot therefore be
deactivated.
When the engine is runningand the vehicle is
stationary: if you move the selector lever from
adrive position toP,the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in high ambient light: if you
turn the light switch to,the daytime
runninglamps and parking lamps switch on.
If the engine is runningand you turn the light
switch to,the manual settings take
precedenceover the daytime runninglamps.
USA only:
The daytime runninglamps improve the
visibility of your vehicle during the day. To do
this, the daytime runninglamps function must
be switched on using the on-board computer
(Ypage 230).
If the engine is runningand you turn the light
switch toor,the manual settings
Exterior lighting117
Lights and windshield wipers
Z

take precedence overthe daytime running
lamps.
Low-beam headlamps
GWARNING
When the lightswitchisset to\r,thelow-
beam headlampsmay not be switchedon
automatically if there is fog, snow or other
causes of poor visibility due to theweather
conditions such as spray. Thereisarisk of an
accident.
In such situations, turnthe light switch to
.

Left-hand standing lamps
\nRight-hand standing lamps
Parking lamps, license plate and
instrumentcluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
Even if the light sensor does not detect that
it is dark,the parking lamps and low-beam
headlamps switchonwhen the ignition is
switched on and the light switchisset to the
position. This isaparticularly useful
function in the eventofrain and fog.
XTo switch on thelow-beam headlamps:
turnthe SmartKey in the ignition lock to
position2or start the engine.
XTurn the light switchto.
The greenindicator lamp in the
instrumentcluster lightsup.
Parking lamps
!If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the nextengine start. Alwayspark
your vehiclesafelyand sufficiently lit
according to legalstandards.Avoid the
continuoususe of theparking lamps
for severalhours.Ifpossible, switch on the
\nright or theleft standinglamp.

Left-hand standinglamps
\nRight-hand standinglamps
Parking lamps, license plate and
instrument cluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
XTo switch on:turn the light switch to
.
The greenindicator lamp in the
instrument cluster lights up.
118Exterior lighting
Lights and windshiel dw ipers

Standing lamps

Left-hand standing lamps
\nRight-hand standing lamps
Parking lamps, license plate and
instrumentcluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
Switchingonthe standinglamps ensuresthe
corresponding side of thevehicle is
illuminated.
XTo switch on thestanding lamps:the
SmartKey is notintheignition lockoritis
in position0.
XTurn thelight switch to(left-handside
of thevehicle)or\n(right-hand side of
thevehicle).
Combination switch
Turn signal
High-beam headlamps
Turn signal, right
$High-beam flasher
!Turn signal, left
XTo indicatebriefly:pressthecombination
switch briefly to thepressure pointinthe
direction of arrowor!.
The corresponding turn signal flashes three
times.
XTo indicate:press the combination switch
beyond the pressure point in the direction
of arrowor!.
High-beam headlamps
High-beam headlamps
Turn signal, right
$High-beam flasher
!Turn signal, left
XTo switch on the high-beam headlamps:
turn the SmartKey in the ignition lock to
position2or start the engine.
XTurn the light switch toor\r.
XPress the combination switch beyond the
pressure point in the direction of
arrow.
In the\rposition, the high-beam
headlamps are only switched on when it is
dark and the engine is running.
Exterior lighting119
Lights and windshield wipers
Z

You can use this function to set the
headlamps to change betweenlow beam and
high beam automatically. The system
recognizes vehicles with their lights on, either
approaching from the opposite direction or
traveling in front of your vehicle, and
consequently switches the headlamps from
high beam to low beam.
The system automatically adapts the low-
beam headlamp range depending on the
distance to the other vehicle. Once the
system no longer detectsany other vehicles,
it reactivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Switching Adaptive Highbeam Assist
on/off
High-beam headlamps
Turn signal, right
$High-beam flasher
!Turn signal, left
XTo switch on:turn the light switch to
\r.
XPress the combination switch beyond the
pressure point in the direction of
arrow.
Theindicator lamp in the
multifunction display lights up if it is dark
and the light sensor activates the low-beam
headlamps.
If you are driving at speeds above
approximately 28 mph (45 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above
approximately 35 mph (55 km/h) and no
other road users have been detected:
The high-beam headlamps are switched on
automatically. Theindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below
approximately 30 mph (45 km/h) or other
road users have been detected or the roads
are adequately lit:
The high-beam headlamps are switched off
automatically. Theindicator lamp in
the instrument cluster goes out. The
indicator lamp in the multifunction display
remains lit.
XTo switch off:move the combination
switch back to its normal position or move
the light switch to another position.
Theindicator lamp in the instrument
cluster goes out.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
XSwitch on the light and drive off.
The level of moisture diminishes,
depending on the length of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
XHave the headlamps checked ataqualified
specialist workshop.
122Exterior lighting
Lights and windshield wipers

thathas collectedonthewindshield can
scratch theglass if wipingtakes placewhen
thewindshield is dry.
If it is necessary to switch on thewindshield
wipersindry weather conditions, always
use washerfluid when operating the
windshield wipers.
!If the windshield wipers leave smearson
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washingthe vehicle in an automatic
car wash.
!Intermittentwiping with rain sensor: due
to optical influences and the windshield
becomingdirtyindry weatherconditions,
the windshield wipers may be activated
inadvertently. This could then damage the
windshield wiper blades or scratchthe
windshield.
For this reason, you should always switch
off the windshield wipers in dry weather.
Combination switch

Windshield wiper off
Intermittent wipe, low (rain sensor
set to low sensitivity)
Intermittent wipe, high (rain sensor
set to high sensitivity)
Continuous wipe, slow
Continuous wipe, fast
%Single wipe/
To wipe the
windshield using washer fluid
XSwitch on the ignition.
XTurn the combination switch to the
corresponding position.
In theorposition, the appropriate
wiping frequency is set automatically
according to the intensity of the rain. In
theposition, the rain sensor is more
sensitive than in theposition, causing
the windshield wipers to wipe more
frequently.
If the wiper blades are worn, the windshield
will no longer be wiped properly. This could
prevent you from observing the traffic
conditions. Replace the wiper blades twice a
year, ideallyinspring and fall.
Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could
be trapped by the wiper arm. There isarisk
of injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
!Never open the hood ifawindshield wiper
arm has been folded away from the
windshield.
Never foldawindshield wiper arm without
awiper blade back ontothe windshield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm withoutawiper
blade and it falls ontothe windshield, the
windshield may be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades changed ataqualified
specialist workshop.
126Windshieldwipers
Light sa nd windshield wipers

Asaresult, DISTRONICPLUSmay neither give
warningsnor interveneinsuchsituations.
There isariskofanaccident.
Alwayspaycarefulattentiontothe traffic
situationand be ready to brake.
GWARNING
DISTRONIC PLUScannotalwaysclearly
identify otherroad users and complex traffic
situations.
In such cases, DISTRONIC PLUS may:
Rgive an unnecessary warning and then
brake the vehicle
Rneither giveawarning nor intervene
Raccelerate unexpectedly
There isarisk of an accident.
Continue to drive carefully and be ready to
brake, in particular when warned to do so by
DISTRONIC PLUS.
GWARNING
DISTRONIC PLUS brakes your vehicle with up
to 40% of the maximum braking force. If this
braking force is insufficient,DISTRONIC PLUS
warns you visually and audibly. There isarisk
of an accident.
In such cases, apply the brakes yourself and
try to take evasive action.
!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automatically in certain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
Rwhen towing the vehicle
Rin the car wash
If you fail to adapt your driving style,
DISTRONIC PLUS can neither reduce the risk
of accident nor override the laws of physics.
DISTRONIC PLUS cannot take into account
the road, traffic and weather conditions.
DISTRONIC PLUS 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.
Do not use DISTRONIC PLUS:
Rin road and traffic conditions which do not
allow you to maintainaconstant speed e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Brakingor
accelerating could cause the drive wheels
to lose traction and the vehicle could then
skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow
vehicles driving in front,e.g. motorcycles, or
vehicles driving onadifferent line.
In particular, the detection of obstacles can
be impaired if:
Rdirt on the sensors or anything else
coveringthe sensors
Rsnow or heavy rain
Rinterference by other radar sources
Rstrongradar reflections, for example, in
parking garages
If DISTRONIC PLUS no longer detectsa
vehicle in front,DISTRONIC PLUS may
unexpectedly accelerate the vehicle to the
stored speed.
This speed may:
Rbe too high if you are driving inafilter lane
or an exit lane
Rbe so high in the right lane that you pass
vehicles driving on the left (left-handdrive
countries)
Rbe so high in the left lane that you pass
vehicles driving on the right (right-hand
drive countries)
If there isachange of drivers, advise the new
driver of the speed stored.
General notes
DISTRONIC PLUS regulates the speed and
automatically helps you maintain the
distance to the vehicle detected in front.
Vehicles are detected with the aid of the radar
178Driving systems
Driving and parking

sensor system. DISTRONIC PLUS brakes
automaticallysothat the set speed is not
exceeded.
Change intoalower gear in good time on long
and steep downhill gradients. This is
especially important if the vehicle is laden. By
doing so, you will make use of the braking
effect of the engine. This relieves the load on
the brake system and prevents the brakes
from overheating and wearing too quickly.
If DISTRONIC PLUS detects that there isarisk
ofacollision, you will be warned visually and
acoustically.DISTRONIC PLUS cannot
preventacollision without your intervention.
An intermittent warning tone will then sound
and the distance warning lamp will light up in
the instrument cluster. Brake immediately in
order to increase the distance to the vehicle
in front or take evasive action provided it is
safe to do so.
For DISTRONIC PLUS to assist you, the radar
sensor system must be operational.
If there is no vehicle in front,DISTRONIC
PLUS operates in the same way as cruise
control in the speed range between 20 mph
(Canada: 30 km/h) and 120 mph (Canada:
200 km/h). Ifavehicle is driving in front of
you, it operates in the speed range between
0mph (0 km/h) and 120 mph (Canada:
200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS transmits radar waves,
it can resemble the radar detectors of the
responsible authorities. You can refer to the
relevant chapter in the Operator's Manual if
questions are asked aboutthis.
iUSA only: This device has been approved
by the FCC asa"VehicularRadar System".
The radar sensor is intended for use in an
automotive radar system only. Removal,
tampering,oralteringofthedevice will void
any warranties, and is notpermitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Anyunauthorized modification to this
device could void the user's authorityto
operate the equipment.
iCanada only: This device complies with
RSS-210 of Industry 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.
Anyunauthorized modification to this
device could void the user's authorityto
operate the equipment.
Cruise control lever
To storethe currentspeed orahigher
speed
To storethe currentspeed oralower
speed
$To deactivate DISTRONIC PLUS
!To storethe currentspeed or call up the
last stored speed
To set the specified minimum distance
Driving systems179
Driving and parking
Z

Load compensation
The vehicle can compensatedifferences in
thevehicle level by raisingorlowering the
rear axle. This is the case, for example, if
people get out or if luggage is being loaded.
Load compensation takes place if:
Radoor or the trunk lid/tailgate is opened
Rthe parked vehicle is unlocked
For larger level changes, the engine must be
running.
4MATIC (permanent four-wheel drive)
If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, weather and traffic
conditions. 4MATIC 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.
Ifadrive wheel spins due to insufficientgrip:
ROnly depress the accelerator pedalasfar
as necessary when pulling away.
RAccelerate less when driving.
!Never tow the vehiclewith one axle
raised. This may damage the transfer case.
Damageofthis sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remaineitheronthe ground
or be fully raised. Observe the instructions
for towing the vehicle with all wheels in full
contact with the ground.
iIn wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if
you use winter tires(M+S tires), with snow
chains if necessary.
4MATIC ensures that allfour wheels are
permanently driven. Together with ESP®,it
improves the traction of yourvehicle
wheneveradrive wheel spins due to
insufficient grip.
PARKTRONIC
Important safetynotes
PARKTRONIC is an electronic parkingaid with
ultrasonic sensors. It indicates visually and
audibly the distancebetween your vehicle
and an object.
PARKTRONIC is only an aid. It is not a
replacementfor your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exitingaparkingspace. When
maneuvering, parkingorpulling out of a
parkingspace, make sure that thereare no
persons, animals or objects in the area in
which you are maneuvering.
!When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detectsuch objects
when they are in theimmediatevicinity of
thevehicle. You could damagethe vehicle
or the objects.
The sensors may not detect snow and other
objectsthat absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck orapneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to positionD,RorN
Rrelease the parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper.
Driving systems193
Driving and parking
Z

Rangeofthe sensors
General notes
PARKTRONIC doesnot take objects into
consideration that are:
Rbelow the detection range, e.g. people,
animalsorobjects
Rabove the detection range, e.g.
overhanging loads, truck overhangs or
loading ramps.
Sensors in the front bumper, left-hand
side(example)
The sensors mustbefree from dirt, ice or
slush. They can otherwise not function
correctly. Clean the sensorsregularly, taking
care not to scratch or damage them
(Ypage 315).
Example: side view
Example: top view
Front sensors
CenterApprox.40in(approx.
100 cm)
CornersApprox.24in(approx.
60 cm)
Rear sensors
CenterApprox.48in(approx.
120 cm)
CornersApprox.32in(approx.
80 cm)
Minimumdistance
CenterApprox.8in(approx.
20 cm)
CornersApprox.6in(approx.
15 cm)
Ifthere is an obstacle withinthis range, the
relevant warning displays light up and a
warning tone sounds. If the distance falls
below the minimum, the distance may no
longer be shown.
194Driving systems
Driving and parking

Warning displays
Warning display for the front area
Segments on the left-hand side of the
vehicle
Segments on the right-hand side of the
vehicle
$Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning displayfor the front area is located
on the dashboard above the center airvents.
The warning display for the rear area is
located on the headliner in the rear
compartment.
The warning display for each side of the
vehicle is divided intofive yellow and two red
segments. PARKTRONIC is operational if
yellow segments showing operational
readiness$light up.
The selected transmission position and the
direction in which the vehicle is rolling
determine which warning display is active
when the engineisrunning.
Transmission
position
Warning display
DFrontarea activated
R,Nor the vehicle
is rolling
backwards
Rear and frontareas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distancefrom the obstacle.
From the:
Rsixthsegmentonwards,youwill hearan
intermittentwarningtonefor
approximately two seconds.
Rseventhsegment onwards, you will hear a
warning tonefor approximately two
seconds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
Indicator lamp
To deactivate/activate PARKTRONIC
If indicator lamplights up, PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position2
in the ignition lock.
Driving systems195
Driving and parking
Z