2010 MERCEDES-BENZ CLS COUPE warning

Top view
Front sensors
Centre approx. 100 cm
Corners approx. 60 cm
Rear sensors
Centre approx. 120 cm
Corners approx. 80 cm
!
When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does not detect such objects when
they are in the immediate vicinity of the
vehicle. You could damage the vehicle or
the objects.
The sensors may not detect snow and
objects which absorb ultrasonic sources.
Ultrasonic sources, such as an automatic
car wash, a lorry's compressed-air brakes
or a pneumatic drill, could cause PARK-
TRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
Minimum distance Centre approx. 20 cm
Corners approx. 15 cm
If there is an obstacle within this range, the
relevant warning displays light up and a warn-
ing tone sounds. If the distance falls below the minimum, the distance may no longer be
shown.
Warning displays The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the centre air vents.
The warning display for the rear area is loca-
ted on the roof lining in the rear compart-
ment.
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 display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
The selected transmission position and the
direction in which the vehicle is rolling deter-
mine which warning display is active when the
engine is running. Driving systems
171Driving and parking Z

Transmission
position Warning display
D
Front area activated
R,
Nor the vehicle
is rolling back-
wards Rear and front areas
activated
P
No areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
R sixth segment onwards, you will hea ran
intermittent warning ton efor approx-
imately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC :
Indicator lamp
; To deactivate/activate PARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated. Active Park Assist is then also
deactivated. 172
Driving systemsDriving and parking

Problems with PARKTRONIC
Problem Possible causes/consequences and
M Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds,
and the indicator lamp
in the PARKTRONIC
button lights up. PARKTRONIC has malfunctioned and has switched off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Cleant he PARKTRONIC sensors (Y page 274).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X See if PARKTRONIC functions in a different location. Active Parking Assist
Important safety notes Active Parking Assist is an electronic parking
aid with ultrasound. Ultrasound is used to
measure the road on both sides of the vehicle.
As uitable parking space is indicated by the
parking symbol. Active steering intervention
can assis tyou during parking. You may also
use PARKTRONIC (Y page 170). When PARK-
TRONIC is switched off, Active Parking Assist
is also unavailable. G
Risk of accident
Active Parking Assist is merely an aid and may
sometimes recommend parking spaces that
are not suitable for parking. For example,
these might be spaces where parking is pro-
hibited, driveways, unsuitable surfaces, etc.
Active Parking Assist measures the parking
space as you drive past it. Any later changes to the parking space are not taken into
account. For instance, this may be the case
when the vehicle parked in front of or behind
the space changes its position or when an
obstacle is moved into the parking space.
Active Parking Assist does not relieve you of
the responsibility of paying attention. If you
rely solely on Active Parking Assist, you could
cause an accident and injure yourself and oth-
ers.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring.
G
Risk of accident
Objects located above the height range of
Active Parking Assist will not be detected
when the parking space is measured. These
are not taken into account when the parking Driving systems
173Driving and parking
Z

procedure is calculated, e. g. overhanging
loads, tail sections or loading ramps of goods
vehicles. In some circumstances, Active Park-
ing Assist may therefore guide you into the
parking space too early. This may lead to a
collision. For this reason, you should avoid
using Active Parking Assist in such situations.
G
Risk of accident
The front of the vehicle will veer out in the
direction of the oncoming traffic during the
parking operation .Insome cases the vehicle
will also take you onto sections of the oncom-
ing lane during the parking procedure.
You are responsible for safety at all times and
must pay attention to any road users
approaching or passing. Stop the vehicle if
necessary or cancel the Active Parking Assist
parking procedure. G
Risk of injury
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
Use Active Parking Assist for parking spaces:
R that are parallel to the direction of travel
R that are on straight roads, not bends
R that are on the same level as the road, e.g.
not on the pavement
Parking tips:
R on narrow roads, drive as closely as possi-
ble past the parking space.
R parking spaces that are littered, overgrown
or partially occupied by trailer drawbars
might be identified incorrectly or not at all.
R snowfall or heavy rain may lead to a parking
space being measured inaccurately.
R pay attention to the PARKTRONIC
(Y page 171) warning messages during the
parking procedure.
R you can intervene in the steering procedure
to correct it at any time. Active Parking
Assist will then be cancelled. R
when transporting a load which protrudes
from your vehicle, you should not use
Active Parking Assist.
R never use Active Parking Assist when snow
chains or an emergency spare wheel are
fitted.
R make sure that the tyre pressures are
always correct. This has adirec tinfluence
on the parking characteristics of the vehi-
cle.
R the way your vehicle is positioned in the
parking space after parking is dependent
on various factors .These include the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the
location. In some cases, Active Parking
Assist may guide you too far into a parking
space, or not far enough into it. In some
cases, it may also lead you across or onto
the kerb. If necessary, you should abort the
parking procedure with Active Parking
Assist.
R you can also engage forward gear prema-
turely. The vehicle redirects and does not
drive as far into the parking space. Should
a gear be changed too early to achieve a
sensible parking position, the parking pro-
cedure will be aborted.
! If unavoidable, you should drive over
obstacles such as kerbs slowly and not at
a sharp angle. Otherwise, you may damage
the wheels or tyres.
Detecting parking spaces Active Parking Assist is switched on automat-
ically when driving forwards. The system is
operational at speeds of up to approximately
35 km/h. While in operation, the system inde-
pendently locates and measures parking
spaces on both sides of the vehicle. When
driving at speeds below 35 km/h, you will see
the parking symbol as a status indicator in the
instrumentc luster.Active Parking Assist only
displays parking spaces on the front-
passenger side as standard .Parking spaces
on the driver's side are displayed as soon as 174
Driving systemsDriving and parking

the tur
nsignal on the driver's side is activa-
ted. If you wish to park in a space on the driv-
er's side, the indicator on the driver's side
must remain on. This must remain switched
on until you acknowledge the use of Active
Parking Assist by pressing the abutton
on the multifunction steering wheel.
When a parking space has been detected, an
arrow towards the right or the left also
appears. Detected parking space (example)
:
Detected parking space on the left
; Parking symbol
= Detected parking space on the right
Active Parking Assist will only detect parking
spaces:
R that are parallel to the direction of travel
R that are at least 1.5 m wide
R that are at least 1.3 m longer than your
vehicle
Ap arking space is displayed while you are
driving past it, and until you are approx-
imately 15 m away from it.
Parking G
Ris
kofa ccident
PARKTRONIC and Active Parking Assist are
merely parking aids and may no tdetec tall
obstacles. They do not relieve you of the
responsibility of paying attention.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could, otherwise, endanger
yourself and others. X
Stop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
X Shif tthe transmission to position R.
The Start Park Assist? Yes: OK No: %
message appears in the multifunction
display.
X To cancel the procedure: press the %
button on the multifunction steering wheel
or pull away.
or
X To park using Active Parking Assist: press
the a button on the multifunction steer-
ing wheel.
The Park Assist active Accelerate and brake Observe surroundings mes-
sage appears in the multifunction display. G
Risk of accident
When parking, you need to make sure that no
obstacles are located in the vicinity of the
vehicle during the entire operation. Active
Parking Assist does not relieve you of the
responsibility of paying attention. It merely
aids you by intervening actively in the steer-
ing.
To stop the vehicle or avoid an accident you
need to apply the brakes yourself.
X Let go of the multifunction steering wheel.
X Back up the vehicle, being ready to brake
at all times. When reversing, do not exceed
a speed of approximately 10 km/h; other-
wise, Active Parking Assist will be deacti-
vated.
i In tight parking spaces, you will achieve
the best parking results by backing up as
far as possible. When doing so, also
observe the PARKTRONIC messages.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
Manoeuvring may be required in tight park-
ing spaces.
The Park Assist active Select D Observe surroundings message appears in
the multifunction display. Driving systems
175Driving and parking Z

X
Shift the transmissio ntoposition Dwhile
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
The Park Assist active Accelerate and brake Observe surroundings mes-
sage appears in the multifunction display.
i You will achieve the best parking results
by waiting for the steering procedure to
complete before moving forwards.
X Drive forwards and be ready to brake at all
times.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
The Park Assist active Select R Observe surroundings message appears in
the multifunction display.
X Further transmission changes may be nec-
essary.
As soon as the parking procedure is com-
plete, the Park Assist switched off mes-
sage appears in the multifunction display.
Active Parking Assist is now deactivated.
PARKTRONIC is still available.
X Manoeuvre if necessary.
X Always observe the warning messages dis-
played by PARKTRONIC (Y page 171).
Cancelling Active Parking Assist You can cancel Active Parking Assist at any
time.
X
Stop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be cancelled at
once. The Park Assist cancelled mes-
sage appears in the multifunction display.
or
X Press the PARKTRONIC button on the
centre console (Y page 172).
PARKTRONIC is switched off and Active
Parking Assist is immediately cancelled.
The Park Assist cancelled message
appears in the multifunction display. Active Parking Assist is cancelled automati-
cally if:
R
the transmission is shifted too early.
R parking using Active Parking Assist is no
longer possible.
R you are driving faster than 10 km/h.
R a wheel spins, ESP ®
intervenes or fails. The
ä warning lamp lights up in the instru-
ment cluster.
Aw arning tone sounds. The parking space
symbol disappears and the multifunction dis-
play shows the Park Assist cancelled message.
When Active Parking Assist is cancelled, you
must steer again yourself.
Reversing camera
Important safety notes The reversing camera is an optical parking
aid. It shows the area behind your vehicle in
the COMAND AP
Sdisplay. G
Risk of injury
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
The reversing camera is located in the handle
strip of the boot lid. :
Reversing camera 176
Driving systemsDriving and parking

ATTENTION ASSIST assesses your level of
fatigue or lapses in concentratio
nby taking
the following criteria into account:
R your personal driving style, e.g. steering
characteristics
R driving conditions, e.g. time, driving time
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
R if the road condition is poor, e.g. if the sur-
face is uneven or if there are potholes
R if there is a strong side wind
R if you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
R if you are predominantly driving slower
than 80 km/h or faster than 180 km/h
R if you are currently using COMAND APS or
making a telephone call wit hit
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display X
Activate ATTENTION ASSIST using the on-
board computer (Y page 204).
Symbol :appears in the multifunction
display.
If ATTENTION ASSIS Tis active, it will not warn
you until at least 20 minutes after your jour-
ney has begun. You then hear an intermittent
warning tone twice and the AttentionAssist: Drowsiness detected message
appears in the multifunction display. X
If necessary, take a break.
X Press the abutton to confirm the mes-
sage.
On long journeys, take regularb reaks in good
time to allow yourself to rest properly.Ify ou
do not take a break and ATTENTION ASSIST
still detects typical indicators of fatigue or
increasing lapses in concentration, you will be
warned again after 15 minutes at the earliest.
ATTENTION ASSIST is reset when you con-
tinue your journey and it starts assessing your
tiredness again if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break. Speed Limit Assist
Important safety notes i
Speed Limit Assist is not operational in all
countries.
Speed Limit Assist, in conjunction with your
navigation system, shows you speed limits it
has detected in the multifunction display .The
display appears when traffic signs indicating
a speed limit or end of a speed limit zone are
detected. If Speed Limit Assist does not
detect any traffic signs, it adopts the speed
limit in the digital map and shows it in the
display.
Speed Limit Assist detects signs with a cam-
era at the top of the windscreen. 178
Driving systemsDriving and parking

:
Speed Limit Assist camera G
Ris
kofa ccident
Speed Limit Assist is only an aid and may
detect speed limit signs incorrectly or no tat
all.
The system may be impaired or may no tfunc-
tion if:
R there is poor visibility, e.g .due to snow,
rain, fog or spray.
R there is glare, e.g. from the sun or from
oncoming traffic.
R the windscree nis dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R the traffic signs are covered, for instance
by dirt, snow or trees.
R the traffic signs are poorly illuminated.
R there are ambiguous traffic signs, for
instance near roadworks or on multi-lane
roads.
Traffic signs always have priority over the
Speed Limit Assist display. Speed Limit Assist
cannot detect road and traffic conditions. It is
not a substitute for attentive driving.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourselfa nd others. Information in the multifunction display :
Traffi csign indicating aspeed limit or the
end of a speed limit
; Speed Limit Assist is available and the
warning function is switched on in the on-
board computer
= Units used in the traffic sign displayed
Briefly showing detected traffic signs in
the multifunction display
If you have activated the Speed Limit Assist
warning function, traffic signs indicating a
speed limit or the end of a speed limit :are
shown in the multifunction display for approx-
imately five seconds as soon as they are
detected. Any other information in the multi-
function display is hidden for this period.
X Activate the Speed Limit Assist warning
function using the on-board computer
(Y page 203).
Symbol ;appears.
Permanently showing detected traffic
signs in the multifunction display
If Speed Limit Assist is selected in the on-
board computer, road sign indicating the
speed limit or end of a speed limit zone :
appears in the multifunction display as soon
as it is detected.
Traffic sign indicating aspeed limit :is gen-
erally displayed until:
R a traffic sign indicating the end of the speed
limit is detected.
R you make a turn.
R you leave or enter a city or town. Driving systems
179Driving and parking Z