2012 MERCEDES-BENZ CLS-Class Parktronic

If indicator lamp : lights up, PARKTRONIC is
deactivated. Active Park Assist is then also
deactivated.
i PARKTRONIC is automatically activated
when you turn the SmartKey to position 2
in the ignition lock.174Driving systemsDriving and parking

Problems with PARKTRONICProblemPossible causes/consequences and M SolutionsOnly the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is
deactivated after
approximately
20 seconds, and the
indicator lamp in the
PARKTRONIC button
lights up.PARKTRONIC has malfunctioned and has switched off.XIf problems persist, have PARKTRONIC checked at a qualified
specialist workshop.Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is
deactivated after
approximately 20
seconds.The PARKTRONIC sensors are dirty or there is interference.XClean the PARKTRONIC sensors ( Y page 289).XSwitch the ignition back on.The problem may be caused by an external source of radio or
ultrasound waves.XSee 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.
A suitable parking space is indicated by the
parking symbol. Active steering intervention
can assist you during parking. You may also
use PARKTRONIC ( Y page 171). When
PARKTRONIC is switched off, Active Parking
Assist is also unavailable.
GWARNING
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
prohibited, 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
others.
You are always responsible for safety and
must continue to pay attention to your
immediate surroundings when parking and
maneuvering.Driving systems175Driving and parkingZ

GWARNING
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
procedure is calculated, e.g. overhanging
loads, tail sections or loading ramps of goods
vehicles. In some circumstances, Active
Parking 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.
GWARNING
The front of the vehicle will veer out in the
direction of the oncoming traffic during the
parking operation. In some cases, the vehicle
will also take you onto sections of the
oncoming 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.
GWARNING
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. 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 past the parking
space as close as possible.
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 173) 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 canceled.
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
mounted.
R make sure that the tire pressures are
always correct. This has a direct influence
on the parking characteristics of the
vehicle.
R the way your vehicle is positioned in the
parking space after parking is dependent
on various factors. These include the
position 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 curb. If necessary, you should abort the
parking procedure with Active Parking
Assist.
R you can also engage forward gear
prematurely. The vehicle redirects and
does not drive as far into the parking space.
Should the gear change occur too soon to
achieve a sensible parking position, the
parking procedure will be aborted.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at
a sharp angle. Otherwise, you may damage
the wheels or tires.
Detecting a parking space
Active Parking Assist is switched on
automatically when driving forwards. The
system is operational at speeds of up to
approximately 22 mph (35 km/h). While in
operation, the system independently locates
176Driving systemsDriving and parking

and measures parking spaces on both sides
of the vehicle. When driving at speeds below
19 mph (30 km/h), you will see the parking
symbol as a status indicator in the instrument
cluster. By default, Active Parking Assist only
displays parking spaces on the front-
passenger side. Parking spaces on the
driver's side are displayed as soon as the turn
signal on the driver's side is activated. If you
wish to park in a space on the driver'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 a button 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 at least 59 in (1.5 m) wide
R at least 51 in (1.3 m) longer than your
vehicle
A parking space will be displayed to you as
you drive by until you are approximately 50 ft
(15 m) away from it.
Parking
GWARNING
PARKTRONIC and Active Parking Assist are
merely parking aids and may not detect all
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
immediate surroundings when parking and
maneuvering. You could otherwise endanger
yourself and others.XStop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.XShift the transmission to position R.
The Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.XTo cancel the procedure: press the
% button on the multifunction steering
wheel or pull away.
or
XTo park using Active Parking Assist:
press the a button on the multifunction
steering wheel.
The Park Assist Active Accelerate
and Brake Observe Surroundings
message appears in the multifunction
display.GWARNING
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
steering.
To stop the vehicle or to avoid an accident,
you need to apply the brakes yourself.
XLet go of the multifunction steering wheel.XBack up the vehicle, being ready to brake
at all times. Do not exceed a speed of
approximately 5 mph (10 km/h) while
backing up; Active Parking Assist will
otherwise be canceled.
i In tight parking spaces, you will achieve
the best parking results by backing up as
Driving systems177Driving and parkingZ

far as possible. When doing so, also
observe the PARKTRONIC messages.XStop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
Maneuvering may be required in tight
parking spaces.
The Park Assist Active Select D
Observe Surroundings message appears
in the multifunction display.
XShift the transmission to position D while
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
The Park Assist Active Accelerate
and Brake Observe Surroundings
message appears in the multifunction
display.
i You will achieve the best parking results
by waiting for the steering procedure to
complete before moving forwards.
XDrive forwards and be ready to brake at all
times.XStop 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.
XFurther transmission shifts may be
necessary.
As soon as the parking procedure is
complete, the Park Assist Disabled
message appears in the multifunction
display. PARKTRONIC continues to be
available.
XManeuver if necessary.XAlways observe the warning messages
displayed by PARKTRONIC ( Y page 173).
Canceling Active Parking Assist
You can cancel Active Parking Assist at any
time.
XStop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be canceled at
once. The Park Assist Canceled
message appears in the multifunction
display.
or
XPress the PARKTRONIC button on the
center console ( Y page 173).
PARKTRONIC is switched off and Active
Parking Assist is immediately canceled.
The Park Assist Canceled message
appears in the multifunction display.
Active Parking Assist is canceled
automatically if:
R the transmission is shifted too early.
R parking using Active Parking Assist is no
longer possible.
R you are driving faster than 6 mph
(10 km/h).
R a wheel spins, ESP ®
intervenes or fails. The
ä warning lamp lights up in the
instrument cluster.
A warning tone sounds. The parking space
symbol disappears and the Park Assist
Canceled message appears in the
multifunction display.
When Active Parking Assist is canceled, you
must steer again yourself.
Rear view camera
Important safety notes
The rear view camera is an optical parking aid.
It shows the area behind your vehicle in the
COMAND display.
GWARNING
Make sure that no persons or animals are in
the maneuvering range. Otherwise, they
could be injured.
The rear view camera is located in the handle
strip of the trunk lid.
178Driving systemsDriving and parking

XTo activate: press a again.
The å warning lamp in the instrument
cluster goes out.
Activating/deactivating PRE-SAFE ®
Brake
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
XPress the = or ; button on the
steering wheel to select the DriveAssist
menu.XPress 9 or : to select PRE-SAFE
Brake .XPress a.
The current selection is displayed.XTo activate/deactivate: press a
again.
When PRE-SAFE ®
Brake ( Y page 67) is
activated, the multifunction display shows
the Ä symbol as long as the HOLD
function is not activated ( Y page 166).
Vehicles with Active Parking Assist: if
PARKTRONIC is activated and you are driving
at a speed under 22 mph (35 km/h), the j
Active Parking Assist symbol will be displayed
instead of the Ä symbol.
Activating/deactivating ATTENTION
ASSIST
XPress the = or ; button on the
steering wheel to select the DriveAssist
menu.XPress the 9 or : button to select
Attention Asst. .XPress a.
The current selection is displayed.XTo activate/deactivate: press a
again.
When ATTENTION ASSIST ( Y page 180) is
activated, the À symbol appears in the
multifunction display when the ignition is on.
Activating/deactivating Blind Spot
Assist
You can use the Blind Spot Asst. function
to activate or deactivate Blind Spot Assist
( Y page 184) or Active Blind Spot Assist
( Y page 188).
XPress = or ; on the steering wheel
to select the DriveAssist menu.XPress 9 or : to select Blind Spot
Asst. .XPress a.
The current selection is displayed.XTo activate/deactivate: press a
again.
Activating/deactivating Lane Keeping
Assist
You can use the Lane Keep. Asst. function
to activate/deactivate Lane Keeping Assist
( Y page 186) or Active Lane Keeping Assist
( Y page 191).
XPress the = or ; button on the
steering wheel to select the DriveAssist
menu.XPress the 9 or : button to select
Lane Keep. Asst. .XPress a.
If the function is activated, the road
markings are shown in red in the
multifunction display.XTo activate/deactivate: press a
again.
If Lane Keeping Assist or Active Lane keeping
Assist is activated, the multifunction display
shows the à symbol when the ignition is
switched on.
Menus and submenus207On-board computer and displaysZ

Display messagesPossible causes/consequences and M SolutionsBlind Spot Assist
Inoperative or
Active Blind Spot
Assist InoperativeBlind Spot Assist or Active Blind Spot Assist is defective.
The yellow 9 indicator lamps also light up in the exterior
mirrors.XVisit a qualified specialist workshop.Park Assist
CanceledThe driver's door is open and the driver's seat belt has not been
fastened.XRepeat the parking process with the seat belt fastened and the
driver's door closed.You have inadvertently touched the multifunction steering wheel
while steering intervention was active.XWhile steering intervention is active, make sure that the
multifunction steering wheel is not touched.The vehicle has started to skid and ESP ®
has intervened.XUse Active Parking Assist again later ( Y page 175).Park Assist
InoperativeYou have just performed a large number of turning or parking
maneuvers.
Active Parking Assist will become available again after
approximately 10 minutes ( Y page 175).XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XSwitch off and restart the engine.XIf the warning message does not disappear: consult a qualified
specialist workshop.PARKTRONIC is defective.XVisit a qualified specialist workshop.Park Assist
FinishedThe vehicle is parked. A warning tone also sounds.
The display message disappears automatically.DISTRONIC PLUS
OffDISTRONIC PLUS has been deactivated ( Y page 157). If it was
deactivated automatically, a warning tone also sounds.DISTRONIC PLUS
Now AvailableDISTRONIC PLUS is operational again after having been
temporarily unavailable. You can now reactivate DISTRONIC PLUS
( Y page 157).232Display messagesOn-board computer and displays