Additional transmission shifts may be neces-
sary.
As soon as the parking procedure is com-
plete, the Park
Park Assist Assist switched
switched off
offmes-
sage appears in the multifunction display and
you will hear a tone. PARKTRONIC continues
to be available.
X Manoeuvre if necessary.
X Always observe the warning messages dis-
played by PARKTRONIC (Y page 208).
Parking tips: 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. It may be the case that Active
Parking Assist guides 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 can-
cel the parking procedure with Active Park- ing 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, the parking pro-
cedure will be cancelled. A sensible parking position can no longer be achieved from
this position.
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
Park Assist cancelled mes-
sage appears in the multifunction display.
or X Press the PARKTRONIC button on the
centre console (Y page 209).
PARKTRONIC is switched off and Active
Parking Assist is immediately cancelled. The
Park Assist cancelled 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 the electric parking brake is applied
R transmission position Pis selected
R parking using Active Parking Assist is no
longer possible
R you are driving faster than 10 km/h
R a wheel spins and ESP ®
intervenes or fails.
In such cases the ÷warning lamp lights
up in the instrument cluster.
A warning tone sounds. The parking symbol
goes out and the Park Assist cancelled Park Assist cancelled
message appears in the multifunction dis-
play.
When Active Parking Assist is cancelled, you
must steer again yourself.
Towing a trailer For vehicles with a trailer tow hitch, the min-
imum length for parking spaces is slightly
increased.
If you have attached a trailer to your vehicle,
you should not use Active Parking Assist.
Once the electrical connection is established between your vehicle and the trailer, Active
Parking Assist is no longer available. PARK-
TRONIC is deactivated for the rear area. Driving systems
213Driving and parking Z
Reversing camera
General notes Example: Coupé
Reversing camera :is located in the handle
strip of the boot lid/tailgate.
Reversing camera :is an optical parking
and manoeuvring aid. It shows the area
behind your vehicle with guide lines in the
COMAND display.
The area behind the vehicle is displayed as a
mirror image, as in the rear-view mirror.
i The text of messages shown in the
COMAND display depends on the language setting. The following are examples of
reversing camera messages in the
COMAND display.
Important safety notes The reversing camera is only an aid. It is not a
substitute for your attention to the immediate
surroundings. The responsibility for safe
manoeuvring and parking remains with you.
Make sure that there are no persons, animals
or objects in range while manoeuvring and
parking.
Under the following circumstances, the
reversing camera will not function, or will
function in a limited manner:
R if the boot lid/tailgate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light R
if the area is lit by fluorescent light or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed
R if the rear of your vehicle is damaged. In this
case, have the camera position and setting checked at a qualified specialist workshop.
The field of vision and other functions of the
reversing camera may be restricted due to
additional accessories on the rear of the vehi-
cle (e.g. licence plate holder, bicycle rack).
Activating/deactivating the reversing
camera X
To activate: make sure that the key is in
position 2in the ignition lock.
X Make sure that the "Activation by R gear"
function is active in COMAND Online; see
the separate COMAND Online operating
instructions.
X Engage reverse gear.
The area behind the vehicle is shown with
guide lines in the COMAND display.
X To change the function mode for vehi-
cles with trailer tow hitch: using the
COMAND controller, select symbol :for
the "Reverse parking" function or sym-
bol ;for "Coupling up a trailer", see the
separate COMAND Online operating
instructions.
The symbol of the selected function is high- lighted. 214
Driving systemsDriving and parking
To deactivate:
the reversing camera deacti-
vates if you shift the transmission to Por after
driving forwards a short distance.
Displays in the COMAND display The reversing camera may show a distorted
view of obstacles or show them incorrectly or
not at all. Obstacles are not shown by the
reversing camera in the following locations:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate/
boot
i The following reversing camera messages
in the COMAND display correspond to the
display in the CLS Coupé. The details of the
display of the guide lines differ slightly for
the CLS Shooting Brake.
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline. :
Yellow guide line at a distance of approx-
imately 4.0 mfrom the rear of the vehicle
; White guide line without turning the steer-
ing wheel, vehicle width including the
exterior mirrors (static) =
CLS Coupé: yellow guide line for the vehi-
cle width including the exterior mirrors,
for current steering wheel angle
(dynamic)
= CLS Shooting Brake: red guide line for
the vehicle width including the exterior
mirrors, for current steering wheel angle
(dynamic)
? Yellow lane marking the course the tyres
will take at the current steering wheel
angle (dynamic) A
Yellow guide line at a distance of approx-
imately 1.0 mfrom the rear of the vehicle
B Vehicle centre axis (marker assistance)
C Bumper
D Red guide line at a distance of approx-
imately 0.30 mfrom the rear of the vehicle
(CLS Shooting Brake: 0.25 m)
The guide lines are shown when the trans-
mission is in position R.
The distance specifications only apply to
objects that are at ground level. Driving systems
215Driving and parking Z
"Coupling up a trailer" function
:
Vehicle centre point on the yellow guide
line at a distance of approximately 1.0 m
from the rear of the vehicle
; Trailer drawbar
This function is only available on vehicles with
a trailer tow hitch.
X Set the height of trailer drawbar ;so that
it is slightly higher than the ball coupling.
X Position the vehicle centrally in front of
trailer drawbar ;. :
Red guide line at a distance of approx-
imately 0.30 m from the ball coupling
; Trailer drawbar locating aid
= Trailer drawbar
? Symbol for the "Coupling up a trailer"
function
X Use the COMAND controller to select sym-
bol ?, see the separate operating instruc-
tions for COMAND Online.
The "Coupling up a trailer" function is selec- ted. The distance specifications now only apply to objects that are at the same level
as the ball coupling.
X Reverse carefully, making sure trailer draw-
bar locating aid ;points approximately in
the direction of the trailer drawbar.
X Reverse carefully until trailer drawbar =
reaches red guide line :.
The distance between the trailer drawbar
and the red guide line is now approximately
0.30 m.
X Couple up the trailer (Y page 235). ATTENTION ASSIST
General notes ATTENTION ASSIST helps you during long,
monotonous journeys such as on motorways and trunk roads. It is active in the 80 km/h to
180 km/h range.
If ATTENTION ASSIST detects typical indica-
tors of fatigue or increasing lapses in con-
centration on the part of the driver, it sug-
gests taking a break.
ATTENTION ASSIST assesses your level of
fatigue or lapses in concentration by taking
the following criteria into account:
R your personal driving style, e.g. steering
characteristics
R journey-related parameters, e.g. time of
day, length of journey
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 Online
or making a telephone call with COMAND
Online 218
Driving systemsDriving and pa
rking
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
Information in the multifunction display :
Traffic sign indicating a speed limit or the
end of a speed limit (example)
; Units used in the traffic sign displayed
Briefly showing detected traffic signs in
the multifunction display
X Activate the Speed Limit Assist warning
function using the on-board computer
(Y page 249).
A traffic sign indicating a speed limit or the
end of a speed limit :appears in the mul-
tifunction display for approximately five
seconds as soon as it is detected. Any other
information in the multifunction display is
hidden for this period.
Permanently showing detected traffic
signs in the multifunction display
X Display the assistance graphic using the
on-board computer (Y page 249).
A traffic sign indicating a speed limit or the
end of a speed limit :appears in the mul-
tifunction display as soon as it is detected.
Traffic sign indicating a speed limit :is
generally 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 town
R the road type changes (e.g. motorway,
country road)
R you have travelled a certain minimum
distance without the traffic sign being
repeated or detected again
i You can also activate Speed Limit Assist
using COMAND Online. The maximum per-
missible speed is shown in the COMAND
display; see the COMAND Online operating instructions. Night View Assist Plus
Important safety notes Night View Assist Plus is only an aid and is not
a substitute for attentive driving. Do not rely
on the Night View Assist Plus display. You areresponsible for the distance to the vehicle in
front, for vehicle speed and for braking in
good time. Drive carefully and always adapt
your driving style to suit the prevailing road
and traffic conditions.
Night View Assist Plus cannot display objects
directly in front of or beside the vehicle.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera
R on bends, on uphill gradients or downhill
gradients
Pedestrian recognition may be impaired or
inoperative if:
R pedestrians are partially or entirely
obscured by objects, e.g. parked vehicles
R the silhouette of the pedestrian in the Night
View Assist Plus display is incomplete or
interrupted, e.g. by powerful light reflec-
tions 220
Driving systemsDriving an
d parking
the side. When you overtake a vehicle, the
warning only occurs if the difference in speed
is less than 12 km/h.
The yellow indicator lamp goes out if reverse gear is engaged. Blind Spot Assist is then
deactivated.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Collision warning
If a vehicle is detected in the monitoring range of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp :flashes. If
the turn signal remains on, detected vehicles
are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Activating Blind Spot Assist X Make sure that Blind Spot Assist
(Y page 250) is activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Blind Spot Assist is then
deactivated. The indicator lamp lights up yel-
low in the exterior mirrors and the Blind Blind
Spot Assist currently unavailable
Spot Assist currently unavailable
See Owner's Manual
See Owner's Manual message appears in
the multifunction display.
i You can deactivate the indicator lamps in
the exterior mirrors. To do so, you will need to deactivate Blind
Spot Assist if:
R the key is in position 2in the ignition lock
R the engine is not running
R the electrical connection to the trailer
has been established
Lane Keeping Assist General notes
Lane Keeping Assist monitors the area in
front of your vehicle by means of camera
:
at the top of the windscreen. Lane Keeping
Assist detects lane markings on the road and
can warn you before you leave your lane unin-
tentionally.
This function is available in the range between
60 km/h and 200 km/h.
A warning may be given if a front wheel
passes over a lane marking. It will warn you by means of intermittent vibration through the
steering wheel for up to 1.5 second s.
Im portant safety notes G
WARNING
Lane Keeping Assist cannot always clearly
identify lane markings.
In these cases, Lane Keeping Assist may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep in lane, especially if Lane
Keeping Assist alerts you. Driving systems
225Driving and parking Z
Example: CLS Coupé
If Active Blind Spot Assist detects a risk of a
side impact in the monitoring range, a course-correcting brake application is carried out.
This is designed to help you avoid a collision.
If a course-correcting brake application
occurs, red warning lamp :flashes in the
exterior mirror and a dual warning tone
sounds. In addition, the display shown in the
lower image appears in the multifunction dis- play.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be interrup-
ted at any time if you steer slightly in the
opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between
30 km/h and 200 km/h.
Either a course-correcting brake application
appropriate to the driving situation, or none at all, may occur if:
R there are vehicles or obstacles, e.g. crash
barriers, on both sides of your vehicle
R a vehicle approaches too closely on the
side
R you have adopted a sporty driving style with
high cornering speeds R
you clearly brake or accelerate
R a driving safety system intervenes, such as
ESP ®
or PRE-SAFE ®
Brake
R ESP ®
is deactivated
R a loss of tyre pressure or a defective tyre is
detected
Activating Active Blind Spot Assist
X Make sure that Active Blind Spot Assist
(Y page 250) is activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist is
then deactivated. The indicator lamp lights up
yellow in the exterior mirrors and the Active Active
Blind
Blind Spot
SpotAssist
Assist currently
currently unavail‐
unavail‐
able See Owner's Manual
able See Owner's Manual message
appears in the multifunction display.
Active Lane Keeping Assist General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera :
at the top of the windscreen. Active Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your Driving systems
229Driving and parking Z
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake appli-
cation. G
WARNING
Active Lane Keeping Assist does not detect
traffic conditions or road users. In very rare
cases, the system may make an inappropriate brake application, e.g. after intentionally driv-
ing over a solid lane marking. There is a risk of an accident.
An inappropriate brake application may be
interrupted at any time if you steer slightly in
the opposite direction. Always make sure that
there is sufficient distance to the side for
other traffic or obstacles. If you leave your lane under certain circum-
stances, the vehicle will brake briefly on one
side. This is intended to help you return the
vehicle to the original lane.
If a lane-correcting brake application occurs,
display :appears in the multifunction dis-
play.
A lane-correcting brake application can only
be made after driving over a solid, recognis-
able lane marking. Before this, a warning
must have been issued by means of intermit-
tent vibration through the steering wheel. In
addition, a lane with lane markings on both
sides must be recognised. The brake applica- tion also slightly reduces driving speed. i
A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if: R you clearly and actively steer, brake or
accelerate
R you cut the corner on a sharp bend
R you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration
R you have switched on the turn signals
R a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist
R ESP ®
is deactivated
R the transmission is not in position D
R on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established
R a loss of tyre pressure or a defective tyre
has been detected and displayed
There is a possibility that the Active Lane
Keeping Assist could misjudge the given traf-
fic situation. An inappropriate brake applica-
tion may be interrupted at any time if:
R you steer slightly in the opposite direction
R you switch on the turn signal
R you clearly brake or accelerate
A lane-correcting brake application is inter-
rupted automatically if:
R a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist
R lane markings are no longer detected
Activating Active Lane Keeping Assist X Activate Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
Standard orAdaptive Adaptive (Ypage 251).
If you drive at speeds above 60 km/h and
lane markings are detected, the lines in the
assistance graphic display (Y page 249) Driving systems
231Driving and parking Z