409 Controls in detail
Driving systems
Park Assist*
Park Assist is an electronic parking aid
with radar sensors that helps you while
parking.
It visually and audibly indicates the relative
distance between the vehicle and an ob-
stacle.Park Assist is automatically activated
when the engine is running and the trans-
mission is in position D, R or N.
The Park Assist system deactivates at
speeds over approximately 11 mph
(18 km/h). At lower speeds the Parktronic
system turns on again.
Park Assist is also switched off when the
transmission is in position P or switch off
the engine.
While the transmission is in position N,
Park Assist is switched off if you secure the
vehicle in place with the electric parking
brake.
The Park Assist system monitors the sur-
roundings of your vehicle with four sensors
in the front bumper and two sensors in the
rear bumper.Warning!
G
Park Assist is a supplemental system. It is
not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always rests with the driver.Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.!
Special attention must be paid to objects
with smooth surfaces or low silhouettes (e.g.
trailer couplings, painted posts, elevated cross-
bars or road curbs). Such objects may not be de-
tected by the system and can damage the
vehicle.
!
The operational function of the Park Assist
system can be affected by dirty sensors, espe-
cially at times of snow and ice.
Make sure that the area on the bumpers around
the sensors is free of dirt, ice and/or slush,
otherwise Park Assist may not function properly,
see “Cleaning the Park Assist* system sensors”
(
page 538).
!
High-frequency sources such as toll sta-
tions, speed measuring systems, etc. can cause
the Park Assist system to malfunction. You can
switch off the Park Assist using the Park Assist
button (
page 412) or switch off the radar sen-
sors (
page 256) to prevent possible malfunc-
tion.
i
In certain countries and near radio-astrolog-
ical facilities, you must switch off the radar sen-
sors (page 256).
412 Controls in detailDriving systemsCollision warning
Park Assist can detect obstacles from a
considerable distance. If you drive in re-
verse towards an obstacle, you will hear a
warning tone. You must then brake in or-
der to avoid a collision. The warning tone
for a collision will not sound when the vehi-
cle is at a standstill very close to the obsta-
cle. In this case, you will hear a
corresponding tone for the warning indica-
tor in the rear area.Switching Park Assist system on/off
The Park Assist system can be switched off
manually.
The Park Assist button with the indicator
lamp is located on the control panel on the
right-hand side of the instrument cluster.
1Park Assist button
2Indicator lamp
Switching off Park Assist system:
Press button 1.
Indicator lamp 2 comes on.
Switching on Park Assist system:
Press button 1 again.
Indicator lamp 2 goes out.
i
During strong rainfall, the collision warning
may be triggered, for example, by water splash-
ing into the area of the sensors.
i
When the indicator lamp is on, the Park
Assist system is switched off.
i
The Park Assist system is automatically
switched on when the ignition (
page 315) and
radar sensors are switched on (page 256).
414 Controls in detailDriving systemsWarning!
G
The Dynamic Rear View Monitor is a supple-
ment system. It is not intended to, nor does
it replace, the need for extreme care. The re-
sponsibility during parking and other driving
maneuvers always rests with the driver.
The Dynamic Rear View Monitor may show
obstacles with a distorted perspective, in-
correctly or not at all.
Special attention must be paid to objects
outside of the camera’s field of view such as
those located very close to or below the rear
bumper, or above the recessed grip of the
luggage compartment lid. Such objects may
not be detected by the system and can dam-
age the vehicle.
The Dynamic Rear View Monitor does not
warn you about impending collisions with
objects. The driver is always responsible for
safety and must continue to pay attention to
the immediate surroundings while parking
or maneuvering the vehicle. This applies not
only to the area behind the vehicle, but also
to the area in front of and to the sides of the
vehicle. Failure to do so could result in injury
to persons and/or damage to the vehicle or
other property. We also recommend that the
driver use the Parktronic system* or Park
Assist* when parking or maneuvering the
vehicle.Warning!
G
Make sure that no persons or animals are
standing in the area where you are maneu-
vering. You could otherwise injure them.Warning!
G
The Dynamic Rear View Monitor may not
function if:
the trunk lid is not completely closed
it is raining or snowing heavily, or if
there is thick fog
in a very dark area
the camera is exposed to very strong
white light (white stripes may appear on
the COMAND display)
the surrounding area is lit with fluores-
cent light (the COMAND display can
flicker)
there is a sudden change in tempera-
ture, for example when you drive out of
the cold into a heated garage in winter
(lens condensation)
outside temperatures are very high (lens
condensation)
the camera lens is dirty or covered, see
“Cleaning of the Dynamic Rear View
Monitor lens*” (
page 538)
the rear of your vehicle is damaged. In
this case, have the position and setting
of the camera checked by a qualified
technician. Contact an authorized
Mercedes-Benz Center.
Do not use the Dynamic Rear View Monitor
if the roads are icy, slippery or covered with
snow. The vehicle could slip causing the ac-
tual vehicle position to deviate from the one
shown on the COMAND display.
416 Controls in detailDriving systemsThe red 10 in (0.25 m) guide line4, the
yellow 39 in (1 m) guide line3 and the
yellow 13 ft (4 m) guide line2 correspond
to the relevant distance from the rear of
the vehicle. The yellow and blue guide lines
for vehicle width1 show the required
width for the vehicle.
5Blue guide lines for straight driving
6Symbol for “reverse parking”
7Yellow and red guide lines for cornering
When you turn the steering wheel out of
the straight-ahead position, the positions
of the yellow and red guide lines7
change depending on the steering wheel’s
position. The space required by the vehicle
for reverse cornering is indicated by yellow
and red guide lines7.Backing in straight
Switch on the ignition (
page 315).
Switch on COMAND (
page 79).
Move gear selector lever to position R
(reverse gear).
Use the COMAND controller
(page 82) to select “reverse parking”
function 6.
You will see the guide lines for reverse
parking on the COMAND display.
The desired parking space is wide
enough if nothing is inside the yellow
and blue guide lines1 of your intend-
ed driving path or protrudes into this
area.
Back in straight carefully.
Warning!
G
Please note that objects which do not touch
the ground, such as the bumper of a vehicle
parked behind you, a trailer hitch, or the
back of a truck, may appear to be further
away than they actually are. In this case, you
should not use the guide lines to judge dis-
tance as the use of the guide lines to judge
distance increases the risk of impacting the
objects.
Even when the object you approach is di-
rectly on the ground (and nothing on the ob-
ject extends above the ground beyond the
object's contours directly touching the
ground) and no objects that do not touch
the ground, such as the bumper of a vehicle
parked behind you, a trailer hitch, or the
back of a truck are in the path, do not ap-
proach the object on the ground any closer
than red guide line4.
i
The Dynamic Rear View Monitor must be ac-
tivated in the instrument cluster control system
in order for it to be switched on (
page 253).
!
While parking, do not approach any obsta-
cles closer than indicated by red guide line4.
418 Controls in detailDriving systems
Use the COMAND controller
(page 82) to select “parallel parking”
function2.
You will see the guide lines for parallel
parking on the COMAND display.
Back up carefully parallel to parked car
until the respective vertical blue guide
line1 is at the end of the parked vehi-
cle next to you.
Stop the vehicle.1Vertical blue guide line
3Extended blue guide line
4Blue guide lines for vehicle contour
With the vehicle at a standstill, turn
steering wheel in parking direction until
blue guide lines3 and 4 appear and
the rectangle formed by guide lines 4
shows the desired parking position. If
another vehicle is located next to you,
the extended blue guide line4 must
just touch the corresponding vertical
blue guide line1.
Warning!
G
If the respective vertical guide line1 is not
yet located at the end of the parked vehicle
and you are already turning into the parking
space, you could collide with the parked ve-
hicle. Stop the parking procedure immedi-
ately. Pull out of the parking space and start
the parking procedure over again.
i
If an obstacle is inside of or protrudes into
the area marked by blue guide lines4 for the
vehicle, the parking space is too small for the ve-
hicle.
i
If you turn the steering wheel too far, the
message “Steering wheel turned too far. Please
adjust steering wheel” appears on the COMAND
display. Turn the steering wheel back until the
message disappears and the extended blue
guide line4 intersects with vertical blue guide
line1.
If you back up using the wrong wheel angle, the
following appears in the COMAND display:
“Steering wheel turned too far. Park Assist dis-
abled.”. Pull out of the parking space and start
the parking procedure over again.
420 Controls in detailDriving systemsNight View Assist*
Night View Assist illuminates the road with
infrared light in addition to the normal
headlamps.
A camera at the top of the windshield mea-
sures the infrared light and shows a
black-and-white image on the multifunc-
tion display. The image on the multifunction display cor-
responds to a road lit up by high-beam
headlamps.The Night View Assist image on the multi-
function display is not impaired
by the headlamps of approaching vehi-
cles
if you cannot switch on the high beams
due to oncoming traffic
As a result, you can better follow the
course of the road and detect obstacles
earlier on.
The camera is at the top of the windshield.
1Night View Assist camera
Warning!
G
Night View Assist is only an aid to support
you while driving and cannot substitute your
careful attention. Do not rely on the display
of the Night View Assist; instead, continue
to look through the windshield. You are al-
ways responsible for safety and must drive
in accordance with traffic conditions. Other-
wise, you could endanger yourself and oth-
ers.
If it is foggy, raining or snowing, the clarity of
the Night View Assist image on the multi-
function display may be diminished.
Warning!
G
Night View Assist cannot record objects im-
mediately in front of or next to the vehicle.
When maneuvering, continue to look
through the windshield. Make sure that no
persons or animals are in or near the area in
which you are maneuvering.
i
Infrared light is invisible to the human eye
and can therefore remain permanently switched
on without blinding oncoming traffic.
430 Controls in detailAutomatic climate controlDeactivating
Press button; (
page 426) up or
down.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect, except air recirculation mode
stays off.
Windshield fogged on the outside
Switch the windshield wipers on
(page 351).
Press buttonU (
page 426) up or
down.
The indicator lamp on the button
comes on.
Rear window defroster
Activating
Switch on the ignition (
page 315).
Press button< (
page 426) up or
down.
The indicator lamp on the button
comes on.
Deactivating
Press button< (
page 426) up or
down.
The indicator lamp on the button goes
out.
Maximum cooling MAXCOOL (USA only)
If U is selected on both the left and
right side and there is a high demand for
cooling, the display “MAXCOOL” appears
in the COMAND display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof or tilt/sliding panel*
are closed).
!
The rear window defroster uses a large
amount of power. To keep battery drain to a min-
imum, switch off the defroster as soon as the
rear window is clear.
i
The defroster is automatically deactivated
after some time of operation depending on the
outside temperature.Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.
i
If the rear window defroster switches off too
soon and the indicator lamp goes out, this indi-
cates that too many electrical consumers are op-
erating simultaneously and the load on the
battery is reducing available voltage. The system
responds automatically by deactivating the rear
window defroster.
i
Maximum cooling MAXCOOL is only avail-
able when the engine is running.
431 Controls in detail
Automatic climate control
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving in a
tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
Activating: Press button,
(page 426) up or down.
The indicator lamp on the button
comes on.
Deactivating: Press button,
(page 426) up or down.
The indicator lamp on the button goes
out.Air recirculation mode with conve-
nience closing or opening feature
Warning!
G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 231) is activated, or
press button;.
i
The air recirculation mode is activated auto-
matically at high outside temperatures.
The indicator lamp on button, is not lit when
the air recirculation mode is automatically acti-
vated.
A quantity of outside air is added when the cool-
ing demand is not at maximum.
If the air conditioning has been turned off
(
page 231) or the outside temperature is be-
low 41°F (5°C), the air recirculation mode will
not switch on automatically.
i
The manually selected air recirculation
mode is deactivated automatically:
after 5 minutes if the outside temperature is
below approximately 41°F (5°C)
after 5 minutes if the air conditioning is
turned off
after 30 minutes if the outside temperature
is above approximately 41°F (5°C)
Warning!
G
Never operate the side windows and the
tilt/sliding sunroof or tilt/sliding panel* if
there is the possibility of anyone being
harmed by the closing procedure.
Vehicles with tilt/sliding sunroof:
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by pressing
the respective window switch. The closing of
the tilt/sliding sunroof can be immediately
halted by moving the tilt/sliding sunroof
switch in the overhead control panel in any
direction.
Vehicles with panorama roof*:
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows or the tilt/sliding panel can be
immediately halted by releasing
button,.