Page 409 of 705

408 Controls in detailDriving systemsSwitching Parktronic system on/off
The Parktronic system can be switched off
manually.
The Parktronic button with the indicator
lamp is on the control panel on the
right-hand side of the instrument cluster.
1Parktronic button
2Indicator lamp
Switching off the Parktronic sys-
tem: Press button 1.
Indicator lamp 2 comes on.
Switching on the Parktronic system:
Press button 1 again.
Indicator lamp 2 goes out.
Parktronic system malfunction
If only the red distance segments illumi-
nate and an acoustic warning sounds,
there is a malfunction in the Parktronic
system. The Parktronic system will auto-
matically switch off after 20 seconds and
the indicator lamp in the Parktronic switch
comes on.
Have the Parktronic system checked
by an authorized Mercedes-Benz Cen-
ter as soon as possible.
If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty or
there is an interference from other radio or
ultrasonic signals. The Parktronic system
will automatically switch off after 20 sec-
onds and the indicator lamp in the Park-
tronic switch comes on.
Switch off the ignition (
page 315).
Clean the Parktronic system sensors
(page 538).
Switch on the ignition.
or
Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.
i
The Parktronic system is automatically
switched on when the ignition is switched on
(
page 315).
Page 410 of 705

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).
Page 411 of 705

410 Controls in detailDriving systemsRange of the sensors
The sensors of the Park Assist system are
integrated in the front and rear bumpers.
Make sure that the bumpers are clear of
dirt, ice and slush in the area of the sen-
sors, as otherwise, Park Assist may not
function properly, see “Cleaning the Park
Assist* system sensors” (
page 538).Front sensors
Rear sensors
i
Due to the sensors’ broad detection range,
it is possible that Park Assist also detects the fol-
lowing obstacles and issues a warning:
obstacles in the ground, e.g. sewer canal
covers, rails, bumps in the road or gutters
obstacles moving upward quickly, e.g. rolling
garage doors
Center
approx. 40 in (100 cm)
Corners
approx. 24 in (60 cm)
Center
approx. 50 in (125 cm)
Corners
approx. 24 in (60 cm)
!
While parking, pay particular attention to ob-
jects over or underneath the sensors, e.g. flower
boxes, an elevated crossbar or a trailer tow
hitch. Park Assist does not detect such nearby
objects. You could otherwise damage the vehicle
or the objects.
Page 412 of 705

411 Controls in detail
Driving systems
Warning indicators
Visual signals indicate to the driver the rel-
ative distance between the sensors and an
obstacle.
The warning indicator for the front area is
in the instrument cluster. The warning indi-
cator for the rear area is on the roof liner in
the rear.
1Left side of the vehicle
2Right side of the vehicle
3Indicator
Each warning indicator is divided into five
yellow and two red distance segments for
either side of the vehicle.
If yellow indicators 3 under the segments
are lit, Park Assist is ready to measure.The position of the gear selector lever de-
termines which warning indicators will be
activated.
As your vehicle approaches an object, one
or more distance segments will illuminate,
depending on the distance. When the sev-
enth distance segment illuminates, you
have reached the minimum distance.
Front area:
As soon as the first red segment lights
up, you will hear an intermittent warn-
ing tone for approx. two seconds. Once
the second red segment lights up, you
will hear a continuous warning tone.
You have reached the minimum dis-
tance.
Rear area:
As soon as the first red segment lights
up, you will hear an intermittent warn-
ing tone for approx. two seconds. Once
the second red segment lights up, you
will hear a continuous warning tone.
You have reached the minimum dis-
tance.
Gear selector
lever position
Warning indicator
D
Front area activated
R
Front and rear area
activated
N
With the electric park-
ing brake engaged:
neither activated.
With the electric park-
ing brake released:
front and rear area acti-
vated.
P
Neither activated
i
During strong rainfall, the warning indicators
and warning tones may be triggered, for exam-
ple, by water splashing into the area of the sen-
sors.
Page 413 of 705

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).
Page 414 of 705

413 Controls in detail
Driving systems
Dynamic Rear View Monitor*
The Dynamic Rear View Monitor is an elec-
tronic and visual parking aid. It shows you
the area behind the vehicle on the
COMAND display.
In addition, the Dynamic Rear View Moni-
tor contains guide lines to help you with re-
verse parking (back-in parking) and
parallel parking.
The area behind the vehicle is displayed as
a reverse-mirror image similar to the view
in a rear-view mirror.The Dynamic Rear View Monitor is in the
handle strip of the trunk lid.
1Dynamic Rear View Monitor
View through the camera
i
The image from the Dynamic Rear View
Monitor is shown on the COMAND display
(
page 31).
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. The use of the guide lines to judge
distance increases the risk of impacting the
objects.
Page 415 of 705

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.
Page 416 of 705

415 Controls in detail
Driving systems
Switching on Dynamic Rear View Moni-
tor
Switch on the ignition (
page 315).
Switch on COMAND (
page 79).
Move gear selector lever to position R
(reverse gear).
The COMAND display will show the
area behind the vehicle with guide lines
to help you reverse into a parking
place.
Reverse parking (back-in parking)This function helps you when you are re-
versing in a straight line or backing in at
any angle.
The space required by the vehicle for re-
versing is shown by guide lines.
When you turn the steering wheel to a
straight-ahead position, you will see the
guide lines on the COMAND display in the
following order:
1Yellow and blue guide lines for vehicle
width
2Yellow 13 ft (4 m) guide line
3Yellow 39 in (1 m) guide line
4Red 10 in (0.25 m) guide line
This may cause injury to you or others, or
damage the vehicle or objects.
Mounting tires/rims of other specification
than the original equipment tires/rims may
impair the function of the Dynamic Rear
View Monitor. Contact an authorized
Mercedes-Benz Center.Warning!
G
Use of Dynamic Rear View Monitor can be
dangerous if you are color-blind or have im-
paired color vision.
Only use Dynamic Rear View Monitor if you
can see and distinguish all colored guide
lines shown by Dynamic Rear View Monitor
on the COMAND display.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).
i
If you activate a different function on the
driver’s COMAND controls while reverse parking
or parallel parking, the image from the back-up
camera is interrupted.
To reactivate the camera, take the vehicle out of
reverse gear and then re-engage reverse gear
again.