Mercedes-Benz 2015 M-Class Operator's Manual page 227

Under the following circumstances, the rear
view camera will not function, or will function
in a limited manner:
if the 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 bulbs or LED
R
lighting (the display may flicker)
if there is a sudden change in temperature,
R
e.g. when driving into a heated garage in
winter
if the camera lens is dirty or obstructed
R
if the rear of your vehicle is damaged. In this
R
event, have the camera position and setting
checked at a qualified specialist workshop
The field of vision and other functions of the
rear view camera may be restricted due to
additional accessories on the rear of the vehi-
cle (e.g. license plate holder, bicycle rack).
Activating/deactivating the rear view
camera
To activate: make sure that the SmartKey
X
is in position 2 in the ignition lock.
Make sure that the function "show rear
X
view camera display" is selected in
COMAND.
Engage reverse gear.
X
The area behind the vehicle is shown in the
COMAND display with guide lines.
To change the function mode for vehi-
X
cles with trailer tow hitch: using the
Driving systems
COMAND controller, select symbol : for
the "Reverse parking" function or sym-
bol ; for "Coupling up a trailer" (see the
separate COMAND operating instructions).
The symbol of the selected function is high-
lighted.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to P or after
driving forwards a short distance.
Displays in the COMAND display
The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The rear view camera does not show
objects in the following positions:
very close to the rear bumper
R
under the rear bumper
R
in the area immediately above the tailgate
R
handle
! Objects not at ground level may appear to
be further away than they actually are, e.g.:
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
R
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline.
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