Mercedes-Benz Metris Operator's Manual page 161

The rear view camera may show obstacles in
perspectival distortion, incorrectly or not at all.
The rear view camera cannot display all objects
located very near and/or under the rear
bumper. It does not warn you of a collision, per-
sons or objects.
Under the following circumstances, the rear
view camera will not function, or will function in
a limited manner:
if the tailgate or rear door is open
R
if it is raining very heavily or snowing, or it is
R
foggy.
at night or in very dark places
R
if the camera is exposed to very bright light.
R
White lines may appear in the camera image.
if the area is lit by fluorescent light or LED
R
lighting. The camera image may flicker.
if the camera lens fogs up, e.g. when driving
R
into a heated garage in winter, causing a rapid
change in temperature.
if the camera lens is dirty or obstructed.
R
Observe the notes on cleaning (
if the rear of the vehicle is damaged. In this
R
case, have the camera position and setting
checked at a qualified specialist workshop.
Do not use the rear view camera in these situa-
tions. You could otherwise injure others or dam-
age objects and the vehicle while parking and
maneuvering.
The field of vision and other functions of the rear
view camera may be restricted due to additional
accessories on the rear of the vehicle (e.g.
license plate holder, rear-mounted bicycle
rack).
Guide lines are always shown at road level. In
trailer mode, the guide lines are shown at the
level of the trailer coupling.
If you change wheel size, make sure they corre-
spond to the correct wheel size category
( page 267). If the category is changed without
Y
recoding the control units in the vehicle, the rear
view camera cannot be precisely calibrated. The
guide lines at road level or at the level of the
trailer tow hitch will not be displayed correctly.
In vehicles with a tailgate, the rear view camera
is protected from raindrops and dust by means
of a flap. When the rear view camera is activa-
ted, this flap opens.
The flap closes again when:
you have finished the maneuvering process
R
you switch off the engine
R
For technical reasons, the flap may remain open
briefly after the rear view camera has been
deactivated.
Switching the rear view camera on or
off
To switch on: make sure that the key is in
X
position 2 in the ignition lock.
Shift the transmission to position R.
X
On vehicles with a tailgate, the rear view cam-
page 257).
era flap opens. The audio display shows the
Y
area behind the vehicle. The rear area shown
is divided by guide lines.
In vehicles with a trailer coupling installed, the
function mode of the rear view camera can be
switched over when the trailer is reached. The
rear view camera then changes the viewing
angle and shows a locating aid for the ball cou-
pling of the trailer tow hitch to help reach the
drawbar.
To switch function mode: select and con-
X
firm "Reverse parking" function : or "Cou-
pling up a trailer" function ; using the audio
system control knob.
Information on the audio system control knob
can be found in the separate operating
instructions.
The symbol of the selected function is high-
lighted.
To switch off: shift the transmission to posi-
X
tion N or D.
The dynamic guide lines are hidden and after
about 15 s the rear view camera switches
itself off.
or
Drive forwards more than about 30 ft (10 m).
X
or
Drive forwards faster than 6 mph (10 km/h).
X
Driving systems
159
Z