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Rear view camera
General notes
Rear view camera C is an optical parking and
maneuvering aid. It uses guide lines to show
the area behind your vehicle in the Audio/
COMAND display.
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
i The text shown in the Audio/COMAND
display depends on the language setting.
The following are examples of rear view
camera messages in the Audio/COMAND
display.
Observe the notes on cleaning ( Y
page 318).
Important safety notes
The rear view camera is only an aid. It is not a
replacement for your attention to your imme-
diate surroundings. You are always responsi-
ble for safe maneuvering and parking. When
maneuvering or parking, make sure that there
are no persons, animals or objects in the area
in which you are maneuvering.
Under the following circumstances, the rear
view camera will not function, or will function
in a limited manner: R
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
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
Observe the notes on cleaning
( Y
page 318) R
if the rear of your vehicle is damaged. In this
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 X
To activate: make sure that the SmartKey
is in position 2 in the ignition lock. X
Make sure that the Activation by R
gear function is selected in Audio 20/
COMAND; see the Digital Operator's Man-
ual. X
Engage reverse gear.
The area behind the vehicle is shown with
guide lines in the Audio 20/COMAND dis-
play.
The image from the rear view camera is
available throughout the maneuvering
process.
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 Audio 20/COMAND dis-
play
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: R
very close to the rear bumper R
under the rear bumper R
in the area immediately above the tailgate
handle208
Driving systems
Driving and parking

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 C flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp C . There are no further warning tones.
Switching on Blind Spot Assist X
Make sure that Blind Spot Assist is activa-
ted in the on-board computer
( Y
page 228). X
Turn the SmartKey to position 2 in the igni-
tion lock.
Warning lamps C in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in
front of your vehicle by means of multifunc-
tion camera C which is attached behind the
top of the windshield. Active 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
40 mph and 120 mph (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 in the steer-
ing wheel for up to 1.5 seconds. Important safety notes
G WARNING
Lane Keeping Assist may not always clearly
recognize lane markings.
In this case, 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 stay in lane, in particular if
warned by Lane Keeping Assist.
G WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is
a risk of an accident.
You should always steer, brake or accelerate
yourself, in particular if warned by Lane Keep-
ing Assist.
If you fail to adapt your driving style, Lane
Keeping Assist can neither reduce the risk of
an accident nor override the laws of physics.
Lane Keeping Assist cannot take into account
the road, traffic and weather conditions. Lane
Keeping Assist is merely an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
The Lane Keeping Assist does not keep the
vehicle in the lane.
The system may be impaired or may not func-
tion if: R
there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray R
there is glare, e.g. from oncoming traffic,
the sun or reflection from other vehicles
(e.g. if the road surface is wet) R
the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera R
there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con-
struction work Driving systems 215
Driving and parking Z

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops ( Y
page 25).
Important safety notes
G WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
G WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The
operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messages
or warnings from certain systems in the mul-
tifunction display. You should therefore make sure your vehicle is operating safely at all
times.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration ( Y
page 31).
Displays and operation
Instrument cluster lighting The light sensor in the instrument cluster
automatically controls the brightness of the
multifunction display. In daylight, the displays
in the instrument cluster are not illuminated.
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is located on the
bottom left of the instrument cluster
( Y
page 31). X
Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to the X , ` or
X position, the brightness is dependent
upon the brightness of the ambient light.
Speedometer with segments
The speedometer is divided into segments
only on vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available. R
DISTRONIC PLUS activated ( Y
page 186):
One or two segments in the set speed
range light up. R
DISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
The segments between the speed of the
vehicle in front and the stored speed light
up.218
Displays and operation
On-board computer and displays

X
Press the d or c button to select the
Acoustic Lock
function.
If the Acoustic
Lock function is activated,
the multifunction display shows the 7
symbol in orange. X
Press the v button to save the setting.
Convenience Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available in Canada.
This function is only available when the vehi-
cle is equipped with the electrical fold-in func-
tion.
When you activate the Auto. Mirror Fold‐
ing function, the exterior mirrors are folded
in when the vehicle is locked. If you unlock the
vehicle and then open the driver's or front-
passenger door, the exterior mirrors fold out
again.
If you have switched on the Auto. Mirror
Folding function and you fold in the exterior
mirrors using the button on the door
( Y
page 109), they will not fold out automat-
ically. The exterior mirrors can then only be
folded out using the button on the door. X
Press the Y or e button on the steer-
ing wheel to select the Sett.
menu.X
Press the d or c button to select the
Convenience
submenu.X
Press v to confirm.X
Press the d or c button to select the
Auto. Mirror Folding
function.
If the Auto. Mirror Folding
function is
switched on, the multifunction display
shows the exterior mirror in orange. X
Press the v button to save the setting.
Restoring the factory settings X
Press the Y or e button on the steer-
ing wheel to select the Sett.
menu.X
Press the d or c button to select the
Factory Setting
submenu. X
Press v to confirm.
The Reset All Settings?
function
appears. X
Press the d or c button to select No
or Yes . X
Press the v button to confirm the selec-
tion.
If you have selected Yes , the multifunction
display shows a confirmation message.
For safety reasons, the Daytime Running
Lights function in the Light submenu is only
reset if the vehicle is stationary.
AMG menu (Mercedes-AMG vehicles)
WARMUP
C
Digital speedometer D
Gear indicator

Stopping the RACETIMER X
Press the 8 button on the steering
wheel. X
Confirm Yes with v .
The RACETIMER interrupts timing if you stop
the vehicle and turn the SmartKey to position
1 in the ignition lock. If you turn the key to
position 3 and then press v to confirm
Start , timing is continued.
Resetting the current lap X
Stop the RACETIMER. X
Press the Y or e button to select
Reset Lap
.X
Press v to reset the lap time to "0".
Deleting all laps
If you switch off the engine, the RACETIMER is
reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individual stored laps. If
you have stopped 16 laps, the current lap
does not have to be reset. X
Reset the current lap. X
Press v to confirm Reset .
Reset Race-Timer?
appears in the multi-
function display. X
Press the d button to select Yes and
press the v button to confirm.
All laps are deleted. Overall statistics
C
RACETIMER overall evaluation D
Total time driven

Display messages
Possible causes/consequences and P Solutions
I (USA
only)
$ (Canada
only)
Tur n On the Igni‐
tio n to Releas e
the Parkin g Brake The red I (US A only) or $ (Canada only) indicato r lamp
lights up.
You attempte d to release th e electric parkin g brak e while th e igni-
tion was switched off. X
SmartKey: tur n th e SmartKey to position 1 in th e ignition lock.X
KEYLESS-GO: switch on th e ignition .
I (USA
only)
$ (Canada
only)
Please Releas e
Parkin g Brake The red I (US A only) or $ (Canada only) indicato r lamp
flashes and a warnin g tone sounds. A condition fo r automati c
release of th e electric parkin g brak e is no t fulfilled ( Y
page 173).
You are drivin g wit h th e electric parkin g brak e applied.X
Releas e th e electric parkin g brak e manually.
The red I (US A only) or $ (Canada only) indicato r lamp
flashes and a warnin g tone sounds.
You are usin g th e electric parkin g brak e fo r emergenc y brakin g
( Y
page 173).
I (USA
only)
$ (Canada
only)
Parkin g Brake See
Operator' s Manual The yello w $ warnin g lamp lights up.
The electric parkin g brak e is malfunctioning.
To apply: X
Switc h th e ignition off. X
Press th e electric parkin g brak e handle fo r at leas t te n seconds.X
Shift th e transmissio n to position P .X
Consult a qualified specialist workshop .
The yello w $ warnin g lamp and th e red I (US A only)
or $ (Canada only) indicato r lamp ligh t up.
The electric parkin g brak e is malfunctioning.
To release: X
Switc h of f th e ignition and tur n it bac k on .X
Releas e th e electric parkin g brak e manually.
or X
Releas e th e electric parkin g brak e automatically ( Y
page 173).
If th e electric parkin g brak e still canno t be released:X
Do no t drive on .X
Consult a qualified specialist workshop .Display messages 23 9
On-board computer and displays Z

Vehicle Display messages
Possible causes/consequences and P Solutions
Depress Brake to
Start Engine You have attempted to start the engine with the transmission in
position N without depressing the brake pedal. X
Depress the brake pedal.
To Deselect P or
N, Depress Brake
and Start Engine You have attempted to shift the transmission to position R or D
without starting the engine. X
Start the engine. X
Depress the brake pedal.
i It is only possible to shift the transmission from position P to
the desired position if you depress the brake pedal. Only then
can the parking lock be deactivated. If you do not depress the
brake pedal, the DIRECT SELECT lever can still be moved but the
parking lock remains engaged.
i At transmission fluid temperatures below

Problem
Possible causes/consequences and P Solutions
%
The yellow ABS warning
lamp is lit while the
engine is running. ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. Therefore, BAS (Brake Assist), COLLISION PREVENTION
ASSIST PLUS, ESP ®
(Electronic Stability Program), the HOLD func-
tion and hill start assist are also deactivated, for example.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident. X
Observe the additional display messages in the multifunction
display. X
Drive on carefully. X
Visit a qualified specialist workshop immediately.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic trans-
mission, will not be available.Warning and indicator lamps in the instrument cluster 269
On-board computer and displays Z

Problem
Possible causes/consequences and P Solutions
%
The yellow ABS warning
lamp is lit while the
engine is running. ABS is temporarily unavailable. Therefore, BAS, COLLISION PRE-
VENTION ASSIST PLUS, ESP ®
, EBD (electronic brake force distri-
bution), the HOLD function and hill start assist are also deactiva-
ted, for example.
Possible causes are: R
Self-diagnosis is not yet complete. R
The on-board voltage may be insufficient.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is a risk of an accident. X
Carefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on: X
Observe the additional display messages in the multifunction
display. X
Drive on carefully. X
Visit a qualified specialist workshop immediately.270
Warning and indicator lamps in the instrument cluster
On-board computer and displays

Problem
Possible causes/consequences and P Solutions
%
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone also
sounds. EBD is malfunctioning. Therefore, ABS, BAS, COLLISION PREVEN-
TION ASSIST PLUS, ESP ®
, the HOLD function and hill start assist
for example, are also not available.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident. X
Observe the additional display messages in the multifunction
display. X
Drive on carefully. X
Visit a qualified specialist workshop immediately.
' (USA only)
M (Canada only)
%