
Driving systemsDisplay messagesPossible causes/consequences and M SolutionsÀ
Attention Assist:
Drowsiness
detectedBased on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.XIf necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest.
À
Attention Assist
InoperativeATTENTION ASSIST is inoperative.XVisit a qualified specialist workshop.Á
Night View Assist
InoperativeNight View Assist Plus is faulty.XVisit a qualified specialist workshop.Á
Night View Assist
Currently
UnavailableThe temperature of the camera is too high.XWait until you see the Night View Assist Available
Again display message.
You can also:
XFold the camera cover down ( Y page 457).XAdjust the air distribution of the automatic air conditioning
upwards.Á
Night View Assist
Lights Must Be Set
to AUTO or ONA condition for activating Night View Assist Plus has not been met.XTurn the light switch to c or L .Á
Night View Assist
Not in Reverse GearA condition for activating Night View Assist Plus has not been met.XShift the transmission to P, N or D.Á
Night View Assist
Lights ON or AUTO,
Not in R GearA condition for activating Night View Assist Plus has not been met.XTurn the light switch to c or L .XShift the transmission to P, N or D.Display messages401On-board computer and displaysZ

Display messagesPossible causes/consequences and M SolutionsÁ
Night View Assist
Only When It Is
DarkYou have attempted to activate Night View Assist Plus in the
daytime.
Night View Assist Plus can only be activated when it is dark.¨
Vehicle RisingYour vehicle is adjusting to the level you have selected.¨
Vehicle Rising
Please Wait BrieflyThe vehicle level is too low when the vehicle is stationary. A
warning tone also sounds.XDo not pull away.
The vehicle level is set when the display message disappears.¨
STOP Car Too LowYou have pulled away while the vehicle level is still too low.
AIRMATIC sets the vehicle to the selected level after a short
period.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XEngage the parking brake.XWait until the display message disappears before pulling away.GRisk of accident
AIRMATIC is faulty. A warning tone also sounds.
XDo not drive faster than 50 mph (80 km/h).XMake only slight steering movements. The front fender or the
tires could be damaged if the steering movement is too large.XListen for scraping sounds.XPull over and stop the vehicle safely, paying attention to road
and traffic conditions, and select a higher vehicle level.
The vehicle may be raised, depending on the type of
malfunction.XVisit a qualified specialist workshop.¨
MalfunctionGRisk of accident
The AIRMATIC function is restricted. The vehicle's handling
characteristics may be affected.
XDo not drive faster than 50 mph (80 km/h).XVisit a qualified specialist workshop.402Display messagesOn-board computer and displays

Vehicle equipment
i This manual describes all the standard
and optional equipment of your vehicle
which was available at the time of
purchase. Country-specific differences are
possible. Bear in mind that your vehicle
may not feature all functions described
here. This also refers to safety-related
systems and functions.
Loading guidelines
GWarning!
Always fasten items being carried as securely
as possible. Use cargo tie-down rings and
fastening materials appropriate for the weight
and size of the load.
In an accident, during hard braking or sudden
maneuvers, loose items will be thrown around
inside the vehicle. This can cause injury to
vehicle occupants unless the items are
securely fastened in the vehicle.
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
transporting cargo. Do not pile luggage or
cargo higher than the seat backrests.
The trunk is the preferred place to carry
objects.
Never drive a vehicle with the trunk open.
Deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in
unconsciousness and death.
The handling characteristics of a laden
vehicle are dependent on the distribution of
the load within the vehicle. For this reason,
you should observe the following notes when
transporting a load:
R when transporting a load, never exceed the
maximum permissible gross vehicle weight
or the permissible axle loads for the vehicle
(including occupants). The values are
specified on the vehicle identification plate
on the B-pillar of the driver's door.
R position heavy loads as far forwards as
possible and as low down in the trunk as
possible.
R the load must not protrude above the upper
edge of the seat backrests.
R always place the load against the rear seat
backrests.
R always place the load behind unoccupied
seats if possible.
R secure the load with sufficiently strong and
wear-resistant lashing material. Pad sharp
edges for protection.
Stowage compartments
Important safety notes
GWarning!
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
storing objects in the vehicle. Put luggage or
cargo in the trunk if possible.
Do not pile luggage or cargo higher than the
seat backrests.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
R braking
R vehicle maneuvers
R an accident
Stowage compartments in the front
Glove box
i Depending on the vehicle's equipment,
you will find the following installed in the
glove box: an audio and video AUX jack, a
USB socket or Media Interface, a universal
interface for portable audio equipment, e.g.
for an iPod or USB device, and a bracket for
a remote control (see the COMAND section
of this Operator's Manual.
422Stowage compartmentsLoading, stowing and features

Vehicle remote opening
If you have unintentionally locked your
vehicle (e.g. the SmartKey is inside the
vehicle) and a replacement key is not
available:
XContact the following service hotlines:
R USA: Response Center under the
number 1-888-990-9007
R Canada: Customer Service under
1-888-923-8367
You will be asked for your password.XReturn to your vehicle at the time arranged
with the Response Center.XPull the trunk handle for at least 20
seconds until the indicator lamp in the SOS
button ( Y page 433) flashes.
The Connecting Call message appears in
the multifunction display.
Alternatively, the vehicle can also be opened
via the Internet in the "Owners Online"
section using your ID number and
password 32
.
i Vehicle remote unlocking is only possible
if the corresponding cellular phone
network is accessible.
The SOS button flashes and the
Connecting Call message appears in the
multifunction display to confirm that the
command for vehicle remote unlocking has
been received.
If you pull the trunk handle for more than
20 seconds before receiving authorization
for remote unlocking, you must wait 15
minutes before you can pull on the handle
of the trunk lid again.
Remote vehicle locking in an
emergency
If you forget to lock your vehicle but are no
longer in the vicinity of the vehicle, it can be
locked for you by the Response Center.
The vehicle can be locked remotely up to four
days after the ignition was last switched off.
XContact the following service hotlines:
R USA: Response Center under
866-990-9007
R Canada: Customer Service under
1-888-923-8367
You will be asked for your PIN.
The next time you are in your vehicle and
switch on the ignition, the Tele Aid Doors
Locked Remotely message appears in the
multifunction display.
i The vehicle remote locking feature is
available when the relevant mobile phone
network is available and data connection is
possible.
Automatic retrieval of vehicle data for
the service due date
Your vehicle comes with a function which
improves the servicing of the vehicle
considerably. Shortly before the service due
date, mbrace sends important vehicle
maintenance information to your authorized
Mercedes-Benz Center. In this way, the
Mercedes-Benz Center is informed of the
work required. This happens automatically
and does not require any action from the
driver. This function allows the Mercedes-
Benz Center to improve appointment
planning significantly and ensures that your
vehicle receives the best service possible.
i The "Automatic retrieval of vehicle data
for the service due date" function is only
available if the relevant mobile phone
network is available and a data connection
is possible.
32 USA only.438FeaturesLoading, stowing and features

interference that may cause undesired
operation.
Unauthorized modification of this device
could void the user's authority to legally
operate the device.
Programming the remote control
Programming
GWarning!
Only press the transmitter button on the
integrated remote control if there are no
persons or objects present within the sweep
of the garage door. People could otherwise be
injured by the movement of the door.
Remote control in the rear-view mirror
Garage door remote control A is not part of
the garage door opener.
iTo achieve the best result, insert new
batteries in garage door remote control
A of your garage door drive before
programming.
XErase the memory of the integrated remote
control (Y page 442) before programming
it for the first time.
XTurn the key to position 2 in the ignition
lock.
XPress and hold one of transmitter
buttons ; to ? on the integrated remote
control.
After a short time, indicator lamp : will
start flashing. It flashes about once per
second.
iIndicator lamp : flashes immediately
the first time that the transmitter button is
programmed. If this transmitter button has
already been programmed, indicator
lamp : will only start flashing at a rate of
once per second after 20 seconds have
elapsed.
XKeep the transmitter button depressed.XPoint transmitter button B of garage door
remote control A towards the transmitter
buttons on the rear-view mirror at a
distance of 2 to 12 inches (5 to 20 cm).
iThe distance between garage door
remote control A and the integrated
garage door opener depends on the system
of the garage door drive. You might require
several attempts. You should test every
position for at least 20 seconds before
trying another position.
XKeep transmitter button B on garage door
remote control A pressed until indicator
lamp : starts to flash rapidly.
The programming has been successful if
indicator lamp : flashes rapidly.
XRelease transmitter buttons ;, = or ?
on the integrated remote control and
transmitter button B on the garage door
remote control.
If indicator lamp : goes out after
approximately 20 seconds and has not
flashed rapidly:
XRelease transmitter buttons ;, = or ?
on the integrated remote control and
transmitter button B on the garage door
remote control.
XRepeat the procedure for the other
transmitter buttons. When doing so, vary
the distance between the garage door's
remote control and the transmitter buttons
in the rear-view mirror.
iIf the garage door system works with a
rolling code, you must synchronize the
remote control integrated into the rear-
440FeaturesLoading, stowing and features

view mirror with the garage door system
receiver after programming.
You will find further information in the
garage door opening system's operating
instructions, e.g. the sections on
"Synchronizing the transmitter" or
"Registering a new transmitter". You can
also call the hotline mentioned above.
Notes on programming the remote
control
Canadian radio frequency laws require a
"break" (or interruption) of the transmission
signals a few seconds after broadcasting.
Therefore, these signals may not last long
enough for the integrated remote control to
recognize the signal during programming.
Comparable with Canadian law, some U.S.
garage door openers also have a built-in
"interruption".
If you live in Canada or have difficulties
programming the garage door opener
(regardless of where you live) when using the
programming steps (see above), proceed as
follows:XPress transmitter button ( ;, = or ?) and
hold it down during the following steps until
the setup has been completed
successfully.XAt the same time, press transmitter button
B of the garage door remote control for
two seconds, then release it for two
seconds, then press it again for two
seconds.XRepeat this sequence on transmitter
button B of the garage door remote
control until the frequency signal has been
saved.XIf the setup procedure is successful,
indicator lamp : flashes once slowly and
goes out after a few seconds.XContinue with the other programming
steps (see above).Problems when programming
If you have problems when programming the
integrated remote control, please note the
following:
R Check the transmitter frequency of garage
door remote control A (which can usually
be found on the rear of the remote control).
The integrated remote control is
compatible with devices that operate at
frequencies between 280 and 390 MHz.
R Replace the batteries in garage door
remote control A. This increases the
likelihood of garage door remote
control A sending a strong and precise
signal to the integrated remote control on
the rear-view mirror.
R When programming, hold garage door
remote control A at varying distances and
angles from the transmitter button which
you are programming. Try different angles
at a distance of 2 to 12 inches (5 to 30 cm)
or the same angle at different distances.
R If there is another garage door remote
control for the same device, perform the
programming steps again using the remote
control. Before performing these steps,
make sure that new batteries have been
installed in the garage door remote control.
R Align the antenna cable of the garage door
opener unit. This can improve signal
reception/transmission.
Opening or closing the garage door
Once programmed, the integrated remote
control will assume the function of the garage
door system's remote control. Please also
read the operating instructions for the garage
door system.
XTurn the SmartKey to position 2 in the
ignition lock.XPress transmitter button ;, = or ? in the
overhead control panel that you have
programmed to operate the garage door.
Garage door system with fixed code:
indicator lamp : lights up continuously.Features441Loading, stowing and featuresZ

Vehicle equipment
iThis manual describes all the standard
and optional equipment of your vehicle
which was available at the time of
purchase. Country-specific differences are
possible. Note that your vehicle may not be
equipped with all functions described.
Engine compartment
Hood
Opening the hood
GWarning
Do not pull the release lever while the vehicle
is in motion. Otherwise, the hood could be
forced open by passing air flow.
This could cause the hood to come loose and
injure you and/or others.
GWarning
Hybrid vehicles: ensure that you read the
"HYBRID" supplement. You may otherwise fail
to recognize dangers.
GWarning
Do not open the hood when the engine is
overheated. You could be seriously injured.
Observe the coolant temperature gauge to
determine whether the engine may be
overheated. If you see flames or smoke
coming from the engine compartment, move
away from the vehicle. Wait until the engine
has cooled. If necessary, call the fire
department.
GWarning
There is a risk of injury if the hood is open,
even if the engine is not running.
Some engine components can become very
hot.
To avoid the risk of burns, only touch those
components described in the Operator's
Manual and observe the relevant safety notes.
GWarning
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running.
The radiator fan may continue to run for
approximately 30 seconds or may even
restart after the engine has been turned off.
Stay clear of fan blades.
GWarning
The engine is equipped with a transistorized
ignition system. Because of the high voltage,
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system:
Rwith the engine running
Rwhile starting the engine
Rwhen the ignition is switched on and the
engine is turned manually
XMake sure that the windshield wipers are
switched off.
GWarning
The windshield wipers and wiper linkage
could be set in motion.
When the hood is open, you or others could
be injured by the wiper linkage.
Make sure that the windshield wipers are
switched off. Remove the SmartKey or make
sure that no ignition position has been
selected with KEYLESS-GO. All indicator
lamps must be off in the instrument cluster.
446Engine compartmentMaintenance and care

XPull release lever : on the hood.
The hood is released.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield
wipers or the hood.
XPull hood catch handle ; outwards from
the radiator grill as far as it will go and lift
the hood from underneath by the radiator
grill.
! Do not lift the hood by hood catch
handle ;. The handle may otherwise be
damaged.
Closing the hood
GWarning
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure the hood is securely engaged
before driving off. Do not continue driving if
the hood can no longer engage after an
accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and injure you and/or others.
XLower the hood and let it fall from a height
of approximately 8 inches (20 cm).
XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close
it with a little more force.
Radiator
iVehicles with a diesel engine: do not
cover the radiator, for example with a
winter front or bug cover. Otherwise, the
readings of the on-board-diagnostic
system may be inaccurate. Some of these
readings are required by law and must be
accurate at all times.
Engine oil
Notes on the oil level
GWarning
Hybrid vehicles: ensure that you read the
"HYBRID" supplement. You may otherwise fail
to recognize dangers.
Depending on the driving style, the vehicle
consumes up to 0.9 US qt (0.8 l) of oil over a
distance of 600 miles (1,000 km). The oil
consumption may be higher than this when
the vehicle is new or if you frequently drive at
high engine speeds.
Checking the oil level using the oil
dipstick
On vehicles with a 12-cylinder engine, the oil
level can be checked using the on-board
computer. On all other models, the dipstick
must be used to check the engine oil level.
When checking the oil level:
Rpark the vehicle on a level surface.
Rthe engine should be switched off for
approximately five minutes if the engine is
at normal operating temperature.
Engine compartment447Maintenance and careZ