
Display messagesPossible causes/consequences and M Solutionsh
Check Tire PressureGRisk of accident
The tire pressure in one or more tires has dropped significantly.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 502).XCheck the tire pressure. If necessary, correct the tire pressure
( Y page 487).h
Correct Tire
PressureThe tire pressure is insufficient in at least one of the tires or the
tire pressure difference between the wheels is too great.XCheck the tire pressures at the next opportunity. If necessary,
correct the tire pressure ( Y page 487).
Vehicle
Display messagesPossible causes/consequences and M SolutionsShift to P or N
to startto Start
Engine to Start
EngineYou have attempted to start the engine with the transmission in
position R or D.XShift the transmission to position P or N.Auxiliary Battery
Malfunction
(white display
message)The auxiliary battery for the automatic transmission is no longer
being charged.XVisit a qualified specialist workshop.Auxiliary Battery
Malfunction
(red display message)The auxiliary battery for the automatic transmission is discharged.
If there is a malfunction in the vehicle's electrical system, you may
not be able to change the transmission position.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XConsult a qualified specialist workshop.Apply brake to
Shift from 'P'You have attempted to move the transmission selector lever to
position D, R or N without depressing the brake pedal.XDepress the brake pedal.Door Open
Vehicle Not in ParkThe driver's door is open and the transmission is in position R, N
or D.XShift the transmission to position P.XEngage the parking brake.Display messages409On-board computer and displaysZ

Safety systemsProblemPossible causes/consequences and M Solutions!
The yellow ABS warning
lamp is lit while the
engine is running.GRisk of accident
ABS (Anti-lock Brake System) is deactivated due to a malfunction.
Therefore, BAS (Brake Assist), BAS PLUS (Brake Assist PLUS),
ESP ®
(Electronic Stability Program), EBD (Electronic Brake force
Distribution), PRE-SAFE ®
, PRE-SAFE ®
Brake, the HOLD function
and hill start assist are also deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST 26
is deactivated.
XObserve the additional display messages in the multifunction
display.XDrive on carefully.XVisit a qualified specialist workshop.!
The yellow ABS warning
lamp is lit while the
engine is running.GRisk of accident
ABS is temporarily unavailable. Therefore, ABS, BAS, BAS PLUS,
ESP ®
, EBD, PRE-SAFE ®
, PRE-SAFE ®
Brake, the HOLD function and
hill start assist are also deactivated.
Self diagnosis is not yet complete.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST 26
is deactivated.
XCarefully drive a suitable distance making slight steering
movements 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:
XObserve the additional display messages in the multifunction
display.XDrive on carefully.XVisit a qualified specialist workshop.26 Not available on HYBRID vehicles.Warning and indicator lamps in the instrument cluster415On-board computer and displaysZ

Driving systemsProblemPossible causes/consequences and M Solutions·
The red distance
warning lamp lights up
while the vehicle is in
motion. A warning tone
also sounds.GRisk of accident
A warning is issued if:
R you are approaching a vehicle in front at too great a speed
R DISTRONIC PLUS or PRE-SAFE ®
Brake has detected a stationary
obstacle in your line of travel
XBe prepared to brake immediately.XPay careful attention to the traffic situation. You may have to
brake or take evasive action.
Tires
ProblemPossible causes/consequences and M Solutionsh
USA only:
The yellow combination
low tire pressure
warning lamp/TPMS
malfunction warning
lamp is lit.
Canada only:
The yellow low tire
pressure warning lamp
for the TPMS is lit.GRisk of accident
The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XObserve the additional display messages in the multifunction
display.XCheck the tire pressure. If necessary, correct the tire pressure
( Y page 487).XIf necessary, change a wheel ( Y page 502).h
USA only:
The yellow combination
low tire pressure
warning lamp/TPMS
malfunction warning
lamp flashes for sixty
seconds and then
remains lit.The tire pressure monitor is faulty.XObserve the additional display messages in the multifunction
display.XVisit a qualified specialist workshop.GWarning
Each tire, including the spare tire (if there is one), should be inspected at least every two weeks
when they are cold and pumped to the pressure recommended by the vehicle manufacturer (see
the tire and load data label on the B-pillar on the driver's side or the tire pressure table on the
Warning and indicator lamps in the instrument cluster419On-board computer and displaysZ

Vanity mirror in the sun visor
Mirror light : only functions if the sun visor
is clipped into retainer ; and mirror cover
A has been folded up.
Glare from the side
XFold down the sun visor.XPull sun visor out of retainer ;.XSwing the sun visor to the side.
Rear window roller sunblind
Important safety information
GWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
Rinjure themselves on parts of the vehicle
Rbe seriously or fatally injured through
excessive exposure to extreme heat or cold
Rinjure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
GWarning!
When operating the rear window sunshade
make sure there is no danger of anyone being
harmed by the extending or retracting
procedure.
The extending or retracting procedure can be
immediately halted by briefly pressing rear
window sunshade switch. To reverse direction
of movement, press rear window sunshade
switch again.
Extending/retracting from the driver's
seat
! Make sure that the roller sunblind can
move freely. Otherwise, the roller sunblind
or other objects could be damaged.
At temperatures below -4 ‡ (-20 †), the roller
sunblind cannot be operated.
XTo extend or retract: briefly press
button :.
The roller sunblind fully extends or fully
retracts.
XTo stop: briefly press button : again.
The roller sunblind stops briefly and moves
back into the out-of-use position.
Extending/retracting from the rear
compartment
The switch is located on the rear door control
panel.
Features429Loading, stowing and featuresZ

Cigarette lighterGWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
Rinjure themselves on parts of the vehicle
Rbe seriously or fatally injured through
excessive exposure to extreme heat or cold
Rinjure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
GWarning
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
Make sure any children traveling with you do
not injure themselves or start a fire with the
hot cigarette lighter.
Center console, front
Center console, rear compartment
XTurn the key to position 2 in the ignition
lock.
XPress in cigarette lighter :.
Cigarette lighter : will pop out
automatically when the heating element is
red-hot.
12 V sockets
Points to observe before use
! If you are using all sockets in the vehicle,
make sure that you do not exceed the
maximum current draw of 55 A. Otherwise,
you will overload the fuses.
The sockets can be used for accessories with
a maximum power consumption of 180 W
(15 A), e.g. lamps or for mobile phones.
If you use the sockets for long periods when
the engine is switched off, the battery may
discharge.
Features431Loading, stowing and featuresZ

service subscription to a surveillance
service provider.
R the battery is sufficiently charged.
R the corresponding cellular phone network
is available for transmitting data to the
customer center.
i Determining the location of the vehicle on
a map is only possible if there is sufficient
GPS reception and the vehicle position can
be forwarded to the customer center.
The mbrace system
The mbrace system provides three different
services:
R automatic and manual emergency call
R Roadside Assistance call
R MB info call
To control the volume during an mbrace call,
proceed as follows:
XPress the W or X button on the
multifunction steering wheel.
or
XUse the H volume controller of
COMAND ( Y page 117).
You can find information and a description of
all available features under "Owners Online"
at http://www.mbusa.com 29
System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
GWarning
A malfunction in the system has been
detected if any or all of the following
conditions occur:
R The indicator lamp in the SOS button does
not come on during the system self-test.
R The indicator lamp in Roadside Assistance
button º does not come on during the
system self-test.
R The indicator lamp in Information button
E does not come on during the system
self-test.
R The indicator lamp in the SOS button,
Roadside Assistance button º, or
Information button E remains
illuminated constantly in red after the
system self-test.
R The message Tele Aid Inoperative or
Tele Aid Not Activated appears in the
multifunction display after the system self-
test.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In
case of an emergency, help will have to be
summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R USA: Response Center under the number
1-888-990-9007
R Canada: Customer Service under
1-888-923-8367
Emergency call
Important safety notes
! A license agreement must exist in order
to activate the mbrace service. Make sure
that your system is activated and ready for
use, and press the E MB info call button
to register. If you cannot carry out any of
the steps mentioned, the system may not
be activated.
If you have any questions concerning
activation, please contact one of the
following service hotlines:
R USA: Response Center under
1-888-990-9007
R Canada: Customer Service under
1-888-923-8367
29 USA only.Features433Loading, stowing and featuresZ

pressed the SOS button. Carefully leave the
vehicle and move to a safe location. The
Response Center will automatically contact
local emergency officials with the vehicle's
approximate location if they receive an
automatic SOS signal and cannot make voice
contact with the vehicle occupants.
Roadside Assistance call buttonXOpen the stowage compartment under the
armrest ( Y page 423).XPress and hold Roadside Assistance
button : for more than two seconds.
A call to a Mercedes-Benz Roadside
Assistance Representative is initiated. The
indicator lamp in Roadside Assistance
button : flashes while the call is active.
The Connecting Call message appears in
the COMAND display and COMAND is
muted.
If a connection can be established, the Call
Connected message appears in the
COMAND display.
If a mobile phone network is available and
there is sufficient GPS reception, the mbrace
system transmits data to the Response
Center, for example:
R current location of the vehicle
R vehicle identification number
R vehicle model
R vehicle color
i The COMAND display shows that an
mbrace call is active. You can switch to the
navigation menu by pressing the
S button on COMAND during the call.
Spoken commands are not available.
A voice connection is established between
the Mercedes-Benz Roadside Assistance
Representative and the vehicle occupants.XDescribe the type of assistance needed.
The Mercedes-Benz Roadside Assistance
Representative either sends a qualified
Mercedes-Benz technician or organizes for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center. You may
be charged for services such as repair work
and/or towing. Further details are available
in your mbrace manual.
i If the indicator lamp in MB info call
button : flashes continuously and it was
not possible to establish a voice
connection to the Response Center, then
the mbrace system has failed to initiate a
Roadside Assistance call (e.g. the
corresponding cellular phone network is
not available). The Call Failed message
appears in the multifunction display.
The COMAND display shows the Call
could not be connected! message.
Press W to confirm the message.
XTo end a call: press the ~ button on the
multifunction steering wheel.
or
XPress the corresponding button for ending
a phone call on the COMAND telephone
keypad.
i Sign and Drive services 30
: you are not
charged for services such as jump-starting,
providing a few gallons of fuel for a fuel tank
that has been run dry or changing a flat tire
with the vehicle's own spare tire.
30 USA only.Features435Loading, stowing and featuresZ

MB Info call buttonXThe stowage compartment under the
armrest ( Y page 423).XPress and hold MB info call button : for
more than two seconds.
A call to the Response Center is initiated.
MB info call button indicator lamp :
flashes while the connection is being
established. The Connecting Call
message appears in the multifunction
display. The COMAND display shows the
Information Call Activated message.
The audio system or COMAND is muted.
If a connection can be established, the Call
Connected message appears in the
multifunction display.
The COMAND display shows the
Information Call Activated message.
If a mobile phone network is available and
there is sufficient GPS reception, the mbrace
system transmits data to the Response
Center, for example:
R current location of the vehicle
R vehicle identification number
R vehicle model
R vehicle color
i The COMAND display shows that an
mbrace call is active. You can switch to the
navigation menu by pressing the S
button on COMAND during the call. Spoken
commands are not available.
A voice connection between the Response
Center and the vehicle occupants is
established. You can obtain information on
how to operate your vehicle's systems, on the
location of the nearest authorized Mercedes-
Benz Center, and on further products and
services offered by Mercedes-Benz USA.
Further details on the mbrace system can be
found under http://www.mbusa.com 31
.
Log in under "Owners Online".
i If the indicator lamp in MB info call
button : flashes continuously and no
voice connection to the Response Center
has been established, then the mbrace
system has failed to initiate an MB info call
(e.g. the corresponding mobile phone
network is not available). The Call
Failed message appears in the
multifunction display.
The COMAND display shows the Call
could not be connected! message.
Press W to confirm the message.XTo end a call: press the ~ button on the
multifunction steering wheel.
or
XPress the corresponding button for ending
a phone call on the COMAND telephone
keypad.
Call priority
An emergency call can still be initiated even
if a service call is currently active, e.g. a
Roadside Assistance call or an MB info call.
In this case, an emergency call will take
priority and override all other active calls.
The indicator lamp of the respective button
flashes until the call is ended. An emergency
call can only be terminated by the Response
Center. All other calls can be ended by
pressing the ~ button on the
multifunction steering wheel or the
corresponding button for ending a telephone
call on the COMAND telephone keypad.
31 USA only.436FeaturesLoading, stowing and features