
Display messagesPossible causes/consequences and M Solutions+
Key Detected in 
VehicleThe KEYLESS-GO key has been detected inside the vehicle during
locking.XRemove the KEYLESS-GO key from the vehicle.+
Remove 'Start' 
Button and Insert 
KeyKEYLESS-GO is temporarily malfunctioning or is defective. A
warning tone also sounds.XInsert the SmartKey into the ignition lock and turn it to the
desired position.XVisit a qualified specialist workshop.+
Close Doors to 
Lock VehicleAt least one door is open. A warning tone also sounds.XClose all doors and lock the vehicle again.
Warning and indicator lamps in the instrument cluster
Brakes
ProblemPossible causes/consequences and  M Solutions$  (USA only)
J  (Canada only)
The red brake system
warning lamp comes on
while the vehicle is
moving. A warning tone
also sounds.You are driving with the parking brake engaged.XRelease the parking brake.
The warning lamp goes out and the warning tone ceases.$  (USA only)
J  (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.GRisk of accident
There is insufficient brake fluid in the fluid reservoir.
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.XEngage the parking brake.XConsult a qualified specialist workshop immediately.XObserve the additional display messages in the multifunction
display.
Do not add brake fluid. This will not rectify the problem.
240Warning and indicator lamps in the instrument clusterOn-board computer and displays
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GWarning
In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be
operational.
For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center
immediately to have the system checked. Otherwise the SRS may not be activated when needed
in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and
unnecessarily which could also result in injury.
Engine
ProblemPossible causes/consequences and  M Solutions;
The yellow Check
Engine warning lamp
lights up while the
engine is running.There may be a malfunction, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system
R the fuel system
The emission limit values may have been exceeded and the engine
may be breaking in emergency mode.XHave the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states, you are required by law to visit a qualified
specialist workshop as soon as the Check Engine warning lamp
lights up. If necessary, check whether this is the case in the
state you are in.
8
The yellow reserve fuel
warning lamp flashes
while the engine is
running.The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.XCheck that the fuel filler cap is correctly closed.XIf the fuel filler cap is not correctly closed:  close the fuel filler
cap.XIf the fuel filler cap is closed:  visit a qualified specialist
workshop.8
The yellow reserve fuel
warning lamp lights up
while the engine is
running. The amount of fuel in the tank has dropped into the reserve range.XRefuel at the nearest gas station.Warning and indicator lamps in the instrument cluster245On-board computer and displaysBA 207 USA, CA Edition B 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.62010-05-20T10:38:09+02:00 - Seite 245Z 

Cabriolet (double cup holder, in line)
XTo open (Coupe): slide cover : forwards.XTo open (Cabriolet): slide front cup holder
cover ; and rear cup holder cover : in
the direction of the arrows.
Sun visors
GWarning
Do not use the vanity mirror while driving.
Keep the vanity mirrors in the sun visors
closed while the vehicle is in motion.
Reflected glare can endanger you and others.
Example: Coupe
:Mirror light;Bracket=Retaining clip, e.g. for a car park ticket?Vanity mirrorAMirror coverVanity 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.XPull or push the sun visor in the direction of
the arrow.
Rear window roller sunblind (Coupe)
To extend/retract the roller sunblind
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
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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.
! Make sure that the roller sunblind can
move freely. Otherwise, the roller sunblind
or other objects could be damaged.
XTurn the key to position 2 in the ignition
lock.
XTo extend or retract: briefly press
button :.
The roller sunblind fully extends or fully
retracts.
Ashtray
Ashtray in the cockpit
iThere is a stowage space under the
ashtray.
! The stowage space under the ashtray is
not heat resistant. Before placing lit
cigarettes in the ashtray, make sure that
the ashtray is properly engaged. Otherwise,
the stowage space could be damaged.
XTo open: slide cover : forwards until it
engages.
XTo remove the insert: hold insert = by
the ribbing at the sides and lift it up and
out ;.
XTo refit the insert: press insert = into the
holder until it engages.
XTo close: press cover : briefly at the
front.
The cover moves back.
Ashtray in the rear compartment
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XTo open: pull cover ; out by its top edge.XTo remove the insert: press release 
button = and lift the insert up and out.
XTo re-insert the insert: replace insert :
from above.
XPress insert : into the holder until it
engages.
Cigarette lighter
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
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
XTurn the key to position 2 in the ignition
lock.
XSlide cover : forwards until it engages.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 socket can be used for accessories with
a maximum power consumption of 180 W,
e.g. lamps or chargers for mobile phones.
If you use the socket for long periods when
the engine is switched off, the battery may
discharge.
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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 volume controller of COMAND.
You can find information and a description of
all available features under "Owners Online"
at  http://www.mbusa.com 22
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  F does not come on during the
system self-test.
R The indicator lamp in Information button
ï  does not come on during the system
self-test.
R The indicator lamp in the SOS button,
Roadside Assistance button  F, or
Information button  ï 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
866-990-9007
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  ï 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
866-990-9007
R Canada:  Customer Service under
1-888-923-8367
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iIf you select  No, the address can be stored
in the address book.
i The Destination Download function is
available if the corresponding cellular
phone network is available and data
transfer is possible.
Search & Send
"Search & Send" is a destination entry
service. You can find further information on
"Search & Send" in the separate COMAND
operating instructions.
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 866-990-9007
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 260) 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 25
.
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.
Vehicle remote closing 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 by remote control  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.
Stolen Vehicle Recovery Services
If your vehicle has been stolen:
XContact the police.
The police will issue an incident report. This
report has a number.XThis number will be forwarded to the
Response Center together with your PIN.
The Response Center will then attempt to
covertly contact the mbrace system. The
Response Center contacts you and the
local law enforcement authority if the
vehicle is located. However, only the law25 USA only.264FeaturesLoading, stowing and features
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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.
i To 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 268) before programming
it for the first time.XTurn the SmartKey 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.
i Indicator 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 from a
distance of 2 to 12 inches (5 to 20 cm).i The 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 or
transmitter button on the garage door
remote control  B.
If indicator lamp  : goes out after
approximately 20 seconds and has not
flashed rapidly:
XRelease transmitter buttons  ;, =  or  ?
on the integrated remote control or
transmitter button on the garage door
remote control  B.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.
i If the garage door system works with a
rolling code, you must synchronize the
remote control integrated into the rear-
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
transmitter signals to "time-out" (or quit) after
several seconds of transmission. This may
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