Page 250 of 435

249 Controls in detail
Useful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle and press
the trunk lid button for a minimum of
20 seconds until the SOS button is
flashing.
The message
EMERGENCY CALL –
CALL CONNECTED appears in the multi-
function display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.
!If the indicator lamp continues to flash
or the system does not reset, contact
the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or
Mercedes-Benz Customer Assistance
at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Cus-
tomer Service at 1-800-387-0100 in
Canada.iThe indicator lamp in the respective
button flashes until the call is conclud-
ed. Calls can only be terminated by a
Response Center or Customer Assis-
tance Center representative except
Roadside Assistance and Information
calls, which can also be terminated by
pressing buttonton the multifunc-
tion steering wheel.
iWhen a Tele Aid call has been initiated,
the COMAND system audio is muted
and the selected mode (radio, tape or
CD) pauses. The optional cellular
phone (if installed) switches off. If you
must use this phone, the vehicle must
be parked. Disconnect the coiled cord
and place the call. The COMAND navi-
gation system (if engaged) will contin-
ue to run. The display in the instrument
cluster is available for use, and spoken
commands are only available by press-
ing the RPT button on the COMAND
unit. A pop-up window will appear in
the COMAND display to indicate that a
Tele Aid call is in progress.
Page 251 of 435

250 Controls in detailUseful featuresThe Response Center will then unlock your
vehicle with the remote door unlocking
feature.Stolen vehicle tracking services
In the event your vehicle was stolen:
Report the incident to the police.
The police will issue a numbered inci-
dent report.
Pass this number on to the
Mercedes-Benz Response Center along
with your password issued to you when
you subscribed to the service.
The Response Center will then attempt
to covertly contact the vehicle’s
Tele Aid system. Once the vehicle is lo-
cated, the Response Center will con-
tact the local law enforcement and you.
The vehicle’s location will only be pro-
vided to law enforcement.
Garage door opener
The built-in remote control is capable of
operating up to three separately controlled
devices, for example garage door openers,
gate openers, or other devices compatible
with HomeLink
® or some other systems.
You can program the signal transmitter
buttons.
iThe remote door unlock feature is avail-
able if the relevant cellular phone net-
work is available.
The SOS button will flash and the mes-
sage
EMERGENCY CALL –
CALL CONNECTED
will appear in the mul-
tifunction display to indicate receipt of
the door unlock command.
Once the vehicle is unlocked, a Re-
sponse Center specialist will attempt
to establish voice contact with the ve-
hicle occupants.
If the trunk lid button was pressed for
more than 20 seconds before door un-
lock authorization was received by the
Response Center, you must wait
15 minutes before pressing the trunk
lid button again.
Page 267 of 435

266 OperationDriving instructionsPassenger compartmentDriving abroad
Abroad, there is an extensive
Mercedes-Benz service network at your
disposal. If you plan to drive into areas
which are not listed in the index of your
Mercedes-Benz Center directory, you
should request pertinent information from
an authorized Mercedes-Benz Center.Control and operation of radio trans-
mitters
COMAND*, radio, and telephone*Telephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
Refer to the radio transmitter operation in-
structions regarding use of an external an-
tenna.
Warning!
G
Always fasten items being carried as secure-
ly as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
The trunk is the preferred place to carry ob-
jects.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit Man-
agement and Data System), radio, or tele-
phone
1 if road, weather and traffic
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
1Observe all legal requirements.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.
Page 281 of 435

280 OperationEngine compartmentBattery
Your vehicle’s battery is located on the
right side of the trunk floor (
page 366).
The battery should always be sufficiently
charged in order to achieve its rated ser-
vice life. Refer to Service Booklet for bat-
tery maintenance intervals.
If you use your vehicle mostly for short-dis-
tance trips, you will need to have the bat-
tery charge checked more frequently.
When replacing the battery, always use
batteries approved by Mercedes-Benz.
If you do not intend to operate your vehicle
for an extended period of time, consult an
authorized Mercedes-Benz Center about
steps you need to observe.Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
G
Observe all safety instructions
and precautions when handling
automotive batteries.
A
Risk of explosion
D
Keep flames or sparks away
from battery. Do not smoke.
B
Battery acid is caustic. Do not
allow it to come into contact
with skin, eyes or clothing.
In case it does, immediately
flush affected area with clear
water and seek medical help if
necessary.
E
Wear eye protection.
C
Keep children away.
F
Follow the instructions in this
Operator's Manual.
Page 335 of 435

334 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
L
TELE AID
DRIVE TO WORKSHOP!
One or more main functions of the Tele
Aid system are malfunctioning.
Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
TELE AID BATTERY
DRIVE TO WORKSHOP!
The emergency power battery for the Tele
Aid system is malfunctioning. If the vehi-
cle battery is also discharged, Tele Aid
will not be operational.
Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
t
FUNCTION
NOT AVAILABLE!
This display appears if button t or
s on the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.
Ê
TRUNK OPEN!
This message will appear whenever the
trunk lid is open.
Close the trunk lid.
W
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to about
1/3
of total reservoir capacity.
Add washer fluid (
page 281).
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.
Page 345 of 435
344 Practical hintsWhere will I find ...?
Where will I find ...?First aid kit
The first aid kit is located in the storage
compartments under the front passenger
seat.
1Lid
2ButtonsRemoving the first aid kit
Press buttons2 together and fold
lid1 down.
Remove first aid kit.
Storing the first aid kit
Place first aid kit in the storage com-
partments.
Close lid1 until both buttons2 of
lock engage.Vehicle jack, vehicle tool kit, luggage
bowl, spare wheel
The spare wheel, the vehicle tools, and the
luggage bowl are stored in the compart-
ment underneath the trunk floor.
1Jack
2Storage tray with vehicle tool kit
3Luggage bowl
4Spare wheel
Lift up trunk floor cover and engage
trunk floor handle in upper edge of
trunk.
You can now remove the tools and ac-
cessories.
iCheck expiration dates and contents
for completeness at least once a year
and replace missing/expired items.
Page 346 of 435
345 Practical hints
Where will I find ...?
The vehicle tool kit includes:
One interchangeable slot/Phillips
screwdriver
One towing eye bolt
One wheel bolt wrench with socket
wrench
One alignment bolt
One pair of gloves
One fuse extractor
One fuse chart for the main fuse box
Spare fusesVehicle jack
To prepare the vehicle jack for use
Remove the vehicle jack from the spare
wheel well under the trunk floor.
Push the crank handle up.
Turn the crank handle clockwise until it
engages (operational position).Storing the vehicle jack in the trunk
Retract the vehicle jack arm to the
base of the vehicle jack.
Push the crank handle up.
Turn the crank handle counterclock-
wise to the end of the stop (storage po-
sition).
!To prevent damage, always disengage
trunk floor handle from trunk lid and
lower trunk floor before closing the
trunk lid.
Page 349 of 435
348 Practical hintsUnlocking/locking in an emergency
Unlocking/locking in an emergencyUnlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of ar-
row and slide the mechanical key2
out of the housing.Unlocking the driver’s door
1Unlocking
2Locking
Unlock the door with the mechanical
key. To do so, push the mechanical key
into the lock until it stops and turn it to
the left.
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system.
To cancel the alarm, do one of the fol-
lowing:
With SmartKey
Press button Œ or ‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
With KEYLESS-GO*
Press the KEYLESS-GO* start/stop
button (
page 33).
Grasp the outside door handle
(page 55).