Contents
Maximum tire inflation pressure .. 320
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 321
Tire ply material ........................... 323
Tire and loading terminology ........ 323
Rotating tires ............................... 326
Winter driving .................................... 328
Winter tires .................................. 328
Block heater* (Canada only) ........ 329
Snow chains................................. 329
Maintenance ...................................... 330
Maintenance service indicator
message....................................... 330
Calling up the maintenance
service indicator........................... 331
Resetting the maintenance
service indicator........................... 332
Vehicle care ....................................... 333
Cleaning and care of vehicle ........ 333
Practical hints.................................. 343
What to do if … ................................... 344
Lamps in instrument cluster ......... 344
Lamp in center console................. 356
Vehicle status messages in the
multifunction display..................... 358
Where will I find...? ............................. 393
First aid kit .................................... 393
Spare wheel .................................. 393
Vehicle tool kit .............................. 395
Luggage box ................................. 397
Unlocking/locking in an emergency... 398
Unlocking the vehicle.................... 398
Locking the vehicle ....................... 399
Fuel filler flap emergency release . 400
Manually unlocking the gear
selector lever ................................ 400
Resetting activated head restraints .... 401
Replacing SmartKey batteries ............ 402
Replacing bulbs .................................. 404
Bulbs ............................................. 404
Replacing bulbs for front lamps .... 407
Replacing bulbs for rear lamps ..... 409
Replacing wiper blades....................... 410
Wiper blades ................................. 410Flat tire............................................... 412
Preparing the vehicle .................... 412
Mounting the spare wheel ............ 412
MOExtended system* ................... 419
Battery ............................................... 420
Disconnecting the battery ............ 421
Removing the battery ................... 421
Charging and reinstalling the
battery .......................................... 422
Reconnecting the battery ............. 422
Jump starting...................................... 423
Towing the vehicle.............................. 425
Installing towing eye bolt .............. 426
Fuses.................................................. 428
Fuse box in passenger
compartment ................................ 429
Fuse box in trunk .......................... 429
71 Safety and Security
Occupant safety
The side impact air bags and window cur-
tain air bags are deployed:
on the impacted side of the vehicle
in impacts exceeding a preset deploy-
ment threshold
independently of the front air bags
In addition, the window curtain air bags2
are deployed:
in certain vehicle rollovers
The side impact air bags and window cur-
tain air bags are not deployed in impacts
which do not exceed the system’s deploy-
ment threshold.
Occupant Classification System
The Occupant Classification System (OCS)
automatically turns the front passenger
front air bag on or off based on the classi-
fied occupant weight category determined
by weight sensor readings from the front
passenger seat.
Occupants must sit properly belted in a po-
sition that is as upright as possible with
their back against the seat backrest and
feet on the floor to be correctly classified.
If the occupant’s weight is transferred to
another object in the vehicle (e.g. by lean-
ing on armrests), the OCS may not be able
to properly approximate the occupant’s
weight category. Furthermore, the occupant weight may ap-
pear to increase or decrease due to
objects hanging on the seat, other passen-
gers pushing on the seat, objects lodged
underneath the seat or stuffed between
seat and middle console or between seat
and door or due to objects applying pres-
sure on the back of the seat. Always make
sure that the seat has clearance in all di-
rections at all times.
Both driver and the front passenger should
always use the 75 indicator
lamp as an indication of whether or not the
front passenger is properly positioned.
iThe system does not deactivate the front
passenger side impact air bag, the window cur-
tain air bag and the Emergency Tensioning De-
vice.
iIf your seat, including your trim cover and
cushion needs to be serviced in any way, take
the vehicle to an authorized Mercedes-Benz
Center.
Only seat accessories approved by
Mercedes-Benz may be used.
98 Safety and Security
Anti-theft systems
Arming the alarm system
The indicator lamp located in the central
locking switch in the center console.
1Indicator lamp
Lock the vehicle with the SmartKey or
KEYLESS-GO*.
The turn signal lamps flash three times
to indicate that the alarm system is
armed. The indicator lamp1 begins to
flash after approximately 30 seconds
after arming the alarm system.
Disarming the alarm system
Unlock the vehicle with the SmartKey
or KEYLESS-GO*.
The turn signal lamps flash once to
indicate that the alarm system is
disarmed.Canceling the alarm
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press button Œ or ‹ on the
SmartKey.
With KEYLESS-GO*
Pull an outside door handle.
The SmartKey with KEYLESS-GO* must
be within 3 ft (1 m) of the vehicle.
or
Press the KEYLESS-GO* start/stop
button (
page 39).
The SmartKey with KEYLESS-GO* must
be inside the vehicle.
iIf the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 256) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary cellular service and GPS coverage are
available.
iIf the turn signal lamps do not flash three
times, one of the following elements may not be
properly closed:
a door
the trunk
Close the respective element and lock the vehi-
cle again.
iThe alarm system will rearm automatically
after approximately 40 seconds if neither a door
nor the trunk was opened.
257 Controls in detail
Useful features
System self-check
Initially, after switching on ignition, mal-
functions are detected and indicated (the
indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than 10 seconds or do not come on). The
message
Malfunction Service Required
appears in the multifunction display.Emergency calls
An emergency call is initiated automatical-
ly following an accident in which the emer-
gency tensioning devices (ETDs) or
air bags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
interior rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See (
page 258) for
instructions on initiating an emergency call
manually.
Once the emergency call is in progress, the
indicator lamp on the SOS button will
begin to flash. The message
Connecting Call
appears in the multi-
function display. When the connection is
established, the message
Call Connected
appears in the multifunction display. All in-
formation relevant to the emergency, such
as the location of the vehicle (determined
by the GPS satellite location system), vehi-
cle model, identification number and color
are generated.
!The Tele Aid system utilizes the cellular net-
work for communication and the GPS (G
lobal Po-
sitioning S
ystem) satellites for vehicle location. If
either of these signals are unavailable, the
Tele Aid system may not function and if this oc-
curs, assistance must be summoned by other
means.
iWhen a Tele Aid call has been initiated, the
COMAND System audio is muted and the select-
ed mode (radio, tape or CD) pauses. The optional
cellular phone (if installed) and inserted in cradle
switches off. If you must use this phone, we rec-
ommend that you use it only with the vehicle at a
standstill in a safe location. Remove the phone
from the cradle and place the call. The naviga-
tion* system (if engaged) will continue to run.
The multifunction display in the instrument clus-
ter is available for use, and spoken commands
are only available by pressing the RPT button on
the COMAND System. A pop-up window will ap-
pear in the COMAND System display to indicate
that a Tele Aid call is in progress. After the Tele
Aid call has ended, the optional cellular phone
switches on again. A PIN entry might be neces-
sary.
Warning!G
If the indicator lamps on the SOS button, on
the Roadside Assistance button, and/or on
the Information button remain illuminated
continuously in red and/or the message
Malfunction Service Required is
displayed in the multifunction display after
the system self-check, a malfunction in the
system has been detected.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. Have the system checked at the
nearest Mercedes-Benz Center as soon as
possible.
258 Controls in detail
Useful features
A voice connection between the Response
Center and the occupants of the vehicle
will be established automatically soon af-
ter the emergency call has been initiated.
The Response Center will attempt to
determine more precisely the nature of the
accident provided they can speak to an
occupant of the vehicle.
The Tele Aid system is available if
it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection
and cellular air time
the relevant cellular phone network
and GPS signals are available and pass
the information on to the response cen-
terInitiating an emergency call manually
1Cover
2SOS buttonBriefly press on cover1.
The cover will open.
Press SOS button2 briefly.
The indicator lamp in SOS button2
will flash until the emergency call is
concluded.
Wait for a voice connection to the
Response Center.
Close cover1 after the emergency
call is concluded.
iLocation of the vehicle on a map is only pos-
sible if the vehicle is able to receive signals from
the GPS satellite network and pass the informa-
tion on to the Response Center.
Warning!G
If the indicator lamp in the SOS button is
flashing continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant cellular phone network is not available).
The message
Call Failed appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be sum-
moned by other means.
260 Controls in detail
Useful features
Information button¡
The Information button¡ is located
below the center armrest cover.
Open the storage compartment under
the center armrest (
page 243).
Press and hold button (for longer than
2 seconds).
A call to the Customer Assistance
Center will be initiated. The button will
flash while the call is in progress. The
message
Connecting Call will appear
in the multifunction display.
When the connection is established, the
message
Call Connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and lo-
cation (subject to availability of cellular
and GPS signals).A voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. Information regarding the operation
of your vehicle, the nearest
Mercedes-Benz Center or Mercedes-Benz
USA products and services is available to
you.
For more details concerning the Tele Aid
system, please visit www.mbusa.com and
use your ID and password (sent to you sep-
arately) to learn more (USA only).
iThe indicator lamp on the Roadside
Assistance button• remains illuminated in
red for approximately 10 seconds during the sys-
tem self-check after switching on the ignition (to-
gether with the SOS button and the Information
button¡).
See system self-check (
page 257) if the indi-
cator lamp does not come on in red or stays on
longer than approximately 10 seconds.
If the indicator lamp on the Roadside Assistance
button
• is flashing continuously and there
was no voice connection to the Response Center
established, then the Tele Aid system could not
initiate a Roadside Assistance call (e.g. the rele-
vant cellular phone network was not available).
The message
Call Failed appears in the mul-
tifunction display.
Roadside Assistance calls can be terminated us-
ing the
t button on the multifunction steer-
ing wheel or the END Button on the COMAND
System.
iWhile the call is connected, you can change
to the navigation menu by pressing NAVI button
on the COMAND System.
iThe indicator lamp in the Information
button¡ remains illuminated in red for ap-
proximately 10 seconds during the system
self-check after switching on the ignition (togeth-
er with the SOS button and the Roadside
Assistance button•).
See system self-check (
page 257) if the indi-
cator lamp does not come on in red or stays on
longer than approximately 10 seconds.
261 Controls in detail
Useful features
Call priority
If other service calls such as a Roadside
Assistance call or Information call are
active, an Emergency call is still possible.
In this case, the Emergency call will take
priority and override all other active calls.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 pull the
tailgate recessed handle for minimum
of 20 seconds until the SOS button is
flashing.
The message
Connecting Call ap-
pears in the multifunction 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.
The Response Center will then unlock your
vehicle with the remote door unlocking
feature.
If the indicator lamp in the Information
button
¡ is flashing continuously and there
was no voice connection to the Response Center
established, then the Tele Aid system could not
initiate an Information call (e.g. the relevant cel-
lular phone network is not available). The mes-
sage
Call Failed appears in the
multifunction display.
Information calls can be terminated using
the
t button on the multifunction steering
wheel or the END Button on the COMAND Sys-
tem.
!If the indicator lamps do not start flashing
after pressing one of the buttons or remain illu-
minated (in red) at any time, the Tele Aid system
has detected a malfunction or the service is not
currently active, and may not initiate a call. Con-
tact your authorized Mercedes-Benz Center and
have the system checked or contact the Re-
sponse Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada) as soon as pos-
sible.
iThe indicator lamp in the respective button
flashes until the call is concluded. Emergency
calls can only be terminated by a Response Cen-
ter or Customer Assistance Center representa-
tive, whereas Roadside Assistance and
Information calls can also be terminated by
pressing buttont on the multifunction steer-
ing wheel or using the END button on the
COMAND System.
!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 Customer Ser-
vice at 1-800-387-0100 in Canada.
284 Operation
At the gas station
Open fuel filler flap1 by pushing at
the point indicated by the arrow.
The fuel filler flap springs open.
Turn fuel cap2 counterclockwise and
hold on to it until possible pressure is
released.
Take off fuel cap2 and place it into
holder3 located on the inside of the
fuel filler flap.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.
Only fill your tank until the filler nozzle
unit cuts out – do not top off or over-
fill.
Replace fuel cap by turning it clockwise
until it audibly engages.
Close the fuel filler flap.
Warning!G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas-
oline fuel discharge. This could cause the
gasoline fuel to spray back out when remov-
ing the fuel pump nozzle, which could cause
personal injury.
iMake sure to close the fuel filler flap before
locking your vehicle as the flap locking pin pre-
vents closing after you have locked the vehicle.
iLeaving the engine running and the fuel cap
open can cause the yellow fuel tank reserve
warning lamp to flash and the malfunction indi-
cator lampú(USA only) or the malfunction
indicator lamp±(Canada only) to illuminate.
See also “Practical hints” section (
page 348).
iOnly use premium unleaded gasoline with a
minimum Posted Octane Rating of 91 (average of
96 RON/86 MON). Information on gasoline
quality can normally be found on the fuel pump.
Please contact gas station personnel in case
labels on the pump cannot be found.
For more information on gasoline, see “Premium
unleaded gasoline” (
page 451), see “Fuel re-
quirements” (
page 451), and the Factory Ap-
proved Service Products pamphlet (USA only) or
contact an authorized Mercedes-Benz Center.