
iThe exterior lamps (except standing
lamps or parking lamps) go out
automatically when you remove the
SmartKey from the starter switch or open
the driver’s door with the ignition switched
off.
When the parking lamps or the rear fog
lamp are switched on and you remove the
SmartKey from the starter switch and open
the driver’s door, an acoustic signal
sounds.
In addition the message  Switch Off 
Lights  appears in the multifunction
display.
Switch off the parking lamps or the rear fog
lamp manually.
!  Failure to switch off the parking lamps
when leaving the vehicle may result in a
discharged battery.
i Vehicles without front fog lamps: For
better detection of the vehicle, the LED
daytime running lamps are dimmed to
parking lamp level when the low-beam
headlamps are switched on.
Low-beam headlamps 
The low-beam headlamps can be switched on
and off with the exterior lamp switch.
XSwitch on the ignition.XSwitching on:  Turn the exterior lamp
switch to position  L.
The following lamps come on:
R Low-beam headlamps
R Parking lamps 6
R Green indicator lamp  L in the
instrument clusterXSwitching off:  Turn the exterior lamp
switch to position  $.Automatic headlamp mode GWarning!
If the exterior lamp switch is set to  Ã, the
headlamps will not automatically come on
under foggy conditions.
To minimize risk to you and to others, activate
headlamps by turning exterior lamp switch to
L  when driving or when traffic and/or
ambient lighting conditions require you to do
so.
In low ambient lighting conditions, only switch
from position  Ã to L  with the vehicle
at a standstill in a safe location. Switching
from  Ã to L  will briefly switch off the
headlamps. Doing so while driving in low
ambient lighting conditions may result in an
accident.
The automatic headlamp feature is only an aid
to the driver. The driver is responsible for the
operation of the vehicle’s lights at all times.
XSwitching on:  Turn the exterior lamp
switch to position  Ã.
When ambient light is low:  When the
SmartKey is in starter switch position  1 or
when the KEYLESS-GO start/stop button has
been pressed once, the parking lamps 6
 come
on automatically.
When the engine is running, the low-beam
headlamps come on additionally.
When ambient light is bright:  When the
SmartKey is in starter switch position  1 or
when the KEYLESS-GO start/stop button has
been pressed once, all lamps are off.
When the engine is running, the daytime
running lamps 7
 come on automatically.
When the low-beam headlamps are switched
on, the green indicator lamp  L in the
instrument cluster comes on.
Once the low-beam headlamps are on, the
high-beam headlamps are also available.
6 When the parking lamps are on, the tail lamps, the license plate lamps, the side marker lamps, and the
instrument cluster illumination are also on.
7 USA only: The daytime running lamp mode must be activated via the control system.98LightingControls in detail
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Prerequisites for operation:
R The 12V power outlets in the second-row
footwell and cargo compartment
( Y  page 212) are operational.
R The plug of the small device must be
inserted fully into 115V AC socket  :.
R The on-board voltage of the vehicle is within
the permissible voltage range.
R The specified wattage of the small device
is identical or lower than the maximum
permissible wattage (150 W) of the 115V
AC socket  :.XOperation:  Open cover  =.XInsert the plug of the small device into
115V AC socket  :.
LED  ; comes on.
If LED 
; does not come on, refer to the
section on possible nonoperation causes.
XSwitching off:  Pull the plug out of 115V AC
socket  :.
Do not pull on the cable.XClose cover  =.
Possible nonoperation causes:
R The on-board voltage of the vehicle is not
within the permissible voltage range.
XStart the engine.
R The temperature of the DC/AC inverter is
temporarily too high.
XPull the plug of the small device out of
115V AC socket  : and plug it in again
after waiting a few minutes.
R Some small devices have a continuous
power rating of less than 150 W but a very
high switch-on current. Such devices will
not operate. When connecting such a
device, 115V AC socket  : will not provide
power.
If LED  ; still does not come on, contact an
authorized Mercedes-Benz Center.
Tele Aid
!  In order to activate the Tele Aid system, a
subscriber agreement must be completed.
To ensure your system is activated and
operational, please press Information
button  E to perform the acquaintance
call. Failure to complete either of these
steps may result in a system that is not
activated.
If you have any questions regarding
activation, please call the Customer
Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372)
(USA only) or 1-888-923-8367 (Canada
only).
Shortly after the completion of your Tele Aid
acquaintance call, you will receive a user ID
and password in the mail. You may use this
password to access the Tele Aid section in
“Owner’s Online” at  www.mbusa.com (USA
only). The “My Tele Aid” section will give you
access to account information, remote door
unlock and more.
The Tele Aid system is available if
R it has been activated and is operational.
Activation requires a subscription for
monitoring services, connection and
cellular air time
R vehicle battery power is available
R the relevant cellular phone network and
GPS signals are available and pass the
information on to the Customer Assistance
Center
i Location of the vehicle on a map is only
possible if the vehicle is able to receive
signals from the GPS satellite network and
pass the information on to the Customer
Assistance Center.
The Tele Aid system
(Telematic Alarm Identification on Demand)
214Useful featuresControls in detail
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Display messagesPossible causes/consequences and M Solutions#The battery is no longer charging.
Possible causes:
R alternator malfunctioning
R broken poly-V-belt
R a malfunction in the electronic systemXStop immediately in a safe location or as soon as it is safe
to do so and check the poly-V-belt.XIf it is broken:  Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.XIf it is intact:  Drive to the nearest authorized Mercedes-
Benz Center immediately. Adjust driving to be consistent
with reduced braking responsiveness.#Battery/
Alternator
Stop 
VehicleThe battery is defective.XStop the vehicle in a safe location or as soon as it is safe
to do so.XEngage the parking brake.XDo not continue to drive.XContact an authorized Mercedes-Benz Center.4Check 
engine 
oil level 
at next 
refueling.The engine oil level is too low.XCheck the engine oil level ( Y page 230) and add engine oil
as required ( Y page 231).XIf you must add engine oil frequently, have the engine
checked for possible leaks.If the message  Check engine oil level 
at next refueling.  appears while the
engine is running and at operating
temperature, the engine oil level has dropped
to approximately the minimum level.
The message will be stored in the vehicle
status message memory after you have
cleared it from the multifunction display.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest service
station to refill your engine oil to the required
level.For information on approved engine oils
contact an authorized Mercedes-Benz Center
or visit  www.mbusa.com  (USA only).
!  Engine oil level warnings should not be
ignored. Extended driving with the symbol
displayed could result in serious engine
damage that is not covered by the
Mercedes-Benz Limited Warranty.308Vehicle status messages in the multifunction displayPractical hints
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may be towed with all wheels on the ground
only so far as necessary to have the vehicle
moved to a safe location where the
recommended towing methods can be
employed.
! Before towing the vehicle observe the
following instructions:
RDo not tow-start the vehicle. You could
otherwise seriously damage the
automatic transmission which is not
covered by the Mercedes-Benz Limited
Warranty.
RDo not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
RTowing of the vehicle should only be
done using the properly installed towing
eye bolt. Never attach a tow cable, tow
rope or tow rod to the vehicle chassis,
frame or suspension parts.
! Do not tow with one axle raised. Doing so
could damage the transfer case, which is
not covered by the Mercedes-Benz Limited
Warranty. All wheels must be on or off the
ground. Observe instructions for towing the
vehicle with all wheels on the ground.
GWarning!
With the engine not running, there is no power
assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly.
! Avoid pulling the vehicle abruptly or
diagonally, since it could result in damage
to the chassis alignment.
! Do not use the towing eye bolt for
recovery, as this could damage the vehicle.
If in doubt, recover the vehicle with a crane.
iIf the battery is disconnected or
discharged
Rthe SmartKey will not turn in the starter
switch
Rthe automatic transmission will remain in
park position P
For more information see “Battery”
(Y page 348) or “Jump starting”
(Y page 350).
Installing towing eye bolt
Depending on whether you are towing a
vehicle or you are being towed, the towing eye
bolt can be screwed into threaded holes
which are located behind covers on each
bumper.
The towing eye bolt is supplied with the
vehicle tool kit, located in the cargo
compartment underneath the cargo
compartment floor (Y page 284).
XTake the towing eye bolt out of the space
underneath the cargo compartment floor.
Removing cover in front bumper
XPress mark on cover : as indicated by the
arrow.
XLift cover : off to reveal the threaded hole
for the towing eye bolt.
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