VehicleDisplay messagesPossible causes/consequences and M Solutions:The trunk is open.XClose the trunk ( Y page 280).MYou are driving with the hood open.XStop the vehicle in a safe location as soon as it is safe to
do so.XClose the hood ( Y page 405).
There is otherwise danger of an accident.
CYou are driving with at least one door open.
The display symbol shows you which doors are open.XClose all doors.EShift to PYou have attempted to turn off the engine with the KEYLESS-
GO start/stop button and opened the driver’s door with the
automatic transmission not shift to park position P.XShift the automatic transmission to park position P
( Y page 317).
or
XClose the driver’s door.ÂKey
Detected
In VehicleA SmartKey with KEYLESS-GO left in the vehicle was
recognized while trying to lock the vehicle from the outside.XTake the SmartKey out of the vehicle.ÂDon’t
Forget
Your KeyThis message appears for a maximum of 60 seconds if the
driver’s door is opened with the engine turned off and no
SmartKey in the starter switch. This message is only a
reminder.XTake the SmartKey with you when leaving the vehicle.ÂTake Your
Key From
IgnitionYou have forgotten to remove the SmartKey.XRemove the SmartKey from the starter switch.ÂObtain a
New KeyThe SmartKey with KEYLESS-GO must be replaced.XContact an authorized Mercedes-Benz Center.ÂClose
Doors to
Lock
VehicleYou tried to lock the vehicle but not all doors were closed.XClose doors and lock the vehicle again.478Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsÂKey Does
Not
Belong to
VehicleThe SmartKey in the starter switch does not belong to the
vehicle.XRemove the SmartKey from the starter switch.ÂReplace
Key
BatteryThe batteries in the SmartKey with KEYLESS-GO are
discharged.XReplace the batteries ( Y page 502).ÂKey Not
Detected
(message
appears in
red)The SmartKey with KEYLESS-GO is not detected while the
engine is running because the SmartKey is not in the vehicle.XStop the vehicle as soon as it is safe to do so.XEngage the electronic parking brake.XSearch for the SmartKey.
The vehicle cannot be locked centrally nor can the engine
be started again after the engine is stopped.ÂKey Not
Detected
(message
appears in
red)The SmartKey with KEYLESS-GO is not detected while the
engine is running because there is strong radio-frequency
interference.XStop the vehicle as soon as it is safe to do so.XEngage the electronic parking brake.XRemove the KEYLESS-GO button from the starter switch
( Y page 285).XOperate the vehicle with the SmartKey in the starter switch.ÂKey Not
Detected
(message
appears in
red)The SmartKey with KEYLESS-GO is momentarily not detected.XChange the position of the SmartKey in the vehicle.XIf necessary, remove the KEYLESS-GO button from the
starter switch ( Y page 285).XOperate the vehicle with the SmartKey in the starter switch.ÂKey Not
Detected
(message
appears in
white)The SmartKey with KEYLESS-GO is momentarily not detected.XChange the position of the SmartKey in the vehicle.XIf necessary, remove the KEYLESS-GO button from the
starter switch ( Y page 285).XOperate the vehicle with the SmartKey in the starter switch.ÂKey Being
Initialize
d… Please
WaitThe SmartKey with KEYLESS-GO is being initialized in the
vehicle.XWait until the message disappears from the multifunction
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Display messagesPossible causes/consequences and M SolutionsÂRemove
'Start'
Button
and
Insert KeyThe KEYLESS-GO system is malfunctioning.XRemove the KEYLESS-GO button from the starter switch
( Y page 285).XOperate the vehicle with the SmartKey in the starter switch.¥Check
Washer
FluidThe water level has dropped to approximately 1.1 US qts
(1.0 l).XAdd washer fluid ( Y page 409).
Engine
Display messagesPossible causes/consequences and M Solutions+Check
Coolant
Level See
Oper.
ManualThe coolant level is too low.XAdd coolant ( Y page 408).XIf you have to add coolant frequently, have the cooling
system checked at an authorized Mercedes-Benz Center.GWarning!
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.
! Do not ignore the low engine coolant level warning. Extended driving with the message
and symbol displayed may cause serious engine damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant in the cooling system. The engine will
overheat causing major engine damage.
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Display messagesPossible causes/consequences and M SolutionsbAuto Lamp
Function
Inoperativ
eThe light sensor is malfunctioning. The headlamps come on
automatically.XContact an authorized Mercedes-Benz Center as soon as
possible.
To switch off the headlamps (U.S. vehicles only):
XSwitch off the daytime running lamp mode in the instrument
cluster control system ( Y page 234).XSwitch off the headlamps using the exterior lamp switch
( Y page 298).bCheck
Left Low
Beam
or
Check
Right Low
BeamThe left or right low-beam lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Rear Left
Fog LampThe rear fog lamp is malfunctioning. A substitute bulb is being
used.XContact an authorized Mercedes-Benz Center as soon as
possible.bPlease
Switch
Off LightsYou have removed the SmartKey from the starter switch,
opened the driver’s door and left the headlamps on or
removed the SmartKey with KEYLESS-GO from the vehicle
and left the headlamps on.XTurn the exterior lamp switch to $ or c
( Y page 298).
or
XWith the rear fog lamp switched on: Push in the exterior
lamp switch to its stop.bCheck
Left Tail
and Brake
Lamp
or
Check
Right
Tail and
Brake LampThe left or right tail lamp/brake lamp is malfunctioning. This
message will only appear if a critical number of LEDs have
stopped working. A substitute bulb is being used.XContact an authorized Mercedes-Benz Center as soon as
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ProblemPossible causes/consequences and M Solutions42
The front passenger
front air bag off
indicator lamp does not
illuminate and/or does
not remain illuminated
with the weight of a
typical 12-month-old
child in a standard child
restraint or less on the
front passenger seat.
The system is malfunctioning.XMake sure there is nothing between seat cushion and child seat
and check installation of the child seat.
XMake sure no objects applying supplemental weight onto the
seat are present.
XIf the front passenger front air bag off indicator lamp remains
out, have the system checked as soon as possible at an
authorized Mercedes-Benz Center. Do not transport a child on
the front passenger seat until the system has been repaired.
XRead and observe messages in the multifunction display and
follow corrective steps (Y page 452).
GWarning!
If the 42 indicator lamp does not
illuminate or remains out with the weight of a
typical 12-month-old child in a standard child
restraint or less on the front passenger seat,
do not transport a child on the front
passenger seat until the system has been
repaired.
Unlocking/locking manually
Unlocking the vehicle
If you cannot unlock the vehicle with the
SmartKey or with KEYLESS-GO, unlock the
driver’s door and the trunk using the
mechanical key.
The anti-theft alarm system will trigger when
you
Runlock the driver’s door or the trunk with
the mechanical key
and
Ropen the driver’s door or the trunk
To cancel the alarm, insert the SmartKey into
the starter switch.
Removing the mechanical key
SmartKey
SmartKey with KEYLESS-GO
XMove locking tab : in the direction of
arrow.
XSlide mechanical key ; out of the housing.Unlocking/locking manually499Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 499Z
Unlocking the driver’s doorXInsert mechanical key ; into the driver’s
door lock.
XTurn mechanical key ; counterclockwise
to position 1.
XPull the door handle past the resistance
point until the locking knob moves up.
The driver’s door is unlocked.
XPull the door handle once more to open the
driver’s door.
XTurn mechanical key ; back and remove
it from the driver’s door lock.
Unlocking the trunk
A minimum height clearance of 5.9 ft (1.8 m)
is required to open the trunk lid.
XInsert mechanical key ; into the trunk lid
lock.
XTurn mechanical key ; counterclockwise
to position 1.
! When you open the trunk, the trunk lid
swings open upwards. Always make sure
there is sufficient overhead clearance.
XTurn mechanical key ; back and remove
it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or with KEYLESS-GO, lock it as
follows:
XOpen the driver’s door and the rear left
door.
XClose the front passenger door, the right
rear door, and the trunk.
iIf you cannot close the trunk with the
remote trunk opening/closing switch,
lower the trunk lid manually and close it
with hands placed flat on the trunk lid until
it is engaged in its lock.
XPress the central locking switch
(Y page 279).
The locking knobs of the front passenger
door and the rear doors move down.
XIf the vehicle battery is disconnected or
drained: Press down the locking knobs on
the front passenger door and the rear
doors.
XExit the vehicle.XCheck whether the trunk is locked.XIf it is not locked, lock it with the
mechanical key (Y page 283).
Except for the driver’s door, the vehicle
should now be locked.
XClose the driver’s door.XEnter the vehicle through the rear left door.XPress down the locking knob of the driver’s
door.
! To prevent inadvertent lockout, make
sure to have the SmartKey with you before
proceeding with the next step. The next
step will lock the vehicle.
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XInsert the new battery with the positive
terminal (+) facing up. Use a lint-free cloth.
XInsert the tabs of the battery compartment
cover into the housing and press the cover
closed.
XSlide mechanical key : back into the
SmartKey.
XCheck the operation of the SmartKey.
Replacing batteries (SmartKey with
KEYLESS-GO)
XInsert mechanical key : into opening.XPress mechanical key : in direction of
arrow.
Battery compartment ; is unlatched.
XPull battery compartment ; out of the
SmartKey housing.
XPull out batteries =.XInsert new batteries = under contact
springs ? with the positive terminal (+)
side facing up.
XReturn battery compartment ; into
SmartKey housing until it locks into place.
XSlide mechanical key : back into the
SmartKey.
XCheck the operation of the SmartKey as
well as the KEYLESS-GO function.
Remote control for Rear Seat
Entertainment System and/or
SPLITVIEW
The remote control contains two batteries of
size AAA, 1.5 V.
XRemove the cover of battery compartment
3 on the back of the remote control by
pressing down the snap-fit hook 2.
XTake out the empty batteries 5.XInsert the new batteries. Mind the polarity
marks on the batteries.
Battery on the left:
The positive terminal (+) must face
upwards.
Battery on the right:
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XInsert bulb socket ; into the guide on the
headlamp.
Wire = is guided to the lower right.
XTurn bulb socket ; clockwise.
Wire = is guided to the lower left.
XAlign housing cover : and turn it
clockwise.
Replacing bulbs for rear lamps
Tail lamp unit
The tail lamps are equipped with HiP bulbs
and LEDs. Have them replaced at an
authorized Mercedes-Benz Center.
Replacing wiper blades
Safety notes
GWarning!
For safety reasons, switch off the wipers and
remove the SmartKey from the starter switch
(vehicles with KEYLESS-GO: Make sure the
vehicle’s on-board electronics have status 0)
before replacing a wiper blade. Otherwise, the
wiper motor could suddenly turn on and cause
injury.
GWarning!
Wiper blades are components that are subject
to wear and tear. Replace the wiper blades
twice a year, preferably in the spring and fall.
Otherwise the windshield will not be wiped
properly. As a result, you may not be able to
observe surrounding traffic conditions and
could cause an accident.
! To avoid damage to the hood, the wiper
arms should only be folded forward when
in the vertical position.
! Never open the hood when a wiper arm is
folded forward.
Hold on to the wiper when folding a wiper
arm back. If released, the force of the
impact from the tensioning spring could
crack the windshield.
Do not allow a wiper arm to contact the
windshield glass without a wiper blade
inserted.
Mercedes-Benz recommends that you have
this work carried out at an authorized
Mercedes-Benz Center.
Placing wiper arms in vertical position
Wiper arms in vertical position
XMake sure the hood is fully closed.
Vehicles with SmartKey
XTurn the SmartKey in the starter switch to
position 1.
XTurn the combination switch to wiper
setting °.
XWith wiper arms in vertical position, turn
the SmartKey in the starter switch to
position 0.
XRemove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO
XMake sure the vehicle’s on-board
electronics have status 1.
XTurn the combination switch to wiper
setting °.
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