Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)EBV, ABS,
ESP
Inoperativ
e See
Operator’s
ManualThe brake system is still functioning normally but due to a
malfunction, the ABS, the BAS, the EBP, the ESP ®
, and the
PRE-SAFE ®
system are unavailable.XContinue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.$
(USA only)
!
(Canada
only)Release
Parking
BrakeYou are driving with the parking brake engaged. In addition
an acoustic warning sounds.XRelease the parking brake.$
(USA only)
J
(Canada
only)Check
Brake
Fluid
LevelThere is insufficient brake fluid in the reservoir.
Risk of accident!XStop the vehicle in a safe location or as soon as it is safe
to do so.XEngage the parking brakeXDo not drive any further.XContact an authorized Mercedes-Benz Center or call
Roadside Assistance.
Do not add brake fluid! This will not solve the problem.
GWarning!
Driving with the message Check Brake Fluid Level displayed can result in an accident. Have
your brake system checked immediately.
Do not add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be
seriously burned.
! If you find that the brake fluid in the brake fluid reservoir has fallen to the minimum mark
or below, have the brake system checked for brake pad thickness and leaks.
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Display messagesPossible causes/consequences and M SolutionsÁCompressor
Cooling
DownYou have selected a higher vehicle level. Due to frequent level
changes within a short period, the compressor must cool
down first.
! When the message Compressor Cooling Down appears
in the multifunction display, driving is still possible. Keep in
mind that the ride height of the vehicle is not yet reached,
so you can damage the underbody of the vehicle.XLet the compressor cool down until the message
disappears.
The selected level will be set once the compressor has
cooled down.ÃInoperativ
eDownhill Speed Regulation is malfunctioning.XHave the Downhill Speed Regulation checked at an
authorized Mercedes-Benz Center.
Vehicle
Display messagesPossible causes/consequences and M SolutionsEYou are driving with the hood or the tailgate open.XStop the vehicle in a safe location as soon as it is safe to
do so.XClose the hood ( Y page 214) or the tailgate ( Y page 75).
There is otherwise danger of an accident.
You are trying to lock the vehicle with the KEYLESS-GO
function with a door or the tailgate open.XClose all doors and/or the tailgate ( Y page 75).;You are driving with at least one door open.XClose all doors.+Key
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.+Don’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.286Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M Solutions+Remove KeyYou have forgotten to remove the SmartKey.XRemove the SmartKey from the starter switch.+You need
a new key.The SmartKey is malfunctioning.XContact an authorized Mercedes-Benz Center.+Key Does
Not
Belong to
VehicleThe SmartKey in the starter switch does not belong to the
vehicle.XFind the SmartKey that belongs to the vehicle to operate
the vehicle.+Change
Key
BatteriesThe batteries in the SmartKey with KEYLESS-GO are
discharged.XReplace the batteries ( Y page 309).+Key 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 parking brake.XSearch for the SmartKey.
The vehicle cannot be locked centrally nor can the engine
be started again after the engine is stopped.+Key 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 parking brake.XRemove the KEYLESS-GO button from the starter switch
( Y page 80).XOperate the vehicle with the SmartKey in the starter switch.+Key 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 80).XOperate the vehicle with the SmartKey in the starter switch.+Pull
starting
button
out then
insert
key.The SmartKey with KEYLESS-GO is permanently not detected.XRemove the KEYLESS-GO button from the starter switch
( Y page 80).XOperate the vehicle with the SmartKey in the starter switch.XContact an authorized Mercedes-Benz Center.Vehicle status messages in the multifunction display287Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 287Z
BrakeProblemPossible causes/consequences and M Solutions!The yellow ABS
indicator lamp
comes on while
the engine is
running.The ABS has detected a malfunction and switched off. The BAS,
the ESP ®
and the PRE-SAFE ®
are also switched off.
The brake system is still functioning normally but without the
systems specified above available.
If the ABS control unit is malfunctioning, other systems such as
the navigation system or the automatic transmission may also be
malfunctioning.XContinue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.XRead and observe messages that may appear in the
multifunction display ( Y page 272).XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident.
!The yellow ABS
indicator lamp
comes on while
the engine is
running.The ABS has switched off due to insufficient power supply.
The battery might not be charged sufficiently.
When the voltage is above the required value again, the ABS is
operational again. The ABS indicator lamp should go out.XIf the ABS indicator lamp does not go out: Have the alternator
and the battery checked.!The yellow ABS
indicator lamp
comes on while
the engine is
running.The self-diagnosis has not been completed yet.
The indicator lamp will go out after driving a short distance at a
vehicle speed of above 12 mph (20 km/h).298What to do if …Practical hints
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GWarning!
If the 42 indicator lamp
illuminates and remains illuminated with the
weight of a typical adult or someone larger
than a small individual on the front passenger
seat, do not have any passenger use the front
passenger seat until the system has been
repaired.
ProblemPossible causes/consequences and M SolutionsUSA only:
42
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.
XMake sure no objects which apply forces to the seat are present
(e.g. objects such as books, briefcases etc. lodged behind or
around the seat, head restraints pushing against roof etc.). The
system may recognize such forces as supplemental weight.
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 272).
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 using the mechanical key.
The anti-theft alarm system will trigger when
you
Runlocking the driver’s door with the
mechanical key
and
Ropen the driver’s door
To cancel the alarm, insert the SmartKey into
the starter switch.
Removing the mechanical key
SmartKey
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SmartKey with KEYLESS-GO
XMove locking tab : in the direction of
arrow.
XSlide mechanical key ; out of the housing.
Unlocking the driver’s door
XInsert 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.Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or with KEYLESS-GO, lock it as
follows:
XClose the front passenger door, the right
rear door, and the tailgate.
XOpen the driver’s door and the rear left
door.
XPress the central locking switch
(Y page 75).
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.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.
XExit the vehicle.XClose the rear left door.
The vehicle is locked.
iThis procedure does not arm the anti-
theft alarm system, nor does it lock the fuel
filler flap.
Unlocking and opening the tailgate
If the tailgate can no longer be unlocked and
opened using button F on the SmartKey
or the KEYLESS-GO function, use the
emergency release lever to unlock and open
the tailgate.
The emergency release lever is located on the
inside of the tailgate.
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A minimum height clearance of 7.2 ft
(2.20 m) is required to open the tailgate.
XRemove cover ; from the trim on the
tailgate.
XPush emergency release lever : all the
way to the left.
! The tailgate swings open upwards
automatically. Always make sure there is
sufficient overhead clearance.
XOpen the tailgate.
iIf the vehicle has previously been locked
from the outside using the SmartKey or
KEYLESS-GO, opening the tailgate from the
inside using the emergency release lever
will trigger the anti-theft alarm system.
To cancel the alarm, do one of the
following:RInsert the SmartKey into the starter
switch.
RPress button % or & on the
SmartKey.
In vehicles with KEYLESS-GO:RPull an outside door handle.
The SmartKey must be within 3 ft (1 m)
of the vehicle.
RPress the KEYLESS-GO start/stop
button.
The SmartKey must be inside the vehicle.
XReinstall cover ;.Fuel filler flapGWarning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not recognize
potential danger.
GWarning!
Avoid contact with the vehicle walls as they
may contain sharp edges. Otherwise, you
could injure yourself while releasing the fuel
filler flap.
In case the central locking system does not
release the fuel filler flap, you can open it
manually.
The fuel filler flap release is located on the
passenger side in the cargo compartment
behind the cover.
XOpen the tailgate (Y page 75).XOpen the cover on the passenger-side trim
panel (Y page 316).
XPull yellow fuel filler flap release : in
direction of arrow.
The fuel filler flap is unlocked.
XOpen the fuel filler flap (Y page 210).XClose the cover.XClose the tailgate.308Unlocking/locking manuallyPractical hints
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Resetting activated NECK-PRO active
front head restraints
If the NECK-PRO active front head restraints
have been triggered in a rear-end collision,
they must be reset.
You can tell that the NECK-PRO active front
head restraints have been triggered when
they have been moved forward and cannot be
adjusted.
GWarning!
For safety reasons, have the NECK-PRO active
front head restraints checked at an
authorized Mercedes-Benz Center after a
rear-end collision.
GWarning!
When pushing back the head restraint
cushion, make sure your fingers do not
become caught between the head restraint
cushion and the cover. Failing to do so may
lead to injury.
iPressing the head restraint cushion back
requires high force. If you encounter
difficulties when pushing the head restraint
back, please have the procedure
performed at an authorized Mercedes-Benz
Center.
XPull the top of the head restraint cushion in
direction of arrow : as far as it will go.
XAdjust the head restraint cushion
downward in direction of arrow ; as far as
it will go.
XFirmly press the top of the head restraint
cushion towards the head restraint cover in
direction of arrow = until it engages.
XRepeat this procedure on the NECK-PRO
active front head restraint for the second
front seat.
For information on NECK-PRO active front
head restraints, see “NECK-PRO active front
head restraints” (Y page 53).
Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an authorized
Mercedes-Benz Center.
GWarning!
Batteries contain poisonous and corrosive
substances. Therefore, keep the batteries out
of reach of children.
If a battery is swallowed, seek medical help
immediately.
GWarning!
SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Check with
your local government’s disposal guidelines.
California residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Batteries contain materials that can harm the
environment if disposed of improperly.
Recycling of batteries is the preferred method
of disposal. Many states (USA only) or
provinces (Canada only) require sellers of
batteries to accept old batteries for recycling.
When inserting the batteries, make sure they
are clean and free of lint.
When replacing batteries, always replace
both batteries.
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