2010 MERCEDES-BENZ ML350 Page 91

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

Display messagesPossible causes/consequences and M Solutions~Bluetooth
ReadyThe telephone has not yet been connected to the COMAND
system via Bluetooth ®
.XConnect the telephone to the COMAND system via
Bluetooth ®
.¥Top Up
Washer
FluidThe fluid level has dropped to approximately 1
/ 3 of total
reservoir capacity.XAdd washer fluid ( Y page 217).
Engine
Display messagesPossible causes/consequences and M Solutions+Top Up
Coolant
See
Operator’s
ManualThe coolant level is too low.XAdd coolant ( Y page 216).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 Solutions#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 214) and add engine oil
as required ( Y page 215).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.Display messagesPossible causes/consequences and M SolutionsCThe fuel level is low.XRefuel at the next gas station.8Reserve
FuelThe fuel level has dropped below the reserve mark.XRefuel at the next gas station.8Ultra Low-
sulfur
Diesel
Fuel OnlyVehicles with diesel engine only:
The fuel level has dropped below the reserve mark.XRefuel at the next gas station.XOnly use commercially available vehicular ULTRA-LOW
SULFUR HIGHWAY DIESEL FUEL (ULSD, 15 ppm SULFUR
MAXIMUM).Vehicle status messages in the multifunction display291Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 291Z

Display messagesPossible causes/consequences and M Solutions8Gas Cap
OpenA loss of pressure has been detected in the fuel system. The
fuel cap may not be closed properly or the fuel system may
be leaking.XCheck the fuel cap ( Y page 212).XIf it is not closed properly: Close the fuel cap.XIf it is closed properly: Have the fuel system checked at
an authorized Mercedes-Benz Center.¸Replace
air filterThe air filter is clogged.XHave the air filter checked at an authorized Mercedes-Benz
Center.·Clean
Fuel
FilterThere is water in the fuel filter.XHave the water drained at an authorized Mercedes-Benz
Center as soon as possible.ØCheck
Additive
See
Operator's
ManualThe AdBlue ®
supply is almost depleted.XHave the AdBlue ®
tank refilled as soon as possible
( Y page 331).
Contact an authorized Mercedes-Benz Center.ØRemaining
Starts: 20The AdBlue ®
supply has dropped to the minimum level.XHave the AdBlue ®
tank refilled immediately ( Y page 331).
Contact an authorized Mercedes-Benz Center.i When the message Remaining
Starts: 20 appears in the multifunction
display, you can start the engine 20 more
times. If you do not add AdBlue ®
, the
engine cannot be started beyond that
point. Therefore, fill the AdBlue ®
tank withapproximately 1 gal (3.79 l) AdBlue ®
(corresponds to approximately 2 refill
containers AdBlue ®
) or have the AdBlue ®
tank filled at an authorized Mercedes-Benz
Center. After AdBlue ®
was refilled, the
engine can be started again.292Vehicle status messages in the multifunction displayPractical hints
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LampsDisplay messagesPossible causes/consequences and M SolutionsbActive
Headlamps
Inoperativ
eThe active Bi-Xenon headlamp system is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bReverse
Lamp Left
or
Reverse
Lamp RightThe left or right backup lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 311).bBrake
Lamp Left
or
Brake
Lamp RightThe left or right brake lamp is malfunctioning.
Rear lamps with bulbs: A substitute bulb is being used.
Rear lamps with LEDs: This message will only appear if all
LEDs have stopped working.XRear lamps with bulbs: Replace the bulb as soon as
possible ( Y page 311).XRear lamps with LEDs: Contact an authorized Mercedes-
Benz Center as soon as possible.b3rd Brake
LampThe high-mounted brake lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bFront
Foglamp
Left
or
Front
Foglamp
RightThe left or right front fog lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bMarker
Lamp
Front Left
or
Marker
Lamp
Front
RightThe front left side or right side marker lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 311).Vehicle status messages in the multifunction display293Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 293Z

Display messagesPossible causes/consequences and M SolutionsbParking
Lamp
Front Left
or
Parking
Lamp
Front
RightThe left or right front parking lamp is malfunctioning. A
substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 311).bHigh Beam
Left
or
High Beam
RightThe left or right high-beam lamp is malfunctioning.XHalogen headlamp: Replace the bulb as soon as possible
( Y page 311).XBi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible.bLicense
Plate
Lamp Left
or
License
Plate
Lamp RightThe left or right license plate lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 311).bAUTO
Light
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):
XIn the control system, set daytime running lamp mode to
manual ( Y page 133).XSwitch off the headlamps using the exterior lamp switch
( Y page 93).bLow Beam
Left
or
Low Beam
RightThe left or right low-beam lamp is malfunctioning.XHalogen headlamp: Replace the bulb as soon as possible
( Y page 311).XBi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible.bFoglamp
Rear LeftThe rear fog lamp is malfunctioning.
Rear lamps with LEDs: A substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 311).294Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsbSwitch
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 Ã
( Y page 93).
or
XWith the rear fog lamp switched on: Push in the exterior
lamp switch to its stop.bTail Lamp
Left
or
Tail Lamp
RightThe left or right tail lamp is malfunctioning.
Rear lamps with bulbs: A substitute bulb is being used.
Rear lamps with LEDs: This message will only appear if all
LEDs have stopped working.XRear lamps with bulbs: Replace the bulb as soon as
possible ( Y page 311).XRear lamps with LEDs: Contact an authorized Mercedes-
Benz Center as soon as possible.bCornering
Lamp Left
or
Cornering
Lamp RightThe left or right corner-illuminating front fog lamp is
malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bTrailer
Brake LampThe left or right trailer brake lamp is malfunctioning.XReplace the bulb as soon as possible.bTrailer
Tail Lamp
Left
or
Trailer
Tail Lamp
RightThe left or right trailer tail lamp is malfunctioning.XReplace the bulb as soon as possible.bTrailer
Turn
Signal
Left
or
Trailer
Turn
Signal
RightThe left or right trailer turn signal lamp is malfunctioning.XReplace the bulb as soon as possible.Vehicle status messages in the multifunction display295Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 295Z