Display messagesPossible causes/consequences and M Solutions?Coolant
Stop,
Turn
Engine OffThe poly-V-belt could be broken.XStop the vehicle immediately as soon as it is safe to do so.XTurn off the engine immediately.XCheck 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: Do not continue to drive the vehicle with this
message displayed. Doing so could result in serious engine
damage that is not covered by the Mercedes-Benz Limited
Warranty.XObserve the coolant temperature gauge in the instrument
cluster.XDrive to the nearest authorized Mercedes-Benz Center
immediately.?The radiator cooling fan is malfunctioning.XObserve the coolant temperature gauge in the instrument
cluster.
If the coolant temperature is below 248‡ (120†), you may
continue driving to an authorized Mercedes-Benz Center.XAvoid placing heavy loads on the engine (e.g. by driving
uphill) as well as stop-and-go traffic.XHave the fan replaced as soon as possible.#The battery is no longer charging.
Possible causes:
R alternator malfunctioning
R broken poly-V-beltXStop 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.212Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M Solutions#The battery has insufficient voltage.XTurn off unnecessary electrical consumers.XHave the battery and the alternator checked at an
authorized Mercedes-Benz Center as soon as possible.#The battery was charged with a battery charger or jump
started.XHave the battery and the alternator checked at an
authorized Mercedes-Benz Center as soon as possible.4Engine
Oil Level
Service
RequiredThe engine oil has dropped to a critical level.XCheck the engine oil level ( Y page 153) and add engine oil
as required ( Y page 155).XIf you must add engine oil frequently, have the engine
checked for possible leaks.You have added too much engine oil. There is a risk of
damaging the engine or the catalytic converter.XHave oil siphoned or drained off. Observe all legal
requirements with respect to its disposal.It may be that there is water in the engine oil.XHave the engine oil at an authorized Mercedes-Benz Center.The measuring system is malfunctioning.XHave the measuring system checked at an authorized
Mercedes-Benz Center.4At next
gas
station
add 1.0
qt engine
oil.
(USA only)
At next
gas
station
add 1.0
liter
engine
oil.
(Canada
only)The engine oil level is too low.XAdd engine oil ( Y page 155) and check the engine oil level
( Y page 153).XIf you must add engine oil frequently, have the engine
checked for possible leaks.Vehicle status messages in the multifunction display213Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 213Z
If the message At next gas station add
1 qt. (Canada: 1 liter) engine oil.
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 servicestation 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 Solutions4Engine
Oil Level
Stop,
Turn
Engine OffThe engine oil level is too low. There is a danger of engine
damage.XStop the vehicle in a safe location or as soon as it is safe
to do so.XTurn off the engine.XAdd engine oil ( Y page 155) and check the engine oil level
( Y page 153).8Reserve
FuelThe fuel level has dropped below the reserve mark.XRefuel at the next gas station.8Gas cap
is open.A 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 151).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.´Clean
Fuel
FilterThere is water in the fuel filter.XHave the water drained at an authorized Mercedes-Benz
Center as soon as possible.214Vehicle status messages in the multifunction displayPractical hints
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LampsDisplay messagesPossible causes/consequences and M SolutionsbReverse
Lamp RightThe right backup lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 233).bBrake
Lamp Left
or
Brake
Lamp RightThe left or right brake lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 233).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.XReplace the bulb as soon as possible ( Y page 233).bFront
Left Side
Marker
Lamp
or
Front
Right
Side
Marker
Lamp The front left side or right side marker lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 233).Vehicle status messages in the multifunction display215Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 215Z
Display messagesPossible causes/consequences and M SolutionsbParking
Lamp
Front
Left
Auxiliary
Bulb On
or
Parking
Lamp
Front
Right
Auxiliary
Bulb OnThe left or right front parking lamp is malfunctioning. A
substitute bulb is being used.XContact an authorized Mercedes-Benz Center as soon as
possible.bHigh Beam
Left
or
High Beam
RightThe left or right high-beam lamp is malfunctioning.XContact 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 233).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 109).XSwitch off the headlamps using the exterior lamp switch
( Y page 74).bLow Beam
Left
or
Low Beam
RightThe left or right low-beam lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.216Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsbRear
Foglamp
Auxiliary
Bulb OnThe rear fog lamp is malfunctioning. A substitute bulb is being
used.XReplace the bulb as soon as possible ( Y page 233).bSwitch
Off LightsYou have removed the SmartKey from the starter switch,
opened the driver’s door and left the headlamps on.XTurn the exterior lamp switch to $ or Ã
( Y page 74).bTurn off
lights or
remove keyThe exterior lamp switch is set to à and you have forgotten
to remove the SmartKey from the starter switch. The parking
lamps remain switched on.XRemove the SmartKey from the starter switch.
or
XSwitch off the headlamps.bTail
Lamp,
Left
Auxiliary
Bulb On
or
Tail
Lamp,
Right
Auxiliary
Bulb OnThe left or right tail lamp is malfunctioning. A substitute bulb
is being used.XReplace the bulb as soon as possible ( Y page 233).bTurn
Signal
Rear Left
Auxiliary
Bulb On
or
Turn
Signal
Rear
Right
Auxiliary
Bulb OnThe left or right rear turn signal lamp is malfunctioning. A
substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 233).Vehicle status messages in the multifunction display217Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 217Z
Display messagesPossible causes/consequences and M SolutionsbTurn
Signal
Front
Left
Auxiliary
Bulb On
or
Turn
Signal
Front
Right
Auxiliary
Bulb OnThe left or right front turn signal lamp is malfunctioning. A
substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 233).bTurn
Signal In
Left
Mirror
or
Turn
Signal In
Right
MirrorThe turn signal in the left or right exterior rear view mirror is
malfunctioning. This message will only appear if all LEDs have
stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.
Tires
Display messagesPossible causes/consequences and M SolutionshCorrect
The Tire
Pres.The tire inflation pressure is too low in at least one tire.
or
The tire inflation pressure of the individual tires differ from
each other significantly.XCheck and correct tire inflation pressure as required
( Y page 161).hTire
Pres.
Caution
Tire
DefectAt least one tire is deflating.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XIf necessary, change the wheel ( Y page 239).218Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionshTire
Pres.
Check
TiresThe tire inflation pressure in at least one tire is significantly
below the reference value.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XCheck and adjust tire inflation pressure as required.XIf necessary, change the wheel ( Y page 239).GWarning!
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
GWarning!
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc.
What to do if …
Lamps in instrument cluster
Notes
If any of the following lamps in the instrument
cluster fails to come on during the bulb self-
check when switching on the ignition, have
the respective bulb checked and replaced if
necessary.
When you switch on the ignition, all lamps in
the instrument cluster come on. The low-
beam headlamp indicator lamp, high-beam
headlamp indicator lamp, and turn signal
indicator lamps will only come on if activated.
If a lamp in the instrument cluster fails to
come on when the ignition is switched on,
have it checked and replaced if necessary.What to do if …219Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 219Z