Display messagesPossible causes/consequences and M SolutionsFront
Passenger
Airbag
Enabled
See
Operator’s
ManualUSA only:
The front passenger front air bag is activated while driving
even though a child, small individual, or object below the
system’s weight threshold is on the front passenger seat, or
the front passenger seat is empty. Objects on the seat or
forces acting on the seat may make the system sense
supplemental weight.XStop the vehicle in a safe location as soon as possible.XEngage the parking brake.XSwitch off the ignition.XOpen the front passenger door.XRemove child and child restraint from front passenger seat
and properly secure the child in rear seat employing the
child restraint if necessary.XMake sure no objects which apply supplemental weight to
the seat are present. The system may recognize such
supplemental weight and sense that an occupant on the
front passenger seat is of a greater weight than actually
present.XKeep the seat unoccupied, close the front passenger door
and switch on the ignition.
Monitor the 45 indicator lamp in the center console
( Y page 45) and the multifunction display in the instrument
cluster ( Y page 28) for the following:
With the seat unoccupied and the ignition switched on,
R the 45 indicator lamp in the center console should
illuminate and remain illuminated, indicating that the OCS
( Y page 43) has deactivated the front passenger front air
bag.
R the message Front Passenger Airbag Enabled See
Operator’s Manual or the message Front Passenger
Airbag Disabled See Operator’s Manual should not
appear in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the front
passenger seat again. Depending on the front passenger
classification sensed by the OCS, the 45 indicator
lamp will remain illuminated or go out.
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Display messagesPossible causes/consequences and M SolutionsFront
Passenger
Airbag
Disabled
See
Operator’s
ManualUSA only:
The front passenger front air bag is deactivated while driving
even though an adult or someone larger than a small
individual is occupying the front passenger seat. Forces
acting on the seat may make the system sense a decrease in
weight.XStop the vehicle in a safe location as soon as possible.XEngage the parking brake.XSwitch off the ignition.XHave the front passenger vacate the seat and exit the
vehicle.XKeep the seat unoccupied, close the front passenger door
and switch on the ignition.
Monitor the 45 indicator lamp in the center console
( Y page 45) and the multifunction display in the instrument
cluster ( Y page 28) for the following:
With the seat unoccupied and the ignition switched on,
R the 45 indicator lamp in the center console should
illuminate and remain illuminated, indicating that the OCS
( Y page 43) has deactivated the front passenger front air
bag.
R the message Front Passenger Airbag Enabled See
Operator’s Manual or the message Front Passenger
Airbag Disabled See Operator’s Manual should not
appear in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the front
passenger seat again. Depending on the front passenger
classification sensed by the OCS, the 45 indicator
lamp will remain illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
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Display messagesPossible causes/consequences and M SolutionsDISTRONIC
PLUSCurrently
Unavailabl
e See
Operator's
ManualThe DISTRONIC PLUS is temporarily unavailable.
The DISTRONIC PLUS is deactivated because:
R the DISTRONIC PLUS cover in the radiator grille is dirty
R its function is impaired as a result of heavy precipitation
R the radar sensor system is temporarily inoperative due to
electromagnetic interference near television and radio
transmitter stations, toll stations, speed measuring
systems, etc.
R the radar sensors do not sense any other vehicles or
objects, i.e. road sign or similar to this, for a long time
R the system is out of the operating temperature range
R the battery voltage is insufficientXIf necessary, clean the DISTRONIC PLUS cover in the
radiator grille ( Y page 263).XRestart the vehicle.XTry activating the DISTRONIC PLUS again later.XWait until the system is within the operating temperature
range or the battery recovers.
The DISTRONIC PLUS becomes operational again without the
engine being restarted when:
R dirt on the radiator grille has fallen off while driving (e.g.
slush or snow)
R the system recognizes full sensor availability (due to
lessening rain or the road surface drying)
R the message in the multifunction display disappears
DISTRONIC
PLUSInoperativ
eThe DISTRONIC PLUS is malfunctioning.
The BAS PLUS and the PRE-SAFE ®
Brake are also not
available.XContact an authorized Mercedes-Benz Center as soon as
possible.DISTRONIC
PLUSOverrideYou have accelerated. The DISTRONIC PLUS has switched off.XStop accelerating.280Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsLane
Keeping
AssistCurrently
Unavailabl
e See
Operator's
ManualThe Lane Keeping Assist is temporarily unavailable.
The Lane Keeping Assist is deactivated because:
R the windshield in front of the camera is dirty
R its function is impaired as a result of heavy precipitation or
fog
R lane markings are not present for an extended period of
time
R lane markings are worn, dark, or covered by dirt or snow
for example
The Lane Keeping Assist becomes operational again and the
message in the multifunction display disappears when:
R dirt on the windshield has fallen off while driving (e.g. slush
or snow)
R the system recognizes full camera availabilityXIf necessary, clean the windshield in front of the camera
( Y page 264).Lane
Keeping
AssistInoperativ
eThe Lane Keeping Assist is malfunctioning.XContact an authorized Mercedes-Benz Center.
Vehicle
Display messagesPossible causes/consequences and M SolutionsApply
Braketo Shift
from 'P'You have attempted to shift the automatic transmission into
drive position D, reverse gear R or neutral position N without
depressing the brake pedal.XDepress the brake pedal.Door OpenVehicle
Not in 'P'In addition an acoustic warning sounds.
You have opened the driver’s door and the automatic
transmission is still in drive position D, reverse gear R or
neutral position N.XBefore you leave the vehicle, make sure the automatic
transmission is in park position P and the parking brake is
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Driving systemsDisplay messagesPossible causes/consequences and M Solutions¨Vehicle
RisingThe vehicle is adjusting to your level selection.¨Vehicle
Rising
Please
WaitThe vehicle level is too low.XWait until the message disappears from the multifunction
display.¨Pull Over
Car Too
LowYou have started driving although the vehicle level was too
low.
The vehicle will be raised.XStop the vehicle as soon as it is safe to do so.XEngage the electronic parking brake.XWait until the message disappears from the multifunction
display.
You may then drive off.¨Pull Over
Car Too
LowThe AIRMATIC is malfunctioning.XAvoid excessive steering maneuvers. The fenders or tires
could otherwise be damaged. Listen for scraping noises.XDo not drive faster than 50 mph (80 km/h).XDrive to the side of the road and select a higher vehicle level
( Y page 163).
Depending on the type of malfunction, this may raise the
vehicle’s level.XContact an authorized Mercedes-Benz Center as soon as
possible.
There is otherwise danger of an accident.
¨Malfunctio
nThe capability of the AIRMATIC system is restricted. This can
impair the handling.XDo not drive faster than 50 mph (80 km/h).XHave the vehicle checked at an authorized Mercedes-Benz
Center.ÀAttention
Assist
Time for
a rest?The ATTENTION ASSIST has determined that your
concentration has declined considering certain criteria. In
addition, an acoustic warning sounds.XTake a rest if required.
During long trips, take regular and duly rests that allow you
to recover sufficiently.
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Display messagesPossible causes/consequences and M Solutions¸Replace
Air FilterThe air filter is clogged.XHave the air filter checked at an authorized Mercedes-Benz
Center.!Check
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 333).
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 333).
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.
Lamps
Display 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.bAdaptive
Highbeam
Assist
Inoperativ
eThe Adaptive Highbeam Assist is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
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Display messagesPossible causes/consequences and M SolutionsbCheck
Left
Daytime
Running
Light
or
Check
Right
Daytime
Running
LightThe left or right daytime running lamps are malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Left
Reverse
Lamp
or
Check
Right
Reverse
LampThe left or right backup lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Center
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.bCheck
Left Fog
Lamp
or
Check
Right Fog
LampThe left or right front fog lamp is malfunctioning. This message
will only appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Front
Left
Sidemarker
Lamp
or
Check
Front
Right
Sidemarker
LampThe front left side or right side marker lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.300Vehicle status messages in the multifunction displayPractical hints
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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 control
system ( Y page 141).XSwitch off the headlamps using the exterior lamp switch
( Y page 97).bCheck
Left Low
Beam
or
Check
Right Low
BeamThe left or right low-beam lamp is malfunctioning.XHalogen headlamp: Replace the bulb as soon as possible
( Y page 318).XBi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible.bCheck
Rear Left
Fog LampThe rear fog lamp is malfunctioning. This message will only
appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bSwitch
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 97).
or
XWith the fog lamps switched on: Push in the exterior
lamp switch to its stop.bCheck
Left Tail
and Brake
Lamps
or
Check
Right
Tail and
Brake
LampsThe left or right tail lamp/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.302Vehicle status messages in the multifunction displayPractical hints
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