Display messagesPossible causes/consequences andMSolutions
FrontPassengerAir‐bag Enable dSeeOperator' sManual
The front-passenger fron tair bag is activated during th ejourney, eve n
though :
Rachild, asmall adult or an objec tweighing less than th esystem' s
weigh tthreshold is locate don th efront-passenger seat
or
Rth efront-passenger seat is unoccupied
The system may detec tobjects or force sapplyin gadditional weigh ton
th eseat .
GWARNIN G
The front-passenger fron tair bag may deploy unintentionally.
There is an increased ris kof injury.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XSwitchth eignition off .
XOpenth efront-passenger door .
XRemove thechild and th echild restrain tsystem from th efront-
passenger seat .
XMakesur ethat there are no objects on th eseat addin gto th e
weight.
The system might otherwise detec tth eadditional weigh tand inter-
pre tth eseat occupant's weigh tas greate rthan it actually is.
XKee pth eseat unoccupied ,close th efront-passenger door and
switch on th eignition .
XObserveth ePASSENGER AI RBA Gindicator lamp sin th ecenter
console and th emultifunction display and chec kth efollowing:
Seat unoccupied and ignition switched on :
Raself-diagnosis is carrie dout .The PASSENGER AI RBA GOF Fand
PASSENGER AI RBA GON indicator lamp smus tligh tup simulta-
neousl yfor approximately six seconds.
Rth ePASSENGER AI RBA GOF Findicator lamp mus tthen ligh tup
and remain lit after th eself-diagnosis .If th eindicator lamp is on ,
OCS has disabled th efront-passenger fron tair bag (
Ypage 52)
Rthedisplay message sFront Passenger Airbag Enable dSee Operator'sManualor Front Passenger Airbag Dis ‐abled See Operator'sManualmus tno tappear in th emulti-
function display
XWait for aperiod of at least 60 seconds until th enecessar ysystem
checks hav ebeen completed.
XMak esur ethat th edisplay message sdo no tappear in th emulti-
function display.
If these condition sare fulfilled ,th efront-passenger seat can be occu-
pied again .Whether th ePASSENGER AI RBA GOF Findicator lamp
remain slit or goe sout depend son how OCS classifies th eoccupant .
If th econdition sare no tfulfilled ,th esystem is no toperating correctly.
XVisit aqualified specialist workshop immediately.
250Display messages
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
Parking Pilotis unavailable or malfunctioning .
XSwitchoff th eignition and restar tth eengine.
If Parking Pilo tcontinues to be unavailable (the jsymbol does no t
appear in th emultifunction display):
XVisit aqualified specialist workshop .
ParkingPilot Fin ‐ishedThe vehicleis parked. Awarning tone also sounds.
The display message disappear sautomatically.
Ã
Inoperative
DS R(Downhill Speed Regulation )is deactivated due to amalfunction .
XHaveDS Rchecke dat aqualified specialist workshop .
TrafficSignAssistCurrently Unavaila‐ble See Operator' sManual
Traffic SignAssis tis temporarily inoperative.
Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty
Rvisibilit yis impaire ddue to heav yrain ,snow or fog
XClean th ewindshield.
If th esystem detects that th ecamera is full yoperational, th edisplay
message disappears.
Traffic Sig nAssis tis operational again .
TrafficSignAssistInoperativeTraffic Sig nAssis tis malfunctioning .
XVisitaqualified specialist workshop .
ë
Off
The HOLD function is deactivated. The vehicl eis skidding.
A warning tone also sounds.
XReactivat eth eHOLD function later (Ypage 179).
The HOLD function is deactivated. Whe nth ebrak epedal is firmly
depressed, an activation condition is no tfulfilled .
A warning tone also sounds.
XChec kth eactivation condition sfor th eHOLD function
(Ypage 179).
Distance Pilot OffDistanc ePilo tDISTRONI Cis deactivated (Ypage 176).
If it was no tdeactivated by th edriver , awarning tone also sounds.
Distance Pilot NowAvailableDistanc ePilo tDISTRONI Cis operational again after having been tem-
porarily unavailable .You can no wreactivat eDistanc ePilo t
DISTRONI C (
Ypage 172).
Display messages259
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
Ð
Power Steering Mal‐function See Opera‐tor's Manual
The powersteering is malfunctioning .
A warning tone also sounds.
GWARNIN G
You will need to use mor eforce to steer .
There is aris kof an accident.
XChec kwhether you are able to apply th eextr aforce required.
If you ar eabl eto steer safely:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
If you ar eunable to steer safely:
XDo no tdrive on .
XConsult aqualified specialist workshop .
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
XWait until th emobile phone operational readiness symbol appear s
in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 322).
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
KeyDoesNotBelongto Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYou rKey fro mIgnition
The SmartKey is in th eignition lock.
A warning tone sounds
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKey Batter y
The SmartKey battery is discharged.
XChange thebatterie s (Ypage 81) .
Display messages267
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
Â
Don't Forget YourKey
The SmartKey is notin th eignition lock. You hav eopened th edriver's
door wit hth eengin eswitched off . Awarning tone sounds
This display message is displayed for amaximum of 60 seconds and is
simply areminder.
XTak eth eSmartKey wit hyou when you leav eth evehicle.
Â
Key Not Detected(whit edisplay message )
The SmartKey is currentl yundetected.
XChange th elocation of th eSmartKey in th evehicle.
If th eSmartKey still canno tbe detected:
XInser tth eSmartKey int oth eignition loc kand tur nit to th edesire d
position .
Â
Key Not Detected(reddisplay message )
The SmartKey is no tin th evehicle.
A warning tone also sounds.
If th eengin eis switched off ,you can no longer loc kth evehicl ecen-
trally or start th eengine.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XLocate th eSmartKey.
XPress aon thesteering whee lto confirm th edisplay message .
Becausethere is interferenc efrom astron gsource of radi owaves, th e
SmartKey is no tdetecte dwhils tth eengin eis running.
A warning tone also sounds.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XInsertth eSmartKey int oth eignition loc kand drive in SmartKey
mode.
Â
Remove 'Start 'But ‐ton and Insert Key
The SmartKey is continually undetected.
The SmartKey detection function has atemporar ymalfunction or is
faulty. Awarning tone also sounds.
XInser tth eSmartKey int oth eignition loc kand tur nit to th edesire d
position .
XVisitaqualified specialist workshop .
Warning and indicat orlamps in the instrume nt cluster
General notes
Some systems carry out aself-diagnosis when th eignition is switched on .Therefore ,som eindicator
and warning lamp smay ligh tup or flas htemporarily. This behavio ris non-critical .These indicator
and warning lamp sonly indicat e amalfunction if they ligh tup or flas hafter starting th eengin eor
whils tdriving.
268Warning and indicator lamps in the instrument cluster
On-board computer and displays
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
F!NF (USA only), !(Canada only): the red indicator lamp for the electric
parking brake flashes or is lit and/or the yellow warning lamp for the electric
parking brake is lit.
XObserve the additional display messages in the multifunction display.
6N The red restraint system warning lamp is lit while the engine is running.
The restraint system is malfunctioning.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XContact a qualified specialist workshop and have the restraint system checked.
For further information about the restraint system, see (
Ypage 44).
Engine
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
;NThe yellow Check Engine warning lamp lights up while the engine is running.
There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system (for vehicles with gasoline engines)
Rin the fuel system
The emission limit values may be exceeded and the engine may be in emergency
mode.
XVisit a qualified specialist workshop immediately.
In some states, you must immediately visit a qualified specialist workshop as soon as the yellow Check Engine warning lamp lights up. This is due to the legal require-
ments in effect in these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving.
XStart the engine three to four times after refueling.
If the yellow Check Engine warning lamp goes out, emergency running mode is
canceled. The vehicle need not be checked.
8N The yellow reserve fuel warning lamp lights up while the engine is running.
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
274Warning and indicator lamps in the instrument cluster
On-board computer and displays
12 V sockets
General notes
XTurn the SmartKey to position 1in the igni-
tion lock (Ypage 136).
The sockets can be used for accessories with a
maximum draw of 180 W (15 A). Accessories
include such items as chargers for mobile
phones.
If you use the sockets for long periods when the
engine is switched off, the battery may dis-
charge.
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the sock-
ets is automatically cut. This ensures that there
is sufficient power to start the engine.
If you have connected a device to the 12 V
socket, leave the cover of the stowage com-
partment open. This prevents the cover from
being blocked.
Socket in the front center console
12 V socket (example)
XTo open: open the stowage compartment
(Ypage 291).
XLift up the cover of socket ;.
XTo close:push cover :of the stowage com-
partment closed.
Socket in the rear compartment center
console
XPull cover ;out by its top edge.
XLift up the cover of socket :.
Socket in the cargo compartment
XLift up the cover of socket:.
115 V socket
Important safety notes
GDANGER
When a suitable device is connected, the
115 V power socket will be carrying a high
voltage. You could receive an electric shock if the connector cable or the 115 V power
socket is pulled out of the trim or is damaged
or wet. There is a risk of fatal injury.
RUse only connector cables that are dry and
free of damage.
RWhen the ignition is off, make sure that the
115 V power socket is dry.
Features305
Stowage and features
Z
RHave the 115 V power socket checked or
replaced immediately at a qualified speci-
alized workshop if it is damaged or has been
pulled out of the trim.
RNever plug the connector cable into a 115 V
power socket that is damaged or has been
pulled out of the trim.
GDANGER
If you reach into the power socket or plug
inappropriate devices into the power socket,
you could receive an electric shock. There is a
risk of fatal injury.
Only connect appropriate devices to the
power socket.
!Note that work and repairs on the 115 V
power socket should only be carried out by
qualified specialist personnel.
General notes
The 115 V power socket provides an alternating
voltage of 115 V so that small electronic devices
can be connected. These devices, such as
games consoles, chargers and laptops, must not consume more than a maximum of 150 watts
altogether.
Requirements for operation of these devices:
Rthe electronic device that you connect has a
suitable connector and conforms to stand-
ards specific to the country you are in.
Rthe plug of the electronic device is plugged
correctly into 115 V power socket.
Rthe maximum wattage of the device to be
connected must not exceed 150 watts.
Rthe on-board power supply is within a permis-sible voltage range.
Rthe 12 V sockets in the rear compartment and
the cargo compartment are operational.
Using the 115 V power socket
XTo switch on: switch the ignition on.
XOpen flap=.
XInsert the plug of the electronic device into
115 V power socket :.
Indicator lamp ;lights up.
XTo switch off: disconnect the plug from
115 V power socket :.
Ensure that you do not pull on the cord.
306Features
Stowage and features
The system offers various services, e.g.:
RAutomatic and manual emergency call
RRoadside Assistance call
RInfo call
You can find information and a description of all
available features under "Owners Online" at
http://www.mbusa.com.
System self-test
After you have switched on the ignition, the sys- tem carries out a self-diagnosis.
A malfunction in the system has been detected
if one of the following occurs:
RThe indicator lamp in the SOS button does not
come on during the system self-test.
RThe indicator lamp in the FRoadside
Assistance button does not light up during
self-diagnosis of the system.
RThe indicator lamp in the ïInfo call button
does not light up during the system self-diag-
nosis
RThe indicator lamp in one or more of the fol-
lowing buttons continues to light up red after
the system self-diagnosis:
-SOS button
-F Roadside Assistance call button
-Info call button ï
RAfter the system self-diagnosis, the Inoper‐ativeorServiceNotActivatedmessage
appears in the multifunction display.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In the
event of an emergency, help will have to be
summoned by other means.
Have the system checked at the nearest
Mercedes-Benz Service Center or contact the
following service hotlines:
Mercedes-Benz Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372) or
1-866-990-9007
Emergency call
Important safety notes
GWARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an emergency if:
Ryou see smoke inside or outside of the vehi-
cle, e.g. if there is a fire after an accident
Rthe vehicle is on a dangerous section of
road
Rthe vehicle is not visible or cannot easily beseen by other road users, particularly when
dark or in poor visibility conditions
There is a risk of an accident and injury.
Leave the vehicle immediately in this or simi-
lar situations as soon as it is safe to do so.
Move to a safe location along with other vehi-
cle occupants. In such situations, secure the
vehicle in accordance with national regula-
tions, e. g. with a warning triangle.
General notes
Observe the notes on system activation
(Ypage 307).
An emergency call is dialed automatically if an
air bag or Emergency Tensioning Device is trig-
gered. You cannot end an automatically trig-
gered emergency call yourself.
An emergency call can also be initiated man-
ually.
As soon as the emergency call has been initi-
ated, the indicator lamp in the SOS button
flashes. The Connecting Call
message
appears in the multifunction display.
The audio output is muted.
Once the connection has been made, the Call
Connectedmessage appears in the multifunc-
tion display.
All important information on the emergency is
transmitted, for example:
RCurrent location of the vehicle (as determined
by the GPS system)
RVehicle identification number
RInformation on the severity of the accident
Shortly after the emergency call has been initi-
ated, a voice connection is automatically estab-
308Features
Stowage and features