2018 MERCEDES-BENZ G-CLASS warning

Display messagesPossible causes/consequences andMSolutions
6
RearLef tMalfunc‐tio nServic eRequiredorRea rRight MalfunctionServic eRequired
The rear left-han dor right-hand restrain tsystem has malfunctioned.
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop .
6
RearCenterMalfunc‐tionServic eRequired
The rear center restrain tsystem has malfunctioned. The 6warning
lamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop .
6
LeftSid eCurtai nAirbag MalfunctionServiceRequiredor
Right Sid eCurtai n
Airbag MalfunctionServiceRequired
The left-han dor right-hand window curtai nair bag is malfunctioning .
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The lef tor right window curtai nair bag may either be triggered unin-
tentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop .
FrontPassengerAir‐bag Disabled SeeOperator' sManual
ABabySmart ™compatible child restrain tsystem is installed on th e
front-passenger seat .
The 45indicator lamp also lights up.
The front-passenger air bag is therefore disabled.
Further information on BabySmart™ (
Ypage 53).
178Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
FrontPassengerAir‐bag Enable dSeeOperator' sManual
The 45indicator lamp does not remain lit if a special Baby-
Smart™-compatible child restraint system has been installed on the
front-passenger seat.
The BabySmart™ system is malfunctioning.
GWARNING
The front-passenger front air bag can be triggered unintentionally in
the event of an accident.
There is a risk of an accident.
XMake sure there is nothing between the seat cushion and the child
seat.
XCheck for correct installation of the child restraint system.
XIf the 45indicator lamps do not light up, have the Baby-
Smart™ system checked as soon as possible at a qualified special-
ist workshop.
Do not transport a child on the front-passenger seat until the air bag
deactivation system has been repaired.
RadarSensorsDirtySee Operator's Man‐ual
The radar sensor system is malfunctioning.
Possible causes are:
Rdirt on sensors
Rheavy rain or snow
Rwhen driving on inter-urban roads without traffic or infrastructure,
e.g. in desert-like areas
At least one driving system is malfunctioning or temporarily unavail-
able:
RDISTRONIC PLUS
A warning tone also sounds.
Once the cause of the problem is no longer present, the driving sys-
tems will be available again. The display message disappears.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 122).
XSwitch off the engine.
XClean all sensors (Ypage 239).
XRestart the engine.
The display message disappears.
Display messages179
On-board computer and displays
Z

Lights
Display messagesPossible causes/consequences andMSolutions
b
Example:Check LeftLow Beam
The bulb in question is malfunctioning.
XVisit a qualified specialist workshop.
or
XCheck whether you are permitted to replace the bulb yourself
(Ypage 89).
iLED light sources: the display message for the corresponding
lamp only appears when all the LEDs in the lamp have failed.
b
Malfunction SeeOperator's Manual
The exterior lighting is malfunctioning.
XVisit a qualified specialist workshop.
b
Auto Lamp FunctionInoperative
The light sensor is defective.
XVisit a qualified specialist workshop.
b
Switch Off Lights
The lights are still switched on when you leave the vehicle. A warning
tone also sounds.
XTurn the light switch to position Ã.
Engine
Display messagesPossible causes/consequences and MSolutions
+
CheckCoolantLevelSee Operator's Man‐ual
The coolant level is too low.
XAdd coolant, observing the warning notes before doing so
(Ypage 234).
XHave the coolant system checked at a qualified specialist workshop
if the coolant needs topping up more often than usual.
?The fan motor is malfunctioning.
XIf the coolant temperature is below the Hmark, drive to the nearest
qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic.
180Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotSto pVehicl eTur nEngine Off
The coolan tis to ohot .
A warning tone also sounds.
GWARNIN G
Do no tdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked int oth eengin ecompartmen tto catch
fire.
Steam from th eoverheate dengin ecan also caus eserious burn swhic h
can occur jus tby opening th ehood.
There is aris kof injury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XLeaveth evehicl eand keep asaf edistanc efrom th evehicl euntil th e
engin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no tblocked,
e.g. by snow, slus hor ice .
XDo no tstart th eengin eagain until th edisplay message goe sout and
th ecoolan ttemperature is belo wtheH marking .Otherwise ,th e
engin ecould be damaged.
XPay attention to th ecoolan ttemperature gauge .
XIf thetemperature increases again ,visit aqualified specialist work-
sho pimmediately.
Under normal operating condition sand at th ecorrec tcoolan tlevel,
th egauge may ris eto th eH marking .
The poly-V-belt may hav etorn .
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XChec kth epoly-V-belt .
If th epoly-V-belt is torn:
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XConsult aqualified specialist workshop .
If th epoly-V-belt is not damaged :
XWait until thedisplay message disappear sbefore restarting th e
engine. Otherwise ,th eengin ecould be damaged.
XPay attention to th ecoolan ttemperature gauge .
XVisitaqualified specialist workshop .
Display messages181
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
#The battery is notbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Ratorn poly-V-belt
Ramalfunction in th eelectronics
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XOpe nth ehood.
XChec kwhether th epoly-V-belt is torn .
If th epoly-V-belt is torn:
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XConsult aqualified specialist workshop .
If th epoly-V-belt is not damaged :
XVisitaqualified specialist workshop .
4
CheckEngineOilAtNextRefueling
The engin eoil level has dropped to th eminimum level.
A warning tone also sounds.
XChec kth eoil level when next refueling, at th elatest (Ypage 232).
XIf necessary, add engin eoil (Ypage 233).
XHav eth eengin echecke dat aqualified specialist workshop if engin e
oil needs to be added mor eoften than usual.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
Information on approve dengin eoils can be obtained from any quali-
fie dspecialist workshop or on th eInternet at http:/ /
www.mbusa.com (US Aonly).
4
Engine Oil LevelLow Sto pVehicl eTurnEngine Off
Mercedes-AMG vehicle: th eengin eoil level is to olow. There is aris k
of engin edamage.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XAd dengin eoil (Ypage 233) and chec kth eoil level (Ypage 232).
4
Check Engine OilLevel (Ad d 1quart)
Mercedes-AMG vehicles: th eengin eoil level is to olow.
XChec kth eoil level when next refueling, at th elatest (Ypage 232).
XIf necessary, add engin eoil (Ypage 233).
XHav eth eengin echecke dat aqualified specialist workshop if engin e
oil needs to be added mor eoften than usual.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
Information on approve dengin eoils can be obtained from any quali-
fie dspecialist workshop or on th eInternet at http:/ /
www.mbusa.com (US Aonly).
182Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
TCShiftConditionsNot Fulfilled
Select NEUTRA LGea r
You hav eno tmet on eor mor eshift conditions.
XShift th eautomatic transmission int oneutral position i.
XRepeat thegearshift process.
TCShiftCondition sNot Fulfilled
Max.Speed 40 mph
You hav eexceeded th emaximum speed for th egearshift process.
XDrive mor eslowly.
XRepeat th egearshift process.
LOW RANGE
On
The transfer cas eis in th eLOW RANGE off-road gear.
HIGHRANGE
On
The transfer cas eis in th eHIG HRANGE on-road position .
Differential LocksAvailable OnlyInLOW RANGE
The LOW RANGE butto nhas been pressed. The transfer cas eis in
LOW RANGE off-road gear and adifferential loc kis engaged.
XDisengage th edifferential loc k (Ypage 151).
XRepeat thegearshift process.
TC NEUTRA L
On
The transfer cas eis in th eNeutral neutral position .
A warning tone will also soun dwhen th edriver's door is opened and
th ebrak epedal is no tdepressed.
XClos eth edriver's door .
XSecureth evehicl eagainst rollin gaway (Ypage 122).
XShift th etransfer cas eaccording to drivin gcondition s
(Ypage 149).
Differential Loc kPreselected
ESP Not Available
Adifferential loc kwas engaged. The differential gear system has no t
yet locke dth erespective differential. The activation indicator lamp
(yellow) (
Ypage 151) of th eswitch lights up.
ES P®is unavailable .
AB Sis still available.
Differential LocksActive
ABS and ESP NotAvailable
A differential loc kwas engage dand th edifferential gear system has
locke dth erespective differential. The yellow activation indicator lamp
and red function indicator lamp (
Ypage 151) on theswitch lights up.
AB Sand ES P®are unavailable .
184Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Blind SpotAssistCurrently Unavaila‐ble
See Operator' sMan ‐ual
Blind Spot Assis tis temporarily inoperative. Possibl ecauses are:
RYou hav eestablished th eelectrical connection between th etrailer
and your vehicle.
RThe sensor sare dirty.
RFunction is impaire ddue to heav yrain or snow.
RThe radar sensor system is outside th eoperating temperature
range.
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
The yellow 9indicator lamp salso ligh tup in th eexterio rmirrors.
XWhe ntowin g atrailer ,confirm th edisplay message wit ha.
If you are drivin gwithout atrailer and th edisplay message does no t
disappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XApply th eparking brake.
XClean th esensor s (Ypage 239).
XRestart th eengine.
If th esystem detects that th esensor sare full yoperational, th edisplay
message disappears.
Blind Spot Assis tis operational again .
Blind SpotAssistNot Available Whe nTowingaTraile rSee Operator' sMan ‐ual
Blind Spot Assis tis deactivated while towin g atrailer .
You hav eestablished th eelectrical connection between th etrailer and
your vehicle.
XPress aon thesteering whee lto confirm th edisplay message .
Blind SpotAssist
Inoperative
Blind Spot Assis tis malfunctioning .
The yellow 9indicator lamp salso ligh tup in th eexterio rmirrors.
XVisit aqualified specialist workshop .
DISTRONIC PLUS
Off
DISTRONICPLU Shas been deactivated (Ypage 134).
If it was deactivated automatically, awarning tone also sounds.
DISTRONIC PLU S
Now Available
DISTRONICPLU Sis operational again after having been temporarily
unavailable .You can no wreactivat eDISTRONI CPLU S (Ypage 134).
Display messages185
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
DISTRONIC PLUS
Currently Unavaila‐ble See Operator' sManual
DISTRONICis deactivated and temporarily inoperative. Possibl ecau-
ses are:
RThe DISTRONI CPLU Scover in th eradiato rtrim is dirty
RFunction is impaire ddue to heav yrain or snow.
RThe sensor sin th ebumpers are dirty.
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
RThe system is outside th eoperating temperature range.
RThe transfer cas eis in th eLOW RANGE transmission position .
RThe vehicleis on an uphil lor adownhill slop eof mor ethan
22 ‑25 %
RThe on-boar dvoltag eis to olow.
A warning tone also sounds.
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XApply th eparking brake.
XClean th eDISTRONI CPLU Scover in th eradiato rtrim and th e
bumper (Ypage 239).
XRestart th eengine.
If th esystem detects that th esensor sare full yoperational, th edisplay
message disappears.
DISTRONI CPLU Sis operational again .
DISTRONIC PLUS
Inoperative
DISTRONICPLU Sis malfunctioning
BA S(anti-lock braking system) may also hav efailed.
A warning tone also sounds.
XVisit aqualified specialist workshop .
DISTRONIC PLUS
Suspended
You havedepressed th eaccelerato rpedal .DISTRONI CPLU Sis no
longer controllin gth espeed of th evehicle.
XRemove your foo tfrom th eaccelerato rpedal .
DISTRONIC PLU S
- - -mph
An activation condition for DISTRONI CPLU Sis no tfulfilled .
XCheckth eactivation condition sfor DISTRONI CPLU S (Ypage 134).
Cruise Contro l
- - -mph
Acondition for activating cruise control has no tbeen fulfilled .
You hav etried to store aspeed belo w20 mph (30 km/ h), for example.
XIf conditions permit, drive faster than 20 mph (30 km/ h)and store
the speed.
XCheck the activation conditions for cruise control (Ypage 133).
186Display messages
On-board computer and displays