MERCEDES-BENZ GL-Class 2016 X166 Owner's Manual

Display messagesPossible causes/consequences andMSolutions
4
Engine Oil Level
StopVehicl eTur n
Engine Off
Mercedes-AMG vehicles: th eengin eoil level is to olow.
There is aris kof engin edamage.
XPull ove rand stop th evehicl esafely and switch of fth eengine,
payin gattention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XCheckth eengin eoil level (Ypage 371).
XIf necessary, add engin eoil (Ypage 372).
8
Fue lLevel Low
The fuel level has dropped into th ereserv erange.
XRefuel at th eneares tgas station .
CThere is only aver ysmall amount of fue lin th efuel tank.
XRefuel at th eneares tgas station without fail .
8
Gas Cap Loose
The fuel system pressur eis to olow. The fuel filler cap is no tclosed
correctl yor th efue lsystem is leaking.
XChec kthat th efue lfiller cap is correctl yclosed .
If th efuel filler cap is not correctl yclosed :
XCloseth efuel filler cap .
If th efuel filler cap is correctl yclosed :
XVisitaqualified specialist workshop .
8
Ultra Low-sulfur
Diesel FuelOnl y
Vehicles wit h adiesel engine: th efuel level has fallen belo wthe
reserv erange.
XRefuel at th eneares tgas station .
XOnly use commercially available vehicular ULTRA-LOW SULFUR
HIGHWAY DIESEL FUEL (ULSD ,15 ppm sulfur MAXIMUM) .
¸
ReplaceAir Filter
Vehicles wit h adiesel engine: th eengin eair filte ris dirty and mus t
be replaced.
XVisit aqualified specialist workshop .
!
Check FuelFilter
Vehicles wit h adiesel engine: there is water in th efuel filter. The
water mus tbe draine doff.
XVisit aqualified specialist workshop .
Display messages309
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Ø
CheckAdditiveSee
Operator'sManual
The DE Ftan kis almost empty.
XHav eth eDE Ftan kfilled as soo nas possibl eat aqualified spe -
cialist workshop (
Ypage 186).
Ø
Remaining Starts :
16
The DEFlevel has fallen to aminimum .You can start th eengin e a
further 16 times .
XHaveth eDE Ftan kfilled immediately at aqualified specialist
workshop (
Ypage 186).
iYou can start th eengin e afurther 16 times .If DE Fis no tadded ,
it will then no tbe possibl eto restar tth eengine. Refill th eDE F
tan kwit happroximately 1gal (3.8 l)DEF (
Ypage 186).
Driving systems
Display messagesPossible causes/consequences and MSolutions
À
Attention Assist:
Take a Break!
Based on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.
XIf necessary, take a break.
During long journeys, take regular breaks in good time so you get enough rest.
À
Attention Assist
Inoperative
ATTENTION ASSIST is inoperative.
XVisit a qualified specialist workshop.
Á
Drive More Slowly
You cannot change the vehicle level. Possible causes are:
Ryou are driving too fast for the selected vehicle level.
Ryou are towing a trailer.
Rthe socket of the trailer tow hitch is being used, e.g. for a bicyclerack.
XDrive more slowly and then select the desired vehicle level
again.
RVehicles with the ON&OFFROAD package (Ypage 213)
RVehicles with the AIRMATIC package (Ypage 219)
XObserve the notes on towing a trailer (Ypage 264).
310Displa y messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Á
Compressoriscool‐
ing
You haveselected ahigher vehicl elevel. The compressor first
needs to cool down because of frequen tlevel changes.
XDrive in amanne rappropriat efo rth ecurren tvehicl elevel.
XMak esur ethat there is sufficien tground clearance .
XAllow thecompressor to cool down .
Whe nth ecompressor has cooled down ,th edisplay message
disappears. The vehicl ethen continues risin gto th eselected
level.
Á
Malfunction
AIRMATIC is malfunctioning.
XDrive as appropriat efo rth ecurren tvehicl elevel, but do no t
exceed 50 mph (80 km/h).
XMak esur ethat there is sufficien tground clearance .
XHaveth esystem checke dat aqualified specialist workshop .
Á
Max.speed 12 mph
You are exceedin gth espeed permissibl efo rth eselected off-roa d
level.
In addition ,th evehicl elevel display appears between th evehicl e
ico nand th edisplay message ,and awarnin gtone sounds.
GWARNIN G
The vehicl ecould ti pand rollover.
There is aris kof an accident.
XAdjus tyour drivin gstyle to th ealtere dhandlin gcharacteristics .
XOnly makeslight steerin gmovement sand avoid fas tsteerin g
movements.
XDo no texceed 12 mph (20 km/h)unt ilthe vehicle has reached
off-road level 2.
ACTIVE CURVE SYS‐
TEM malfunctioning
The Active Curve System isfaulty. The vehicle's handlin g charac-
teristics may be affecte d.
XDo not drive at speedsabove 50 mph(80 km/h).
XHave the system checked at a qualified specialist workshop.
Display messages311
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
ACTIVE CURVE SYS‐
TEM Malfunction
SeeOperator'sMan‐
ual
The Active Curv eSyste mis faulty. The vehicle's handlin gcharac -
teristics are severely impaired. Awarnin gtone also sounds.
GWARNIN G
There isaris kof an accident.
XDrive on carefully.
XAdjus tyour drivin gstyle to th ealtere dhandlin gcharacteristics .
XAvoid sudden acceleration around tight corners and fas tsteer -
in g movements.
XDo no tdrive at speeds abov e50 mph (80 km/ h).
XVisit a qualified specialist workshop immediately.
Á
RaisingMax.speed
12 mph
The vehicle is being adjusted to off-road level 3. The display mes-
sage informs you of the maximum speed permissible for off-road
level 3.
XDo not drive at speeds above 12 mph (20 km/h).
g
LoweringMax.
speed 12 mph
The vehicle is being lowered from off-road level 3 to off-road level
2. The display message informs you of the maximum speed per-
missible for off-road level 3.
XDo not exceed 12 mph (20 km/h) until the vehicle has reached
off-road level 2.
8
Different. lock
sys. Malfunction
The differential lock is faulty.
XDo not drive at speeds above 50 mph (80 km/h).
XHave the system checked at a qualified specialist workshop.
8
Different.locking
sys. cooling down
Please wait
The differential lock is too hot and has been disengaged.
XDrive on carefully.
XAllow the differential lock to cool down.
The differential lock re-engages as soon as it has cooled down.
LOW RANGE Stop
Applyparkingbrake
A gearshift process has been canceled. LOW RANGE is in the neu-
tral position. There is no connection between the engine and the
drive wheels.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XApply the electric parking brake. Do not continue driving under
any circumstances.
XRepeat the gearshift process.
312Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
LOW RANGE Malfunc‐
tionTo park,
applyparkin gbrake
LOWRANGE is malfunctioning.
XDo no tdrive at speeds abov e50 mph (80 km/h).
XWhe nparking, secure th evehicl eagainst rollin gaway
(
Ypage 189).
XHav eth esystem checke dat aqualified specialist workshop .
LOW RANGE max.
speed 25 mph
You haveexceeded th emaximum speed fo rth egearshift process.
XDrive mor eslowly.
The gear chang eis made .
LOW RANGE max .
speed 40 mph
You haveexceeded th emaximum speed fo rth egearshift process.
XDrive mor eslowly.
The gear chang eis made .
LOWRANGEShiftto
position Nbriefl y
You hav ereduce dth evehicl espeed, but th eautomati ctransmis -
sio nis no tin position N.
XBriefly shift th eautomati ctransmissio nto position N.
LOWRANGEShifting
Canceled Please
Reactivat e
The gearshift process has been canceled.
XRepeatth egearshift process.
Ã
Inoperative
DS R(Downhill Speed Regulation )is deactivated due to amalfunc -
tion .
XHaveDS Rchecke dat aqualified specialist workshop .
ë
Off
The HOLD function is deactivated. The vehicl eis skidding.
A warnin gtone also sounds.
XReactivat eth eHOLD function later (Ypage 217).
Display messages313
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
LaneKeepin g
Assist Currently
Unavailable See
Operator' sMan ‐
ualorActive Lan e
KeepingAssistCur‐
rentlyUnavailable
SeeOperator' sMan‐
ual
LaneKeepin gAssis tor Active Lan eKeepin gAssis tis deactivated
and temporarily inoperative. Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty.
Rvisibility is impaire ddue to heav yrain ,snow or fog.
Rthere hav ebeen no lan emarking sfo ran extended period.
Rth elan emarking sare worn, dark or covered, e.g. by dir tor snow.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears.
Lan eKeepin gAssis tor Active Lan eKeepin gAssis tis operational
again .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XClean th ewindshield.
Lan eKeepin g
Assist inopera‐
tiveorActive Lan e
KeepingAssist
inoperative
Lan eKeepin gAssis tor Active Lan eKeepin gAssis tis defective.
XVisit aqualified specialist workshop .
Blind SpotAssist
Currently Unavail‐
abl eSee Opera‐
tor's Man ‐
ualorActive Blind
Spo tAssist Cur ‐
rentlyUnavailable
SeeOperator'sMan‐
ual
Blind Spot Assis tor Active Blind Spot Assis tis temporarily inop-
erative .Possibl ecauses are:
Rth erada rsensor system is outside th eoperating temperature
range.
Rth erada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radi osta-
tion sor other source sof electromagnetic radiation .
The yello w9 indicato rlamp salso ligh tup in th eexterio rmir -
rors.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears.
Blind Spot Assis tor Active Blind Spot Assis tis operational again .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XRestart th eengine.
314Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Blind SpotAssist
NotAvailableWhe n
Towing aTraile r
SeeOperator' sMan‐
ualorAct. Blind
Spo tAsst. Not
AvailableWhe nTow‐
ing aTraile rSee
Operator' sManual
Blind Spot Assis tor Active Blind Spot Assis tis deactivated while
towin g atrailer .
You hav eestablished th eelectrica lconnection between th etrailer
and your vehicle.
XPress aon thesteerin gwhee lto confirm th edisplay mes -
sage .
Blind Spo tAssist
inopera‐
tiv eorActive Blind
Spo tAssistinoper ‐
ative
Blind Spot Assis tor Active Blind Spot Assis tis defective.
The yello w9 indicato rlamp salso ligh tup in th eexterio rmir -
rors.
XVisit aqualified specialist workshop .
ParkAssist Can ‐
celed
The driver's doo ris open .
XRepeatth eparkin ggap measuremen tand parkin gprocess wit h
th edriver's doo rclosed .
You hav einadvertentl ytouched th emultifunction steerin gwhee l
while steerin gintervention was active .
XWhilesteerin gintervention is active ,mak esur ethat th emulti-
function steerin gwhee lis no ttouched unintentionally.
The vehicl ehas started to skid and ES P®has intervened.
XUse Active Parking Assistagain later (Ypage 227).
ParkAssistInoper ‐
ative
PARKTRONI Cis malfunctionin gor faulty.
XFollow th einstruction sand helpful hints in th e"Problems wit h
PARKTRONIC" section (
Ypage 227).
If th emultifunction display still shows th edisplay message :
XVisitaqualified specialist workshop .
Active Parking Assistis unavailable or faulty.
XSwitc hof fth eignition and restar tth eengine.
If Active Parking Assis tcontinues to be unavailable (the jsymbol
does no tappea rin th emultifunction display):
XVisit aqualified specialist workshop .
ParkAssist
switched off
The vehicl eis parked. Awarnin gtone also sounds.
The display message disappear sautomatically.
Display messages31 5
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
DISTRONIC PLUSoffDISTRONIC PLU Shas been deactivated (Ypage 205).
If it was deactivated automatically, awarnin gtone also sounds.
DISTRONIC PLU S
available again
DISTRONIC PLUSis operational again after havin gbeen tempo -
rarily unavailable .You can no wreactivat eDISTRONIC PLU S
(
Ypage 205).
DISTRONICPLU SCur‐
rentlyUnavailable
SeeOperator' sMan‐
ual
DISTRONIC PLU Sis temporarily inoperative.
Possibl ecauses are:
Rfunction is impaire ddue to heav yrain or snow.
Rth erada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radi osta-
tion sor other source sof electromagnetic radiation .
Rthesystem is outside th eoperating temperature range.
Rth eon-boar dvoltag eis to olow.
A warnin gtone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears.
DISTRONIC PLU Sis operational again .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XRestart th eengine.
DISTRONIC PLU S
inoperative
DISTRONIC PLUSis defective.
The following may hav ealso failed:
RBA SPLU S
RPRE-SAF E®Brake
A warnin gtone also sounds.
XVisit aqualified specialist workshop .
DISTRONICPLUSsus‐
pended
You hav edepressed th eaccelerato rpedal .DISTRONIC PLU Sis no
longer controllin gth espeed of th evehicle.
XRemove your foot from th eaccelerato rpedal .
DISTRONIC PLU S
- - -mph
An activation condition fo rDISTRONIC PLU Sis no tfulfilled .
XCheckth eactivation condition sfo rDISTRONIC PLU S
(
Ypage 205).
316Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Cruise control
inoperative
Cruisecontrol is malfunctioning.
XVisit aqualified specialist workshop .
Cruise control
--- mph
Acondition fo ractivatin gcruise 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 202).
Display messages317
On-board computer and displays
Z

Tires
Display messagesPossible causes/consequences andMSolutions
Check Tire Pres‐
sure Soon
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
Possible causes:
Ryou have changed the positions of the wheels and tires or instal-
led new wheels and tires.
Rthe tire pressure in one or more tires is not correct.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed
increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 189).
XCheck the tires and, if necessary, follow the instructions for a
flat tire (
Ypage 387).
XCheck the tire pressures and, if necessary, correct the tire pres-
sure.
XRestart the tire pressure loss warning system when the tire
pressure is correct (
Ypage 412).
Check Tire Pres‐
sure Then Restart
Run Flat Indicator
The tire pressure loss warning system generated a display mes-
sage and has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 412).
RunFlatIndicator
Inoperative
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
Please Correct
Tire Pressure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 412).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 415).
318Displa y messages
On-board computer and displays