2017 MERCEDES-BENZ GLS-Class SUV engine

Important safety notes
GWARNING
If you operate information systems and com-
munication equipmen tintegrate din th evehi-
cle while driving ,you will be distracte dfrom
traffic conditions. You could also lose control
of th evehicle. Ther eis aris kof an accident.
Only operate th eequipmen twhen th etraffic
situation permits. If you are no tsur ethat this
is possible ,park th evehicl epayin gattention
to traffic condition sand operate th eequip-
men twhen th evehicl eis stationary.
You must observ eth elegal requirements for th e
country in whic hyou are currentl ydriving when
operating th eon-board computer.
GWARNIN G
If th einstrumen tcluste rhas faile dor mal-
functioned, you may no trecognize function
restriction sin systems relevan tto safety. The
operating safet yof your vehicl emay be
impaired .Ther eis aris kof an accident.
Drive on carefully. Hav eth evehicl echecke d
at aqualified specialist workshop immedi-
ately.
If th eoperating safet yof your vehicl eis
impaired ,pull ove ras soo nas it is saf eto do so.
Contac t aqualified specialist workshop.
The on-board computer only shows message sor
warning sfrom certain systems in th emultifunc-
tion display. You should therefor emak esur e
your vehicl eis operating safely at all times .
Fo ran overview, see th einstrumen tpanel illus-
tration (
Ypage 34).
Displays and operation
Instrument cluster lighting
The lighting in th einstrumen tcluster, in th edis-
plays and th econtrol sin th evehicl einterior can
be adjusted usin gth ebrightness control knob.
The brightness control knob is locate don th e
botto mleftof th einstrumen tcluste r
(
Ypage 34).
XTurn th ebrightness control knob clockwise or
counter-clockwise.
If you tur nth eligh tswitch to Ã,Tor
L, thebrightness is dependen tupon th e
brightness of th eambien tlight.
iThe ligh tsensor in th einstrumen tcluste r
automatically control sth ebrightness of th e
multifunction display.
In daylight, th edisplays in th einstrumen t
cluste rare no tilluminated.
Speedometer with segments
The segments in th espeedometer indicat e
whic hspee drange is available.
RCruis econtrol activated (Ypage 172):
The segments ligh tup from th estore dspee d
to th emaximum speed.
RDistanc ePilot DISTRONI Cis activated
(Ypage 174):
On eor two segments in th eset spee drange
ligh tup.
RDistanc ePilot DISTRONI Cdetects avehicl ein
fron tmoving mor eslowly than th estore d
speed:
The segments between th espee dof th evehi-
cle in fron tand th estore dspee dligh tup.
Tachometer
!
Do no tdriv ein th eoverrevving range, as this
could damag eth eengine.
The red ban din th etachometer indicates th e
engine's overrevving range.
The fuel suppl yis interrupted to protect th e
engin ewhen th ered ban dis reached.
Outside temperature display
You should pay special attention to road condi-
tion swhen temperatures are aroun dfreezing
point.
Bea rin min dthat th eoutside temperature dis-
play indicates th etemperature measured and
does no trecord th eroad temperature.
The outside temperature display is in th emulti-
function display (
Ypage 231).
Displays and operation229
On-board computer and displays
Z

There is a short delay before a change in outside
temperature appears in the multifunction dis-
play.
Coolant temperature gauge
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The engine
will otherwise be damaged.
The coolant temperature gage is in the instru-
ment cluster on the right-hand side (
Ypage 34).
Under normal operating conditions and with the
specified coolant level, the coolant temperature
may rise to 248 ‡ (120 †).
Operating the on-board computer
Overview
:Multifunction display
;Right control panel
=Left control panel
XTo activate the on-board computer: turn
the SmartKey to position 1in the ignition lock.
You can control the multifunction display and
the settings in the on-board computer using the
buttons on the multifunction steering wheel.
Vehicles with the COMAND multimedia system:
you can find further information on the Voice
Control System in the separate operating
instructions.
Vehicles with the Audio 20 multimedia system:
you can find further information on voice-oper-
ated navigation in the manufacturer's operating
instructions.
230Displays and operation
On-board computer and displays

Displaying theassistance graphic
XPress th e= or; buttonon th esteerin g
whee lto selec tth eDriveAssistmenu.
XPress 9or: to selec tAssistanc eGraphic.
XConfirmby pressing aon thesteerin g
wheel.
The multifunction display shows th eDistanc e
Pilo tDISTRONIC distanc edisplay in th eassis-
tanc egraphi cdisplay.
The assistanc egraphi cdisplays th estatus of
and information from th efollowin gdrivin g
systems or drivin gsafet ysystems :
RTraffic Sign Assis t (Ypage 206)
RDistancePilo tDISTRONIC (Ypage 174)
RActive BrakeAssis t (Ypage 64)
RActive Brak eAssis twit hcross-traffic func-
tion (Ypage 70 )
RATTENTION ASSIST (Ypage 205)
RLaneKeepin gAssis t (Ypage 209) or Active
Lan eKeepin gAssis t (Ypage 213)
RDSR (Ypage 216)
ROff-road program (vehicles wit hOff-Road
Engineerin gpackage) (Ypage 218)
RRear window wipe r (Ypage 120)
XPress:to display th eATTENTION ASSIST
assessment.
Activating/deactivating Steering Pilo t
XPress the= or; buttonon th esteerin g
whee lto selec tth eDriveAssistmenu.
XPress 9or: to selec tSteeringPilot.
XConfir mby pressing aon thesteerin g
wheel.
The curren tselection appears .
XTo activate/deactivate :press th ea but-
to nagain .
Whe nth eSteerin gPilo tis activated, th emul-
tifunction display displays aSteering
PilotOnmessage. Further information about Distanc
ePilo t
DISTRONIC wit hSteerin gPilo t (
Ypage 180).
Activating or deactivating Active Brak e
Assis t
You can use these function sto activate/deac -
tivat eActive Brak eAssis tor ,on vehicles wit h
th eDriving Assistanc epackage, to activat eor
deactivat eActive Brak eAssis twit hcross-traffic
function .
XPress the= or; buttonon th esteerin g
whee lto selec tth eDriveAssistmenu.
XPress th e9 or: buttonto selec t
Brake Assist.
XPress ato confirm .
The curren tselection appears .
XTo activate/deactivate :press th ea but-
to nagain .
Whe nActive Brak eAssis tor Active Brak e
Assis twit hcross-traffic function is deactiva-
ted, th eæ symbol appears in th emulti-
function display in th eassistanc egraphi cdis -
play.
Further information on Active Brak eAssis t
(
Ypage 64) and Active Brak eAssis twit hcross -
traffic function (Ypage 69).
Activating/deactivating ATTENTIO N
ASSIS T
XPress th e= or; buttonon th esteerin g
whee lto selec tth eDriveAssistmenu.
XPress th e9 or: buttonto selec t
Attention Assist.
XPress th ea button.
The curren tselection appears .
XPressato confirm .
XPress the: or9 buttonto set Off,
Standardor Sensitive.
XPress th ea buttonto sav eth esetting .
Whe nATTENTION ASSIST is deactivated, th e
é symbol appears in th emultifunction dis -
play in th eassistanc egraphics display.
Fo rfurther information about ATTENTION
ASSIST ,see (
Ypage 205).
Menus and submenus237
On-board computer and displays
Z

XPress the:or9 button to select Noor
Yes.
XPress ato confirm the selection.
If you select Yes, the multifunction display
shows a confirmation message.
If you want to reset the Daytime Running
Lightsfunction in theLightsubmenu, you
must turn the SmartKey to position 1in the igni-
tion lock.
ON&OFFROAD menu
XPress the =or; button on the steering
wheel to select the ON&OFFROADmenu.
You can view the current off-road program set-
tings in the ON&OFFROAD
menu:
RVehicles with the Off-Road Engineering pack-
age (Ypage 218)
RVehicles without the Offroad Engineering
package (Ypage 217)
AMG menu (Mercedes-AMG vehicles)
Warm-up
:Digital speedometer
;Gear indicator
=Upshift indicator
?Engine oil temperature
ACoolant temperature
BTransmission oil temperature
XPress the =or; button on the steering
wheel to select the AMGmenu.
Upshift indicator: upshift indicatorUp=
indicates that the engine has reached the
overrevving range when in the manual drive
program.
Engine/transmission oil temperature:
when the engine and transmission are at nor-
mal operating temperature, oil tempera-
ture ?and Bare displayed in white in the
multifunction display. If the multifunction display shows oil temper-
ature
?orB in blue, the engine or the
transmission are not yet at normal operating
temperature. Avoid driving at full engine out-
put during this time.
SETUP
:Engine mode (Comfort/Sport/Sport +)
;Suspension setting Comfort/Sport/
Sport +
=Transmission position D/M
?ESP®mode (ON/OFF)
SETUP displays the following information/func- tions:
Rthe digital speedometer
Rthe gear indicator
Rthe engine mode
Rthe suspension mode
Rthe transmission position
Rthe ESP®(Electronic Stability Program) mode
XPress the =or; button on the steering
wheel to select the AMGmenu.
XPress the9button repeatedly until SETUP
is displayed.
RACETIMER
Displaying and starting RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function on
public roads.
:Lap
;RACETIMER
Menus and submenus241
On-board computer and displays
Z

You can start the RACETIMER when the engine is
running or if the SmartKey is in position2in the
ignition lock.
XPress the =or; button on the steering
wheel to select the AMGmenu.
XPress the9button repeatedly until the
RACETIMER is shown.
XTo start: press the abutton to start the
RACETIMER.
Displaying the intermediate time
XPress the =or; button to select
Interm. Time.
XPress ato confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap
:RACETIMER
;Fastest lap time (best lap)
=Lap
XPress ato confirm New Lap.
iIt is possible to store a maximum of sixteen
laps. The 16th lap can only be completed with
Finish Lap
.
Stopping the RACETIMER
XPress the %button on the steering wheel.
XConfirm Yeswitha.
The RACETIMER interrupts timing if you stop the
vehicle and turn the SmartKey to position 1in
the ignition lock. If you turn the SmartKey to
position 3and then press ato confirm
Start
, timing is continued.
Resetting the current lap
XStop the RACETIMER.
XPress the =or; button to select
Reset Lap.
XPress ato reset the lap time to "0".
Deleting all laps
If you switch off the engine, the RACETIMER is
reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individual stored laps. If you
have stopped 16 laps, the current lap does not
have to be reset.
XReset the current lap.
XPress ato confirm Reset.
Reset Race Timer?appears in the multi-
function display.
XPress the :button to select Yesand press
the a button to confirm.
All laps are deleted.
Overall statistics
:RACETIMER overall evaluation
;Total time driven
=Average speed
?Distance covered
AMaximum speed
242Menus and submenus
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning .
XSwitchoff th eignition and tur nit bac kon .
XApply th eelectric parking brake.
If it is no tpossibl eto engage th eelectric parking brake:
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
If it is no tpossibl eto release th eelectric parking brake:
XReleas eth eelectric parking brak eautomatically (Ypage 160).
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
The yellow!warning lamp lights up. If you manually apply or
release th eelectric parking brake, th ered F (USAonly) or !
(Canada only) indicator lamp flashes .
The electric parking brak eis malfunctioning .It is no tpossibl eto apply
th eelectric parking brak emanually.
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
F(USA
only)
!( Canada
only)
Parkin gBrake Inop‐
erativ e
The yellow !warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning ,e.g. because of over-
voltag eor undervoltage.
XRemove th ecaus efor th eovervoltage or undervoltage, e.g. by
charging th ebattery or restarting th eengine.
XEngage or release th eelectric parking brake.
If it remain simpossible to apply or release th eelectric parking brake:
XSwitc hoff th eignition and tur nit bac kon .
XEngage or release th eelectric parking brake.
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
If th eelectric parking brak estill canno tbe applied:
XVisit aqualified specialist workshop .
Display messages249
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
$(USA
only)
J( Canada
only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak eflui dreservoir .In addition ,
th e$ (USAonly) or J(Canada only) warning lamp lights up in
th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 159).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th e$ red brak esystem warning lamp is lit while th e
engin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
ActiveBrakeAssistFunctionsCurrentlyLimitedSee Opera‐tor's Manual
Active Brake Assis twit hcross-traffic function is temporarily inopera-
tive.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis twit hcross-traffic function or PRE ‑S AF E
®PLU Sis
functional 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 159).
XRestart th eengine.
250Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
ActiveBrakeAssistFunctions LimitedSee Operator'sMan ‐ual
Active Brake Assis tis unavailable due to amalfunction .Adaptive
Brake Assis tmay also hav efailed.
XVisit aqualified specialist workshop immediately.
PRE-SAFE Inopera‐tiv eSeeOperator' sManual
Importantfunction sof PRE-SAF E®havefailed. Al lother occupant
safet ysystems ,e.g. air bags ,remain available.
XVisit aqualified specialist workshop immediately.
ActiveBrakeAssistFunctionsCurrentlyLimite dSee Opera‐tor's Manual
Active Brake Assis tor PRE‑ SAFE®PLUSis temporarily inoperative.
Possibl ecauses are:
Rfunction is impaire ddue to heav yrain or snow
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
RMercedes-AMG vehicles: ES P®is deactivated
Rthesystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis tor PRE‑ SAFE
®PLUSis operative 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 159).
XRestart th eengine.
XMercedes-AMG vehicles: switch ES P®on again(Ypage 67).
ActiveBrakeAssistFunctions Limite dSee Operator'sMan ‐ual
Active Brake Assis twit hcross-traffic function or PRE ‑S AF E®PLU Sis
no tavailable due to amalfunction .
XVisitaqualified specialist workshop immediately.
Display messages25 1
On-board computer and displays
Z