2017 MERCEDES-BENZ GLS-Class SUV change time

!A function or performance test should only
be carried out on a two-axle dynamometer.
Before you operate the vehicle on such a
dynamometer, please consult a qualified
workshop. You could otherwise damage the
drive train or the brake system.
iIn wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if you
use winter tires (M+S tires), with snow chains
if necessary.
Further information about "Driving off-road"
(
Ypage 168).
DSR (Downhill Speed Regulation)
General notes
DSR is an aid to assist you when driving down-
hill. It keeps the speed of travel at the speed
selected on the on-board computer. The steeper
the downhill gradient, the greater the DSR brak- ing effect on the vehicle. When driving on flat
stretches of road or on an uphill gradient, the
DSR braking effect is minimal or nonexistent.
DSR controls the vehicle’s speed when it is acti-
vated and the transmission is in position D,Ror
N. You can drive at a higher or a lower speed
than that set on the on-board computer at any
time by accelerating or braking.
Important safety notes
GWARNING
If the speed driven and the set speed deviate and you activate DSR on a slippery road sur-
face, the wheels may lose traction. There is an
increased danger of skidding and accidents.
Before switching DSR on, please take into
consideration the road surface and the differ- ence between driving speed and the set
speed.
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor override the laws of physics. DSR cannot take account of
road, weather and traffic conditions. DSR is only
an aid. You are responsible for the distance to
the vehicle in front, for vehicle speed, for brak-
ing in good time and for staying in your lane.
You are always responsible for keeping control
of the vehicle and for assessing whether the
downhill gradient can be managed. DSR may not always be able to keep to the set speed, depend- ing on road surface and tire conditions. Select a
set speed suitable for the prevailing conditions
and when necessary, apply the brakes manually.
Activating DSR
XPress button
:.
Indicator lamp ;lights up.
The à DSR symbol appears in the multi-
function display.
You can only activate DSR when driving at
speeds below 25 mph (40 km/h).
If the current vehicle speed is too high, the Ã
DSR symbol appears in the multifunction display
with the Max. speed 25 mph
message (Can-
ada: 40 km/h).
If you have activated DSR and you change the
drive program, DSR is deactivated. If you switch
between the offroad and offroad plus drive pro-
grams, DSR remains activated.
Deactivating DSR
XPress button :.
Indicator lamp ;goes out.
The à DSR symbol appears in the multi-
function display with the Off
message.
On vehicles with the Offroad Engineering pack-
age, if you select a different drive program, DSR is also deactivated. If you switch between the
Offroad programs, DSR remains activated.
DSR switches off automatically if you drive
faster than 28 mph (Canada: 45 km/h). The
à DSR symbol appears in the multifunction
display with the Off
message. The status indi-
cator in the multifunction display goes out. You
also hear a warning. On vehicles with the Off-
road Engineering package, if you select a differ-
ent onroad/offroad program, DSR is also deac-
tivated.
216Driving systems
Driving and parking

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 therange an dcurrent fuel
consumption
Mercedes-AMG vehicles :th emen uonly dis -
plays approximat erange :.
XPress th e= or; buttonon th esteerin g
whee lto selec tth eTri pmenu.
Digital speedometer
XPress th e= or; buttonon th esteerin g
whee lto selec tth eTri pmenu.
XPress th e9 or: buttonto selec tth e
digita lspeedometer.
A gear shift recommendation Zcan also
appear.
Observ eth einformation on gearshift recom -
mendation Zwhen shiftin gmanually
(
Ypage 150).
Mercedes-AMG vehicles : agearshift recom -
mendation is shown in th estatus bar of th e
multifunction display and no tin th edigita l
speedometer display.
Resetting value s
XPress the= or; buttonon th esteerin g
whee lto selec tth eTri pmenu.
XPress th e9 or: buttonto selec tth e
function that you wish to reset .
XPressato confirm your selection .
XPress:to selec tYesand press ato
confirm .
You can reset th evalues of th efollowin gfunc-
tions:
RTrip odometer
R"From Start "trip compute r
R"From Reset" trip compute r
RECOdisplay
If you reset th evalues in th eEC Odisplay, th e
values in th e"From Start "trip compute rare also
reset .If you reset th evalues in th e"From Start "trip computer, th
evalues in th eEC Odisplay are
also reset .
Navigation syste mmenu
Displaying navigation instructions
In th eNav imenu, th emultifunction display
shows navigation instructions.
Observ eth eadditional information on naviga-
tion in th eseparat emultimedia system operat -
in g instructions.
XSwitc hon th emultimedia system (se esepa-
rat eoperatin ginstructions).
XPress th e= or; buttonon th esteerin g
whee lto selec tth eNav imenu.
Route guidance not active
:Direction of trave l
;Currentroad
Route guidance active
No change of direction announced
:Distanc eto destination
;Distanc eto th enext chang eof direction
=Curren troad
?"Follow th eroad's course" symbol
Menus and submenus233
On-board computer and displays
Z

Change of direction announced without a
lane recommendation
:Road into which the change of direction
leads
;Distance to change of direction and visual
distance display
=Change-of-direction symbol
When a change of direction is to be made, you
will see symbol =for the change of direction
and distance graphic ;. The distance indicator
shortens towards the top of the display as you
approach the point of the announced change of
direction. The change of direction starts once
the distance display reaches zero.
Change of direction announced with a
lane recommendation
:Road into which the change of direction
leads
;Distance to change of direction and visual
distance display
=Lanes not recommended
?Recommended lane and new lane during a
change of direction
AChange-of-direction symbol
On multilane roads, lane recommendations can
be displayed for the next change of direction if
the digital map supports this data. During the
change of direction, new lanes may be added.
Lane not recommended =: you will not be able
to complete the next change of direction if you
stay in this lane.
Recommended lane and new lane during a
change of direction ?: in this lane you will be
able to complete the next two changes of direc-
tion without changing lane.
Other status indicators of the naviga-
tion system
The navigation system displays additional infor-
mation and the vehicle status.
Possible displays:
RNew Route...or Calculating Route...
A new route is calculated.
RRoad Not Mapped
The vehicle position is inside the area of the
digital map but the road is not recognized, e.g.
newly built streets, car parks or private land.
RNo Route
No route could be calculated to the selected
destination.
RO
You have reached the destination or an inter-
mediate destination.
Audio menu
Selecting a radio station
:Active station list
;Station frequency with memory position
The multifunction display shows station ;with
station frequency or station name. The preset
position is only displayed along with station ;if
this has been stored. You can store TV chan-
nels ;in the multimedia system.
XSwitch on the multimedia system and select
radio; see the separate operating instruc-
tions.
XPress the =or; button on the steering
wheel to select the Audiomenu.
234Menus and submenus
On-board computer and displays

The speed display is inverse to the speedome-
ter.
XPress the=or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Instrument Clustersubmenu.
XConfirm by pressing aon the steering
wheel.
XPress the :or9 button to select the
Permanent Display:function.
The current setting, Outside Temperature,
Speedometer [km/h]or Speedometer[mph]appears.
XTo change the setting: pressaagain.
Light submenu
Setting the daytime running lamps
This function is not available in Canada.
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Lightsubmenu.
XPress ato confirm.
XPress :or9 to select the DaytimeRunning Lightsfunction.
If the DaytimeRunningLightsfunction has
been switched on, the cone of light and the
W symbol in the multifunction display are
shown in orange.
XPress the abutton to save the setting.
Further information on daytime running lamps
(
Ypage 112).
Switching the Intelligent Light System
on/off
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Lightsubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Intell. Light Systemfunction.
If the Intell. Light Systemfunction has
been switched on, the cone of light and the
L symbol in the multifunction display are
shown in orange.
XPress the abutton to save the setting.
When you activate Intell. Light System
,
you activate the following functions:
RHighway mode
RActive light function
RCornering light function
RExtended range fog lamps
ROff-road lights
Further information on the Intelligent Light Sys-
tem (
Ypage 114).
Vehicle submenu
Activating/deactivating the automatic
door locking mechanism
If you activate the AutomaticDoorLockfunc-
tion, the vehicle is centrally locked above a
speed of approximately 9 mph (15 km/h).
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Vehiclesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Automatic Door Lockfunction.
When the Automatic Door Lockfunction is
activated, the vehicle doors are displayed in
orange in the multifunction display.
XPress the abutton to save the setting.
For further information on the automatic locking
feature, see (
Ypage 81).
Activating/deactivating the acoustic
locking verification signal
If you switch on the AcousticLockfunction, an
acoustic signal sounds when you lock the vehi-
cle.
XPress the =or; button on the steering
wheel to select the Settingsmenu.
XPress the:or9 button to select the
Vehiclesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Acoustic Lockfunction.
If the Acoustic Lockfunction is activated,
the & symbol in the multifunction display
lights up orange.
XPress the abutton to save the setting.
Menus and submenus239
On-board computer and displays
Z

Drivingsystems
Display messagesPossible causes/consequences an dMSolutions
À
Attention Assist :Take a Break!
Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
a lac kof concentration on th epar tof th edriver . Awarnin gtone also
sounds.
XIf necessary, take abreak .
Durin glon gjourneys, take regular break sin goo dtime so you get
enough rest.
À
Attention AssistInoperative
ATTENTION ASSIST is inoperative .
XVisitaqualified specialis tworkshop .
Á
Drive Mor eSlowly
You canno tchang eth evehicle level.
Possible causes are :
Ryou are drivingto ofas tfo rth eselecte dvehicle level
Ryou are drivin gto ofas twit h a trailer or th etrailer-couplin gsocke tis
bein gused ,e.g. fo r abicycl erac k
XDrive more slowly and then selec tth edesire dvehicle level again .
RVehicles withth eOff-Road Engineerin gpackage (Ypage 182)
RVehicles wit hth eAIRMATIC package (Ypage 188)
XObserveth enote son towin g atrailer (Ypage 222).
Á
Compresso rIs Cool‐ing
You hav eselecte d ahigher vehicle level. The compressor first needs
to cool down because of frequent level changes.
XDrive in amanne rappropriat efo rth ecurren tvehicle level.
XMak esur ethat there is sufficien tgroun dclearance.
XAllow th ecompressor to cool down .
Whe nth ecompressor has cooled down ,th edisplay messag edis -
appears .The vehicle then continues risin gto th eselecte dlevel.
Á
Malfunction
AIRMATIC is malfunctioning.
XDrive as appropriat efo rth ecurren tvehicle level, but do no texceed
50 mph (80 km/h).
XMak esur ethat there is sufficien tgroun dclearance.
XVisit aqualified specialis tworkshop .
Display messages261
On-board computer and displays
Z

General notes
The multimedia system section in this Opera-
tor's Manual describes the basic principles for
operation. More information can be found in theDigital Operator's Manual.
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the
country in which you are currently driving when
operating the multimedia system.
The multimedia system calculates the route to
the destination without taking the following into
account, for example:
Rtraffic lights
Rstop and yield signs
Rparking or stopping restrictions
Rroad narrowing
Rother road and traffic rules and regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example:
Ra diverted route
Rthe road layout or the direction of a one-way
street has been changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey. Road and traffic rules and regulations
always have priority over multimedia system
driving recommendations.
Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving. Please always use this feature instead of con-
sulting the map display for directions. Looking
at the icons or map display can distract you from
traffic conditions and driving, and increase the
risk of an accident.
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equip-
ment and meets the FCC radio frequency (RF)
Exposure Guidelines in Supplement C to OET65.
This equipment has very low levels of RF energy
that is deemed to comply without maximum
permissive exposure evaluation (MPE). How-
ever, it is recommended
to insta
ll it at a distance
of at least 8 inches (approx. 20 cm) between the
radiation source and a person's body (not
including limbs such as hands, wrists, feet and
legs).
GWARNING
Modifications to electronic components, their software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
If you make any changes to the vehicle elec-
tronics, the general operating permit is ren-
dered invalid.
Function restrictions
For safety reasons, some functions are restric-
ted or unavailable while the vehicle is in motion.
You will notice this, for example, because either
you will not be able to select certain menu items
or a message will appear to this effect.
Function restrictions287
Multimedia system
Z

Operating system
Overview
General notes
!Do not use the space in front of the display
for storage. Objects placed here could dam-
age the display or impair its function. Avoid
any direct contact with the display surface.
Pressure on the display surface may result in
impairments to the display, which could be
irreversible.
Wearing polarized sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con-
trolled switch-off feature. The brightness is
automatically reduced if the temperature is too
high. The display may temporarily switch off
completely.
Cleaning instructions
!Do not touch the display. The display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use a mild cleaning agent
and a soft, lint-free cloth.
The display must be switched off and have
cooled down before you start cleaning. Do not
apply pressure to the display surface when
cleaning it, as this could cause irreversible dam-
age to the display.
Switching the multimedia system
on/off
XPress the qcontrol knob.
Adjusting the volume
XTurn the qcontrol knob.
The volume is adjusted:
Rfor the currently selected media source
Rduring traffic or navigation announcements
Rin hands-free mode during a phone call
Switching the sound on or off
XPress the 8button on the control panel.
If the audio output is switched off, the status
line will show the 8symbol. If you switch the media source or set the volume, the sound
is automatically switched on.
iNavigation announcements will be heard
even if the sound is muted.
Functions
The multimedia system has the following func-
tions:
RRadio mode
RMedia mode with media search
RSound systems
RNavigation system
COMAND: navigation via the hard drive
Audio 20: navigation via SD card
RCommunication functions
RSIRIUS Weather (COMAND)
RVehicle functions with system settings
RFavorites functions
Controller
The controller in the center console lets you:
Rselect menu items on the display
Renter characters
Rselect a destination on the map
Rsave entries
The controller can be:
Rturned 3
Rslid left or right 1
Rslid forwards or back 4
Rslid diagonally2
Rpressed briefly or pressed and held 7
Back button
You can use the%button to exit a menu or to
call up the basic display of the current operating
mode.
XTo exit the menu: briefly press the%
button.
The multimedia system changes to the next
higher menu level in the current operating
mode.
XTo call up the basic display: press the%
button for longer than two seconds.
The multimedia system changes to the basic
display of the current operating mode.
288Operating system
Multimedia system