2016 MERCEDES-BENZ GL-Class stop start

so will result in a loss of function of the
brake systems of both the vehicle and the
trailer.
XShift the transmission to positionP.
XApply the vehicle's electric parking brake.
XStart the engine.
XVehicles with the AIRMATIC package:
select highway level.
XVehicles with ADS:set ADS toAUTOor
COMF .
XSwitch off the engine.
XClose the doors and tailgate.
XCouple up the trailer.
XEstablish the electrical connection
between the vehicle and the trailer.
XCheck that the trailer lighting system is
working.
iVehicles with the AIRMATIC package:
with a trailer attached, the vehicle will
always remain at highway level. When cou-
pling up a trailer, please observe the fol-
lowing:
RUnless highway level has been set man-
ually, the vehicle is automatically low-
ered to highway level. This is the case if a
speed of 5 mph (8 km/h) is reached.
RHigh-speed level is not available.
These restrictions apply to all accessories
powered through a connection to the trailer
power socket of your vehicle, e.g. a bicycle
carrier.
Observe the maximum permissible trailer
dimensions (width and length).
Most U.S. states and all Canadian provinces
require by law:
RSafety chains between the towing vehicle
and the trailer. The chains should be cross-
wound under the trailer drawbar. They must
be fastened to the vehicle's trailer cou-
pling, not to the bumper or the axle. Leave enough play in the chains to make
tight cornering possible.
RA separate brake system for certain types
of trailer.
RSafety switch for braked trailers. Check the
specific legal requirements applicable to
your state.
If the trailer becomes detached from the
towing vehicle, the safety switch applies
the trailer brakes.
Towing a trailer
There are numerous legal requirements con-
cerning the towing of a trailer, e.g. speed
restrictions. Make sure that your car/trailer
combination complies with the local regula-
tions:
Rin your place of residence
Rin the location to which you are driving
The police and local authorities can provide
reliable information.
Observe the following when towing a trailer:
RTo gain driving experience and to become
accustomed to the new handling charac-
teristics, you should practice the following
in a traffic-free location:
-cornering
-stopping
-backing up
RBefore driving, check:
-trailer tow hitch
-safety switch for braked trailers
-safety chains
-electrical connections
-lights
-wheels
RAdjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
RIf the trailer has electronically controlled
brakes, pull away carefully. Brake manually
Towing a trailer267
Driving and parking
Z

Left control panel
=
;RCalls up the menu and menu bar
9
:Press briefly:
RScrolls in lists
RSelects a submenu or function
RIn theAudiomenu: selects a
stored station, an audio track or
a video scene
RIn the Tel(Telephone) menu:
switches to the phone book and
selects a name or telephone
number
9
:Press and hold:
RIn the Audiomenu: selects the
previous/next station or selects
an audio track or a video scene
using rapid scrolling
RIn the Tel(Telephone) menu:
starts rapid scrolling if the phone
book is open
aRConfirms the selection or display
message
RIn the Tel(Telephone) menu:
switches to the telephone book
and starts dialing the selected
number
RIn the Audiomenu: stops the
station search function at the
desired station
Right control panel
~RRejects or ends a call
RExits the telephone book/redial
memory
6RMakes or accepts a call
RSwitches to the redial memory
W
XRAdjusts the volume
8RMute
?RVehicles with Audio 20:
Switches on voice-operated con-
trol for navigation (see manufac-
turer's operating instructions)
RVehicles with COMAND:
Switches on the Voice Control
System (see the separate oper-
ating instructions)
Back button
%Press briefly:
RBack
RSwitches off the Voice Control
System (see the separate oper-
ating instructions)
RHides display messages or calls
up the last Trip
menu function
used
RExits the telephone book/redial
memory
%Press and hold:
RCalls up the standard display in
the Trip
menu
274Displays and operation
On-board computer and displays

Multifunction display
:Permanent display: outside temperature
or speed (
Ypage 283)
;Time
=Text field
?Menu bar
ADrive program (Ypage 174)
BTransmission position (Ypage 174)
XTo display menu bar?: press the=
or ; button on the steering wheel.
If you do not press the buttons any longer,
menu bar ?is faded out after a few sec-
onds.
Text field =shows the selected menu or
submenu as well as display messages.
iYou can set the time using the audio sys-
tem or COMAND (see the separate operat-
ing instructions).
The following messages may appear in the
multifunction display:
Z Gearshift recommendation when
shifting manually (
Ypage 178)
XjY Active Parking Assist
(
Ypage 227)
CRUISE
Cruise control (Ypage 202)
LOW
RANGE
LOW RANGE off-road gear
(
Ypage 259) _
Adaptive Highbeam Assist
(
Ypage 134)
¤ ECO start/stop function
(
Ypage 169)
ë HOLD function (
Ypage 217)
DSR
Downhill speed regulation
(
Ypage 257)
Menus and submenus
Menu overview
Press the =or; button on the steer-
ing wheel to call up the menu bar and select a
menu.
Operating the on-board computer
(
Ypage 273).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
RTripmenu (Ypage 275)
RNavimenu (navigation instructions)
(
Ypage 277)
RAudiomenu (Ypage 278)
RTelmenu (telephone) (Ypage 279)
RDriveAssistmenu (assistance)
(
Ypage 281)
RServmenu (Ypage 283)
RSett.menu (settings) (Ypage 283)
RON&OFFROADmenu (Ypage 287)
RAMGmenu (Mercedes-AMG vehicles)
(
Ypage 287)
Trip menu
Standard display
Menus and submenus275
On-board computer and displays
Z

to traffic conditions and operate the equip-
ment when the vehicle is stationary.
When telephoning, you must observe the
legal requirements for the country in which
you are currently driving.
XSwitch on the mobile phone (see the man-
ufacturer’s operating instructions).
XSwitch on COMAND (see the separate
operating instructions).
XEstablish a Bluetooth®connection to
COMAND, see the separate operating
instructions.
XPress the =or; button on the steer-
ing wheel to select the Tel
menu.
You will see one of the following display mes-
sages in the multifunction display:
RTelephone READYor the name of the net-
work provider: the mobile phone has found
a network and is ready to receive.
RTelephone No service: there is no net-
work available or the mobile phone is
searching for a network.
Accepting a call
XPress the 6button on the steering
wheel to accept an incoming call.
If someone calls you when you are in the Tel
menu, a display message appears in the mul-
tifunction display.
You can accept a call even if you are not in the
Tel
menu.
Rejecting or ending a call
You can end or reject a call even if you are not
in the Tel
menu.
XPress the ~button on the steering
wheel to reject or end a call.
Selecting an entry from the telephone
book
XPress the =or; button on the steer-
ing wheel to select the Tel
menu.
XPress the9,:ora button to
switch to the phone book.
XAuthorize access to the phone book on the
phone.
XPress the 9or: button to select the
desired name.
or
XTo start rapid scrolling: press and hold
the 9 or: button for longer than
one second.
Rapid scrolling stops when you release the
button or reach the end of the list.
XIf only one telephone number is stored
for a name: press the6ora button
to start dialing.
or
XIf there is more than one number for a
particular name: press the6ora
button to display the numbers.
XPress the 9or: button to select the
number you want to dial.
XPress the 6ora button to start dial-
ing.
or
XTo exit the telephone book: press the
~ or% button.
Redialing
The on-board computer saves the last names
or numbers dialed in the redial memory.
XPress the =or; button on the steer-
ing wheel to select the Tel
menu.
XPress the6button to switch to the
redial memory.
XPress the 9or: button to select the
desired name or number.
280Menus and submenus
On-board computer and displays

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
You can start the RACETIMER when the
engine is running or if the SmartKey is in posi-
tion 2in the ignition lock.
XPress the =or; button on the steer-
ing wheel to select the AMG
menu.
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 six-
teen laps. The 16th lap can only be com-
pleted 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
1 in the ignition lock. If you turn the key 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".
288Menus and submenus
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
PRE-SAFEFunctions
Currently Limited
SeeOperator'sMan‐
ual
Adaptive Brake Assis tor th ePRE-SAF E®Brake is temporarily inop-
erative .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 .
RMercedes-AMG vehicles: ESP®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 mes -
sage disappears.
Adaptive Brake Assis tor th ePRE-SAF E
®Brake is 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 189).
XRestart th eengine.
XMercedes-AMG vehicles: reactivat eES P®(Ypage 74).
PRE-SAFEFunctions
Limite dSee Opera‐
tor's Manual
Adaptive Brake Assis tor th ePRE-SAF E®Brake is malfunctioning.
BA SPLU Sor th edistanc ewarnin gfunction may also hav efailed.
XVisit aqualified specialist workshop .
298Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Radar Sensors
Dirty See Opera‐
tor's Manual
At leaston eof th efollowing drivin gsystems or drivin gsafet ysys-
tems is temporarily restricted or inoperative:
RPRE-SAF E®Brake
RActive Lan eKeepin gAssis t
RActive Blind Spot Assis t
If th erada rsensor system in fron tis dirty, Active Blind Spot Assis t
will no tperform acourse-correcting brak eapplication .
Possibl ecauses are:
Rth esensor sin th eradiato rtrim and/o rin th ebumpers are dirty
Rth efunction of th edrivin gsystem and/o rdrivin gsafet ysystem
is impaire ddue to heav yrain or snow.
A warnin gtone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears. Al ldrivin gsystems and drivin gsafet ysystems
are 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 189).
XSwitchof fth eengine.
XClean th esensor sin th efollowing location s (Ypage 380):
Rin theradiato rtrim
Rin th efron tbumper
Rin th erear bumper, particularl yin th emiddle of th erear
bumper
XRestart th eengine.
The display message disap
pears.
6
Restraintsys.mal‐
function Consul t
workshop
The restraintsystem is faulty.
The 6 warnin glamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in th eevent of an accident, may no tbe
triggered .
There is an increase dris kof injury.
XVisit aqualified specialist workshop .
Observ eth eadditional information on restrain tsystems
(
Ypage 44) .
Display messages299
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
?
CoolantToo Hot
Sto pVehicl eTur n
Engine Off
The coolan tis to ohot .
A warnin gtone also sounds.
GWARNIN G
Do notdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked into th eengin ecompartmen tto
catch fire.
Steam from th eoverheated engin ecan also caus eserious burn s
whic hcan occur jus tby openin gth ehood.
There is aris kof injury.
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).
XWait until th eengin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no t
blocked, 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 w24 8 ‡ (120†). Other -
wise ,th eengin ecould be damaged.
XPay attention to th ecoolan ttemperature display.
XIf th etemperature increase sagain ,visit aqualified specialist
workshop immediately.
Under normal operating condition sand wit hth especified coolan t
level, th ecoolan ttemperature may ris eto 24 8 ‡(120†).
#
SeeOperator' sMan‐
ual
The battery is no tbein gcharged.
A warnin gtone also sounds.
Possibl ecauses are:
Radefective alternato r
Ratorn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinue driving. The engin ecould otherwise overheat .
XPull overand stop th evehicl esafely and switch of fth eengine,
payin gattention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XConsult aqualified specialist workshop .
Display messages307
On-board computer and displays
Z