wheel MERCEDES-BENZ GL 2013 Owners Manual

longer has to be pressed as far to
accelerate.
R The sporty steering curve is selected,
e.g. greater force is required when
steering.
i You cannot selec tthe SPORT program if
LOW RANGE has been selected. The
Drive Program SPORT Not in LOW RANGE message then appears in the
multifunction display.
Snow program Select the snow program for driving in snow
with or without snow chains.
X Selector wheel 0002 engaged:
briefly press
selector wheel 0002.
Selector wheel 0002extends.
X To select: turn selector wheel 0002until
indicator lamp 0003comes on.
Snow indicator 0021appears in the
multifunction display. R
Highway level is set.
R ADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving
conditions.
R 4ETS and the differential lock are
adapted for driving on snow-covered
roads.
R The automatic transmission selects the
automatic drive program for a
comfortable driving style that provides
for optimum fuel consumption.
R The soft accelerator pedal curve is
selected, e.g. the accelerator pedal must
be pressed significantly further to
accelerate.
R The optimum gear for pulling away is
engaged.
Trailer program Select the trailer program when towing a
trailer. Driving systems
249Driving and parking Z

X
Selector wheel 0002 engaged:
briefly press
selector wheel 0002.
Selector wheel 0002extends.
X To select: turn selector wheel 0002until
indicator lamp 0003comes on.
Trailer indicator 0021appears in the
multifunction display.
R Highway level is set.
R ADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving
conditions.
R The automatic transmission selects the
automatic drive program for a
comfortable driving style that provides
for optimum fuel consumption, changing
gear at optimum points.
R While pulling away, the differential locks
are engaged. Off-road driving systems
4MATIC (permanent four-wheel drive) If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, weather and traffic
conditions. 4MATIC is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
! Never tow the vehicle with one axle
raised. This may damage the transfer case.
Damage of this sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remain either on the ground
or be fully raised. Observe the instructions
for towing the vehicle with all wheels in full
contact with the ground.
! A function or performance test should
only be carried out on atwo-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.
4MATIC ensures that all four wheels are
permanently driven. Together with ESP ®
and
4ETS, it improves the traction of your vehicle
whenever a drive wheel spins due to
insufficien tgrip.
i In 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"
(Y page 191).
DSR (Downhill Spee dRegulation) Important safety notes
DSR assists you when driving downhill. It
keeps the speed of travel at the speed set on
the on-board computer. The steeper the
downhill gradient, the greater the DSR
braking 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 set speed when it is active
and the automatic transmission is in the D,
R or Nposition. By accelerating or braking,
you can always drive at a higher or a lower
speed than that set on the on-board
computer.
Further information about "Driving off-road"
(Y page 191).
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 braking 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, depending on road 250
Driving systemsDriving and parking

surface and tire conditions. Select a set
speed suitable for the prevailing conditions
and when necessary, apply the brakes
manually. G
WARNING
If the speed driven and the set speed deviate
and you activate DSR on a slippery road
surface, the wheels may lose traction.Ift he
wheels lose traction. the vehicle can no longer
be steered. There is an increased danger of
skidding and accidents.
Never activate DSR on slippery road surfaces.
Activating DSR G
WARNING
If you drive faster than the set speed and
activate DSR, the vehicle will decelerate on
downhill gradients. If you do not know the set
speed, the vehicle could decelerate
unexpectedly. There is a risk of an accident.
Decelerate the vehicle to the set speed before
activating DSR. If you do not know what the
stored set speed is, store the desired set
speed again. Example: vehicles with the ON&OFFROAD package
0002 DSR button
0003 DSR indicator lamp
X Press button 0002.
Indicator lamp 0003lights up.
The 0001 DSR symbol appears in the
multifunction 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
0001
DSR symbol appears in the
multifunction display with the Max. Speed 25 mph message (Canada:
40 km/h ).
i You cannot activate DSR if the SPORT on-
road program is activated. The 0001DSR
symbol and the Not in Drive Program SPORT message then appearint
he
multifunction display.
Deactivating DSR
X Press button 0002.
Indicator lamp 0003goes out.
The 0001 DSR symbol appears in the
multifunction display with the Off message.
DSR switches off automatically if you drive
faster than 28 mph (Canada: 45 km/h). The
0001 DSR symbol appears in the
multifunction display with the Off message.
The status indicator in the multifunction
display goes out. You also hear a warning. On
vehicles with the ON&OFFROAD package, if
you select a different on-road/off-road
program, DSR is also deactivated.
Changing the set speed Driving systems
251Driving and parking Z

X
To increase or decrease in 1 mph
increments (Canada: 1 km/h
increments): briefly press the cruise
control lever up 0002for a highe rset speed
or down 0003for a lower set speed.
The set speed appears in the multifunction
display with the 0001DSR symbol. It is also
displayed in status indicator 0021.
When DSR is activated, you can change the
set speed to a value between 1mph and
11 mph (Canada: between 2 km/h and
18 km/h).
i The DSR set speed is always changed in
1 mph increments (Canada: 1 km/h
increments). This is regardless of whether
you press the cruise control lever to or
beyond the pressure point.
Off-road program (vehicles without the
ON&OFFROAD package) 0002
Off-road program button
0003 Off-road program indicator lamp
X To switch on: press button0002.
Indicator lamp 0003lights up. The 0006off-
road indicator appears in the multifunction
display.
X To switch off: press button0002.
Indicator lamp 0003and the 0006off-road
indicator go out in the multifunction
display.
The off-road program assists you in driving
off-road. The engine’s performance
characteristics and the gearshifting characteristics of the automatic transmission
are adapted for this purpose. ABS, ESP
®
and
4ET Sprograms especially adapted to off-road
driving are activated .Agentle accelerator
pedal curve is also selected, i.e. the
accelerator pedal must be depressed much
further in order to accelerate.
Do not use the off-road program on roads that
are snow-covered or icy or if you have
mounted snow chains on your vehicle.
For information about driving off-road, see
(Y page 191).
Off-road programs (vehicles with the
ON&OFFROAD package) General notes
The off-road programs assist you in driving
off-road. The engine’s performance
characteristics and the gearshifting
characteristics of the automatic transmission
are adapted for this purpose. ABS, ESP
®
and
4ETS programs especially adapted to off-road
driving are activated. An accelerator pedal
curve suitable for the terrain is selected, i.e.
the accelerator pedal must be depressed
further to accelerate.
Do not use the off-road programs on roads
that are snow-covered or icy or if you have
mounted snow chains on your vehicle.
For information on driving off-road, see
(Y page 191).
The following program messages are shown
in the multifunction display until the
applicable vehicle level is set. Up to off-road
level 2, you can hide the program messages
using the 0007or the 000Bbutton on the
multifunction steering wheel. 252
Driving systemsDriving and parking

Off-road program 1
X
Selector wheel 0002 engaged:
briefly press
selector wheel 0002.
Selector wheel 0002extends.
X To select: turn selector wheel 0002until
indicator lamp 0003comes on.
Off-road indicator 0021appears in the
multifunction display.
Off-road level 1 is set to +1.2 in (+30 mm)
above the highway level.
If you drive at a speed above 70 mph
(110 km/h), off-road program 1 switches to
AUTO program.
Select off-road program 1 for gentle off-road
terrain, e.g. for gravel or sand surfaces or
tracks. The engine's torque is restricted to a
limited degree and the drive wheels can spin.
The spinning wheels produce acutting effect
for better traction.
You can only activate off-road program 1
when driving at speeds below 60 mph
(100 km/h). The Drive Program OFFROAD 1 Max Speed 60 mph (100 km/h ) message
appears in the multifunction display. Off-road program 2
X
Selector wheel 0002 engaged:
briefly press
selector wheel 0002.
Selecto rwheel 0002extends.
X To select: turn selector wheel 0002until
indicator lamp 0003comes on.
Off-road indicator 0021appears in the
multifunction display.
R Off-road level 1 is set to +2.4 in
(+60 mm) above the highway level.
R DSR is switched on.
R The differential lock is closed.
Off-road program 2automatically switches to
off-road program 1 if you drive faster than
30 mph (45 km/h).
Select off-road program 2 for rough terrain,
e.g. for steep and/o rrough terrain or driving
on rocky terrain.
i Your vehicle has an automatically
activated differential lock for the transfer
case. It controls the balance between the
front and rear axles. Driving systems
253Driving and parking Z

The differential lock improves the vehicle’s
traction. 4ETS (Y
page 71) controls the
balance between both wheels on an axle.
You can only activate off-road program 2
when driving at speeds below 25 mph
(40 km/h).
LOW RANGE off-road gear (vehicles
with the ON&OFFROAD package) Important safety notes
G
WARNING
If you select the LOW RANGE off-road gear on
a slippery road surface, the wheels could lose
traction:
R if you remove your foot from the
accelerator pedal when driving
R if off road ABS intervenes when braking
If the wheels lose traction. the vehicle can no
longer be steered. There is an increased
danger of skidding and accidents.
Never select the LOW RANGE off-road gear
when driving on slippery road surfaces. G
WARNING
If you do not wait for the transfer case gear
change process to complete, the transfer
case could remain in the neutral position. The
power transmission to the driven wheels is
then interrupted. There is a danger of the
vehicle rolling away unintentionally. There is
a risk of an accident.
Wait until the transfer case shift process is
completed.
Do not turn off the engine while changing gear
and do not shift the automatic transmission
to another position. General notes 0002
LOW RANGE off-road gear button
0003 LOW RANGE off-road gear indicator lamp HIGH RANGE
Position for all normal on-
road driving conditions
LOW RANGE
Off-road position for
driving off-road and
fording
The transmission ratio
between the engine and
wheels is only
approximately one third of
that in the HIGH RANGE
road position. Drive torque
is thus proportionately
higher.
Do not use LOW RANGE:
R
on slippery road
surfaces, e.g. in the case
of slush
R on snow or ice-covered
roads
R if you have mounted
snow chains to your
vehicle The LOW RANGE off-road gear assists you in
driving off-road and when fording. When LOW
RANGE is engaged, the engine’s performance
characteristics and the gearshifting
characteristics of the automatic transmission
are adapted for this purpose.254
Driving systemsDriving and parking

Messages in the multifunction display
If a gearc
hange process has not been successful, the following messages may be displayed
in the multifunction display: Display messages Possible causes/consequences and
0001 Solutions
LOW RANGE Max.
Speed 40 km/h You have been driving faster than 40 km/h. Additionally, the
indicator lamp on the button in the center console blinks.
X
Drive more slowly to carry out the gear change process. LOW RANGE Shift to
Position N Briefly The transmission is in position
Dand you are driving at below
40 km/h.
X Shift the transmission to Nto complete the gear change
process. LOW RANGE Shifting
Canceled Please
Reactivate The gear change process was not carried out.
X
Ensure that all gear change conditions are fulfilled and carry out
the gear change process again. LOW RANGE Stop
Apply Parking Brake Aw
arning tone also sounds. The gear change proces shas no tbeen
completed. LOW RANGE is in the neutral position .There is no
connection between the engine and the drive wheels.
! Do not drive any further. You could otherwise damage the
vehicle's drive train.
X Stop the vehicle. Take into account the road and traffic
conditions when doing this.
X Depress the electric parking brake (Y page 184).
X Carry out the gear change process again.
If the gear change process has been carried out, the LOW RANGE
Stop Apply Parking Brake message disappears.
ON&OFFROAD menu in the COMAND
display (vehicles with the
ON&OFFROAD package) You can display some driving systems, driving
programs and additional information in the
COMAND display.
X Make sure that the SmartKey is in position
2in the ignition lock.
X Make sure that COMAND is activated, see
the separate COMAND operating
instructions.
X Press function button 0002.
The corresponding displays appearint he
COMAND display:
R level control
R steering angle
R vehicle's angle of inclination 256
Driving systemsDriving and parking

of the towing vehicle, as the latter is
equipped with an anti-lock brake system.
Doing so will result in a loss of function of
the brake systems of both the vehicle and
the trailer.
X Make sure that the automatic transmission
is set to position P.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Vehicles with the AIRMATIC package:
select highway level.
X Vehicles with ADS: set ADS toAUTOor
COMF.
X Switch off the engine.
X Close all doors and the tailgate.
X Couple up the trailer.
X Establish all electrical connections.
X Check that the trailer lighting system is
working.
i Vehicles with the AIRMATIC package:
with a trailer attached, the vehicle will
always remain at highway level. When
coupling up a trailer, please observe the
following:
R Unless highway level has been set
manually, the vehicle is automatically
lowered to highway level. This is the case
if a speed of 5mph(8km/h) is reached.
R High-speed level is not available.
These restrictions apply to all accessories
powered through a connectio nto 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 Canadia nprovinces
require by law:
R Safety 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
coupling, not to the bumper or the axle. Leave enough play in the chains to make
tight cornering possible.
R As eparate brake system for certain types
of trailer.
R As afety switch for braked trailers. Check
the specific legal requirements applicable
to your state.
If the trailer detaches from the towing
vehicle, the safety switch applies the
trailer's brakes. Towing
atrailer
There are numerous legal requirements
concerning the towing of a trailer, e.g .speed
restrictions. Make sure that your vehicle/
trailer combination complies with the local
requirements not only in your area of
residence but also at any location to which
you are traveling. The police and local
authorities can provide reliable information.
Please observe the following when towing a
trailer:
R To acquaint yourself with driving with a
trailer and with the resulting changes to
handling, you should practice cornering,
stopping and backing up in a traffic-free
location.
R Before driving, check:
-Trailer tow hitch
- Safety switch for braked trailers
- Safety chains
- Electrical connections
- Lights
- the wheels
R Adjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
R If the trailer features electronically
controlled brakes, pull away the vehicle/
trailer combination carefully, manually
brake using the brake controller, and check
the brakes for correct function. Towing
atrailer
261Driving an d parking Z

R
Secure any objects on the traile rto prevent
the cargo from slipping when the vehicle is
in motion.
R If you couple up a trailer, regularly check
the cargo for secure fastening and make
sure that the trailer lamps and (if
applicable) the trailer brakes are
functioning correctly.
R Bear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
R If possible, avoid abrupt braking. Depress
the brake pedal moderately at first, so that
the trailer can activate its own brakes. Then
increase the pressure on the brake pedal.
R If the automatic transmission continues to
shift back and forth between two gears
when driving up or downhill, restrict the
shift range. Select shift range 4, 3, 2,or1.
Al ower gear and lower speed reduce the
risk of engine failure.
R When driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system.
Coolant heat can additionally be dissipated
by opening the windows and by setting the
blower fan and the interior temperature to
maximum.
R When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination. Due to the length of your vehicle/trailer
combination, you will have to travel an
additional distance beyond the vehicle you
are overtaking before returning to the
previous lane. Decoupling
atrailer G
WARNING
If you uncouple a trailer with the overrun
brake engaged, you could trap your hand
between the vehicle and the trailer drawbar.
There is a risk of injury.
Do not uncouple a trailer if the overru nbrake
is engaged. G
WARNING
Vehicles with level control:
The vehicle is lowered as soon as you
disconnect the trailer cable. This could result
in yourl imbs or those of other people that are
betwee nthe vehicle body and tires or
underneath the vehicle being trapped. There
is a risk of injury.
Make sure that nobody is in the immediate
vicinity of the wheel housings or under the
vehicle when you disconnectt he trailer cable.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the
rebounding of the overrun brake.
X Make sure that the automatic transmission
is set to position P.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Close all doors and the tailgate.
X Apply the trailer's parking brake.
X Detach the trailer cable and decouple the
trailer.
X Switch off the engine. 262
Towing
atrailerDriving an d parking

vehicle and do not stand near the vehicle until
the engine has cooled down.
! Adisplay 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 coolan ttemperature gauge is in the
instrument cluster on the right-hand side
(Y page 33).
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protec tthe
engine when the red band is reached. Outside temperature display
You should pay special attention to road
conditions when temperatures are around
freezing point.
The outside temperature display is in the
multifunction display (Y page 269).
Changes in the outside temperature are
displayed after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 195):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 198):One or two segments in the set speed
range light up.
R DISTRONIC PLUS detectsav ehicle in front:
The segments between the speed of the
vehicle in fron tand the stored speed light
up. Operating the on-board computer
Overview 0002
Multifunctio ndisplay
0003 Switches on the Voice Control System;
see the separate operating instructions
0021 Right control panel
0020 Left control panel
001E Back button
X To activat ethe 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. 268
Displays and operationOn-board computer and displays