2010 MERCEDES-BENZ GL engine

iYou cannot shift with the steering wheel
gearshift control when the automatic
transmission is in park position P, neutral
position N, or reverse gear R.
Limiting gear range GWarning!
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result in drive wheel slip and reduced vehicle
control. Your vehicle’s ABS will not prevent
this type of loss of control.
XBriefly pull left gearshift control :.
The automatic transmission will shift into
the next lower gear as permitted by the
shift program. This action simultaneously
limits the gear range of the automatic
transmission.
i To avoid overrevving the engine when
downshifting, the automatic transmission
will not shift into a lower gear if the engine’s
maximum speed would be exceeded.
Extending gear range
XBriefly pull right gearshift control ;.
The automatic transmission will shift into
the next higher gear as permitted by the
shift program. This action simultaneously
extends the gear range of the automatic
transmission.
i If you press on the accelerator pedal
when the engine has reached the
revolution limit of the current gear range,
the automatic transmission will upshift
beyond any gear range limit selected.
Canceling gear range limit
XPull and hold right gearshift control ; until
the gear range indicator disappears from
the multifunction display.
The automatic transmission will shift from
the current gear range directly into drive
position D.Shifting into optimal gear range XPull and hold left gearshift control :.
The automatic transmission will select the
gear range suited for optimal acceleration
and deceleration automatically. This will
involve shifting down one or more gears.
Emergency operation (limp-home
mode)
If vehicle acceleration becomes less
responsive or sluggish or the automatic
transmission no longer shifts, the automatic
transmission is most likely operating in limp-
home (emergency operation) mode. In this
mode only second gear and reverse gear R
can be selected.
XStop the vehicle in a safe location.XShift the automatic transmission into park
position P.XTurn off the engine.XWait at least 10 seconds before restarting.XRestart the engine.XShift the automatic transmission into drive
position D (for second gear) or reverse gear
R .XHave the automatic transmission checked
at an authorized Mercedes-Benz Center as
soon as possible.
Transfer case
The vehicle is equipped with all-wheel drive
(4MATIC). Both the front and rear axles are
powered at all times when the vehicle is being
operated.
! Only conduct operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system or the transfer case which is not
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covered by the Mercedes-Benz Limited
Warranty.
! Because the ESP ®
operates
automatically, the engine and ignition must
be shut off (SmartKey in starter switch
position 0 or 1 or KEYLESS-GO start/stop
button in position 0 or 1) when the parking
brake is being tested on a brake test
dynamometer. Such testing should be no
longer than 10 seconds.
Active braking action through the ESP ®
may otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
LOW RANGE mode
The LOW RANGE mode is available on
vehicles with enhanced off-road package.
In the following situations you should switch
to the LOW RANGE mode:
R during off-road driving
R before driving through water
R when towing up or down on steep gradients
With LOW RANGE selected, the engine’s
power delivery and the shifting behavior of
the automatic transmission are adjusted.
Furthermore, the ABS, the ESP ®
, and the
4-ETS functions especially adapted to off-
road travel are activated.
For more information on off-road driving, see
“Off-road driving” ( Y page 262).
For information on driving safety systems
during LOW RANGE mode, see “Driving safety
systems” ( Y page 61).
Gear ranges
There are two possible settings.
HIGH
RANGERoad position for all normal
driving situations.
(LOW RANGE mode off)LOW
RANGEOff-road position for
traveling on rough terrain.
(LOW RANGE mode on)
Also use the off-road
position when driving on-
road on steep gradients,
especially when towing a
trailer.
LOW RANGE acts by raising
the engine’s gear ratio. The
vehicle travels at roughly
third the speed compared to
when in HIGH RANGE
position, leading to an
increase in the engine’s
drive power.GWarning!
Always wait until the procedure of shifting
from HIGH RANGE to LOW RANGE – and from
LOW RANGE to HIGH RANGE – has been
entirely completed. During this procedure do
not turn off the engine or shift the automatic
transmission into another gear.
If you do not wait until the shifting procedure
has been entirely completed then it might not
be correctly performed. The transfer case
might be in neutral, thus interrupting the
transfer of power between the engine and the
drive axle.
The vehicle is then freely movable, even if a
gear has been selected, and could
unintentionally be set into motion –
particularly on up – or downhill grades. This
could lead to an accident and cause injury to
yourself and others.
Please observe related messages appearing
in the multifunction display.
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Switching LOW RANGE mode
Switching LOW RANGE mode on
(switching from HIGH RANGE to LOW
RANGE)
! The shifting procedure can only be
performed when the following conditions
are met:
RThe engine is running.
RThe automatic transmission is in neutral
position N.
RThe vehicle speed does not exceed
25 mph (40 km/h).
iThere is no reset to HIGH after the ignition
has been switched off.
XPress LOW RANGE switch :.
Indicator lamp ; flashes.
If the system senses that all conditions are
met, it will switch from HIGH RANGE to
LOW RANGE. A chime sounds and LOW
RANGE indicator = appears in the
multifunction display.
Indicator lamp ; on LOW RANGE
switch : comes on continuously,
indicating that the LOW RANGE mode has
been activated.
iYou can cancel the procedure by pressing
the LOW RANGE switch again while the
indicator lamp is flashing.
Switching LOW RANGE mode off
(switching from LOW RANGE to HIGH
RANGE)
! The shifting procedure can only be
performed when the following conditions
are met:
RThe engine is running.
RThe automatic transmission is in neutral
position N.
RThe vehicle speed does not exceed
43 mph (70 km/h).
iThere is no reset to LOW after the ignition
has been switched off.
XPress LOW RANGE switch :.
Indicator lamp ; flashes.
If the system senses that all conditions are
met, it will switch from LOW RANGE to
HIGH RANGE. A chime sounds and LOW
RANGE indicator = disappears from the
multifunction display.
Indicator lamp ; on LOW RANGE
switch : goes out, indicating that the LOW
RANGE mode has been deactivated.
iYou can cancel the procedure by pressing
the LOW RANGE switch again while the
indicator lamp is flashing.
For messages in the multifunction display,
see the “Practical hints” section
(Y page 303).
Differential locks
Vehicles with enhanced off-road package are
equipped with automatic locks for the center
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and rear axle differential to improve vehicle
traction.
The center differential compensates for
differences in wheel rotation between the
front and rear axle.
The rear axle differential compensates
differences between the rear wheels.
i At the front axles, the 4-ETS system
compensates for any traction problems.
For more information on off-road driving, see
“Off-road driving” ( Y page 262).
A few words about differentials and
differential locks
When a vehicle negotiates a turn, wheels on
the outside of the curve must travel farther
and rotate faster than the inside wheels. The
differential, the operation of a set of gears
that allows the powered wheels in a vehicle
to turn at different speeds, makes this
essential function possible.
The drawback is that the differential also
sends most of the engine’s power to the
wheel with the least load or strain on it. For
example, if one of a vehicle’s powered wheels
sits on a patch of snow and spins because
there is no traction, all of the engine’s power
will go to that wheel because the power will
take the path of least resistance. Meanwhile,
the opposite wheel, sitting on dry pavement
where it could get enough grip to start the
vehicle moving, sits idle because it receives
no power.
The 4-ETS addresses this problem and
provides for good control and steering ability
by automatically slowing the slipping wheel
and thus increasing the power to the other
non-slipping drive wheels to get the vehicle
moving. The ESP ®
and the 4-ETS in this
vehicle feature such intelligent limited-slip
differential technology, ideally suited for on-
road and light off-road driving. Transfer case
position LOW (Y page 120) also enhances off-
road driving capabilities.
More extreme off-road conditions may call for
another solution, engaging a differential lock
or preventing the differential from operating
altogether. This vehicle comes with two
differential locks: transfer case (center) and
rear. Each can be engaged simply by
operating the rotary switch located on the
center console ( Y page 123). When the
transfer case (center) differential is locked,
the combined (or average) speed of the front
wheels is identical to the combined rear
wheel speed. When the rear differential is
locked, both rear wheels turn at the same
speed, independent of the individual torque.
Please be aware that engaging the differential
locks will significantly reduce the steering
ability of the vehicle.
For your safety and the safety of others and
to prevent damage to the vehicle, the
differential locks must not be engaged when
driving on paved roads. It is important to
understand that during on-road/paved
driving, differentials are absolutely necessary
for providing the essential control and
steering ability of the vehicle. The differential
locks, therefore, must not be engaged when
driving on paved roads and should only be
used to the extent necessary to negotiate off-
road conditions which cannot be handled by
the systems (the 4-ETS, the ESP ®
, and the
transfer case in LOW RANGE mode) this
vehicle comes equipped with.
Switching differential locks
! If the differential locks are engaged,
accelerate gently when setting the vehicle
in motion.
Only operate the vehicle on a single axle
dynamometer if the axle not being driven is
jacked up or the associated propeller shaft
is disconnected.
Otherwise the transmission could be
damaged.
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You can select between three locking modes.
Rotary switch for differential locks
:Rotatable outer adjustment ring with
indicator lamp
2AUTO mode: center differential is
automatically locked
3Center differential is completely locked4Center and rear axle differential are
completely locked
AUTO mode
The AUTO mode is adequate for most driving
situations since the center differential is
locked and released as required.
iAt speeds up to 19 mph (30 km/h), it is
possible to manually lock the differential
locks for driving on rough terrain.
XStart the engine.
The center differential lock is in AUTO
mode. The indicator lamp on adjustment
ring : above symbol à is on.
A message indicating that the center
differential lock is in AUTO mode appears in
the multifunction display when the off-road
menu is selected. For selecting the off-road
menu, see the “Controls in detail” section
(Y page 131).
Center and rear axle differential locksGWarning!
Never drive on a paved surface with the center
and rear axle differential locks manually
engaged. Ability to steer the vehicle is greatly
reduced when the differential locks are
manually engaged, increasing the risk of an
accident.
For safety reasons, the locks are
automatically released at a vehicle speed
above 31 mph (50 km/h). Nevertheless, you
should only manually lock the differential if
absolutely necessary because engaged locks
will restrict the vehicle drivetrain while
cornering and cause the vehicle to chatter.
This could cause you to lose control of the
vehicle and cause an accident.
! The differential locks must not be
engaged manually when towing the vehicle
or spinning the wheels.
The differential locks should only be engaged
manually if traction is insufficient in AUTO
mode.
The differential locks can be engaged in the
sequence 3, 4 (Y page 123) up to a speed
of 19 mph (30 km/h).
Engage differential locks:
Rfor off-road driving
Rfor driving through water
Rwhen driving on deep snow and icy or
fouled surfaces
XStart the engine.XTo select the desired locking mode, rotate
adjustment ring : to position 3 or 4
(Y page 123).
The indicator lamp on adjustment ring :
at the respective symbol comes on.
A message indicating that the respective
differential is completely locked appears in
the multifunction display when the off-road
menu is selected. For selecting the off-road
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iThe instrument cluster illumination is
dimmed or brightened automatically to suit
ambient light conditions.
The instrument cluster illumination will also
be adjusted automatically when you switch
on the vehicle’s exterior lamps.
iWith the exterior lighting switched on, the
brightness of the switches in the center
console will also be adjusted when using
button : or =.
Resetting trip odometer
XMake sure you are viewing the standard
display (Y page 128) in the multifunction
display.
XPress and hold the reset button in the
instrument cluster (Y page 124) until the
trip odometer is reset.
Tachometer
The red marking on the tachometer
(Y page 29) denotes excessive engine speed.
! Avoid driving at excessive engine speeds,
as it may result in serious engine damage
that is not covered by the Mercedes-Benz
Limited Warranty.
To help protect the engine, the fuel supply is
interrupted if the engine is operated within
the red marking.
Control system
Introduction
The control system is activated as soon as the
starter switch is in position 1 (Y page 80).
The control system enables you to call up
information about your vehicle and to change
vehicle settings.
For example, you can use the control system
to find out when your vehicle is next due for
maintenance service, to set the language for
messages in the instrument cluster display,
and much more.
GWarning!
A driver’s attention to the road and traffic
conditions must always be his/her primary
focus when driving.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions permit
it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximately
14 m) every second.
The control system relays information to the
multifunction display.
Multifunction steering wheel
The displays in the multifunction display and
the settings in the control system are
controlled by using the buttons on the
multifunction steering wheel.
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Function:Standard display menu
(Y page 128)
;Audio/DVD menu (Y page 129)=Navigation menu (Y page 130)?Off-road menu (Y page 131)ADistronic menu (Y page 131)BVehicle status message
memory12 menu (Y page 131)
CSettings menu (Y page 132)DVehicle configuration menu
(Y page 140)
ETrip computer menu (Y page 141)FTelephone menu (Y page 142)
Standard display menu
Standard display
In the standard display, trip odometer : and
main odometer ; appear in the
multifunction display.
XIf you see another display, press button
V or U repeatedly until the standard
display appears.
XPress button & or * to select the
functions in the Standard display menu.
The following functions are available:
RRestarting the tire pressure loss warning
system (Y page 238) (Canada only)
RChecking tire inflation pressure with the
Advanced TPMS (Y page 239) (USA only)
RChecking coolant temperature
(Y page 128)
RCalling up digital speedometer or outside
temperature (Y page 129)
RCalling up maintenance service indicator
display (Y page 274)
Checking coolant temperature
GWarning!
Driving when your engine is overheated can
cause some fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
XPress button & or * repeatedly until
the coolant temperature appears in the
multifunction display.
During severe operating conditions, e.g. stop-
and-go traffic, the coolant temperature may
rise close to 248‡ (120†).
! Excessive coolant temperature triggers a
warning in the multifunction display.
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The engine should not be operated with a
coolant temperature above 248‡
(120†). Doing so may cause serious
engine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Calling up digital speedometer or
outside temperature
You can select whether the digital
speedometer or the outside temperature
appears in the multifunction display
(Y page 135).
GWarning!
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
XPress button & or * repeatedly until
the digital speedometer or the outside
temperature appears in the multifunction
display.
Digital speedometer
Outside temperature
Audio/DVD menu
The functions in the Audio/DVD menu
operate the audio or video equipment which
you have currently switched on.
The following functions are available:
RSelecting radio station (Y page 129)
ROperating audio devices/audio media
(Y page 130)
ROperating video DVD (Y page 130)
If no audio equipment is currently switched
on, the message AUDIO Off appears in the
multifunction display.
Selecting radio station
The HD Radio with SIRIUS Satellite Radio is
treated as a radio application.
For more information on HD Radio with
SIRIUS Satellite Radio, refer to separate
COMAND system operating instructions.
Additional optional satellite radio equipment
and a subscription to a satellite radio service
provider are required for satellite radio
operation. Contact an authorized Mercedes-
Benz Center for details and availability for
your vehicle.
XSwitch on the COMAND system and select
radio. Refer to separate COMAND system
operating instructions.
XPress button V or U repeatedly until
the currently tuned station appears in the
multifunction display.
Example illustration
:Wave band setting and stored memory
position
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