clock MERCEDES-BENZ GL 2012 User Guide

use a sponge and cold water to clean it. DEF
residues crystallize after time and
contaminate the affected surfaces.
! DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to
the fuel tank, this can lead to engine
damage.
i If you are adding between maintenance
intervals, add approximately 1 gallon (3.8 l)
of DEF to the DEF tank. One gallon (3.8 l)
of DEF is approximately 2 DEF refill bottles.
For further information on DEF, see:
( Y page 374).
The DEF filler neck is under the cargo
compartment floor.XSwitch off the ignition.XOpen the tailgate.XLift up the trunk floor ( Y page 314).XTurn DEF cap : counter-clockwise and
remove it.XTurn DEF filler cap ; counter-clockwise
and open it.
Filler cap ; is secured with a plastic strap.XUnscrew the covering cap from DEF refill
bottle =.XPlace DEF refill bottle = on the filler neck
as shown and screw on clockwise hand-
tight.
! Only screw on the DEF refill bottle hand-
tight. It could otherwise be damaged.
XPress DEF refill bottle = down.
The DEF tank is filled. This may take up to
one minute.
i If the DEF refill bottle is no longer pressed
down, the filling process stops and the
partially emptied bottle can be removed.
XRelease DEF refill bottle =.XTurn DEF refill bottle = counter-clockwise
and remove it.XPlace DEF filler cap ; on the filler neck and
turn it clockwise.Refueling165Driving and parkingZ

XInsert DEF cap : as shown and turn it
clockwise as far as it will go.XFold the cargo compartment floor down.XClose the tailgate.XDrive at a speed above 10 mph (16 km/h).
The Check Additive See Operator's
Manual message goes out after
approximately one minute.
i If the Check Additive See
Operator's Manual message remains
shown in the multifunction display, add an
additional bottle of DEF.
i Then, have the DEF supply checked at a
qualified specialist workshop and
completely refilled if necessary.
Parking
Important safety notes
GWARNING
Do not park this vehicle in areas where
combustible materials can come into contact
with the hot exhaust system. Do not park the
vehicle on dry grassland or harvested grain
fields. Combustible materials, such as grass,
hay or leaves could be ignited by the hot
exhaust system and cause a vehicle fire.
Unintended vehicle movement can cause
serious personal injury or damage to the
vehicle or the vehicle drivetrain. To reduce
such risks, always do the following before
turning off the engine and leaving the vehicle:
R keep your right foot on the brake pedal.
R engage the parking brake.
R shift the automatic transmission to park
position P.
R slowly release the brake pedal.
R when parked on an incline, always turn the
front wheels towards the road curb.
R turn the SmartKey in the ignition lock to
position 0 and remove the SmartKey from
the ignition lock, or press the KEYLESS-GO
Start/Stop button.
R take the SmartKey with you and lock the
vehicle when leaving.
Switching off the engine
Important safety notes
GWARNING
Do not turn off the engine before the vehicle
has come to a complete stop. With the engine
not running, there is no power assistance for
the brake and steering systems. In this case,
it is important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
GWARNING
Keep in mind that turning off the engine alone
only will shift the automatic transmission into
neutral position N automatically.
Always shift the automatic transmission into
park position P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
i If you cannot turn off the engine as
described here, see "Engine emergency
stop" ( Y page 335).
Vehicles with automatic transmission
XApply the parking brake firmly.XShift the transmission to position P.
Using the SmartKey
XTurn the SmartKey to position 0 in the
ignition lock and remove it.
The immobilizer is activated.
i If you turn off the engine with the
SmartKey and then remove it from the
ignition lock or open a front door, the
automatic transmission shifts to P
automatically.
166ParkingDriving and parking

Vehicles with extended Off-Road Pro
engineering package
Basic settings
The extent to which the vehicle is raised or
lowered depends on the basic setting
selected.
Select:
R Off-road level 3 for freeing the vehicle in
impassable terrain at low speeds only
R Off-road level 2 for driving on normal off-
road terrain
R Off-road level 1 for driving on easily
negotiable off-road terrain
R Highway/high-speed level for normal roads
The individual vehicle levels differ from
highway level as follows:
R +3.5 in (+ 90 mm) at off-road level 3
R +2.3 in (+ 60 mm) at off-road level 2
R +1.2 in (+ 30 mm) at off-road level 1
R +/–0 in (+/–0 mm) at the highway level
R –0.6 in (–15 mm) at the high-speed level
Off-road levels
GWARNING
Vehicle off-road level 3 is not intended for use
on paved roads. This vehicle level is intended
for clearing impracticable situations at low
speed exclusively. The vehicle has a very high
center of gravity in off-road level 3. This
increases the overturning hazard.
R Select off-road level 3 exclusively for
clearing impracticable situations at low
speed.
R Adapt your driving style to the modified
conditions.
R Do not exceed a speed of 12 mph
(20 km/h).
R Avoid extreme, quick steering movements.
R Keep in mind the vehicle's driving
characteristics are modified.
You should therefore drive in off-road level 3
with particular caution as it could otherwise
lead to an accident and/or serious injury to
you or others.
If you drive too fast at off-road level 3, then
the Reduce speed to below 12 mph
( 20 km/h ) message appears in the
multifunction display. You also hear a
warning. The vehicle is lowered.
i You cannot clear these messages.
Only select an off-road level when this is
appropriate for road conditions. Otherwise,
fuel consumption increases and handling
performance may be affected.
Your selection remains stored even if you
remove the SmartKey from the ignition lock.XStart the engine.XTurn the selector wheel clockwise :.
The vehicle is raised.
or
XTurn selector wheel ; counter-clockwise.
The vehicle is lowered.
Indicator lamps = for the desired off-road
level flash:
R Off-road level 1: the lower indicator lamp
flashes
R Off-road level 2: the lower and center
indicator lamps flash
R Off-road level 3: all three indicator lamps
flash
The vehicle is being adjusted to the off-road
level selected. As soon as an off-road level is
reached, the corresponding indicator lamp
stops flashing and lights up constantly.
192Driving systemsDriving and parking

If you select an off-road level when driving at
too high a speed, the Level selection
not permitted message appears in the
multifunction display.
You can select the following:
R off-road level 1 up to 60 mph(96 km/h)
R off-road level 2 up to 40 mph(64 km/h)
R off-road level 3 up to 12 mph(20 km/h)
If you drive faster than 55 mph (88 km/h), or
for longer than 20 seconds between 40 mph
(64 km/h) and 55 mph (88 km/h), then off-
road level 2 is canceled. The vehicle is
lowered to off-road level 1.
You will see a message in the multifunction
display, for example:
If you drive faster than 60 mph (96 km/h), off-
road level 1 is canceled. The vehicle is
lowered to highway level.^^
You will see a message in the multifunction
display, for example:
Depending on the ADS setting ( Y page 195),
the vehicle is lowered to high-speed level at
high speeds. If you return to a speed below
25 mph (40 km/h), the vehicle is raised back
to highway level.
Highway/high-speed level
! Make sure that there is enough ground
clearance when the vehicle is being
lowered. It could otherwise hit the ground,
damaging the underbody.:To raise the level;To lower the level=Indicator lampsXStart the engine.
If one or more indicator lamps = are on:
XTurn the selector wheel counter-
clockwise ; until all indicator lamps =
that are lit start to flash.
The vehicle is lowered to highway level. As
soon as the next lowest level is reached,
the indicator lamp stops flashing and goes
out.
While the adjustment is taking place, a
message appears in the multifunction
display, e.g.:
If you press the V, U , & or *
button on the multifunction steering wheel,
the message will disappear.
194Driving systemsDriving and parking

Selecting the unit of distance for the
digital speedometerXPress V or U on the steering wheel
to select the Settings menu.XPress the & button to select submenus.XPress the W or X button to select the
Instrument cluster submenu.XPress the & button to display Display
unit Digital speedometer .XPress the W or X button to select
km or miles as the unit of measurement for
distance.XPress the &, V or U button to
select a different display.
Selecting the language
The Language: function allows you to select
the language for the instrument cluster.
XPress V or U on the steering wheel
to select the Settings menu.XPress the & button to select submenus.XPress W or X to select the
Instrument cluster submenu.XPress & to select Language .XPress the W or X button to select the
desired language.XPress the &, V or U button to
select a different display.
Selecting the status line display
XPress V or U on the steering wheel
to select the Settings menu.XPress the & button to select submenus.XPress W or X to select the
Instrument cluster submenu.XPress & to select Status line
display .XPress W or X to select the display in
the status line: speed ( Speed) or outside
temperature ( Outside temp. ).
The selected display now appears
constantly in the lower multifunction
display. When you scroll through theStandard display menu (Y page 220), you
will see the display you have not selected.XPress the &, V or U button to
select a different display.
Time/date
This submenu is only available on vehicles
with no navigation module. To set the time
and the date for vehicles with a navigation
module, see the separate operating
instructions.
In the Time/date submenu, you can set the
time and date.
XPress V or U on the steering wheel
to select the Settings... menu.XPress the & button to select submenus.XPress the W or X button to select the
Time/date submenu.XTo set the time: press & to select
Clock Set Hour or Clock Set
Minute(s) .
or
XTo set the date: press & to select
Date Set Day , Date Set Month or Date
Set Year .XPress W or X to set a value.XPress the &, V or U button to
select a different display.
Lights
Switching the daytime running lamps on/
off
This function is not available in Canada.
If you have activated the Daytime Running
Lights function and the light switch is in the
$ or à position, the daytime running
lamps are automatically switched on when
the engine is running.
In the dark, the following also light up:
R the low-beam headlamps
R the parking lamps
R the tail lamps
224Menus and submenusOn-board computer and displays

weight, even when accessories for the
crossbars (e.g. ski racks, bicycle racks, etc.)
are being used. Overloading the vehicle could
result in an accident. When calculating the
weight placed on the roof please make sure
to add the weight of the crossbars, accessory
racks and the load carried together.
Always adapt your driving style to the road,
traffic and weather conditions, and drive with
added caution when the roof is loaded.
Always drive with extreme care when the
carrier is loaded. Take into consideration that
when the carrier is loaded, the handling
characteristics are different from those when
operating the vehicle without a carrier loaded.GWARNING
Do not use accessories which have not been
approved by Mercedes-Benz for use in
conjunction with these crossbars. If non-
approved accessories are used, these
accessories and/or the objects attached to
them could come loose from the vehicle,
thereby injuring you and other persons and/
or causing damage to property, including
damage to your vehicle.
! Have a second person assist you when
installing the crossbars. Otherwise, the
vehicle could be damaged.
! Objects that are attached to crossbar
system accessories must not limit or
obstruct the movement of the sliding
sunroof. Otherwise, the tilt/sliding sunroof
could be damaged when it is raised.
:Key;Cover cap=Sticker FRONT (or REAR)?Bolt for clamping bracketAClamping bracket
The front and the rear crossbars differ in
length. Attention must therefore be paid to
the FRONT or REAR stickers = on the
crossbars.
XUnlock cover cap ; with key :.XRemove cover cap ;.
Sticker = for identifying the installation
location FRONT or REAR becomes visible.XTurn bolt ? counter-clockwise using the
Allen key until clamping bracket A is wide
open.BFront crossbarCRear crossbarDRecessesEMarkingsFRoof railsStowage areas279Stowing and featuresZ

XPlace front crossbar B between markings
E on roof rails F.
i
Markings E are located on the inside of
each roof rail and are marked with white
lines.
?Bolt for clamping bracketAClamping bracketFRoof railsXEnsure that clamping bracket A is
positioned flush with the inside of roof rails
F .
If necessary, adjust the span of the
crossbar ( Y page 280).XTighten bolt ? slightly on both sides in a
clockwise direction.XPosition rear crossbar C on roof rails F
in such a way that the clamping brackets in
recesses D reach into the roof rails.XEnsure that clamping bracket A is
positioned flush with the inside of roof rails
F .
If necessary, adjust the span of the
crossbar ( Y page 280).XTighten bolt ? a little on both sides in a
clockwise direction.XTighten bolts ? on the front and the rear
crossbar. Maintain a tightening torque of
4 lb-ft (6 Nm) .GWARNING
Have the tightening torque checked after
mounting the crossbars. The screws could
come loose if they are not tightened to a
torque of 4 lb-ft (6 Nm).XAttach and lock cover caps ;.XStore the key and the Allen key back in the
stowage space underneath the trunk floor.
Adjusting the span of the crossbar
GWARNING
Only install the crossbars at the exact
locations designated on the roof rails. The
designated locations for the front crossbars
are between the markings engraved on the
inside of the roof rails. The designated
locations for the rear crossbars are between
the gaps on the roof rails.
Otherwise, the crossbars, mounted
accessories and the objects attached to them
could come loose from the vehicle causing an
accident, thereby injuring you and other
persons and/or causing damage to property,
including damage to your vehicle.
The span of the crossbar is adjusted to suit
your vehicle at the factory. These spans only
fit the intended positions on the vehicle.
Only install the crossbars at the marked
points and observe the FRONT and REAR
stickers =.
?Bolt for clamping bracketAClamping bracketGBolts for adjusting the span (a total of 2
on each side)HCover strip280Stowage areasStowing and features

XPull out cover strip H from the groove until
bolts G become visible on both ends of the
crossbar.XTurn bolts G counter-clockwise on both
sides by approx. two turns.XPlace the crossbars on the marked points
on the roof rails.XEnsure that clamping bracket A locks
flush with the roof rails on both sides. If
necessary, pull it out or push it into
clamping brackets A.XTighten bolts G. Maintain a tightening
torque of 4 lb-ft (6 Nm) .
The width of the clamping bracket is set
correctly.GWARNING
Have the tightening torque checked after
mounting the crossbars. The screws could
come loose if they are not tightened to a
torque of 4 lb-ft (6 Nm).
XPress cover strip H into the groove of the
crossbar bit by bit.XInstall the crossbars as described
( Y page 278).
Removing the crossbars
:Key;Cover cap=Sticker FRONT (or REAR)?Bolt for clamping bracketAClamping bracketXUnlock cover cap ; with key :.XRemove cover cap ;.XTurn the bolts for clamping bracket A
counter-clockwise until the crossbars can
be removed from the roof rails.
Shortening the cover strip
The cover strips reduce the wind noise that is
caused by the crossbars. If additional roof
accessories are mounted, it may be
necessary to shorten the cover strips.
HCover stripXPull out cover strip H from the groove.XMount the roof accessories to the
crossbars.XPlace cover strip H flush with the roof
accessories and mark the end of the
crossbar on the cover strip.XCut off cover strip H at the marked point.XPress cover strip H into the groove of the
crossbar bit by bit.
i Cover strips are available as Mercedes-
Benz accessories. Contact your authorized
Mercedes-Benz Service Center.
Stowage areas281Stowing and featuresZ

Example: vehicles with a gasoline engine
Example: vehicles with a diesel engine
XPull oil dipstick : out of the dipstick guide
tube.XWipe off oil dipstick :.XSlowly slide oil dipstick : into the guide
tube to the stop, and take it out again.
The oil level is correct if the level is between
MIN mark = and MAX mark ;.XAdd oil if necessary.
Adding engine oil
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
GWARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts.
! Use only engine oils and oil filters that
have been approved for vehicles equipped
with a service system. A list of the engine
oils and oil filters tested and approved in
accordance with the Mercedes-Benz
Specifications for Service Products can be
called up by visiting http://
www.mbusa.com (USA only). More
information about tested and approved
engine oils and oil filters is available from
any authorized Mercedes-Benz Center.
Damage to the engine or exhaust system is
caused by the following:
R using engine oils and oil filters which
have not been specifically approved for
the service system.
R replacing the engine oil or oil filter after
the replacement interval required by the
service system has elapsed
R using engine oil additives.
Example: engine oil cap
XTurn cap : counter-clockwise and remove
it.XAdd the amount of oil required.
Fill carefully to the maximum mark on the oil
dipstick.
i Depending on the engine, the difference
in quantity between the MIN mark and the
MAX mark on the dipstick is approximately
1.6 to 2.1 US qt (1.5 to 2 l).
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
302Engine compartmentMaintenance and care

damage to the engine or the catalytic
converter. Have excess oil siphoned off.
For further information on engine oil, see
( Y page 375).XReplace cap : on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
Checking and adding other service
products
Checking the coolant level
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
XTurn the SmartKey to position
2 (Y page 149) in the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y page 149).XCheck the coolant temperature gauge in
the multifunction display.
The coolant temperature must be below
158 ‡ (70 †).GWARNING
In order to avoid any potentially serious burns:
R use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
R do not remove the pressure cap on the
coolant reservoir if the coolant temperature
is above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
coolant reservoir contains hot fluid and is
under pressure.
R using a rag, slowly turn the cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.XSlowly turn cap : half a turn counter-
clockwise and allow excess pressure to
escape.XTurn cap : further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant is approximately 0.6 in
(1.5 cm) above marker bar = in the filler
neck when warm, there is enough coolant
in coolant expansion tank ;.XIf necessary, add coolant that has been
tested and approved by Mercedes-Benz.XReplace cap : and turn it clockwise as far
as it will go.
For further information on coolant, see
( Y page 376).
Windshield washer system and
headlamp cleaning system
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
i Vehicle components and their service
products must match. You should,
Engine compartment303Maintenance and careZ