start stop button MERCEDES-BENZ GL SUV 2009 User Guide
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do not switch the automatic transmission to
another gear.
If you do not wait for the gear change process
to complete, it may not be correctly imple-
mented. The transfer case may then be in
neutral and the connection between the
engine and the drive axles may be disen-
gaged. The vehicle could then move freely,
even if a gear is engaged, and could inadver-
tently start moving, particularly if it is on a
slope.
Observe the messages in the multi-function
display.
From HIGH RANGE to LOW RANGE
! Only carry out the gear change process if:
R the engine is running
R the automatic transmission is in N
R you are not driving above 40 km/h
X Press LOW RANGE button :.
Indicator lamp ;flashes. LOW RANGE
indicator =appears in the multi-function
display.
When the gear change is complete, indica-
tor lamp ;lights up. While indicator lamp
;is flashing, you can
cancel the gear change by pressing LOW
RANGE button :again.
From LOW RANGE to HIGH RANGE
! Only carry out the gear change process if:
R the engine is running
R the automatic transmission is in N
R you are not driving above 70 km/h
X Press LOW RANGE button :.
Indicator lamp ;flashes.
If the gear change process has taken place,
indicator lamp ;and LOW RANGE indica-
tor =in the multi-function display go out.
While indicator lamp ;is flashing, you can
cancel the gear change by pressing LOW
RANGE button :again.
Messages in the multi-function display
If a gear change process has not been suc-
cessful, the following messages may be dis-
played in the multi-function display:
R Max. speed 40 km/h
You have been driving faster than
40 km/h. Indicator lamp ;also flashes.
X Drive more slowly to carry out the gear
change process.
R Engage N briefly
The automatic transmission is in Dand you
are now driving below 40 km/h.
XMove the DIRECT SELECT lever to Nto
carry out the gear change process.
R Shifting process cancelled Reacti‐
vate
The gear change process was not carried
out.
XMaintain all gear change conditions
and carry out the gear change process
again.
R Stop vehicle. Apply parking brake Off-road driving
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X
Start the engine.
X Turn selector wheel :clockwise.
The vehicle is raised.
or
X Turn selector wheel ;anti-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 centre indi-
cator 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.
While the adjustment is taking place, a mes-
sage appears in the multi-function display,
e.g.: The vehicle rises from highway level to off-
road level 1.
If you press the
WorX button on the
multi-function steering wheel, the messages
will disappear.
Once off-road level 2 has been reached, you
will see a message in the multi-function dis-
play, for example: Lower and centre indicator lamps
=are on. If you have not previously selected the off-
road menu (Y
page 102) in the on-board com-
puter, the message disappears after about
five seconds.
The 20km/h max. message draws your atten-
tion to the maximum speed permitted for off-
road level 3.
While the adjustment from off-road level 2 to
off-road level 3 is taking place, you will see a
message such as the following in the multi-
function display: Once off-road level 3 has been reached, you
will see a message in the multi-function dis-
play, for example:
If you drive above 20 km/h in off-road level
3, you will see the following message in the
multi-function display:
Off-road level 3 is cancelled.
If you then increase the speed again, the mes-
sage remains in the multi-function display.
The newly set level is not displayed until the
vehicle has been set to a level suitable for the
current speed. Driving systems
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If one or more indicator lamps
=are on:
X Turn the selector wheel anti-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 mes-
sage appears in the multi-function display,
e.g.: If you press the
WorX button on the
multi-function steering wheel, the messages
will disappear.
Once highway level has been reached, all indi-
cator lamps =go out. You will see a message
in the multi-function display, for example: If you have not previously selected the off-
road menu (Y
page 102) in the on-board com-
puter, the message disappears after about
five seconds.
The vehicle automatically selects highway
level if you are driving at a speed above
115 km/h or if you drive at between
100 km/h and 115 km/h for around 20 sec-
onds. Depending on the ADS basic setting
(Y page 129), the vehicle is lowered to high-
speed level at high speeds. PARKTRONIC*
G
Risk of accident
PARKTRONIC is only an aid and may not
detect all obstacles. It is not a substitute for
attentive driving.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others. G
Risk of injury
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
PARKTRONIC is an electronic parking aid
using ultrasound. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically when
you:
R switch on the ignition
R release the parking brake
R shift the automatic transmission to D,Ror
N
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper. :
Example: sensors in the front bumper,
left-hand side Driving systems
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Page 180 of 309

temperature, or for about 30 minutes if the
engine is not at normal operating temper-
ature (if you had started the engine only
briefly), before measuring.
i If you wish to cancel the measurement,
press the *or& button on the multi-
function steering wheel.
Using the oil dipstick Vehicles with a petrol/diesel engine (example)
X Pull oil dipstick :out of the oil dipstick
tube.
X Wipe off oil dipstick :.
X Insert oil dipstick :into the oil dipstick
tube to the stop, and take it out again.
The oil level is correct if the level is between
the minimum mark =and maximum
mark ;.
X Top up the oil if necessary.
Topping up the engine oil H
Environmental note
When topping up the oil, take care not to spill
any. Oil must not be allowed to escape into
the soil or waterways. You would otherwise be
damaging the environment. Cap (example)
X
Turn cap :anti-clockwise and remove.
X Top up with the amount of oil required
(Y page 289).
i The difference in quantity between the
minimum mark and maximum mark is
approximately 2 litres.
! Do not add too much oil. If too much oil
is added and the oil level is above the max-
imum mark on the dipstick, the engine or
catalytic converter could be damaged.
Have excess oil siphoned off.
X Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
For further information on engine oil, see
(Y page 289). Coolant
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X Turn the key to position 2(Y page 63) in
the ignition lock.
X Check the coolant temperature gauge in
the multi-function display. G
Risk of injury
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has Engine compartment
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Page 205 of 309

High-pressure cleaners
G
Risk of accident
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent.
! Observe the instructions issued by the
equipment manufacturer concerning the
distance to be maintained between the
nozzle of the high-pressure cleaner and the
vehicle (at least 30 cm).
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door joint
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to failures or leaks.
Cleaning the paintwork Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop immediately, e.g. a
Mercedes-Benz Service Centre.
X Remove the following types of dirt immedi-
ately, whilst avoiding rubbing too hard.
Soak:
R insect remains with insect remover
R bird droppings with water and rinse off the treated surface after-
wards.
Remove:
R
tree resin, oils, fuels and greases by rub-
bing gently with a cloth soaked in petro-
leum ether or lighter fluid.
R tar stain with tar remover
R wax with silicone remover
! Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. Otherwise, you could
damage the paintwork.
Cleaning the wheels !
Do not use acidic wheel cleaners to
remove brake dust. This could damage
wheel bolts and brake components.
Cleaning the windows X
Clean the inside and outside of the win-
dows with a damp cloth and a cleaning
product approved and recommended by
Mercedes-Benz.
! Clean the water drainage channels of the
windscreen and the rear window at regular
intervals. Under certain circumstances,
deposits such as leaves, petals and pollen
may prevent water from draining away
leading to corrosion damage.
Cleaning the wiper blades G
Risk of injury
Before cleaning the windscreen or wiper
blades, turn the key to position 0in the igni-
tion lock or press the Start/Stop button* until
all indicator lamps have gone out in the instru-
ment cluster. The windscreen wipers could
otherwise move and cause injury. 202
CareOperation
* optional
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Display messages
Possible causes/consequences and
X
X Solutions + Key not
detected
(red display
message)
The KEYLESS GO key* is not in the vehicle.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Locate the KEYLESS GO key*. The KEYLESS GO key* is not detected while the engine is
running because there is interference from a strong source of
radio waves.
X Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Operate the vehicle using the key in the ignition lock if nec-
essary. + Key not
detected
(white dis-
play mes-
sage)
The KEYLESS GO* key cannot be detected at present.
X
Change the location of the key with the KEYLESS GO func-
tion* in the vehicle.
X If the key with the KEYLESS GO* function still cannot be
detected: operate the vehicle with the key in the ignition
lock. + Key detec‐
ted in
vehicle
The KEYLESS GO key* has been detected inside the vehicle
during locking.
X
Remove the KEYLESS GO key* from the vehicle. + You need
a new key The key must be replaced.
X
Visit a qualified specialist workshop. +
button,
then
insert key
The KEYLESS GO* key cannot be detected continuously.
X
Insert the key into the ignition lock and turn it to the desired
position.
X Visit a qualified specialist workshop. & inopera‐
tive Bat‐
tery weak The on-board voltage is too low. The auxiliary heating/venti-
lation* has switched off or cannot be switched on.
X
Drive for a longer distance.
The battery is being charged. The auxiliary heating/venti-
lation *can be reactivated as soon as there is sufficient on-
board voltage. Display messages
231Practical advice
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Page 247 of 309

Automatic transmission
Problem
Possible causes/consequences and
X XSolutions The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop the vehicle.
X Turn the key in the ignition to position 0(Y page 63) or press
the Start/Stop button* repeatedly until all indicator lamps in
the instrument cluster go out.
X Wait at least 10 seconds before restarting the engine.
X Have the transmission checked at a qualified specialist work-
shop immediately. PARKTRONIC*
Problem
Possible causes/consequences and
X XSolutions Only the red segments
in the PARKTRONIC
warning display are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds and
the indicator lamp in
the PARKTRONIC but-
ton lights up. PARKTRONIC has malfunctioned and has switched itself off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 203).
X Switch the ignition back on. 244
TroubleshootingPractical advice
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Locking/unlocking in an emergency
Emergency key element
If you use the emergency key element to
unlock and open the driver's door, the anti-
theft alarm system* will be triggered
(Y page 54).
There are several ways to turn off the alarm:
X Press the %or& button on the key.
or
X Insert the key into the ignition lock.
or
X Press the start/stop button *in the ignition
lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS
GO*. The key must be outside the vehicle.
Removing the emergency key element
(vehicles with KEYLESS GO*) X
Push release catch :in the direction of
the arrow and at the same time remove
emergency key element ;from the key. Removing the emergency key element
(vehicles without KEYLESS GO*) X
Push release catch :in the direction of
the arrow and at the same time remove
emergency key element ;from the key. Unlocking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key or KEYLESS GO*:
X Remove the emergency key element from
the key (Y page 250). X
Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Firmly turn the emergency key element
anti-clockwise as far as it will go to position
1 and hold it in this position.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
X Pull the door handle firmly.
The locking knob pops up. 250
Locking/unlocking in an emergencyPractical advice
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Page 266 of 309

X
Vehicles with the AIRMATIC package*
or Off-Road Pro engineering package*:
remove the Start/Stop button from the
ignition lock.
X Get out of the vehicle.
X Close the driver’s door.
X Place the warning triangle (Y page 208) at
a suitable distance. Observe legal require-
ments.
i Only operate the electric air pump using
the socket in the footwell of the second row
of seats (Y page 163), even if the ignition
is turned off.
An emergency cut-off ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, power to the
sockets is automatically cut-off. This
ensures that there is sufficient power to
start the engine. Using the TIREFIT kit
You can use the TIREFIT kit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT at outside temperatures
down to -20 †. G
Risk of accident
In the following cases your safety is especially
endangered, as tyre sealant is insufficient if:
R there are cuts or punctures in the tyre
greater than 4 mm.
R the wheel rim is damaged.
R you have driven at very low tyre pressures
or on a flat tyre.
Do not drive any further. Consult a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop. X
Do not remove any foreign objects which
have penetrated the tyre, e.g. screws or
nails.
X Remove the TIREFIT kit, the accompanying
"max. 80 km/h" sticker and the electric air
pump from the stowage well underneath
the luggage compartment floor
(Y page 209). X
Affix part :of the sticker within the driv-
er's field of vision.
X Affix part ;of the sticker near the valve
on the wheel with the defective tyre. G
Risk of injury
TIREFIT must not come into contact with your
skin, eyes or clothing.
R If TIREFIT comes into contact with your
eyes or skin, immediately rinse thoroughly
with clean water.
R Change out of clothing which has come into
contact with TIREFIT immediately.
R If an allergic reaction occurs, consult a doc-
tor immediately.
Keep TIREFIT away from children.
R If TIREFIT is swallowed, immediately rinse
your mouth out thoroughly and drink plenty
of water.
R Do not induce vomiting. Consult a doctor
immediately.
R Do not inhale TIREFIT fumes. Flat tyre
263Practical advice
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i
If TIREFIT leaks out, allow it to dry. It can
then be removed like a layer of film.
If you get TIREFIT on your clothing, have it
cleaned as soon as possible with perchloro-
ethylene. G
Risk of injury
Comply with the manufacturer's safety
instructions shown on the sticker on the elec-
tric air pump.
Your vehicle may be equipped with one of two
different air pumps. Version 1 can be identi-
fied by the flap, behind which the hose with
the pressure gauge and cable are located;
version 2 has a pressure release button in the
air hose of the electric air pump.
Version 1 X
Open flap ;on the electric air pump.
X Pull connector Awith cable and air pump
hose Bout of the housing.
X Screw air pump hose Bonto flange Cof
TIREFIT sealant filler bottle :.
X Place TIREFIT sealant filler bottle :head
downwards into recess =of the electric
air pump. X
Remove the cap from valve Eon the faulty
tyre. X
Make sure pressure release screw Fon
pressure gauge Gis fully closed.
X Screw filler hose Donto valve E.
X Insert connector Ainto the socket in the
footwell of the second row of seats
(Y page 163).
! The socket/cigarette lighter* in the front
centre console is not designed for operat-
ing the electric air pump.
X Vehicles without KEYLESS GO*: turn the
key to position 2(Y page 63) in the ignition
lock.
X Vehicles with KEYLESS GO*: press the
Start/Stop button twice (position
2 (Y page 63)). 264
Flat tyrePractical advice
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