clock MERCEDES-BENZ GL SUV 2009 User Guide

X
Pull telescopic lever :out forwards.
X Pull telescopic lever :upwards.
The ball coupling disengages and folds out
from under the rear bumper.
Indicator lamp ;flashes. The trailer power
socket folds away automatically.
X Guide telescopic lever :back again. X
Press the ball coupling in the direction of
the arrow by hand until it engages in a ver-
tical position.
Indicator lamp ;goes out.
The Trailer tow hitch
Check locking mech. message is shown
in the multi-function display until the ball
coupling is engaged.
X Remove the protective cap from the ball
coupling. Installing the ball coupling (vehicles
with exterior spare wheel*)
Before you can tow a trailer with your vehicle,
you must fit the ball coupling.
There is a key for the ball coupling.
X Make a note of the key number.
You can use this number to obtain a
replacement key from a Mercedes-Benz
Service Centre. G
Risk of injury
If the ball coupling does not engage correctly
when it is mounted, the vehicle/trailer com-
bination is not secured and the trailer could come loose. This could cause an accident. Fit
the ball coupling carefully and make sure that
it engages in position correctly.
The detachable ball coupling is located in the
stowage well under the luggage compartment
floor.
X Take the ball coupling and the key from the
stowage well under the luggage compart-
ment floor (Y page 209). X
Pull protective cap :underneath the
bumper vertically downwards in the direc-
tion of the arrow and out of the ball coupling
recess.
X Place protective cap :in the stowage well
under the luggage compartment floor. X
Pull protective cap ;off the lock in the
handwheel.
X Insert key :into the lock in the hand-
wheel.
X Turn key :anti-clockwise. 194
Trailer towing*Operation
* optional
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i
The key remains inserted when you
remove the ball coupling. X
Pull handwheel ?away from the ball cou-
pling in the direction of the arrow and turn
it clockwise until it engages.
The white dot on the ball coupling is aligned
with the red area on the handwheel.
X Insert the ball coupling vertically up into
ball coupling recess =in the direction of
the arrow until it engages. X
Handwheel ?turns automatically, aligning
green area Aon handwheel ?with white
dot Bon the ball coupling.
X Turn key :to the stop in the direction of
the arrow (lock).
X Remove key :.
X Press protective cap ;onto the lock. G
Risk of accident
The ball coupling is only securely mounted
when the green area on the handwheel is
aligned with the white dot on the ball coupling and the key can be removed. If the ball cou-
pling is not securely mounted, it may come
loose.
The ball coupling must be locked and the key
must be removed when towing a trailer. This
is the only way to guarantee that the ball cou-
pling is secured and cannot come loose while
the vehicle is in motion. If the ball coupling
cannot be locked and the key cannot be
removed, remove the ball coupling and clean
it.
If the ball coupling can still not be fitted
(locked) after it has been cleaned, remove the
ball coupling. The trailer tow hitch must then
not be used to tow a trailer, as safe operation
is not guaranteed.
Have the entire trailer coupling checked at a
qualified specialist workshop. Mercedes-
Benz recommends that you use a Mercedes-
Benz Service Centre for this purpose. In par-
ticular, work relevant to safety or on safety-
related systems must be carried out at a quali-
fied specialist workshop. :
Socket Coupling up and uncoupling a trailer
Coupling up a trailer G
Risk of injury
Never lock, unlock, open or close a vehicle
door or tailgate when coupling up or decou-
pling a trailer. The vehicle level could change
and you could endanger yourself or others. Trailer towing*
195Operation
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climbing capability, decrease with increas-
ing altitude.
If the trailer swings from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary. G
Risk of accident
On no account should you attempt to draw the
vehicle/trailer combination out by increasing
speed. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch. X
Place the protective cap on the ball cou-
pling. G
Risk of injury
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured.
X Pull telescopic lever :out forwards.
X Pull telescopic lever :upwards.
The ball coupling disengages and folds out
from under the rear bumper. Indicator
lamp ;flashes.
X Guide telescopic lever :back again. X
Press the ball coupling in the direction of
the arrow until it engages behind the
bumper.
Indicator lamp ;goes out and the mes-
sage in the multi-function display disap-
pears. Removing the ball coupling (vehicles
with exterior spare wheel*)
X Pull the protective cap off the lock in the
handwheel.
X Use the key to unlock the lock in the hand-
wheel.
X Hold the ball coupling. Pull the handwheel
away from the ball coupling and turn it
clockwise until it engages.
The red area on the handwheel is aligned
with the white dot on the ball coupling.
X Pull out the ball coupling downwards.
X Clean the ball coupling if it is dirty.
X Press the protective cap into the ball cou-
pling recess until it engages.
X Make sure that the protective cap is firmly
in place.
Storing the ball coupling X
Place the ball coupling with the key inser-
ted in the ball coupling stowage compart-
ment in the stowage well under the luggage
compartment floor. 198
Trailer towing*Operation
* optional
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G
Risk of accident
Do not carry the ball coupling in the vehicle
interior if it is not secured.
Otherwise, you and others could be injured by
the ball coupling being thrown around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
Information on cleaning and care of the trailer
coupling can be found at (Y page 203).Trailer power supply
When it leaves the factory, your vehicle's
trailer socket outlet is equipped with a per-
manent power supply and a power supply that
is switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket
pin 10.
! You can connect consumers with a power
rating of up to 240 W to the permanent
power supply and up to 180 W to the power
supply that is switched on via the ignition
lock.
You must not charge a trailer battery using
the power supply.
The trailer's turn signal lamps are only guar-
anteed to function when bulbs are used.
You can obtain further information about
installing the trailer electrics from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
X To switch the connected power supply
on or off: turn the key in the ignition lock
to position 2or 0, respectively. Trailer with 7-pin connector
If your trailer has a 7-pin connector, you can
connect it to the 13-pin socket on the ball
coupling using an adapter or, if necessary, an
adapter cable. Both of these can be obtained
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
Fitting the adapter X
Open the socket cover.
X Insert connector with lug :into
groove ;on the socket and turn the con-
nector clockwise to the stop.
X Make the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
! Make sure that there is sufficient cable
play so that the cable cannot become
detached when cornering. Service
ASSYST PLUS service interval display
The ASSYST PLUS service interval display
informs you of the next service due date.
The service due date is shown in the multi-
function display, for example:
Service A in .. days
Service A in .. km
Service A due now
The letter indicates how much time the work-
shop will require to carry out the service work. Service
199Operation
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A
Velcro fastener
B Jack
C Wheel bolts
D Folding wheel chock
E Fuse allocation chart
F Stowage well
G Warning triangle
Removing the "Minispare" emergency
spare wheel* X
Remove the warning triangle and jack.
X Turn emergency spare wheel retainer :
anti-clockwise and remove it.
X Remove the insert.
X Remove the "Minispare" emergency spare
wheel. Display messages
Notes
G
Risk of accident
The on-board computer only records and dis-
plays malfunctions and warnings from certain
systems. For this reason, you should always
make sure that your vehicle is safe to use. You
could otherwise cause an accident by driving
an unsafe vehicle.
Certain display messages are accompanied
by a warning tone or a continuous tone.
The multi-function display shows high-priority
display messages in red. Please respond in accordance with the dis-
play messages and follow the additional
notes in this Owner's Manual. G
Risk of accident
No further messages can be displayed if the
instrument cluster and/or the multi-function
display fails.
This means that you will not see information
about the driving situation, such as the speed,
outside temperature, warning/indicator
lamps, display messages or system failures.
The vehicle's handling characteristics may be
affected. Adjust your driving style and speed
accordingly.
Immediately 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 purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist workshop.
Calling up display messages The on-board computer saves certain display
messages, which you can call up.
X
Press VorU on the steering wheel
repeatedly, until either the original menu or
the message memory menu is shown.
If there are display messages, the multi-
function display shows, e.g. 2 messages.
X Using &or* scroll through the dis-
play messages.
Hiding display messages You cannot hide display messages of the
highest priority. The multi-function display
shows these messages continuously until
their causes have been remedied.
Use the buttons on the multi-function steer-
ing wheel.
X
Use the V,U,&or* button
on the steering wheel to select another dis-
play. Display messages
211Practical 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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Changing the front bulbs
Dipped-beam headlamps (halogen
headlamps) X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and
remove it.
X Turn bulb holder ;anti-clockwise and
remove it.
X Remove the bulb from bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Align housing cover :and turn it clock-
wise.
Main-beam headlamps X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and
remove it. X
Turn bulb holder ;anti-clockwise and
remove it.
X Remove the bulb from bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Align housing cover :and turn it clock-
wise.
Side lamp/parking lamp X
Switch off the lights.
X Open the bonnet.
X Turn bulb holder :anti-clockwise and
remove it.
X Remove the bulb from bulb holder :.
X Insert the new bulb into bulb holder :.
X Insert bulb holder :and turn it clockwise.
Turn signal lamp X
Switch off the lights.
X Open the bonnet. 258
Changing bulbsPractical advice
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X
Turn bulb holder :(WY 5 W)/;
(PY 21 W) anti-clockwise and pull it out.
X Remove the bulb from bulb holder :/;.
X Insert the new bulb into bulb
holder :/;.
X Insert bulb holder :/;and turn it clock-
wise. Changing the rear bulbs
Opening and closing the side trim pan-
els You must open the side trim panel in the lug-
gage compartment before you can change
the bulbs in the tail lamps.
Left-hand side trim panel
X
To open: turn catch :90° in the direction
of the arrow and remove side trim
panel ;.
X Insert a suitable object, e.g. a coin, into the
slots of release buttons =.X
Turn release buttons =90° in the direc-
tion of the arrow and remove stowage com-
partment ?.
X To close: insert stowage compart-
ment ?and turn release buttons =in the
opposite direction to the arrow until the
slots on the release buttons are in a vertical
position.
X Insert side trim panel ;and turn
catch :90° in the opposite direction to
the arrow.
Right-hand side trim panel X
To open: insert a suitable object, e.g. a
coin, into the slot of release catch :on
side trim panel ;.
X Turn release catch :90° in the direction
of the arrow and remove side trim
panel ;.
X To close: insert side trim panel ;and turn
catch :90° in the opposite direction to
the arrow. Changing bulbs
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Tail lamps with LEDs
:
Rear foglamp
; Reversing lamp
X Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel (Y page 259).
X Turn the corresponding bulb holder anti-
clockwise and remove it.
X Remove the bulb from the bulb holder.
X Insert the new bulb into the bulb holder.
X Insert the bulb holder and turn it clockwise.
X Close the side trim panel (Y page 259).
Tail lamp (exterior spare wheel
bracket*) On vehicles with an exterior spare wheel
bracket*, the following lamps are located in
the bumper:
R turn signal lamp
R tail lamp/parking lamp/brake lamp
R licence plate lamp X
Switch off the lights.
X Insert a plastic card into the gap between
the bumper and lamp cluster :.
X Push the plastic card in the direction of the
arrow.
Lamp cluster :pops out.
X Remove lamp cluster :. ;
Turn signal lamp
= Tail lamp/parking lamp/brake lamp
X Turn the corresponding bulb holder anti-
clockwise and remove it.
X Press the lamp slightly into the holder, turn
it anti-clockwise and pull it out.
X Insert the new bulb into the bulb holder and
turn it clockwise.
X Insert the corresponding bulb holder and
turn it clockwise.
X Insert lamp unit :and press in firmly.
Lamp unit :snaps into place.
Licence plate lamp 260
Changing bulbsPractical advice
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Jump-start connection point
:
Earth point (negative terminal)
; Positive terminal (under the cover) Reconnecting the battery
! Always disconnect the battery in
the order described below. Never swap the
battery terminals. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose.
i If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R set the time (Y page 104).
On vehicles with COMAND and a naviga-
tion system*, the clock is set automati-
cally.
R reset the sliding/tilting sun-
roof* (Y page 151).
R reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once (Y page 73)
R reset the side windows ( Ypage 86). Jump-starting
If your vehicle's battery is discharged, the
engine can be jump-started from another
vehicle or from an external battery using jump
leads.
Observe the following points:
R you may only jump-start when the engine
and catalytic converter are cold.
R do not start the engine if the battery is fro-
zen. Let the battery thaw first.
R jump-starting may only be performed from
batteries with a nominal voltage of 12 V.
R only use jump leads which have a sufficient
cross-section and insulated terminal
clamps.
i Jump leads and further information about
jump-starting can be obtained from any
Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts.
Do not use a rapid-charging device to start
the engine. G
Risk of injury
There is a risk of acid burns when jump-start-
ing a vehicle due to the gases which escape
from the battery. Do not lean over the battery
while the engine is being jump-started. G
Risk of explosion
Gases escaping from the battery during jump-
starting may cause minor explosions. Avoid
creating sparks. Keep naked flames away
from the battery, and do not smoke.
Comply with safety precautions and take pro-
tective measures when handling batteries.
You will find these under "Battery" in the
index.
X Make sure that the two vehicles do not
touch.
X Depress the parking brake firmly. 276
Jump-startingPractical advice
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