MERCEDES-BENZ GL SUV 2009 Owners Manual

Changing a wheel and fitting the
spare wheel G
Risk of accident
The wheel dimensions and tyre size of the
"Minispare" emergency spare wheel *may dif-
fer from those of the damaged wheel.
Your vehicle's handling characteristics will
change when a "Minispare" emergency spare
wheel* is fitted. Adapt your style of driving
accordingly.
The "Minispare" emergency spare wheel*
may only be used for a short time. Do not
exceed the maximum speed of 80 km/h and
do not deactivate ESP ®
.
Never drive the vehicle with more than one
"Minispare" emergency spare wheel* fitted. G
Risk of accident
Have the "Minispare" emergency spare
wheel* or the spare wheel* replaced with a
new wheel as soon as possible at a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
Preparing the vehicle X
Prepare the vehicle as described
(Y page 262).
X If a trailer is coupled, uncouple it.
X Place the wheels in the straight-ahead posi-
tion.
X Remove the following items from the stow-
age well under the luggage compartment
floor:
R the wheel wrench
R the folding wheel chock
R the jack Use the folding wheel chock to prevent the
vehicle from rolling away.
X
Fold both plates :upwards.
X Fold out lower plate ;.
X Guide the lugs on the lower plate fully into
openings in base plate =. Securing the vehicle on level ground
X
On level ground: place the folding wheel
chock or similar under the wheel that is
diagonally opposite to the wheel you wish
to change. Securing the vehicle on slight downhill gradients268
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X
On downhill gradients: place the folding
wheel chock or similar behind the wheels
of the front and rear axle. X
Using wheel wrench ?, loosen the bolts on
the wheel you wish to change by about one
full turn. Do not unscrew the bolts com-
pletely.
X Remove the spare wheel from the exterior
bracket* (Y page 210).
or
X Remove the "Minispare" emergency spare
wheel* from the stowage well under the
luggage compartment floor (Y page 210).
Raising the vehicle G
Risk of injury
The jack is designed only to raise the vehicle
for a short time while a wheel is being
changed.
The vehicle must be placed on stands if you
intend to work under it.
Make sure that the jack is placed on a firm,
non-slip, level surface. Do not use wooden
blocks or similar objects as a jack underlay.
The vehicle could otherwise fall off the jack
and seriously injure you.
Do not start the engine at any time while the
wheel is being changed.
Do not lie under the vehicle when it is being
supported by the jack. If you do not raise the
vehicle as described, it could slip off the jack (e.g. if the engine is started or a door or the
tailgate is opened or closed), and you could
be seriously injured.
G
Risk of accident
If you fail to position the jack correctly, the
vehicle may:
R slip off the jack
R injure you or others
R be damaged
Thus, it is important to make sure that the jack
is positioned correctly in the respective jack-
ing points. Before positioning the jack,
remove any dirt that may have collected in the
jacking points.
The jacking points for the jack are located
behind the wheel housings of the front wheels
and in front of the wheel housings of the rear
wheels (arrows). X
Position jack ;at jacking point :. Flat tyre
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X
Make sure that the base of the jack is posi-
tioned directly under jacking point :.
X Take the socket wrench and ratchet ring
spanner =out of the vehicle tool kit.
X Insert the socket into ratchet ring spanner
= and place it on the jack so that the let-
tering AUFis visible.
X Raise the vehicle with ratchet ring spanner
= until the tyre is at most three centime-
tres off the ground. X
Unscrew the uppermost wheel bolt com-
pletely.
X In place of the wheel bolt, screw centring
pin ?from the vehicle tool kit into the
thread.
X Unscrew the remaining wheel bolts fully.
! Do not place wheel bolts in sand or on a
dirty surface. The bolt and wheel hub
threads could otherwise be damaged when
you screw them in.
X Remove the wheel. Fitting a new wheel G
Risk of accident
Replace damaged or corroded wheel bolts.
Never oil or grease wheel bolts. This could
cause the bolts to loosen in the wheel hub. G
Risk of accident
If a wheel hub thread is damaged, do not drive
the vehicle any further. Consult a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre or "Service 24". In particular, work rel-
evant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop. G
Risk of accident
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been
approved for Mercedes-Benz and the respec-
tive wheel. Other bolts may work loose or
damage the brake system.
Do not tighten the wheel bolts completely
while the vehicle is still jacked up. The vehicle
could topple off the jack. 1
Wheel bolts for 18", 19" and 20" wheels
2 Wheel bolts for the "Minispare" emer-
gency spare wheel* 270
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!
Always use wheel bolts ;to fit the
"Minispare" emergency spare wheel*.
Using other wheel bolts to fit the
"Minispare" emergency spare wheel* could
damage the brake system.
i Wheel bolts 2can be found with the
"Minispare" emergency spare wheel*.
X Clean the wheel and wheel hub contact
surfaces. X
Place the "Minispare" emergency spare
wheel* or the spare wheel* onto the cen-
tring pin and push it on. X
Tighten the wheel bolts until they are fin-
ger-tight.
X Unscrew the centring pin.
X Tighten the last wheel bolt until it is finger-
tight. Lowering the vehicle X
Place the ratchet ring spanner onto the
hexagon nut of the jack so that the letters
AB are visible.
X Lower the vehicle by turning the ratchet
ring spanner until the vehicle is once again
standing firmly on the ground.
X Place the jack to one side. X
Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indica-
ted (: toA). The tightening torque is
150 Nm. G
Risk of accident
Have the tightening torque checked immedi-
ately after a wheel is changed. The wheels
could work loose if they are not tightened to
a torque of 150 Nm.
X Turn the jack back to its initial position and
stow it and the rest of the vehicle tool kit in
the luggage compartment.
Vehicles with the "Minispare" emergency
spare wheel*:
X Wrap the faulty wheel in the protective film
included with the "Minispare" emergency
spare wheel* and transport the wheel in
the luggage compartment.
or
X Depending on the size of the wheel, you
may also be able to secure the faulty wheel
in the emergency spare wheel well. In this
case, you will have to remove the stowage
tray from the emergency spare wheel well Flat tyre
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and stow it securely in the luggage com-
partment.
Vehicles with a spare wheel*:
X Use the bolts to secure the faulty wheel to
the exterior spare wheel bracket*.
i Do not activate the tyre pressure moni-
tor* until the defective tyre has been
removed from the vehicle. Battery
Notes on the vehicle battery
In order for the battery to achieve the maxi-
mum possible service life, it must always be
sufficiently charged.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period.
To prevent damage from corrosion, only
replace the battery with one that has a central
ventilation cover.
Consult a Mercedes-Benz Service Centre if
you wish to leave your vehicle parked up for
a long period of time. G
Risk of injury
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the battery.
Avoid creating sparks. Battery acid is caustic.
Avoid contact with the skin,
eyes or clothing.
Wear suitable protective
clothing, in particular
gloves, an apron and a face
mask. Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary.
Wear eye protection.
Keep children away.
Observe this Owner's Man-
ual.
H
Environmental note
Do not dispose of batteries in the household
rubbish. Dispose of defective batteries in an
environmentally responsible manner. Take
them to a Mercedes-Benz Service Centre or
to a special collection point for old batteries. G
Risk of injury
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event
of an accident.
To prevent acid burns, observe the following
safety notes when handling batteries:
R do not lean over the battery.
R do not place any metal objects on a battery.
Otherwise, you could cause a short circuit
and the battery's gas mixture could ignite.
R make sure that you do not create an elec-
trostatic charge, e.g. by wearing synthetic
clothing or as a result of friction on fabrics.
Therefore, you should not pull or slide the
battery over carpets or other synthetic
materials. 272
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R
never touch the battery first. To discharge
a possible electrostatic charge, step out of
the vehicle first and touch the bodywork.
R do not wipe the battery using a cloth. The
battery may explode as a result of electro-
static charge or due to flying sparks.
! Before loosening the terminal clamps of
the battery, switch off the engine and
remove the key or, on vehicles with KEY-
LESS GO*, make sure that the ignition is
not switched on. In the instrument cluster,
all of the indicator lamps must be out. Oth-
erwise, you may destroy electronic compo-
nents, such as the alternator.
i Mercedes-Benz recommends that you
have work involving the battery, e.g.
removal, charging and replacement, car-
ried out at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
The battery is located under the front seat on
the right-hand side when viewed in the direc-
tion of travel. Disconnecting the battery
G
Risk of accident
If the battery is disconnected:
R the brake boosting effect will not be avail-
able. Greater braking force will then be
required and brake pedal travel will be lon-
ger. If necessary, depress the brake pedal
with maximum force.
R the transmission is locked in position P
! Always disconnect the battery in
the order described below. Never swap the
battery terminals. You may otherwise dam-
age the vehicle electronics. X
Firmly depress the parking brake and move
the transmission to position P.
X Position the right-hand front seat as far for-
wards as possible.
X Switch off all electrical consumers (e.g.
radio, blower, etc.). X
Get into the rear compartment.
X Remove battery cover :under the right-
hand front seat. X
Use a sharp knife on carpet ;to cut along
the dashed white line until you reach the
perforated part.
X Position the right-hand front seat at its rear-
most position. Battery
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X
Fold the piece of cut carpet ;in the direc-
tion of the arrow.
X Adjust the right-hand front seat to its high-
est position.
X Position the right-hand front seat as far for-
wards as possible.
X Turn the key to 0(Y page 63) in the ignition
lock and remove it or make sure that no
ignition position has been selected with
KEYLESS GO*. In the instrument cluster, all
of the indicator lamps must be out. X
Remove fastening clip ?.
X Remove air duct =by pulling it in the
direction of the arrow. X
Remove protective cover Afrom battery
B. X
Disconnect negative terminal clamp D
from the battery and put it down so that it
does not touch positive terminal clamp C.
X Remove the cover from positive terminal
clamp C.
X Remove positive terminal clamp Cfrom
the battery. Removing the battery
X Disconnect the battery ( Ypage 273). 274
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X
Remove breather hose E.
X Loosen battery attachment bolts Fwhich
hold the battery in place.
i For this you need a 13 mm socket wrench
with an extension that is at least 30 cm
long.
X Release bracket G. X
Lift battery Hat the side until the lower
edge is free.
X Pull out battery Hin the direction of the
arrow. Charging and fitting the battery
G
Risk of injury
Only charge the battery in a well-ventilated
area. As the battery is being charged, gases
can escape and generate minor explosions.
This could injure you and other persons or
cause damage to the paintwork or acid cor-
rosion on the vehicle. You can obtain information about battery
chargers which allow the battery to be
charged while still installed from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
G
Risk of injury
There is a risk of acid burns during the charg-
ing process due to the gases which escape
from the battery. Do not lean over the battery
during the charging process. G
Risk of injury
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
! Never charge the battery when it is instal-
led unless the battery charger has been
tested and approved by Mercedes-Benz.
These battery chargers allow the battery to
be charged while it is still installed.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
X Open the bonnet.
X Connect the battery charger by its positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
(Y page 276). Battery
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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
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X
Shift the transmission to position P.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Open the bonnet (Y page 174). X
Open cover :of positive terminal ;.
X Connect positive terminal ;on your vehi-
cle to positive terminal =of donor battery
C using the jump lead, beginning with your
own battery.
X Start the engine of the donor vehicle and
run it at idling speed.
X Remove cover Afrom earth point B.
X Connect negative terminal ?of donor bat-
tery Cto earth point Bof your vehicle
using the jump lead, connecting the jump
lead to donor battery Cfirst.
X Start the engine.
X First remove the jump lead from earth
point Band negative terminal ?, then
from positive terminal ;and positive ter-
minal =, each time disconnecting from the
battery on your own vehicle first.
X Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Towing and tow-starting
Points to remember
G
Risk of accident
If you have the vehicle towed, you must use a
rigid towing bar if:
R the engine is not running.
R there is a brake system malfunction.
R there is a malfunction in the power supply
or the vehicle's electrical system.
The power steering and the brake force boos-
ter do not work when the engine is not run-
ning. Greater braking force will then be
required and brake pedal travel will be longer.
If necessary, depress the brake pedal with full
force.
Before towing away, make sure that the steer-
ing can be moved and is not locked.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehicle. Towing and tow-starting
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