ignition MERCEDES-BENZ G-CLASS SUV 2008 Manual PDF

Troubleshooting
227Soft top switch*
Problem Possible cause/consequence Suggested solutions
The soft top will not open or
close. The soft top closing procedure
has been interrupted. X
Wait five seconds and repeat the procedure. The fuse is faulty. X
Check the fuse and replace it if necessary (Y page 255). The hydraulic pump has overhea-
ted. X
Wait a few minutes and repeat the procedure. The control unit is malfunctioning
because the closing procedure
has been interrupted. X
Turn the key to position 0and back to 2in the ignition lock.
X Attempt to close the soft top again.
If you are still unable to close it electrically:
X Close the soft top manually
(Y page 232).
X Have the system checked at a qualified specialist workshop. Practical advice
* optional
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Locking/unlocking in an emergency
229Locking/unlocking in an emergency
Emergency key
If the vehicle can no longer be locked or
unlocked with the key, use the 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 51).
There are several ways to turn off the alarm:
X Press the korj button on the key.
or
X Insert the key into the ignition lock.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the
key in the ignition lock. Releasing and removing the emergency
key element 1
Release catch
2 Emergency key element
X Push release catch 1in the direction of
the arrow and at the same time remove
emergency key element 2from the key. Unlocking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key:
X Remove the emergency key element from
the key (Y page 229).
Unlocking the driver's door X
Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Turn the emergency key element anti-
clockwise.
The door is unlocked.
X Turn the emergency key element back and
remove it.
Unlocking the rear door (station wagon) X
Insert the emergency key element into the
driver's door lock as far as it will go.
X Turn the emergency key element anti-
clockwise.
The door is unlocked.
X Turn the emergency key element back and
remove it. Practical advice
* optional
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Locking/unlocking in an emergency
232 Operating the soft top in emergencies
(Cabriolet) G
Risk of injury
Remove any wristwatches and jewellery
such as rings or bracelets. They could oth-
erwise get caught, injure you and damage
the vehicle.
Make sure nobody can be trapped or
injured by parts, such as the soft top link-
age, when opening or closing the soft top.
Always grip the soft top at the indicated
gripping points for the emergency opera-
tion of the soft top.
Get a second person to help you when
attempting to open/close manually.
Observe the notes on the convertible soft top
in the "Operation" section (Y page 133).
X Move the selector lever to P.
X Apply the parking brake.
X Remove the key from the ignition lock.
X Fold down the raised sun visors. 1
Release lever left
2 Release lever right
X Swing release levers 1downwards
(arrows).
X Open the front-passenger door. 3
Door seal
4 Side trim panel X
Pull back door seal 3.
X Remove right-hand trim panel 4. 5
Hexagon drive (emergency valve)
X Turn hexagon drive 5using the box span-
ner (vehicle tool kit) as far as it will go in the
direction of the arrow. Practical advice
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Replacing the wiper blades
242
X
Remove bulb 3from bulb holder 2.
X Insert the new bulb.
X Insert socket 2.
X Replace and tighten screws 1. Replacing the wiper blades
Replacing the wiper blades
G
Risk of accident
The windscreen will not longer be properly
wiped if the wiper blades are worn. This
could prevent you from observing the traffic
conditions, thereby causing an accident.
Replace the wiper blades twice a year, ide-
ally in spring and autumn. G
Risk of accident
The wiper arms could start moving and
cause an injury if you leave the windscreen
wipers switched on.
Remove the key from the ignition lock
before replacing the wiper blades.
! Under no circumstances should you open
the bonnet when a wiper arm is folded away
from the windscreen. Otherwise, you could
damage the bonnet.
Place wiper arms on the windscreen care-
fully if they do not have a wiper blade fitted.
They may otherwise damage the wind-
screen. !
Make sure that you touch only the wiper
arm of the windscreen wiper to avoid dam-
aging the windscreen wiper blades.
Removing X
Remove the key from the ignition lock.
X Fold the wiper arm away from the wind-
screen until it engages.
X Position the wiper blade at right angles. 1
Locking spring
2 Wiper arm
3 Wiper blade
4 Hinge piece Practical advice
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Flat tyre
243
X
Press locking spring 1.
X Slide wiper blade 3with hinge piece 4
from wiper arm 2.
Fit ting 1
Locking spring
2 Wiper arm
3 Wiper blade
4 Hinge piece
X Slide the new wiper blade 3with the
recess onto wiper arm 2.
X Engage locking spring 1into the end of
the wiper arm. X
Make sure that wiper blade 3is seated
correctly.
X Fold wiper arm 2back onto the wind-
screen. Flat tyre
Preparing the vehicle
X Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Deactivate the automatic door locking
(Y page 108).
X Position the wheels in the straight-ahead
position.
X Engage the steering wheel lock.
X Apply the parking brake.
X Move the selector lever to P.
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area whilst a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Switch off the engine.
X Remove the key from the ignition lock.
X Get out of the vehicle. Practical advice
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Battery
248 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 pre-
vent vehicle occupants from suffering acid
burns should the battery be damaged in the
event of an accident.
To prevent acid burns, observe the follow-
ing safety notes when handling batteries:
R Do not lean over batteries.
R Do not place any metal objects on a bat-
tery. You could otherwise cause a short
circuit and the battery's highly flammable
gas mixture could ignite.
R Make sure that you do not create an elec-
trostatic charge, e.g. by wearing syn-
thetic clothing or as a result of friction on
fabrics. Therefore, you should not pull or
slide the battery over carpets or other
synthetic materials.
R Never touch the battery first. To dis-
charge 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 elec-
trostatic charge or due to flying sparks.
! Switch off the engine and remove the key
before disconnecting or removing the ter-
minal clamps from the battery. You may
otherwise destroy electronic components,
such as the alternator.
! Have the starter battery checked and, if
necessary, replaced at a qualified specialist
workshop, e.g. a Mercedes-Benz Service
Centre, every two years or at least every
20,000 km.
i Mercedes-Benz recommends that you
have all work involving the battery, e.g.
removing, charging and replacing, carried
out at a qualified specialist workshop, e.g.
a Mercedes-Benz Service Centre.
The battery is located in the vehicle interior
under a cover in the rear footwell. 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 the brake pedal travel will
be longer. If necessary, depress the
brake pedal with maximum force.
R you will no longer be able to turn the key
in the ignition lock
R the selector lever is locked in position P
! Always disconnect the battery in the
order described below. Never swap the ter-
minal clamps. You may otherwise damage
the vehicle electronics.
X Apply the parking brake.
X Move the selector lever to P.
X Switch off all electrical consumers.
X Turn the key to 0and remove it. Practical advice
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Battery
250 Removing the battery
X Disconnect the battery ( Ypage 248).
X Unscrew the battery holder that stops the
battery from slipping.
X Remove the battery. 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 may 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 when 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
charging 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.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while it is still installed. Otherwise, the vehi-
cle's electronic system may be damaged.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
X Charge the battery. Observe the notes in
the operating instructions for your battery
charger.
or
X Have the battery charged at a qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre.
X Refit the charged battery.
Carry out the steps described in the
"Removing the battery" section
(Y page 250) in reverse order. Reconnecting the battery
! Always reconnect the battery in the
sequence described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers.
X Make sure that the key is not in the ignition
lock. 1
Positive terminal (under cover)
2 Battery
3 Negative terminal clamp
4 Breather hose Practical advice
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Towing and tow-starting
252
The jump-starting terminals are on the left-
hand side in the engine compartment when
viewed in the direction of travel. 1
Cover
2 Positive terminal (+)
3 Negative terminal (-)
X Lift up the cover of positive terminal 2on
your own vehicle.
X Connect positive terminal 2on your vehi-
cle to positive terminal of the donor battery
using the jump lead, beginning with your
own battery.
X Start the engine of the donor vehicle and
run it at idling speed.
X Connect negative terminal 3of the donor
battery to negative terminal of your vehi- cle's battery using the jump lead, connect-
ing the jump lead to the donor battery first.
X Start the engine.
X Electrical consumers can be switched on
again. Do not switch the lights on, however,
as this will overload the battery.
X Remove the jump lead from the negative
terminals 3first, and then from the posi-
tive terminals 2, 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 voltage sup-
ply or the vehicle's electrical system.
The electric power steering and the brake
force booster do not work when the engine
is not running. Greater braking force will
then be required and brake pedal travel will
be longer. If necessary, depress the brake
pedal with full force.
Do not tow the vehicle if the key cannot be
turned in the ignition lock. If this is the case,
the steering is locked and the vehicle can-
not be steered.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehi-
cle.
It is better to have the vehicle transported
than to have it towed. Practical advice
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Towing and tow-starting
253
When towing, observe the legal requirements
in all countries concerned.
!
When towing, pull away slowly and with-
out jerking. If the tractive power is too high,
the vehicles could be damaged.
! You may tow the vehicle for a maximum
of 50 km. A towing speed of 50 km/h must
not be exceeded.
With towing distances over 50 km, the
entire vehicle needs to be lifted up and
transported.
! Only secure the tow cable or towing bar
to the towing eyes. You may otherwise
damage the vehicle.
R Vehicles with an automatic transmission
must not be tow-started.
R If the transfer case can be shifted into neu-
tral N, you can tow the vehicle.
R If the transfer case cannot be shifted into
neutral N, you can tow the vehicle with one
axle raised. Please bear the following in
mind: -
remove the propeller shaft between the
transfer case and the rolling axle.
- turn the key to position 1in the ignition
lock.
R If the engine does not start, try jump start-
ing (Y page 251).
R If it is not possible to jump-start the vehicle,
have it towed to the nearest qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre.
R Before towing the vehicle, make sure that
the battery is connected and charged. Oth-
erwise:
- you cannot switch on the ignition
- you cannot move the selector lever to N
i Switch off the automatic locking feature
before the vehicle is towed (Y page 108).
You could otherwise be locked out when
pushing or towing the vehicle. Towing eye
Towing eye, front The vehicle is equipped with two towing eyes.
These are located at the front, under the
bumper.
1
Example: front towing eye, left-hand side Practical advice
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Towing and tow-starting
254
Towing eye, rear The rear towing eye is located under the
bumper, on the left-hand side when viewed in
the direction of travel. 1
Towing eye Towing the vehicle
! You may tow the vehicle for a maximum
of 50 km. A towing speed of 50 km/h must
not be exceeded.
With towing distances over 50 km, the
entire vehicle needs to be lifted up and
transported. X
Turn the key to position 2in the ignition
lock.
X Shift the transfer case to neutral position
N (Y page 92).
X Move the selector lever to N.
i The transmission can only change gear
when the battery has sufficient charge.
If you cannot move the selector lever to
N, you must remove the propellor shafts to
the driven axles. Transporting the vehicle
The towing eyes can be used to pull the vehi-
cle onto a trailer or transporter for transport-
ing purposes.
! Only lash the vehicle down by the wheels
or wheel rims, not by parts of the vehicle
such as axle or steering components. The
vehicle could otherwise be damaged.
X Turn the key to position 2in the ignition
lock.
X Move the selector lever to N.
X Shift the transfer case to neutral position
N (Y page 92). Recovering a vehicle that has become
stuck
Take great care when recovering a vehicle
whose drive wheels have become embedded
in loose earth or mud, particularly if the vehi-
cle is laden.
When recovering the vehicle do not use jerky
movements and do not pull it at an angle. The
chassis could otherwise be damaged.
Never attempt to recover a vehicle with a
trailer attached.
Pull out the vehicle backwards, if possible
using the tracks it made when it became
stuck. Towing in the event of malfunctions
Engine damage, gear damage or electri-
cal faults X
Move the selector lever to N(Y page 90).
X Change gear into neutral N(Y page 92).
In the event of damage to the transfer
case Have the propeller shafts between the axles
and the transfer case removed.Practical advice
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