2008 MERCEDES-BENZ G-CLASS SUV brake

Troubleshooting
215Problem Possible cause/consequence Suggested solutions
3
The red brake system
warning lamp comes on
while the engine is run-
ning. G
Risk of accident
There is insufficient brake fluid in
the fluid reservoir. X
Do not continue driving under an y circumstances.
X Consult a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 194).
X Under no circumstances should you top up the brake fluid. This will
not rectify the fault. ±
The yellow engine diagnos-
tics warning lamp comes
on while the engine is run-
ning. Vehicles with a diesel engine: the
fuel tank has run dry. X
Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. There may be a malfunction:
R
in the fuel injection system
R in the exhaust system
R in the ignition system (on vehi-
cles with a petrol engine)
The emission limit values may be
exceeded and the engine may be
running in emergency mode. X
Have the vehicle checked as soon as possible at a qualified spe-
cialist workshop. The engine electronics are mal-
functioning. The engine power
output is reduced. X
Visit a qualified specialist workshop immediately.
X Do not drive at full throttle and do not exceed an engine speed of
2,500 rpm. The diesel particle filter* is full
and can no longer be regenerated
(self-cleaning). X
Have the diesel particle filter* checked at a qualified specialist
workshop as soon as possible. Practical advice
* optional
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Troubleshooting
217Warning tones
Problem Possible cause/consequence Suggested solutions
The alarm of the anti-theft warn-
ing system* is triggered. You have opened the vehicle
using the emergency key element
without deactivating the anti-
theft alarm system* first. X
Switch off the alarm (Y page 51).You hear a warning tone. A message appears in the multi-
function displa
y. X
Observe the messages in the multi-function display (Y page 194).You hear a warning tone. You are driving with the parking
brake applied. X
Release the parking brake. You hear a warning tone. You have opened the driver's
door without switching off the
lights first. X
Turn the light switch to MorU. You hear a warning tone.
G
Risk of injury
The driver or front passenger has
not fastened their seat belt X
Fasten your seat belt ( Ypage 71). 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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Changing the bulbs
237Bulb Type
1
Third brake
lamp
LED
15 2
Turn signal lamp PY 21 W (yellow)
Brake lamp/tail
lamp P 21/5 W
Tail lamp/park-
ing lamp W 5 W
3
Reversing lamp
4
Licence plate
lamp C 5 W (festoon)
5
Rear foglamp P 21 W
Before changing bulbs
Have the following bulbs changed at a quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre:
R
the additional turn signals in the exterior
mirrors
R the surround lighting bulbs in the exterior
mirrors R
the third brake lamp
R xenon bulbs
You can replace the following bulbs:
R side lamp and parking lamp
R foglamp/cornering light with foglamp func-
tion
R turn signal lamp (front)
R brake lamp/tail lamp
R reversing lamp
R rear foglamp
R tail lamp/parking lamp
R turn signal lamp (rear)
R licence plate lamp
Observe the following points:
R use only the bulb types specified here.
R to prevent a short-circuit, switch off the
lights before changing a bulb.
R only hold bulbs with a clean, lint-free cloth.
R do not work with wet or greasy fingers.
R if the new bulb still does not light up, con-
sult a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. i
Have the headlamp setting checked reg-
ularly at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Changing the front bulbs
Changing the bulbs in the side lamps
and parking lamps 1
Screws
2 Cover
3 Headlamps
X Switch off the lights.
X Remove screws 1.
X Lift up cover 2(arrow) and remove.
15 These bulbs must be replaced at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Practical advice
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Changing the bulbs
2403
Bulb
X Lightly press bulb 3, turn it anti-clockwise
and pull it out.
X Insert the new bulb and, applying slight
pressure, turn it clockwise until it engages.
X Fit lens 2.
X Replace and tighten screws 1.
i Do not fasten screws 1too tightly. Oth-
erwise, you could damage lens 2. Changing the rear bulbs
Changing the tail lamps X
Switch off the lights. 1
Screws
2 Lens
X Remove screws 1.
X Remove lens 2. 3
Turn signal lamp
4 Brake/tail lamp
5 Rear/parking lamp
X Lightly press the corresponding bulb into
the bulb holder, turn it anti-clockwise and
remove it from the bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise until it engages.
! When fitting the lens, make sure that the
seal is positioned correctly. 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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Jump-starting
251
X
Connect positive terminal clamp 1and
secure the cover.
X Connect negative terminal clamp 3.
X Connect breather hose 4. Make sure that
a cell cap is fitted between battery 2and
breather hose 4.
i If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:2
R set the time (Y page 106)
R reset the head restraints on the front
seats (Y page 61)
R reset the side windows ( Ypage 85) 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 Jump-starting may only be performed 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 with
batteries that have the same nominal volt-
age.
R Only use jump leads which are protected
against polarity reversal and which have a
sufficient cross-section and insulated ter-
minal clamps.
i Jump leads which are protected against
polarity reversal and further information
about jump-starting can be obtained from
any Mercedes-Benz Service Centre.
! Avoid repeated and lengthy starting
attempts. Only use the jump-starting pro-
cedure for the battery in the engine com-
partment. Do not use a rapid-charging device to start
the engine. G
Risk of injury
There is a risk of acid burns when jump-
starting 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
protective measures when handling batter-
ies. You will find these under "Battery" in
the index.
X Make sure that the two vehicles do not
touch.
X Apply the parking brake.
X Move the selector lever to P.
X Switch off all electrical consumers. Practical advice
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