lights MERCEDES-BENZ G-CLASS SUV 2008 Service Manual

Troubleshooting
216 Problem Possible cause/consequence Suggested solutions
<
The red seat belt warning
lamp lights up for 6 sec-
onds at most after starting
the engine. G
Risk of injury
The driver's seat belt is not fas-
tened. X
Fasten your seat belt ( Ypage 71).
The warning lamp goes out. G
Risk of injury
There are objects on the front-
passenger seat X
Remove the objects from the front-passenger seat and stow them
safely.
The warning lamp goes out. A
The yellow reserve fuel
warning lamp comes on
while the engine is run-
ning. The fuel level has fallen below the
reserve range. The operation of
the auxiliary heating* can no lon-
ger be guaranteed. X
Refuel at the nearest filling station. q
On diesel engine vehicles
the preglow indicator lamp
does not light up when the
key is in position 2. The pre-glow system is malfunc-
tioning. X
Visit a qualified specialist workshop immediately. 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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Troubleshooting
228 Auxiliary heating/ventilation*
Problem Possible cause/consequence Suggested solutions
The indicator lamp in the auxiliary
heating remote control lights up
orange. The remote control batteries are
almost discharged. X
Replace the remote control batteries (Y page 235).The indicator lamp in the auxiliary
heating remote control flashes
orange. The remote control batteries are
discharged. X
Replace the remote control batteries (Y page 235).Parking up the vehicle
Problem Possible cause/consequence Suggested solutions
The vehicle is to be left parked up
for longer than six weeks. Damage resulting from non-use
ma
y occur if the vehicle is parked
up for long periods. X
Visit a qualified specialist workshop and seek advice.
X Disconnect the battery (Y page 248).Practical advice
* optional
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Changing the batteries
234 Changing the batteries
Notes
It is advisable to have the batteries replaced
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre. G
Risk of poisoning
Batteries contain toxic and caustic sub-
stances. For this reason, keep batteries
away from children.
If a battery is swallowed, consult a doctor
immediately. H
Environmental note
Do not dispose of batteries with the house-
hold rubbish. They contain highly toxic sub-
stances.
Take discharged batteries to a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre, or to a special collection
point for old batteries. Key
Checking the batteries X
Press the jork button.
The batteries are in order if the battery
charge indicator lamp lights up briefly.
Changing the batteries You require two CR 2025 3 V cell batteries.
X
Remove the emergency key element from
the key (Y page 229). 1
Emergency key element
2 To release the battery tray
3 To pull out the battery tray
4 Battery tray X
Using emergency key element 1, press
the grey release catch in the opening in the
direction of arrow 2.
Battery tray 4is released.
X Pull battery tray 4out of the key in the
direction of arrow 3. 1
Batteries
2 Contact spring
X Remove old batteries 1from the battery
tray.
X Insert the new batteries underneath con-
tact spring 2with the positive terminal
facing upwards. Use a lint-free cloth to do
so. Practical advice
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Changing the bulbs
235
X
Push the battery tray back into the key
housing until the battery tray engages.
X Check the function of all key buttons on the
vehicle. Auxiliary heating* remote control
Checking the batteries X
Press the ONorOFF button.
The battery charge check lamp lights up
when you press the button:
R ON green
R OFF red
and then briefly orange.
If the batteries are discharged, the battery
check lamp only lights up in orange when
the buttons are pressed.
Changing the batteries You need two 12 V pin batteries. 1
Batteries
2 Battery cover
X Slide off battery cover 2.
X Remove old batteries 1.
X Insert the new batteries. Observe the plus
and minus signs in the remote control hous-
ing when doing so.
X Slide battery cover 2back onto the
remote control.
X Check the auxiliary heating functions on
the vehicle using the remote control. Changing the bulbs
Notes on changing bulbs
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that all bulbs function correctly at all times. G
Risk of injury
Bulbs and lamps can be very hot. You
should therefore allow them to cool down
before you change them. Otherwise, you
could be burned if you touch them.
Keep bulbs out of the reach of children.
Otherwise, they could damage them, for
example, and injure themselves.
Never use a bulb which has been dropped.
Such a bulb may explode and injure you.
H7 bulbs are pressurised and could explode
when you change them, particularly if they
are very hot. You should therefore wear eye
protection and gloves when you are chang-
ing them. G
Risk of injury
Xenon bulbs carry a high voltage. You could
get an electric shock and be seriously or
even fatally injured if you touch the electric
contacts on xenon bulbs. Therefore, never
remove the cover from xenon bulbs. Practical advice
* optional
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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
2384
Screws
5 Adjustment screws
X Remove screws 4.
i Only remove screws 4. Do not turn
adjustment screws 5. If adjustment screw
5 is turned, the front foglamp adjustment
must be checked at a qualified specialist
workshop, e.g. a Mercedes-Benz Service
Centre.
X Remove headlamp 3. 6
Bulb holder
X Lightly press bulb holder 6, turn it anti-
clockwise and pull it out. 7
Bulb
X Remove bulb 7from bulb holder 6.
X Insert the new bulb into bulb holder 6.X
Insert bulb holder 6and turn it clockwise.
X Insert headlamp 3.
X Replace and tighten screws 4.
X Position cover 2.
X Replace and tighten screws 1.
Changing the bulbs in the foglamp/cor-
nering light with foglamp function 1
Screws
2 Cover
3 Headlamps
X Switch off the lights.
X Remove screws 1.
X Remove cover 2. Practical advice
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Changing the bulbs
2394
Screws
5 Adjustment screw
X Remove screws 4.
i Only remove screws 4. Do not turn
adjustment screw 5. If adjustment screw
5 is turned, the front foglamp adjustment
must be checked at a qualified specialist
workshop, e.g. a Mercedes-Benz Service
Centre.
X Remove headlamp 3. 6
Bulb holder
X Hold headlamp 3.
X Lightly press bulb holder 6, turn it anti-
clockwise to the stop and pull it out. 7
Bulb X
Remove bulb 7from bulb holder 6.
X Insert the new bulb into bulb holder 6.
X Insert bulb holder 6into headlamp 3and
turn it clockwise to the stop.
X Insert headlamp 3.
X Replace and tighten screws 4.
X Position cover 2.
X Replace and tighten screws 1.
Replacing the turn signal lamps 1
Screws
2 Lens
X Switch off the lights.
X Remove screws 1.
X Remove lens 2. 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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Changing the bulbs
241
Changing the bulbs in the tail lamp/rear
foglamp 1
Screws
2 Lens
X Switch off the lights.
X Remove screws 1.
X Remove lens 2. 3
Bulb
X Lightly press bulb 3into 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.
Changing the bulbs in the licence plate
lamps X
Switch off the lights. 1
Screws
2 Bulb holder with lens
X Remove screws 1.
X Remove bulb holder 2. 3
Bulb Practical advice
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