2009 MERCEDES-BENZ GL SUV light

Display messages
Possible causes/consequences and
X
X Solutions ESP unavaila‐
ble See
Owner's
Manual
G
Risk of accident
ESP ®
and therefore also PRE-SAFE ®
are temporarily unavail-
able. The self diagnosis function might not be complete, for
example. BAS has also been deactivated.
X Carefully drive a short, gently winding stretch of road at a
speed above 20 km/h.
If the display message disappears, ESP ®
is available again. G
Risk of accident
ESP ®
and therefore also BAS and PRE-SAFE ®
are unavailable
due to undervoltage.
The brake system continues to function normally, but without
the functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. If the display message is shown during the journey and the
d
warning lamp is flashing, then 4ETS (Electronic Traction
System) is deactivated. Otherwise, the brakes on the drive
wheels could overheat.
X Let the brakes cool down until the display message disap-
pears and the dwarning lamp goes out.
4ETS is activated again. ESP inopera‐
tive See
Owner's
Manual
G
Risk of accident
ESP ®
and therefore also Brake Assist and PRE-SAFE ®
are
unavailable due to a malfunction. The dwarning lamp also
lights up in the instrument cluster.
The brake system continues to function normally, but without
the functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. Select
position P only when
vehicle
is at a
standstill The vehicle is moving.
X
Pull over and stop the vehicle safely, paying attention to
road and traffic conditions.
X Move the selector lever to P.Vehicle not in
position P The driver's door is open and the automatic transmission is
in position R,Nor D.
X Move the selector lever to P.
X Engage the parking brake. Display
messages
215Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions ° Malfunc‐
tion The level control has malfunctioned.
X
Drive as appropriate for the current vehicle level, but do not
exceed 80 km/h.
X Make sure that there is sufficient ground clearance.
X Have the vehicle checked at a qualified specialist work-
shop. ° Rising
20 km/h max. The vehicle is being adjusted to off-road level 3. The display
message indicates the maximum speed allowed for off-road
level 3.
X
Do not exceed a maximum speed of 20 km/h. ° 20 km/h max. You are driving in off-road level 3. The display message indi-
cates the maximum speed allowed for off-road level 3.
X
Do not exceed a maximum speed of 20 km/h. Æ being low‐
ered
20 km/h max. The vehicle is being lowered from off-road level 3 to off-road
level 2. The display message indicates the maximum speed
allowed for off-road level 3.
X
Do not drive faster than 20 km/h until the vehicle has
reached off-road level 2. Æ Bring
speed
below
20 km/h
G
Risk of accident
You are exceeding the speed permissible for the selected off-
road level.
X Do not exceed a maximum speed of 20 km/h.
X Adjust your driving style to the altered handling character-
istics.
X Only make slight steering movements and avoid fast steer-
ing movements.
X Be aware of the altered handling characteristics. 8 Locking
system
inopera‐
tive Con‐
sult work‐
shop The differential locks are faulty.
X
Do not exceed a maximum speed of 80 km/h.
X Have the vehicle checked at a qualified specialist work-
shop. 222
Display
messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions D Power
steering
malfunc‐
tion See
Owner's
Manual
G
Risk of accident
There is no power assistance for the steering. You will need
to use more force to steer.
X Check whether you are able to apply the extra force
required.
X If you are able to steer safely: carefully drive on to a
qualified specialist workshop.
X If you are unable to steer safely: do not drive on. Contact
the nearest qualified specialist workshop. b Left-hand
Cornering
light
or
Right-
hand Cor‐
nering
light
The left-hand or right-hand cornering lamp* is faulty.
X
Change the bulb ( Ypage 254). b Left-hand
dipped
beam
or
Right-
hand
dipped
beam The left-hand or right-hand dipped-beam headlamp is faulty.
X
Halogen headlamp: replace the bulb (Ypage 254).
X Bi-xenon headlamp*: visit a qualified specialist workshop. b AUTO
lights
inopera‐
tive The light sensor is faulty.
X
Visit a qualified specialist workshop. b Trailer
Left-hand
turn sig‐
nal
or
Trailer
Right-
hand turn
signal The left-hand or right-hand trailer turn signal lamp is faulty.
X
Change the bulb. b Trailer
brake lamp The trailer brake lamp is faulty.
X
Change the bulb. Display
messages
225Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions b Main
beam, left
or
Main
beam,
right The left-hand or right-hand main beam headlamp is faulty.
X
Halogen headlamp: replace the bulb (Ypage 254).
X Bi-xenon headlamp*: visit a qualified specialist workshop. b Licence
plate
lamp, left
or
Licence
plate
lamp,
right The left-hand or right-hand licence plate lamp is faulty.
X
Change the bulb ( Ypage 254). b Switch
off lights The lights are still switched on when you leave the vehicle.
X
Turn the light switch to $orÃ.
or
X If the rear foglamp is switched on: press the light switch in
to the stop. b Front fog‐
lamp, left
or
Front fog‐
lamp,
right The front left-hand or right-hand foglamp is faulty.
X
Visit a qualified specialist workshop. b Rear left-
hand fog‐
lamp
or
Rear
right-
hand fog‐
lamp The left-hand or right-hand rear foglamp is faulty.
X
Change the bulb ( Ypage 259). b Parking
lamp,
front left
or
Parking
lamp,
front
right The front left-hand or right-hand parking lamp is faulty.
X
Change the bulb ( Ypage 254). Display
messages
227Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions 4 Engine
oil level
Stop car,
turn
engine off The oil level is too low. There is a risk of engine damage.
X
Pull over and stop the vehicle safely, paying attention to
road and traffic conditions.
X Switch off the engine.
X Top up the engine oil and check the level (Y page 176).4 Engine
oil level
Reduce
oil level
You have added too much engine oil
33
. There is a risk of dam-
age to the engine or to the catalytic converter.
X Siphon off excess engine oil until it is at the specified level.
Observe the legal requirements. 4 Engine
oil level
Consult
workshop The engine oil level has dropped to a critical level or the
measuring system is malfunctioning.
33
X Check the engine oil level ( Ypage 176).
If the engine oil level is OK:
X Visit a qualified specialist workshop.
If the engine oil level is not OK:
X Top up the engine oil.
X If the warning message disappears: consult a qualified spe-
cialist workshop.
X If the warning message does not disappear: keep the vehi-
cle at a standstill and notify a qualified specialist workshop. 4 Engine
oil level
cannot be
measured
The measuring system is malfunctioning
33
.
X Visit a qualified specialist workshop. h Tyre pres‐
sure Cau‐
tion,
tyre
defect
G
Risk of accident
The tyre pressure in one or more tyres has dropped suddenly.
The affected wheel is highlighted in the tyre pressure display
of the tyre pressure monitor*.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Repair the faulty tyre or replace the wheel ( Ypage 262). 33
Only for certain countries. Display
messages
229Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions h Tyre pres‐
sure
Check
tyres
G
Risk of accident
The tyre pressure in one or more tyres has dropped signifi-
cantly. The affected wheel is highlighted in the tyre pressure
display of the tyre pressure monitor*.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Check the tyres.
X If necessary, repair any defective tyres or change the wheel
(Y page 262).
X Check the tyre pressure. If necessary, correct the tyre pres-
sure (Y page 180).
The display message will disappear automatically after you
have been driving for a few minutes with the corrected tyre
pressure. h Please
correct
tyre pres‐
sure(s)
Vehicles with tyre pressure monitor*: the pressure is insuffi-
cient in at least one of the tyres or the pressure difference
between the individual tyres is too great.
X
Check the tyre pressures at the next opportunity. If neces-
sary, correct the tyre pressure (Y page 180).+ Change
key bat‐
teries
The KEYLESS GO* key batteries are discharged.
X
Change the batteries ( Ypage 253). + Key does
not
belong to
vehicle You have put the wrong key in the ignition lock.
X
Use the correct key. 230
Display
messagesPractical advice
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Troubleshooting
Points to remember
G
Risk of accident and injury
The operating safety of your vehicle could be compromised if service work is carried out improp-
erly. You could lose control of the vehicle and cause an accident. Safety systems may also not
be able to protect you or others as intended.
Always have maintenance work carried out at a qualified specialist workshop. The workshop must
have 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. Warning and indicator lamps in switches and buttons
Problem
Possible causes/consequences and
X
X Solutions One or all of the indica-
tor lamps in the seat
ventilation* button are
flashing. The seat ven-
tilation* has switched
off automatically. The on-board voltage is too low, because too many consumers are
switched on.
X Switch off consumers that are not required, e.g. rear window
heating or interior lighting.
Once the battery is sufficiently charged, the seat ventilation*
will switch back on automatically. One or all of the indica-
tor lamps in the seat
heating* button are
flashing. The seat heat-
ing* has switched off
automatically. The on-board voltage is too low, because too many consumers are
switched on.
X Switch off consumers that are not required, e.g. rear window
heating or interior lighting.
Once the battery is sufficiently charged, the seat ventilation*
will switch back on automatically. The steering wheel
heating* indicator lamp
on the lower left lever of
the steering column is
flashing. The on-board voltage is too low, because too many consumers are
switched on. The steering wheel heating* has switched off auto-
matically.
X Switch off consumers that are not required, e.g. rear window
heating or interior lighting.
Once the battery is sufficiently charged, the steering wheel
heating* will switch back on automatically. Troubleshooting
233Practical advice
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Problem
Possible causes/consequences and
X XSolutions The indicator lamp in
the
Á button on the
2-zone automatic air
conditioning
Thermatic/multi-zone
intelligent automatic
air conditioning
Thermotronic* control
panel is lit. The cooling
system cannot be
switched on. Cooling has been deactivated due to a malfunction.
X
Visit a qualified specialist workshop. The indicator lamp in
the
ª rear-window
heating button is flash-
ing. The rear-window
heating has switched
off prematurely or can-
not be switched on. The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e.g. seat heating*
or interior lighting.
Once the battery is sufficiently charged, the rear window heating
will switch back on automatically. Vehicles with auto-
matic child seat recog-
nition on the front-
passenger seat*:
The
4 PASSENGER
AIRBAG OFF warning
lamp on the centre con-
sole is lit. A special Mercedes-Benz child seat with automatic child seat rec-
ognition has been fitted to the front-passenger seat. The front-
passenger airbag has therefore been disabled as desired.
G
Risk of injury
There is no child seat fitted to the front-passenger seat. The auto-
matic child seat recognition* is malfunctioning.
X Remove electronic equipment from the front-passenger seat,
for example:
R
notebook
R mobile phone
R cards with transponders, e.g. ski passes or access passes
If the 4 PASSENGER AIRBAG OFF warning lamp is still lit:
X Visit a qualified specialist workshop. 234
TroubleshootingPractical advice
* optional
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