2009 MERCEDES-BENZ GL SUV ESP
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Display messages
Possible causes/consequences and
X
X Solutions # The battery is not being charged.
Possible causes are:
R
a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise over-
heat.
X Switch off the engine.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Visit a qualified specialist workshop. # Battery/
Alterna‐
tor Stop
vehicle The battery is faulty.
X
Pull over and stop the vehicle safely, paying attention to
road and traffic conditions. Do not continue driving under
any circumstances.
X Consult a qualified specialist workshop. # Brake wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. J EBV, ABS,
ESP inop‐
erative
See Own‐
er's Man‐
ual
G
Risk of accident
EBV (Electronic Brake Force Distribution), ABS (Anti-lock
Brake System), ESP ®
(Electronic Stability Program) and there-
fore PRE-SAFE ®
are unavailable due to a fault. BAS (Brake
Assist) is also deactivated.
The brake system continues to function normally, but without
the functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 220
Display
messagesPractical advice
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Page 225 of 309
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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Page 227 of 309
Display messages
Possible causes/consequences and
X
X Solutions ? Coolant
Stop car,
turn
engine off The coolant is too hot.
X
Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Make sure that the air supply to the radiator is not blocked,
e.g. by slush.
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display
(Y page 100).
X If the temperature increases again, visit a qualified special-
ist workshop immediately. The poly-V-belt may have torn.
X
Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise over-
heat.
X Switch off the engine.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display
(Y page 100).
X Visit a qualified specialist workshop. + Top up
coolant
See Own‐
er's Man‐
ual The coolant level is too low.
X
Top up the coolant, observing the warning notes before
doing so (Y page 177).
X Have the engine cooling system checked at a qualified spe-
cialist workshop if the coolant needs topping up more often
than usual. 224
Display
messagesPractical advice
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Page 229 of 309
Display messages
Possible causes/consequences and
X
X Solutions b Trailer
Left-hand
tail lamp
or
Trailer
Right-
hand tail
lamp The left-hand or right-hand trailer tail lamp is faulty.
X
Change the bulb. b Turn sig‐
nal, rear
left
or
Turn sig‐
nal, rear
right The rear left-hand or right-hand turn signal is faulty.
X
Change the bulb ( Ypage 254). b Turn sig‐
nal in
mirror,
left
or
Turn sig‐
nal in
mirror,
right The turn signal in the left-hand or right-hand exterior mirror
is faulty. The display message will only appear if all LEDs have
failed.
X
Visit a qualified specialist workshop. b Turn sig‐
nal,
front left
or
Turn sig‐
nal,
front
right The front left-hand or right-hand turn signal is faulty.
X
Change the bulb ( Ypage 254). b Left-hand
brake lamp
or
Right-
hand
brake lamp The left-hand or right-hand brake lamp is faulty.
X
Change the bulb ( Ypage 254). b 3rd brake
lamp The third brake lamp is faulty. The display message will only
appear if all LEDs have failed.
X
Visit a qualified specialist workshop. 226
Display
messagesPractical advice
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Page 231 of 309
Display messages
Possible causes/consequences and
X
X Solutions b Reversing
lamp, left
or
Reversing
lamp,
right The left-hand or right-hand reversing lamp is faulty.
X
Change the bulb ( Ypage 254). b Left-hand
tail lamp
or
Right-
hand tail
lamp The left-hand or right-hand tail lamp is faulty.
X
Change the bulb ( Ypage 254). b Left day‐
time driv‐
ing lamp
or
Right
daytime
driving
lamp The left or right daytime driving lamp is faulty.
X
Visit a qualified specialist workshop. ¸ Replace
air
cleaner
element
The engine air filter is dirty and must be replaced.
33
X Visit a qualified specialist workshop. 4 Check
engine
oil level
when next
refuelling The engine oil level has dropped to a critical level.
X
Check the engine oil level ( Ypage 176).
X If necessary, top up the engine oil.
X Have the engine checked for leaks if the engine oil needs
topping up more often than usual. 4 Add
1 litre
engine
oil when
next refu‐
elling
The oil level is too low
33
.
X Check the engine oil level ( Ypage 176).
X If necessary, top up the engine oil.
X Have the engine checked for leaks if the engine oil needs
topping up more often than usual. 33
Only for certain countries. 228
Display
messagesPractical advice
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Page 233 of 309
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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Page 235 of 309
Display messages
Possible causes/consequences and
X
X Solutions & Inopera‐
tive
Refuel
vehicle The fuel level in the fuel tank is too low. The auxiliary heat-
ing* cannot be switched on.
X
Refuel at the nearest filling station. & inopera‐
tive See
Owner's
Manual
The auxiliary heating* is temporarily malfunctioning or is
defective.
X
When the vehicle is on a level surface and the engine has
cooled down, make up to four attempts to switch on the
auxiliary heating*, waiting several minutes between each
attempt.
X If the auxiliary heating* does not switch on, visit a qualified
specialist workshop. C There is only a small amount of fuel in the fuel tank.
X
Refuel at the nearest filling station. 8 Reserve
fuel The fuel level has fallen below the reserve range. The opera-
tion of the auxiliary heating* can no longer be guaranteed.
X
Refuel at the nearest filling station. ~ Please
enter PIN
You have not yet logged on to your mobile phone
*.
X Enter the PIN for the SIM card. ~ Bluetooth
ready The Bluetooth connection between your mobile phone and
the audio system or COMAND APS* is not activated.
X
If desired, activate the Bluetooth connection between the
mobile phone and the audio system or COMAND APS* (see
separate operating instructions). ~ No tele‐
phone
inserted
Your mobile phone is not inserted in the bracket*.
X
Insert the mobile phone into the bracket* ( Ypage 164). ¥ Top up
washer
fluid The washer fluid level has dropped to approximately
⅓of the
total reservoir capacity.
X Top up the windscreen washer fluid (Y page 178).232
Display messagesPractical advice
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Page 238 of 309
Warning and indicator lamps in the instrument cluster
Problem
Possible causes/consequences and
X
X Solutions !
The yellow ABS
warning lamp is
lit while the
engine is run-
ning. G
Risk of accident
ABS (Anti-lock Brake System) is deactivated due to a fault. ABS
(Anti-lock Brake System) and ESP ®
(Electronic Stability Program)
and also PRE-SAFE ®
are therefore temporarily unavailable.
The brake system continues to function normally, but without the
functions listed above. Therefore, the wheels could lock if you
brake hard.
X Observe the additional messages in the multi-function display
(Y page 211).
X Drive on carefully.
X Visit a qualified specialist workshop. !
The yellow ABS
warning lamp is
lit while the
engine is run-
ning. G
Risk of accident
The on-board voltage is too low. ABS has been deactivated due to
undervoltage.
Therefore, ESP ®
, BAS and PRE-SAFE ®
are also deactivated.
The brake system continues to function normally, but without the
functions listed above. Therefore, the wheels could lock if you
brake hard.
X Switch off consumers that are not required, e.g. rear window
heating or interior lighting.
ABS will be available again as soon as the vehicle's electrical
system voltage increases. d
J
!
The yellow ESP
®
warning lamp,
the red brake
system warning
lamp and the
yellow ABS
warning lamp
light up while the
engine is run-
ning. A warning
tone also
sounds. G
Risk of accident
EBV is faulty. ABS, Brake Assist, ESP ®
and PRE-SAFE ®
are there-
fore no longer available. The brake system continues to function
normally, but without the functions listed above. Therefore, the
wheels could lock if you brake hard.
X Drive on carefully.
X Visit a qualified specialist workshop. Troubleshooting
235Practical advice
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