2009 MERCEDES-BENZ GL SUV engine
[x] Cancel search: enginePage 217 of 309
Display messages
Possible causes/consequences and
X
X Solutions DISTRONIC - - - km/h
An activation condition for Distronic* is not fulfilled.
X
If conditions permit, drive faster than 30 km/h and store
the speed (Y page 119).
or
X Check the activation conditions for Dis-
tronic* (Y page 119). DISTRONIC Override
Distronic* is no longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. DISTRONIC inopera‐
tive
Distronic* is faulty or the display has failed.
X
Visit a qualified specialist workshop. DISTRONIC currently
unavaila‐
ble See
Owner's
Manual
Distronic* is deactivated and is temporarily inoperative if:
R
the Distronic* cover in the radiator grille is dirty.
R its function is impaired due to heavy rain or snow.
R the radar sensor system is temporarily inoperative, e.g. due
to electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the radar sensor system has not detected any vehicles or
stationary objects, e.g. traffic signs, for a long time.
R the system is outside the operating temperature range.
Distronic* becomes available again and the display message
disappears when:
R the dirt (e.g. slush) drops away while you are driving.
R the system detects that the sensors are fully available
again.
R the system is within the operating temperature range.
If the display message continues to be shown:
X Clean the Distronic* cover in the radiator grille
(Y page 203).
X Restart the engine. 214
Display
messagesPractical advice
* optional
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 214
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:59; WK
Page 220 of 309
Display messages
Possible causes/consequences and
X
X Solutions P To start
the
engine,
shift to
either P
or N You have attempted to start the engine with the transmission
in position
Ror D.
X Shift the automatic transmission to Por N. Depress
brake to
shift out
of position P
X
Depress the brake pedal. PRE-SAFE inopera‐
tive See
Owner's
Manual
G
Risk of injury
Important functions of PRE-SAFE ®
have failed. All other occu-
pant safety systems, e.g. airbags, remain available.
X Visit a qualified specialist workshop. Tyre pres‐
sure moni‐
tor inopera‐
tive
The tyre pressure monitor* is malfunctioning.
X
Have the tyre pressure monitor* and wheels checked at a
qualified specialist workshop. Tyre pres‐
sure moni‐
tor inopera‐
tive No
wheel sen‐
sors The fitted wheels do not have suitable tyre pressure sensors.
The tyre pressure monitor* is deactivated.
X
Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitor* is activated automatically after
driving for a few minutes. Tyre pres‐
sure moni‐
tor Wheel sen‐
sor miss‐
ing
The tyre pressure monitor* is not receiving signals from one
or more wheels because:
R
a wheel without a suitable tyre pressure sensor has been
fitted, e.g. the emergency wheel*.
R the battery on one of the wheel electronics unit is dis-
charged.
R a wheel electronics unit has malfunctioned.
A line is displayed in the multi-function display for the affected
tyre instead of the tyre pressure value.
X Have the tyre pressure monitor* and wheels checked at a
qualified specialist workshop.
If wheels with suitable tyre pressure sensors are fitted, the
tyre pressures appear in the multi-function display after
driving for a few minutes. Display
messages
217Practical advice
* optional
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 217 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:59; WK
Page 222 of 309
Display messages
Possible causes/consequences and
X
X Solutions Cruise
control - - - km/h A condition for activating cruise control has not been met.
X
Activate ESP ®
(Y page 52)
X If conditions permit, drive faster than 30 km/h and store
the speed (Y page 117). Symbol messages
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. Display messages
Possible causes/consequences and
X
X Solutions E The tailgate is open.
X
Close the tailgate. G
Risk of accident
Vehicles with an anti-theft alarm system*:
The bonnet is open.
X Stop immediately, paying attention to road and traffic con-
ditions.
X Close the bonnet. ; At least one door is open.
X
Close the doors. ? The engine fan is faulty.
X
If the coolant temperature is less than 120 †, you can
continue driving to the nearest qualified specialist work-
shop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop/start driving. Display
messages
219Practical advice
* optional
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 219 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:59; WK
Page 223 of 309
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
X164_AKB; 2; 3, en-GB
wobuchh,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 220
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:59; WK
Page 226 of 309
Display messages
Possible causes/consequences and
X
X Solutions 8 Diff.
lock sys‐
tem over‐
heated.
Wait
briefly. The differential locks are too hot and have been disengaged.
X
Drive on carefully.
X Allow the differential locks to cool down.
The differential locks reengage as soon as they have cooled
down. Ã inopera‐
tive DSR is deactivated due to a malfunction.
X
Have DSR checked at a qualified specialist workshop. 8 Stop vehi‐
cle Apply
parking
brake A gearshift process has been cancelled. LOW RANGE is in the
neutral position. There is no connection between the engine
and the drive wheels.
X
Pull over and stop the vehicle safely, paying attention to
road and traffic conditions.
X Depress the parking brake firmly. Do not continue driving
under any circumstances.
X Repeat the shift process. Å Consult
workshop
If
parked,
apply pk.
brake The LOW RANGE system is malfunctioning.
X
Do not exceed a maximum speed of 80 km/h.
X Firmly depress the parking brake to park.
X Have the vehicle checked at a qualified specialist work-
shop. Å max.
speed
70 km/h You have exceeded the maximum speed for the gearshift
process.
X
Drive more slowly.
The gearshift process is carried out. Å max.
speed
40 km/h You have exceeded the maximum speed for the gearshift
process.
X
Drive more slowly.
The gearshift process is carried out. Å Engage N
briefly You have reduced the vehicle speed, but the automatic trans-
mission is not in the
Nposition.
X Briefly shift the automatic transmission to position N.Å Shifting
process
cancelled
Reactivate The gearshift process has been cancelled.
X
Repeat the shift process. Display
messages
223Practical advice
X164_AKB; 2; 3, en-GB
wobuchh,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 223 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:18:00; WK
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
X164_AKB; 2; 3, en-GB
wobuchh,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 224
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:18:00; WK
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
X164_AKB; 2; 3, en-GB
wobuchh,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 228
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:18:00; WK
Page 232 of 309
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
* optional
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 229 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:18:00; WK