MERCEDES-BENZ GL550 2008 X164 Owner's Manual

450 Practical hints
What to do if …
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may
appear in the multifunction display.
For your convenience the messages are
divided into two sections:

Text messages (page 451)

Symbol messages (page 466)
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Visit an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
iSwitching on the ignition causes all
instrument cluster lamps (except high beam
headlamp indicator lamp, and turn signal
indicator lamps unless activated) as well as the
multifunction display to come on. Make sure the
lamps and multifunction display are in working
order before starting your journey.
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451 Practical hints
What to do if …
Text messages
Display messagePossible cause/consequencePossible solution
ABSABS, ESP Inoperative
See Operator’s ManualThe ABS and the ESP® have been
switched off due to a malfunction.
The BAS is also switched off.
The brake system is still functioning
normally but without the ABS avail-
able.Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
Failure to follow these instructions increases
the risk of an accident.
ABS, ESP Unavailable
See Operator’s ManualThe ABS and the ESP® have been
switched off because of insufficient
power supply. The charging voltage
has fallen below 10 volts.
The BAS is also switched off.
The brake system is still functioning
normally but without the ABS
available.When the voltage is above this value again, the
ABS is operational again and the message in
the multifunction display should disappear.
If the message in the multifunction display
does not disappear:
Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
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452 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
ABSUnavailable
See Operator’s ManualThe self-diagnosis has not yet been
completed yet.The display will clear after driving a
short distance at a vehicle speed of
above 12 mph (20 km/h).
Cruise Control And
SPEEDTRONICInoperativeThe cruise control is malfunctioning.Have cruise control checked by an
authorized Mercedes-Benz Light
Truck Center.
Cruise Control––– MPHYou have attempted to set a speed
while driving below 20 mph
(30 km/h).Accelerate to a speed exceeding
20 mph (30 km/h) and set the
speed (
page 255).
The ESP® is switched off.Switch on the ESP® (page 103).
The automatic transmission is set to
positionP, R, orN.Set the automatic transmission to
positionD (
page 191).
The vehicle is secured with the
parking brake.Release the parking brake
(
page 59).
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453 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
DISTRONIC––– MPHYou have attempted to set a speed
while driving below 20 mph
(30 km/h).Accelerate to a speed exceeding 20 mph
(30 km/h) and set the speed (
page 260).
The ESP® is switched off.Switch on the ESP® (page 106).
The automatic transmission is set to
positionP, R, orN.Set the automatic transmission to
positionD (
page 191).
The vehicle is secured with the
parking brake.Release the parking brake (page 59).
InoperativeThe Distronic* or the Distronic*
display are malfunctioning.Have the system checked by an authorized
Mercedes-Benz Light Truck Center.
OverrideYou have accelerated. The
Distronic* has switched off.Stop accelerating.
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454 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
DISTRONICAvailable AgainDistronic* had been deactivated and
is available again.Activate Distronic* (page 266).
Currently Unavailable
See Operator’s ManualDistronic* is deactivated because
the functionality is impaired by
external interferences, e.g.
high-frequency sources such as toll
stations, speed measuring systems
etc.Leave the area of the external interference.
Activate Distronic* again (page 266),
when the message
DISTRONIC Available
Again
appears.
Distronic* is deactivated because
the Distronic* sensor has not
sensed any other vehicles or
objects, e.g. road sign or such, for a
long time.Try to activate Distronic* again
(
page 266), when the message
DISTRONIC Available Again appears.
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455 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
DISTRONICCurrently Unavailable
See Operator’s ManualDistronic* is deactivated because

the Distronic* cover in the
radiator grille is dirty

the functionality is impaired by
heavy precipitation or fog
Clean the Distronic* cover in the radiator
grille (
page 430).
Restart the vehicle.
Distronic* becomes operational again without
the engine being restarted when

dirt on the radiator grille has fallen off while
driving (e.g. slush or snow)

the system recognizes full sensor
availability due to lessening rain or because
the road is drying, for example

the message in the multifunction display
disappears
You can then operate Distronic* as usual again.
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456 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Depress brake
to shift out of P.You have tried to shift the automatic
transmission into positionD,R orN
using the gear selector lever without
depressing the brake pedal.Depress the brake pedal.
Door Open
Vehicle Not In ParkYou have opened the driver’s door
and the automatic transmission is
still in positionD,R orN.Before you leave the vehicle, make sure
that the automatic transmission is set to
positionP and that the parking brake is
engaged.
Drive to workshop
without
shifting gears.The automatic transmission cannot
be shifted out of the set position be-
cause of a malfunction.If the automatic transmission is set to
positionD:
Without changing the automatic transmis-
sion from positionD, drive to an authorized
Mercedes-Benz Light Truck Center.
If the automatic transmission is set to
positionN,R orP:
Do not drive.
Contact an authorized Mercedes-Benz Light
Truck Center.
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457 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
ESPInoperative
See Operator’s ManualIn addition, the yellow ESP® warning
lampv comes on.
The ESP
® has detected a malfunc-
tion and switched off.
The ABS may still be operational.
Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
Failure to follow these instructions increases
the risk of an accident.
In addition, the yellow ESP® warning
lampv comes on.
The ESP
® or the ESP® display is
malfunctioning.
Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
Failure to follow these instructions increases
the risk of an accident.
In addition, the yellow ESP® warning
lampv comes on.
The ESP
® is deactivated because of
a malfunction or interrupted power
supply.
Continue driving with added caution.
Contact an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Failure to follow these instructions increases
the risk of an accident.
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458 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
ESPUnavailable
See Operator’s ManualThe ESP® was deactivated because
of insufficient power supply. The
charging voltage has fallen below
10 volts.
The brake system is still functioning
normally but without the ESP
®
available.
When the voltage is above this value again, the
ESP® is operational again and the message in
the multifunction display should disappear.
If the message in the multifunction display does
not disappear:
Have the generator (alternator) and the
battery checked.
Have the system checked at an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
If the yellow ESP® warning
lampv flashes while driving and
this message appears, the 4-ETS has
switched off to prevent overheating
of the drive wheel brakes.As soon as the brakes have cooled off, the
4-ETS switches on again.
The message in the multifunction display disap-
pears and the ESP
® warning lampv goes
out.
The self-diagnosis has not been
completed yet.The display will clear after driving a short
distance at a vehicle speed of above
12 mph (20 km/h).
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459 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
PShift to P or N
to start engine.You have attempted to start the
engine with the KEYLESS-GO*
start/stop button while the auto-
matic transmission was set to
positionR orD.Set the automatic transmission to
positionP orN.
Make sure the brake pedal is depressed
when attempting to start the engine
with the KEYLESS-GO* start/stop but-
ton.
Only shift to P
when vehicle
is at a standstill.You have tried to shift the automat-
ic transmission into positionP us-
ing the gear selector lever although
the vehicle is still in motion.Stop the vehicle.
Apply the parking brake (page 67).
SRSRestraint Sys. Malfunction
Service RequiredThe system is malfunctioning.Drive with added caution to the nearest
authorized Mercedes-Benz Light Truck
Center.
Warning!G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you contact an authorized
Mercedes-Benz Light Truck Center immedi-
ately to have the system checked; otherwise
the SRS may not be activated when needed
in an accident, which could result in serious
or fatal injury, or it might deploy unexpect-
edly and unnecessarily which could also re-
sult in injury.
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