Page 311 of 416
311 Practical hints
What to do if …
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A
RESERVE FUEL
GO TO GAS STATION
The fuel level has dropped below the re-
serve mark.
Refuel at the next gas station
(page 235).
CHECK GAS CAP
SEE OPERATOR’S MANUAL
A loss of pressure has been detected in
the fuel system. The fuel cap may not be
closed properly or the fuel system may be
leaky.
Check the fuel cap (
page 235).
If it is not closed properly:
Close the fuel cap.
If it is closed properly:
Have the fuel system checked by an
authorized Mercedes-Benz Light Truck
Center.
Y
HOOD OPEN!
You are driving with the hood open.
Close the hood (
page 239).
I
REMOVE KEY!
You have forgotten to remove the
SmartKey.
Remove the SmartKey from the starter
switch.
REPLACE KEY
DRIVE TO WORKSHOP!
No additional code available for
SmartKey.
Visit an authorized Mercedes-Benz
Light Truck Center.
Page 312 of 416
312 Practical hintsWhat to do if …Display symbol
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Possible cause
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.
3RD BRAKE LIGHT
CHECK LIGHT!
The high mounted brake lamp is malfunc-
tioning. This message will only appear if
all light emitting diodes have stopped
working.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
ADD. TURN SIG., L
CHECK LIGHT!
The left turn signal in the exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if all light emitting
diodes have stopped working.
Have the LEDs replaced as soon as
possible.
ADD. TURN SIG., R
CHECK LIGHT!
The right turn signal in the exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if all light emitting
diodes have stopped working.
Have the LEDs replaced as soon as
possible.
AUTOM. LIGHT ON
REMOVE KEY!
You have left the SmartKey in the starter
switch.
Remove the SmartKey from the starter
switch.
BRAKE LIGHT
DRIVE TO WORKSHOP!
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
BRAKE LIGHT, L
CHECK LIGHT!
The left brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Page 313 of 416
313 Practical hints
What to do if …
Display symbol
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Possible cause
Possible solution
.
BRAKE LIGHT, R
CHECK LIGHT!
The right brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
FRONT FOGLIGHT, L
CHECK LIGHT!
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
FRONT FOGLIGHT, R
CHECK LIGHT!
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
FR. L. PARK. LAMP
CHECK LIGHT!
BACK-UP LIGHT ON!
The left parking lamps are malfunction-
ing. A backup bulb is being used.
Replace the bulb as soon as possible.
FR. R. PARK LAMP
CHECK LIGHT!
BACK-UP LIGHT ON!
The right parking lamps are malfunction-
ing. A backup bulb is being used.
Replace the bulb as soon as possible.
HIGH BEAM, L
CHECK LIGHT!
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
HIGH BEAM, R
CHECK LIGHT!
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
Page 314 of 416
314 Practical hintsWhat to do if …Display symbol
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Possible cause
Possible solution
.
LIGHT SENSOR
DRIVE TO WORKSHOP!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp opera-
tion to manual (
page 137).
Switch on headlamps using the
exterior lamp switch (
page 110).
Visit an authorized Mercedes-Benz
Light Truck Center as soon as possi-
ble.
LICENSE PLATE LIGHT, L
CHECK LIGHT!
The left license plate lamp is malfunction-
ing.
Replace the bulb as soon as possible.
LICENSE PLATE LIGHT R
CHECK LIGHT!
The right license plate lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
LIGHTS
TURN OFF LIGHTS!
The display appears if the driver’s door is
opened with the engine shut off and no
SmartKey in the starter switch.
Insert SmartKey in the starter switch.
Switch off the lights (
page 110).
LOW BEAM, L
CHECK LIGHT!
The left low beam lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
LOW BEAM, R
CHECK LIGHT!
The right low beam lamp is malfunction-
ing.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Page 315 of 416
315 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
.
MARKER LIGHT, FL
CHECK LIGHT!
The left front side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
MARKER LIGHT, FR
CHECK LIGHT!
The right front side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
REAR FOGLIGHT
CHECK LIGHT!
The rear fog lamp is malfunctioning.
Replace the bulb as soon as possible.
REAR FOGLIGHT
TURN OFF
BACK-UP LIGHT ON!
A lamp is malfunctioning. A backup bulb
is being used.
Turn the rear fog lamp off.
REVERSE LIGHT, R
CHECK LIGHT!
The right backup lamp is malfunctioning.
Replace the bulb as soon as possible.
TAIL LIGHT, L
CHECK LIGHT!
BACK-UP LIGHT ON!
The left tail lamp is malfunctioning.
A backup bulb is being used.
Replace the bulb as soon as possible.
TAIL LIGHT, R
CHECK LIGHT!
BACK-UP LIGHT ON!
The right tail lamp is malfunctioning.
A backup bulb is being used.
Replace the bulb as soon as possible.
TURN SIG., LF
CHECK LIGHT!
BACK-UP LIGHT ON!
The left front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Page 316 of 416
316 Practical hintsWhat to do if …Display symbol
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Possible cause
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.
TURN SIG., RF
CHECK LIGHT
!
BACK-UP LIGHT ON!
The right front turn signal lamp is mal-
functioning. A backup bulb is being
used.
Replace the bulb as soon as
possible.
TURN SIG., LR
CHECK LIGHT
!
BACK-UP LIGHT ON!
The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as
possible.
TURN SIG., RR
CHECK LIGHT!
BACK-UP LIGHT ON!
The right rear turn signal lamp is mal-
functioning. A backup bulb is being
used.
Replace the bulb as soon as
possible.
VISIT WORKSHOP!
DISPLAY MALFUNCTION
The display for the lamps or the system
is malfunctioning.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
TURN SIG. MIRROR, L
CHECK LIGHT!
The left turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
TURN SIG. MIRROR, L
CHECK LIGHT!
The right turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Page 317 of 416
317 Practical hints
What to do if …
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Possible solution
1
RESTRAINT SYSTEM
SERVICE
The system is malfunctioning. The air-
bags or emergency tensioning device
(ETD) could deploy unexpectedly or fail to
activate in an accident.
Drive with added caution to the near-
est authorized Mercedes-Benz Light
Truck Center.
RESTRAINT SYSTEM
DRIVE TO WORKSHOP!
The system is malfunctioning. The air-
bags or emergency tensioning device
(ETD) could deploy unexpectedly or fail to
activate in an accident.
Drive with added caution to the near-
est 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 visit an authorized Mercedes-Benz
Light Truck Center immediately to have the
system checked.
Otherwise the SRS may not be activated
when needed in an accident, which could re-
sult in serious or fatal injury, or it might de-
ploy unexpectedly and unnecessarily which
could also result in injury.
Page 318 of 416
318 Practical hintsWhat to do if …Display symbol
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<
SEAT BELT SYSTEM
DRIVE TO WORKSHOP!
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
§
TC IN NEUTRAL
No gear has been selected in the transfer
case, it is in NEUTRAL.
Engage transfer case to gear position
HIGH or LOW (
page 154).
Warning!
G
If the transfer case is in NEUTRAL, the
Pposition of transmission will not hold vehi-
cle. The parking brake must be applied to
hold vehicle in place.
