Page 419 of 539

418 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning. This message
will only appear if all light emit-
ting diodes have stopped work-
ing.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Brake lamp, left
Substitute bulb on
The left brake lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Brake lamp, right
Substitute bulb on
The right brake lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Display malfunction
Visit workshop
The display for the lamps or the
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Front foglamp,
left
The left front fog lamp is mal-
functioning.
Replace the bulb as soon as possible.
Front foglamp,
right
The right front fog lamp is mal-
functioning.
Replace the bulb as soon as possible.
Rear foglamp,
left
The left rear fog lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Rear foglamp,
right
The right rear fog lamp is mal-
functioning.
Replace the bulb as soon as possible.
Page 420 of 539

419 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Active headlamp
currently unavailable
The active Bi-Xenon* headlamps
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Active headlamps
Substitute bulb on
The active Bi-Xenon* headlamps
system is malfunctioning. An-
other light is being used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Active headlamps
inoperative
The active Bi-Xenon* headlamps
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Active headlamp
s
Display malfunction
The active Bi-Xenon* headlamp
system is malfunctioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
High beam,
left
The left high beam lamp is mal-
functioning.
Replace the bulb as soon as possible.
High beam,
right
The right high beam lamp is mal-
functioning.
Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is
malfunctioning.
Replace the bulb as soon as possible.
License plate lamp,
right
The right license plate lamp is
malfunctioning.
Replace the bulb as soon as possible.
Page 421 of 539

420 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
Light sensor
Drive to workshop
The lamp sensor is malfunction-
ing. The headlamps switch on
automatically.
In the control system, set lamp operation
to manual mode.
Switch on headlamps using the exterior
lamp switch.
Low beam,
left
The left low beam lamp is mal-
functioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Low beam,
right
The right low beam lamp is mal-
functioning.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Marker lamp
,
front left
The front left side marker lamp is
malfunctioning.
Replace the bulb as soon as possible.
Marker lamp
,
front right
The front right side marker lamp
is malfunctioning.
Replace the bulb as soon as possible.
Parking lamp, front left
Substitute bulb on
The left parking lamps are mal-
functioning. A substitute bulb is
being used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Parking lamp, front right
Substitute bulb on
The right parking lamps are mal-
functioning. A substitute bulb is
being used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Page 422 of 539
421 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Reverse lamp,
left
The left reverse light is malfunc-
tioning.
Replace the bulb as soon as possible.
Reverse lamp,
right
The right reverse light is mal-
functioning.
Replace the bulb as soon as possible.
Switch off lights
Lamps have been turned on al-
though the SmartKey in the
starter switch is in position0.
Switch off the headlights.
Tail lamp, left
Substitute bulb on
The left tail lamp is malfunction-
ing. A substitute bulb is being
used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Tail lamp, right
Substitute bulb on
The right tail lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Visit an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Page 423 of 539

422 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
Turn signal, rear left
Substitute bulb on
The left rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible.
Turn signal, rear right
Substitute bulb on
The right rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible.
Turn signal, front left
Substitute bulb on
The left front turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible.
Turn signal, front right
Substitute bulb on
The right front turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible.
Turn signal in
mirror, left
The left turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.
Have the LEDs replaced as soon as possi-
ble.
Turn signal in
mirror, right
The right turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.
Have the LEDs replaced as soon as possi-
ble.
Page 426 of 539
425 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
<
Seat belt system
Drive to workshop
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Light Truck Center as soon as possi-
ble.
9
Service memory full
See Operator’s Manual
The maintenance service memory cannot
save any more data.
Have the service memory checked by
an authorized Mercedes-Benz Light
Truck Center.
K
Close
tilt/sliding sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding portion of the
tilt/sliding sunroof* open.
Close the tilt/sliding sunroof*
(page 235).
J
Close
tilt/sliding sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilt portion of the
tilt/sliding sunroof* open.
Close the tilt/sliding sunroof*
(page 235).
Page 427 of 539

426 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
L
Malfunction
Drive to workshop
One or more main functions of the
Tele Aid* system are malfunctioning.
Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
Battery
Drive to workshop
The emergency power battery for the
Tele Aid* system is malfunctioning. If the
vehicle battery is also dead, Tele Aid* will
not be operational.
Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
1
Restraint sys.
malfunction
Drive to workshop
The system is malfunctioning.
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 result in serious or fatal injury,
or it might deploy unexpectedly and unnec-
essarily which could also result in injury.
Page 429 of 539
428 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
>
Vehicle being raised
Your vehicle is adjusting to your level
selection.
Level selec. canceled
You have select another vehicle level.You are driving too fast for the selected
level.
Reduce vehicle speed.
Set the desired vehicle level again
(page 250).
Visit workshop
The system is functional only to a limited
extent.
The system display or the system is mal-
functioning.
Do not drive faster than 50 mph
(80 km/h) depending on the set vehi-
cle level.
Have the vehicle checked at an autho-
rized Mercedes-Benz Light Truck
Center.
Max. speed 20 mph
Drive with extreme care
You are driving too fast for the desired
level selection.
Reduce vehicle speed under 20 mph.