Page 459 of 585
458 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning. This message
will only appear if a number of
critical LEDs have stopped work-
ing.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Active headlamps
inoperative
The active Bi-Xenon* headlamps
system is malfunctioning.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Brake lamp
Left
The left brake lamp is malfunc-
tioning. A substitute bulb is
being used.
Replace the bulb as soon as possible
(page 490).
Brake lamp
Right
The right brake lamp is malfunc-
tioning. A substitute bulb is
being used.
Replace the bulb as soon as possible
(page 490).
Display malfunction
Visit workshop
The display for the lamps or the
system is malfunctioning.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Front foglamp
Left
The left front fog lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 488).
Front foglamp
Right
The right front fog lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 488).
Page 460 of 585
459 Practical hints
What to do if …
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Display messages
Possible cause/consequence
Possible solution
.
Parking lamp
Front Left
The front left parking lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible
(page 487).
Parking lamp
Front Right
The right front parking lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible
(page 487).
High beam
Left
The left high beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible
(page 486).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
High beam
Right
The right high beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible
(page 486).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Page 461 of 585
460 Practical hintsWhat to do if …Display symbol
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Possible cause/consequence
Possible solution
.
License plate lamp
Left
The left license plate lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 492).
License plate lamp
Right
The right license plate lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 492).
AUTO Light
inoperative
The light sensor is malfunction-
ing. The headlamps do not
switch on automatically.
In the control system, set lamp operation
to manual mode (
page 137).
Switch on headlamps using the exterior
lamp switch.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Low beam
Left
The left low beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible
(page 485).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Page 462 of 585
461 Practical hints
What to do if …
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Display messages
Possible cause/consequence
Possible solution
.
Low beam
Right
The right low beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible
(page 485).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Marker lamp
Front Left
The left front side marker lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 488).
Marker lamp
Front Right
The right front side marker lamp
is malfunctioning.
Replace the bulb as soon as possible
(page 488).
Foglamp
Rear Left
The left rear fog lamp is malfunc-
tioning.
Replace the bulb as soon as possible
(page 490).
Reverse lamp
Left
The left backup lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 490).
Reverse lamp
Right
The right backup lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 490).
Page 463 of 585
462 Practical hintsWhat to do if …Display symbol
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Possible cause/consequence
Possible solution
.
Switch off lights
You have removed the SmartKey
from the starter switch, opened
the driver’s door and left the
headlamps on or removed the
SmartKey with KEYLESS-GO*
from the vehicle and left the
headlamps on.
Switch off the headlamps (
page 66).
Switch off lights
or remove key
You have opened the driver’s
door while the exterior lamp
switch is in positionU and
the SmartKey is still in the start-
er switch.
The parking lamps are still on.
Switch off the headlamps (
page 66).
or
Remove the SmartKey from the starter
switch.
Tail lamp
Left
The left tail lamp is malfunction-
ing. A substitute bulb is being
used.
Replace the bulb as soon as possible
(page 490).
Tail lamp
Right
The right tail lamp is malfunc-
tioning. A substitute bulb is be-
ing used.
Replace the bulb as soon as possible
(page 490).
Page 464 of 585
463 Practical hints
What to do if …
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Display messages
Possible cause/consequence
Possible solution
.
Turn signal
Front Left
The left front turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible
(page 487).
Turn signal
Front Right
The right front turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible
(page 487).
Turn signal
Rear Left
The left rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible
(page 490).
Turn signal
Rear Right
The right rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.
Replace the bulb as soon as possible
(page 490).
Turn signal
Left mirror
The turn signal in the left exteri-
or rear view mirror is malfunc-
tioning. This message will only
appear if a number of critical
LEDs have stopped working.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Turn signal
Right mirror
The turn signal in the right exte-
rior rear view mirror is malfunc-
tioning. This message will only
appear if a number of critical
LEDs have stopped working.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Page 465 of 585
464 Practical hintsWhat to do if …Display symbol
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Possible cause/consequence
Possible solution
L
Tele Aid
inoperative
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.
Tele Aid
battery
The emergency power battery for the
Tele Aid* system is malfunctioning. If the
vehicle battery is also malfunctioning or
drained, Tele Aid* will not be operational.
Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
t
Function
unavailable
This display appears if buttont
ors on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone.
W
Top up
washer fluid
The fluid level has dropped to about
1/3 of
total reservoir capacity.
Add washer fluid (
page 363).
Page 466 of 585
465 Practical hints
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Possible cause/consequence
Possible solution
H
Tire pressure
Check tires
The pressure is too low in one or
more tires.
Check and correct tire inflation pressure as
required.
Tire pressure
Caution - tire defect
One or more tires are deflating.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel.
Caution - tire defect
Vehicles with Advanced TPMS*:
One or more tires are deflating.
The respective tire is shown in the
multifunction display.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
