Page 356 of 457
355 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Front
foglamp
leftThe left front fog lamp is malfunctioning.Replace the bulb as soon as possible
(
page 382).
Front
foglamp
rightThe right front fog lamp is malfunctioning.Replace the bulb as soon as possible
(
page 382).
Front left
side marker
lampThe left front side marker lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 384).
Front right
side marker
lampThe right front side marker lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 384).
High beam
leftThe left high beam lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Light
Truck Center as soon as possible.
High beam
rightThe right high beam lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz Light
Truck Center as soon as possible.
Page 357 of 457

356 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.License plate
lamp, leftThe left license plate lamp is malfunc-
tioning.Replace the bulb as soon as possible
(
page 387).
License plate
lamp, rightThe right license plate lamp is malfunc-
tioning.Replace the bulb as soon as possible
(
page 387).
Low beam
leftThe left low beam lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Low beam
rightThe right low beam lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Parking lamp
front left
Auxiliary bulb
onThe left front parking lamp is malfunc-
tioning. A substitute bulb has been
brought into use.Replace the bulb as soon as possible
(
page 380).
Parking lamp
front right
Auxiliary bulb
onThe right front parking lamp is malfunc-
tioning. A substitute bulb has been
brought into use.Replace the bulb as soon as possible
(
page 380).
Page 358 of 457
357 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Rear
fog lampThe rear fog lamp is malfunctioning. Replace the bulb as soon as possible
(
page 386).
Rear
fog lamp
Auxiliary bulb
onA lamp is malfunctioning. A substitute
bulb has been brought into use.Switch off the rear fog lamp (page 121).
Reverse
lamp
right
The right backup lamp is malfunction-
ing.Replace the bulb as soon as possible
(
page 386).
Switch off
lightsYou have removed the SmartKey from
the starter switch, opened the driver’s
door and left the headlamps on.Switch off the headlamps using the exterior lamp
switch (
page 117).
Tail lamp
left
Auxiliary bulb
onThe left tail lamp is malfunctioning.
A substitute bulb has been brought into
use.Replace the bulb as soon as possible
(
page 385).
Tail lamp
right
Auxiliary bulb
onThe right tail lamp is malfunctioning.
A substitute bulb has been brought into
use.Replace the bulb as soon as possible
(
page 385).
Page 360 of 457
359 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Turn signal
in left side
mirrorThe turn signal in the left exterior rear
view mirror is malfunctioning. This
message will only appear if a critical num-
ber of LEDs have stopped working.Contact an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Turn signal
in right side
mirrorThe turn signal in the right exterior rear
view mirror is malfunctioning. This
message will only appear if a critical num-
ber of LEDs have stopped working.Contact an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
Turn off
lights or
remove keyYou have opened the driver’s door while
the exterior lamp switch is in
positionU and the SmartKey is still in
the starter switch.
The parking lamps are still on.Switch off the headlamps using the
exterior lamp switch (
page 117).
or
Remove the SmartKey from the starter
switch.
Page 361 of 457

360 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
1Restraint
system
Service
Visit
workshopThere is a malfunction in the restraint sys-
tems. The air bags or Emergency Tensioning
Devices (ETDs) might deploy unexpectedly or
may not deploy in an accident.Drive with added caution to the
nearest authorized Mercedes-Benz
Light Truck Center and have the
system checked.
Restraint
system
malfunction
Visit
workshopThere is a malfunction in the restraint sys-
tems. The air bags or Emergency Tensioning
Devices (ETDs) might deploy unexpectedly or
may not deploy in an accident.Drive with added caution to the
nearest authorized Mercedes-Benz
Light Truck Center and have the
system checked.
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
immediately to have the system checked;
otherwise the SRS may not deploy when
needed in an accident, which could result in
serious or fatal injury, or it might deploy
unexpectedly and unnecessarily which
could also result in an accident and/or
injury to you or to others.
Page 364 of 457
363 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
§Transfer
case
Visit
workshopThe transfer case is malfunctioning.Do not switch the transfer case on.
Contact an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
TC
shift
procedure
canceledThe shift process in the transfer case was
canceled because of a malfunction.Repeat the shift process (page 170).
TC
shift
conditions
not fulfilledYou have not met the shift conditions for
a selection process in the transfer case.Repeat the shift process (page 170).
TC
in neutralNo gear has been selected in the transfer
case, it is in NEUTRAL.Engage transfer case to gear position
HIGH or LOW (
page 170).
Warning!G
If the transfer case is in NEUTRAL,
thePposition of the transmission will not
hold the vehicle. The parking brake must be
applied to hold vehicle in place.
Page 365 of 457
364 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
LTele Aid
inoperativeOne or more main functions of the
Tele Aid system are malfunctioning.Have the Tele Aid system checked at an
authorized Mercedes-Benz Light Truck
Center.
tFunction
unavailableThis message appears if buttont
ors on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
ÊThis message will appear whenever the
tailgate is open.Close the tailgate.
Page 366 of 457
365 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
±Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:
Coolant temperature display
Tachometer
Cruise control display
Have the electronic systems checked
at an authorized Mercedes-Benz Light
Truck Center.
[Clean
fuel filterContact an authorized Mercedes-Benz
Light Truck Center as soon as possi-
ble.
WTop up
washer fluidThe fluid level has dropped to
about1/3of total reservoir capacity.
Add washer fluid (page 275).