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300 Practical hints
What to do if …
Text messages
Display symbolDisplay messagePossible causePossible solution
ABSABS SYSTEM
VISIT WORKSHOP!The ABS has detected a malfunction and
has switched off. The ESP, BAS, EBB and
4-ETS are also deactivated.
The brake system is still functioning nor-
mally but without the ABS available.
Wheels will lock during hard braking, re-
ducing steering capability.Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of accident.
VISIT WORKSHOP!
DISPLAY MALFUNCTION:The ABS or the ABS display is malfunc-
tioning.
Wheels will lock in hard braking reducing
steering capability.Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of accident.
BASBRAKE ASSIST
VISIT WORKSHOP!The BAS has detected a malfunction and
switched off.
The brake system is still functioning nor-
mally but without the BAS available.
Wheels will lock in hard braking reducing
steering capability.Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of accident.
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303 Practical hints
What to do if …
DisplayDisplay messagePossible causePossible solution
ESPESP
VISIT WORKSHOP!The ESP is switched off due to a malfunc-
tion or an interruption in the power sup-
ply.
The brake system is still functioning nor-
mally but without ESP, ABS and BAS avail-
able.
If in addition the ABS is malfunctioning,
only partial engine output will be avail-
able.Continue driving with added caution.
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of accident.
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305 Practical hints
What to do if …
Display symbolDisplay messagePossible causePossible solution
#UNDERVOLTAGE
SWITCH CONSUMERS OFF!The battery has insufficient voltage.Have the battery checked at a ser-
vice station.
2BRAKE WEAR
VISIT WORKSHOP!The brake pads have reached their
wear limit.Have the brake pads replaced as
soon as possible.
3 BRAKE FLUID
VISIT WORKSHOP!There is insufficient brake fluid in the
reservoir.Risk of accident! Stop the vehicle
and notify an authorized
Mercedes-Benz Light Truck Center.
Do not add brake fluid! This will not
solve the problem.
Warning!G
Driving with the message BRAKE FLUID
VISIT WORKSHOP
displayed can result in an
accident. Have your brake system checked
immediately.
Do not add brake fluid before checking the
brake system. Overfilling the brake fluid res-
ervoir can result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You can be seriously burned.
!
If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks.
!
Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Maintenance
Booklet.
Page 307 of 417
306 Practical hints
What to do if …
Display symbolDisplay messagePossible causePossible solution
3ELEC. BRAKE BOOST.
VISIT WORKSHOP!The EBB has detected a malfunction and
has switched off.
The brake system is still functioning nor-
mally but without the EBB available.Continue driving with added cau-
tion.
Have the system checked at an au-
thorized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of accident.
;(USA only)
! (Canada only)
PARK. BRAKE
RELEASE BRAKE!You are driving with the parking brake
set.Release the parking brake
(
page 50).
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314 Practical hints
What to do if …
Display symbolDisplay messagePossible causePossible solution
. 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.
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315 Practical hints
What to do if …
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. 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.
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320 Practical hints
What to do if …
Display symbolDisplay messagePossible causePossible solution
DRIVE TO WORKSHOP!The seat belt system is malfunctioning.Visit an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
§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 157).
Warning!G
If the transfer case is in NEUTRAL, the
Pposition of the transmission will not hold
the vehicle. The parking brake must be ap-
plied to hold vehicle in place.
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337 Practical hints
Replacing bulbs
Notes on bulb replacement
Use only 12 volt bulbs of the same type
and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Light Truck Center.
Have the LEDs for the following lamps re-
placed by an authorized Mercedes-Benz
Light Truck Center.
Additional turn signals in the exterior
rear view mirrors
High mounted brake lamp
Lamps in the exterior rear view mirrors
Warning!G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas.
A bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
i
Have the headlamp adjustment
checked regularly by a Mercedes-Benz
Light Truck Center.
Do not turn the headlamp adjusting
screws. If the adjusting screws are
turned, the headlamp adjustment must
be checked by a Mercedes-Benz Light
Truck Center.