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Practical hints
What to do if …
Display symbol Display message Possible cause Possible solution
.
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 possi-
ble.
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 possi-
ble.
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 possi-
ble.
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 pos-
sible.
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 pos-
sible.
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 pos-
sible.