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Practical hints
What to do if …
Problem Possible cause/conse-
quence
Suggested solution
59The front passenger
front air bag off indicator
lamp does not illuminate
and/or does not remain
illuminated with the
weight of a typical
12-month-old child in a
standard child restraint or
less on the front passen-
ger seat.
The system is malfunction-
ing.
̈ Make sure there is nothing between seat cushion and
child seat and check installation of the child seat.
̈ Make sure no objects applying supplemental weight
onto the seat are present.
̈ Make sure no objects which apply forces to the seat are
present (e.g. objects such as books, briefcases etc.
lodged behind or around the seat, head restraints push-
ing against roof etc.). The system may recognize such
forces as supplemental weight.
̈ If the front passenger front air bag off indicator lamp re-
mains out, have the system checked as soon as possible
by an authorized Mercedes-Benz Light Truck Center. Do
not transport a child on the front passenger seat until
the system has been repaired.
̈ Also note any messages in the multifunction display and
follow corrective steps (
୴ page 440).
Warning! G
If the 59 indicator lamp does
not illuminate or remains out with the
weight of a typical 12-month-old child in a
standard child restraint or less on the front
passenger seat, do not transport a child on
the front passenger seat until the system
has been repaired.