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Practical hints
What to do if …
Problem Possible
cause/consequence
Suggested solution
59 The front passenger
front air bag off indica-
tor lamp does not illu-
minate 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 passenger
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
pushing against roof etc.). The system may recognize
such forces as supplemental weight.
̈ If the front passenger front air bag off indicator lamp
remains out, have the system checked as soon as pos-
sible by an authorized Mercedes-Benz Light Truck
Center. Do not transport a child on the front passen-
ger seat until the system has been repaired.
̈ Also note any messages in the multifunction display
and follow corrective steps (
୴ page 421).
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.