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Practical hints
What to do if …?
Problem Possible cause Suggested solution
56 The front passenger front air bag
off indicator 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 malfunctioning. ̈ Make sure that there is nothing be-
tween seat cushion and child seat and
check installation of the child seat.
̈ Make sure that no objects applying
supplemental weight onto the seat
are present.
̈ If the front passenger front air bag off
indicator lamp remains out, have the
system checked as soon as possible
by an authorized Mercedes-Benz Cen-
ter. Do not transport a child on the
front passenger seat until the system
has been repaired.
̈ Also note any messages in the multi-
function display and follow corrective
steps (
୴ page 368).
Warning! G
If the 56 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.