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What to do if …
342
G
Warning!
If the 75 indicator lamp illuminates and remains illuminated with the weight of a typical adult or someone larger than a small
individual on the front passenger seat, do not have any passenger use the front passenger seat until the system has been repaired.
Problem Possible cause/consequence Suggested solutions
75
The 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 passenger
seat.
The system is malfunctioning.
X
Make sure there is nothing between seat cushion and child seat
and check installation of the child seat.
X
Make sure no objects applying supplemental weight onto the seat
are present.
X
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.
X
If the front passenger front air bag off indicator lamp remains out,
have the system checked as soon as possible at an authorized
Mercedes-Benz Center. Do not transport a child on the front
passenger seat until the system has been repaired.
X
Read and observe messages in the multifunction display and follow
corrective steps (Y page 295).
G
Warning!
If the 75 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.
Practical hints