Mercedes-Benz 2009 CLS-Class Operator's Manual page 304

Practical hints
What to do if ...
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
75
The 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.
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.
302
Possible cause/consequence
The system is malfunctioning.
Suggested solutions
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 indicator lamp remains out, have the system checked as soon
as possible at an authorized Mercedes-Benz Center. Do not trans-
port 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 255).