Mercedes-Benz S-Class 2011 Operator's Manual page 52

Occupant safety
50
recommend that you always place a child
in a rear-facing child restraint on the rear
seat.
If you install a rear-facing child restraint on
R
the front-passenger seat, make sure the
42 indicator lamp is
illuminated, indicating that the front-
passenger front air bag is deactivated.
Should the 42 indicator lamp
not illuminate or go out while the restraint
is installed, please check installation.
Periodically check the 42
indicator lamp while driving to make sure
the 42 indicator lamp is
illuminated. If the 42 indicator
lamp goes out or remains out, do not
transport a child on the front-passenger
seat until the system has been repaired.
A child in a rear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates.
If you place a child in a forward-facing child
R
restraint on the front-passenger seat:
move the seat as far back as possible
-
use the proper child restraint
-
recommended for the age, size and
weight of the child
secure child restraint with the vehicle's
-
seat belt according to the child seat
manufacturer's instructions
For children larger than a typical 12-month-
R
old child, the front-passenger front air bag
can be activated or deactivated.
Deployment of the driver front air bag does
not mean that the front-passenger front air
bag should also have deployed.
OCS may have determined:
that the seat was unoccupied or occupied
R
by a weight of up to or less than that of a
typical 12-month-old child seated in a
standard child restraint
that the seat was occupied by a small
R
individual (e.g. a young teenager or a small
adult) or a child who weighs more than a
typical 12-month-old child in a standard
child restraint system
These are examples of when OCS deactivates
the front-passenger front air bag. The air bag
is deactivated despite the impact fulfilling the
criteria for deploying the driver's front air bag.
If the SmartKey has been removed from the
ignition lock or is in position 0, indicator lamp
42: does not light up.
G
Warning
If the red SRS 6 indicator lamp in the
instrument cluster and the 42
indicator lamp are lit at the same time, there
is a malfunction in the OCS. The front
passenger front air bag will be deactivated in
this case. Have the system checked by
qualified technicians as soon as possible.
Contact an authorized Mercedes-Benz
Center.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center.
In order to ensure proper operation of the air
bag system and OCS:
Sit with the seat belt properly fastened in a
R
position that is as upright as possible with
your back against the seat backrest.
When seated, a passenger should not
R
position him/herself in such a way as to
cause the passenger's weight to be lifted
from the seat cushion as this may result in
the OCS being unable to correctly