Mercedes-Benz SLR McLaren. Operator's Manual.

Safety and Security
Occupant safety
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts are equipped with
emergency tensioning devices and belt
force limiters.
The ETD is designed to activate in the
following cases when the seat belts are
fastened:
in frontal or rear-end impacts exceeding
a preset severity level
if the restraint systems are operational
and functioning correctly, see 1 indicator
lamp ( page 62)
In an impact, emergency tensioning devices
remove slack from the belts in such a
way that the seat belts fit more snugly
against the body. Belt force limiters reduce
the force exerted by the seat belts on
occupants during a crash.
72
Warning! G
An emergency tensioning device (ETD) that
was activated must be replaced.
When disposing of the emergency tensioning
device, our safety instructions must be
followed. These are available at your authorized
Mercedes-Benz Center.
!
Do not place objects heavier than
20 lbs (9 kg) on the front passenger
seat. This could cause the front or side
impact airbag on the passenger side
and, with the seat belt fastened to secure
the object, the ETD to deploy in a
crash which exceeds the system’s deployment
threshold.
Children in the vehicle
If an infant or child is traveling with you in
the vehicle:
Secure the child using an infant or child
restraint appropriate to the age and
size of the child.
Make sure the infant or child is properly
secured at all times while the vehicle
is in motion.
Infant and child restraint seats and information
on choosing an appropriate restraint
system can be obtained from any
Mercedes-Benz Center.