Mercedes-Benz 2008 SL 55 AMG, Operator'S Manual

Page: 83 / 489

82
Safety and Security
Occupant safety
Enhanced seat belt reminder system
When the engine is started, the seat belt
telltale
<
will always illuminate for
6 seconds to remind you and your pas-
senger to fasten your seat belts.
If the driver’s seat belt is not fastened
when the engine is started, an additional
warning chime will also sound for a
maximum of 6 seconds or until the driver’s
seat belt is fastened.
If after these 6 seconds, the driver’s or the
passenger’s seat belt (with the passenger
seat occupied) are not fastened with both
doors closed,
앫
the seat belt telltale
<
remains
illuminated for as long as either the
driver’s or passenger’s seat belt is not
fastened.
앫
and if the vehicle speed once exceeds
15 mph (25 km/h), the seat belt
telltale
<
starts flashing and a
warning chime sounds with increasing
intensity for a maximum of 60 seconds
or until the driver’s and passenger’s
seat belts are fastened.
If the driver’s or the passenger’s seat
belt remain unfastened after
60 seconds, the warning chime stops
sounding. The seat belt telltale
<
stops flashing but continues to be
illuminated.
The seat belt telltale
<
will only go out
if both the driver’s and the passenger’s
seat belt (with the passenger seat occu-
pied) are fastened, or the vehicle is stand-
ing still and a door is opened.
For more information, see the “Practical
hints” section (
컄
page 352).
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:
앫
in frontal or rear-end impacts
exceeding the system deployment
threshold
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if the restraint systems are operational
and functioning correctly, see
1
indicator lamp (
컄
page 68)
앫
in certain vehicle rollovers if the
system determines an additional
degree of protection
i
The ETDs will only activate if the seat belts
are fastened (latch plate properly inserted into
buckle).