Mercedes-Benz B-Class F-CELL, Operator'S Manual

Page: 54 / 368

Releasing the seat belts
X
Press seat belt release button
?
(
Y
page 51).
Allow the retractor to completely rewind
the seat belt by guiding latch plate
;
(
Y
page 51).
! Make sure the seat belt retracts
completely. Otherwise the seat belt and/or
latch plate could get caught or pinched in
the door or in the seat mechanism. This can
damage the seat belt and impair its
effectiveness, and/or cause damage to the
door and/or door trim panel. Such damage
is not covered by the Mercedes-Benz
Limited Warranty.
Damaged seat belts must be replaced.
Contact an authorized F-CELL Service
Center.
Enhanced seat belt reminder system
When the drive system is started, the seat
belt telltale
7
will always illuminate for
6 seconds to remind you and your passengers
to fasten your seat belts.
If the driver’s seat belt is not fastened when
the drive system is started, an additional
warning chime will sound. The warning chime
goes out after approximately 6 seconds or
once the driver’s seat belt is fastened.
If after these 6 seconds the driver’s or the
front passenger’s seat belt (with the front
passenger seat occupied) is not fastened with
front doors closed,
R
the seat belt telltale
7
remains
illuminated for as long as either the driver’s
or front passenger’s seat belt is not
fastened.
R
and if the vehicle speed once exceeds
15 mph (25 km/h), the seat belt telltale
7
starts flashing and a warning chime
sounds with increasing intensity for a
maximum of 60 seconds or until the
driver’s and front passenger’s seat belt are
fastened.
If you and/or your passenger release the
seat belt during driving, the seat belt
telltale
7
starts flashing and the
warning chime sounds as described before.
If the driver’s or the front passenger’s seat
belt remains unfastened after 60 seconds,
the warning chime stops sounding, the seat
belt telltale
7
stops flashing but
continues to be illuminated.
After a vehicle standstill, the warning chime
is reactivated and the seat belt telltale
7
is flashing again if the vehicle speed
once exceeds 15 mph (25 km/h).
The seat belt telltale
7
will only go out if
both the driver’s and the front passenger’s
seat belt (with the front passenger seat
occupied) are fastened, or the vehicle is
standing still and a front door is opened.
For more information, see “Practical hints”
(
Y
page 333).
Emergency Tensioning Device (ETD),
seat belt force limiter
The seat belts for the front seats are equipped
with ETDs and seat belt force limiters. The
seat belts for the rear outer seats are
equipped with ETDs.
The ETDs are designed to activate in the
following cases:
R
in frontal or rear-end impacts exceeding
the system’s preset deployment threshold
R
if the restraint systems are operational and
functioning correctly, see “SRS indicator
lamp”
The ETDs for the front seats will only activate
if the front seat belts are fastened (latch plate
properly inserted into buckle).
The ETDs for the rear outer seats will activate
with or without the respective seat belts
fastened.
In an impact, the ETDs remove slack from the
seat belts in such a way that the seat belts fit
more snugly against the body. The seat belt
force limiter on driver and front passenger
52
Occupant safety
Safety and security
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2009-09-03T15:03:17+02:00 - Seite 52