Mercedes-Benz M-Class Owner's Manual page 52

cator lamps in the instrument cluster, seat
belt" ( page 284).
Y
Rear seat belt status indicator
The rear-compartment seat belt status indi-
cator tells you if the rear passengers have
their seat belts fastened.
The rear-compartment seat belt status indi-
cator indicates the rear seat on which the belt
is fastened. The ü symbol in the display
indicates a fastened seat belt. If a seat belt is
not fastened or if a seat is not occupied, the
ý symbol is displayed.
The rear-compartment seat belt status indi-
cator appears in the multifunction display for
around 30 seconds if:
you drive off and reach a speed of approx-
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imately 10 km/h.
the rear passengers fasten or unfasten
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their seat belts while the vehicle is in
motion.
someone gets in or out of the vehicle and
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the vehicle drives off again.
You can also cancel the rear seat belt status
indicator immediately (
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The status indicator for the rear-compart-
ment seat belts is only available for certain
countries.
Belt tensioners, belt force limiters
The front seat belts and the outer seat belts
in the rear are equipped with belt tensioners.
The belt tensioners tighten the seat belts in
an accident, pulling them close against the
body.
Belt tensioners do not correct incorrect seat
positions or incorrectly fastened seat belts.
Belt tensioners do not pull vehicle occupants
back towards the backrest.
If the seat belt is also fitted with a belt force
limiter and this is triggered, the force exerted
by the seat belt on the vehicle occupant is
reduced.
page 253).
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Occupant safety
The belt force limiters on the front seats are
synchronised with the front airbags. They
take on a part of the deceleration force,
resulting in the force exerted on the occupant
being distributed over a greater area.
The belt tensioners can only be activated
when:
the ignition is switched on.
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the restraint systems are operational; see
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"SRS warning lamp" (
the front-passenger seat is occupied and
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the belt tongue is engaged in the buckle on
the front-passenger side.
The belt tensioners on the outside seats in the
rear compartment are triggered independ-
ently of the lock status of the seat belts.
The belt tensioners are triggered depending
on the type and severity of an accident:
if, in the event of a head-on or rear-end col-
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lision, the vehicle decelerates or acceler-
ates rapidly in a longitudinal direction dur-
ing the initial stages of the impact
if, in the event of a side impact, on the side
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opposite the impact the vehicle deceler-
ates or accelerates rapidly in a lateral direc-
tion
if in certain situations where the vehicle
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overturns and the system determines that
it can provide additional protection
If the airbags are deployed, you will hear a
bang, and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard. The 6 SRS warning lamp
lights up.
G
WARNING
If the seat belt tensioners have been trig-
gered, they provide no additional protection
in the event of another accident. Therefore,
have belt tensioners which have been trig-
gered replaced at a qualified specialist work-
shop.
page 41).
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