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Seat belts
Disposal of pyrotechnic belt tensioners
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◆ The scrapping of gas generators which have not been triggered represents a hazard.
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◆ In accordance with the relevant accident prevention regulations, the gas generator of the belt tensioner unit must be rendered inoperable before scrapping.
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◆ This is necessary because pyrotechnic devices can cause injury if disposed of incorrectly (e.g. using a blow torch).
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◆ Seat belts which need to be removed (e.g. after an accident in which the belt tensioner was not activated) must be triggered before removal.
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◆ This does not apply to seat belts with quality defects (sticking, failure to retract) which are required for factory analysis.
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◆ Observe transportation regulations for explosive substances.
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◆ Procedure for rear belt tensioners is similar to that for front tensioners (remove rear shelf and boot side trim or detach 2/3 backrest upholstery).
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◆ Procedure for triggering pyrotechnic belt tensioner:
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‒ Removing upper B pillar trim
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‒ Removing lower B-pillar trim => Page 70-70
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‒ Removing outer seat belt anchorage point => Page 69-14
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‒ Use scissors to cut off webbing above buckle latch (approx. 20 cm above the reel).
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‒ Unplug connector from belt reel and connect wiring harness - Part-no. 8D1 971 259 - to belt tensioner.
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‒ Cut off connector on other end, strip the ends of the two wires and slit the cable sheath until the ends of the wires are at least 30 cm apart.
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‒ Ensure that no-one is in the vehicle.
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‒ Trigger gas generator with doors closed and windows open using wiring harness and external battery (outside vehicle).
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◆ Observe 10 m minimum distance.
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◆ Ensure adequate vehicle ventilation after triggering.
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◆ Belts can be disposed of with commercial refuse after removal.
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◆ Always wash hands after handling belt tensioners which have been activated.
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◆ Observe safety regulations for handling pyrotechnic belt tensioners.
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