Pyrotechnic Belt Tensioners, Disposal

Pyrotechnic Belt Tensioners, Disposal

- The scrapping of gas generators which have not been triggered represents a hazard.
- In line with the relevant accident prevention regulations, the gas generator of the belt tensioner unit must be rendered inoperable before scrapping.
- This is necessary because pyrotechnic devices can cause injury if disposed of incorrectly (e.g. using a blow torch).
- 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.
- This does not apply to malfunctioning seat belts (sticking, failure to retract) which are required for factory analysis.
- Observe regulations governing transportation of explosive substances.
- Procedure for triggering front pyrotechnic belt tensioners:


NOTE:
- Whenever possible, pyrotechnic belt tensioners must be deployed outside the vehicle. Use Airbag and Pyrotechnic Deployment Device J-44210.
- The procedure that follows is for deployment of tensioners mounted inside a vehicle.


All
- Unplug connector from belt reel and connect wiring harness (Part No. 8D1 971 259) to belt tensioner.
- 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.
- Make sure there is nobody in the vehicle.
- Trigger gas generator with doors closed and windows open using wiring harness and external battery (outside vehicle).

- Make sure adequate vehicle ventilation after triggering.
- Belts can be disposed of with commercial refuse after removal.
- Always wash hands after handling belt tensioners which have been activated.
- Observe safety precautions for handling pyrotechnic belt tensioners.
- The procedure for triggering the rear pyrotechnic belt tensioners is the same as for the front belt tensioners (remove rear shelf or remove upholstery from 2/3 backrest, cut webbing and trigger belt tensioner).