Airbags and belt tensioners

Precautions

~2min read

Safety instructions

interventions sur les systèmes airbags et prétensionneurs doivent être effectuéesAll work on airbag and pretensioner systems must be carried out by trained, qualified personnel.

The airbag is a device subject to explosives legislation, classified according to the laws in force in each country. It is therefore important that personnel working on these devices observe the following safety rules:

  • Airbag and pretensioner modules must always be disconnected before using measuring instruments, ohmmeters or any other powered measuring instrument to check components and electrical wiring.
  • No type of measurement must be carried out on airbag and pretensioner modules.
  • Repairing or splicing electrical wiring is strictly prohibited (replace the harnesses).
  • Before carrying out any electric welding, the battery must be disconnected.
  • Do not disconnect the battery with the engine running or with the ignition on and the control module powered.
  • Before reconnecting a connector, check the condition of the contacts, the presence of the seal and the condition of the mechanical locking.

HANDLING PRECAUTIONS

  • Never disassemble the airbag module.
  • Never subject the airbag module to violent impacts.
  • Never bring a magnet close to the module.
  • Carry the airbag one at a time, bag side up.
  • Do not hold the airbag against your body with your arms.
  • Carry the airbag close to the body, with the bag facing outward.

STORAGE PRECAUTIONS

  • Store the airbag bag side up (connector resting) in a cabinet.
  • Do not use an ohmmeter or any other current-generating source on the igniter.
  • Do not expose to temperatures above 100 °C or to open flames.
  • Do not disassemble, cut, drill, weld or modify the assembly.
  • Do not drop or expose to mechanical shocks.
  • Do not remove the shorting clip from the connector.
  • Never dispose of in a landfill or waste bin without having triggered deployment on the vehicle.
  • Never destroy the component anywhere other than in its original mounting location.
  • Deploy the airbag before sending the vehicle for scrapping, following the recommended procedure.

Test yourself

A quick Mercedes-Benz B-Class quiz: every answer comes with an explanation and a link to the manual page.