Air Bag Systems: Service Precautions

Safety Precautions When Working On Airbag

The safety precautions listed here will be updated as required and should always be consulted before performing repair work.

CAUTION:

- Testing, removing, installing and repair work must only be performed by qualified, trained Service department personnel.
- Always disconnect the battery Ground (GND) strap before working on the airbag system.
- Never use test lamp, voltmeter or ohmmeter for checking.
- Airbag systems are only to be checked using vehicle diagnostic, testing and information system VAS 5051 A. Exception: Coil connector with slip ring
- No waiting time is necessary after disconnecting the battery.
- When connecting the airbag system to battery positive voltage (B+), there must be no person inside the vehicle.
- A technician must be electrostatically discharged before picking up (touching) an airbag unit. This is accomplished by touching a suitable metal part, for example, a water pipe, a heating pipe or a metal frame.
- Install a new airbag unit in the vehicle as soon as the unit is removed from the packaging. If the work is interrupted, place the airbag unit back in its packaging.
- Do not leave an undeployed airbag unit unattended if work is interrupted.
- Always place an airbag unit that has been removed from its packaging with the padded side facing upward.

- Airbag units which have dropped onto a hard surface or show signs of damage must not be installed in the vehicle.
- Airbag units which have not been activated should be marked and returned to the manufacturer for disposal (use airbag unit transport container).
- Always replace any airbag system component that has been mechanically damaged (example: dented or cracked).
- The storage and transportation of airbag units must comply with the regulations for explosive substances.
- Only install original seat covers that have been authorized for use with side airbags (recognizable by AIRBAG label).
- Do not install commercially available loose fitting seat covers.
- When installing a backrest cover ensure that the cover seam is straight in the area of the side airbag.
- Replace all seat cover clips.
- Only use original seat cover clips.
- For safety reasons always replace the seat cover if it is damaged in area of the side airbag, e.g. torn, burn holes, etc.
- Do not open or attempt to repair airbag components.

- Always use new components.
- Airbag units have a limited service life (a sticker showing the replacement date is attached to the B-pillar).
- When an airbag unit is replaced, pull the sticker off the new airbag unit and stick it over the old sticker on the B-pillar.
- Airbag units and sticker must be replaced after 14 years.
- If the vehicle does not have a sticker on the B-pillar, an entry must be made in the Service Schedule to record the airbag replacement.
- Never treat airbag units with grease, cleaning agents or the like.
- An airbag unit must never be exposed to temperatures in excess of 100 degrees C (212 degrees F) even for brief periods.