1.1 General safety regulations
Note
Pyrotechnic components are:
♦ Airbag units
♦ Belt tensioners
♦ Belt force limiters (depending on equipment)
♦ Battery isolators (depending on equipment)
General
♦ Testing, fitting and servicing work are only to be performed by
qualified personnel.
♦ There are no replacement intervals for airbag units.
♦ Never check using a test lamp, voltmeter or ohmmeter.
♦ Pyrotechnic components are only to be checked in situ using
vehicle diagnostic, testing and information systems approved
by the manufacturer.
♦ The battery earth strap must be disconnected with the ignition
SWITCHED ON when working on pyrotechnic components
and the airbag control unit -J234- . Then cover the negative
terminal.
♦ A waiting time of 10 seconds is necessary after disconnecting
the battery.
♦ The battery must be connected with the ignition SWITCHED
ON. There must not be anyone in the vehicle when doing so.
Exception: Vehicles with battery in passenger compartment.
When doing so, keep away from the operating range of the
airbags and seat belts.
♦ Heed the measures to be taken after connecting the battery
⇒ Electrical system; Rep. gr. 27 .
♦ Before handling pyrotechnic components of the restraint sys‐
tem (for example to unplug the connector), the person con‐
cerned must discharge static by touching earthed metal parts,
for instance by briefly grasping hold of the door striker plate.
♦ Always wash hands after touching ignited pyrotechnic com‐
ponents of the restraint system.
♦ Pyrotechnic components are neither to be opened nor re‐
paired; always use new parts (risk of injury).
♦ Pyrotechnic components which have been dropped onto a
hard surface or reveal signs of damage are no longer to be
fitted.
♦ Pyrotechnic components must be fitted immediately after re‐
moval from their transportation containers.
♦ Return the pyrotechnic component to its transportation con‐
tainer if work has to be interrupted.
♦ Pyrotechnic components are never to be left unattended.
♦ Other than the person performing the work, there should be
no-one in the vehicle when connecting pyrotechnic compo‐
nents of the restraint system.
♦ Pyrotechnic components are never to be treated with grease,
cleaning agents or the like.
Audi A8 2003 ➤
General body repairs, interior - Edition 07.2011
1. Safety regulations and test methods for pyrotechnic, electrical and mechanical components of the restraint system 95