| General safety regulations |
Note | Pyrotechnic components are: |
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| Belt force limiters (depending on equipment version) |
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| Battery isolation elements (depending on equipment version) |
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| Testing, removing, installing and repair work may only be performed by qualified personnel. |
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| There are no specified intervals for renewing airbag units. |
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| Never perform tests with a test lamp, voltmeter or ohmmeter. |
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| Only check pyrotechnic components when they are installed in the vehicle and always use suitable vehicle diagnostic, testing and information systems which have been approved by the manufacturer. |
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| When working on pyrotechnic components and on the airbag control unit -J234- always disconnect the battery earth strap with the ignition SWITCHED ON. Subsequently cover negative terminal. |
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| After disconnecting the battery, you must wait for 10 seconds. |
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| The battery must be connected with the ignition SWITCHED ON. Make sure there is no one in the vehicle. Exception: Vehicles in which the battery is in the passenger compartment; in this case, please keep away from the operating range of the seat belts and airbags. |
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| If the ignition has not yet been switched on after the battery has been reconnected (indicator lamps in instrument cluster off), keep your head and arms away from the steering wheel and any airbag installed (i.e. away from the operating range of any airbags and the seat belts) when switching on the ignition for the first time. |
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| Before handling pyrotechnic components of the restraint system (e.g. unplugging the electrical connector) the mechanic must discharge static electricity, for example by briefly touching earthed metal components such as the door striker plate. |
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| Always wash hands after handling pyrotechnic components of the restraint system which have been triggered. |
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| Pyrotechnic components must not be opened or repaired; always use new parts (risk of injury). |
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| Pyrotechnic components which have been dropped onto a hard surface or which show signs of damage must not be used. |
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| Pyrotechnic components should be installed immediately after removing them from their packaging. |
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| If the work is interrupted, the pyrotechnic component should again be placed in its packaging. |
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| The pyrotechnic component must never be left unattended. |
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| When connecting pyrotechnic components of the restraint system, there should be no-one in the vehicle other than the person performing the work. |
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| Pyrotechnic components must never be treated with grease, cleaning agents or similar. |
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| Always renew airbag units if fabric is contaminated by oil, grease, paint, solvent or similar. |
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| Pyrotechnic components must not be exposed to temperatures higher than 100 °C even for brief periods of time. |
| Special notes for driver's and front passenger's airbags |
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| Following removal, driver's and front passenger's airbag units must be stored with the cushioned side facing upwards. |
| Always keep to the following sequence when renewing airbag units: |
| 1 - | Remove old airbag unit and set it down with cushioned side facing upwards. |
| 2 - | Take new airbag unit out of packaging and set it down with cushioned side facing upwards. |
| 3 - | Immediately place old airbag unit in packaging. |
| 4 - | Install new airbag unit in vehicle. |
| Special notes for belt tensioners |
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| When removing and installing belt tensioners, proceed very carefully. If belt tensioner units are not handled correctly, there is an increased danger and injury risk. |
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| Belt tensioner units which are mechanically damaged (dents, fractures) must always be renewed. |
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| Never point the open end of a belt tensioner at another person. |
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| When connecting the belt tensioner unit, all mechanical components (including those of the three-point seat belt) must be secured properly. Should there not be enough space to connect the belt tensioner unit, the belt must be retracted completely before connecting the tensioner unit. In this case, there is no increased safety risk if you observe the safety precautions, i.e. most importantly the mechanic must disconnect the battery and discharge static electricity before connecting the belt tensioner unit. |
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| Depending on the accident, the belt tensioner might have been triggered WITHOUT the belt force limiter being triggered. These components must be handled in the same way as non-ignited components. |
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