Is there any expiry date for Air bags

[aamir_shhbz]

Guys,


I want to knw that is there any expiry date for air bags if yes then how to replace it.


How much it cost.





Thnx

[riz_]

Originally Posted by aamir_shhbz

http://en.wikipedia.org/wiki/Airbag

I didn't know Wiki was an automaker.




Let's see what it says at the very top of this article:






Do I really have to explain!

[iLLDuDe786]

No but they require checking/maintenance after every 6-8 years.

[wik_a]

Originally Posted by riz_

I didn't know Wiki was an automaker.

Yeah you're right. I'm not an automaker.

[wik_a]

Originally Posted by wik_a

WOW... I should open "Advanced Airbag Replacement" facility ASAP lol.

If you do, hire Toofan as your parts installer. He will swipe a few additional parts as expired, for latter sale, of course.



[/quote]


LOL...

[HumanGenius]

@ Riz, wik, Toofan, interesting conversation (Y)

@wik
Yaar make sure you open an outlet in Islamabad so I can check my cars too...

[toofast]

No there is no expiration date.

[kool]

Originally Posted by HumanGenius

I dont know but it sure sounds logical. Airbags sitting compressed for years with heat and cold, high and low pressures, I think they should at least be inspected every couple years. And those who are saying there is no expiration date, know that practically everything has an exipry date - sooner or later. Unless your banking on the fact that by the time an airbag system gets messed up, either its been deployed or the cars a clunker

bro airbags do not sit "compressed", they have chemicals inside that react instantaneously upon an impact to release gases that inflate the airbag. it all happens in a split seond, ofcourse, as we all know.


here's a source if you don't believe me:


http://en.wikipedia.org/wiki/Airbag :



h4
Inflation
/h4

When the frontal airbags are to deploy, a signal is sent to the inflator unit within the airbag control unit. An igniter starts a rapid chemical reaction generating primarily nitrogen gas (Nsub2/sub) to fill the airbag making it deploy through the module cover. Some airbag technologies use compressed nitrogen or argon gas with a pyrotechnic operated valve ("hybrid gas generator"), while other technologies use various energeticpropellants. Propellants containing the highly toxic sodium azide (NaNsub3/sub) were common in early inflator designs. However, propellants containing sodium azide were widely phased out during the 1990s in pursuit of more efficient, less expensive and less toxic alternatives.sup[citation needed]/sup


The azide-containing pyrotechnic gas generators contain a substantial amount of the propellant. The driver-side airbag would contain a canister containing about 50 grams of sodium azide. The passenger side container holds about 200 grams of sodium azide.sup
[
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/sup The incomplete combustion of the charge due to rapid cooling leads to production of carbon monoxide (CO) and nitrogen(II) oxide as reaction by-products.sup
[
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]
/sup


The alternative propellants may incorporate, for example, a combination of nitroguanidine, phase-stabilized ammonium nitrate (NHsub4/subNOsub3/sub) or other nonmetallic oxidizer, and a nitrogen-rich fuel different than azide (eg.tetrazoles, triazoles, and their salts). The burn rate modifiers in the mixture may be an alkaline metal nitrate (NOsub3/sub-) or nitrite (NOsub2/sub-), dicyanamide or its salts, sodium borohydride (NaBHsub4/sub), etc. The coolants and slagformers may be eg. clay, silica, alumina, glass, etc.sup
[
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/sup Other alternatives are eg. nitrocellulose based propellants (which have high gas yield but bad storage stability, and their oxygen balance requires secondary oxidation of the reaction products to avoid buildup of carbon monoxide), or high-oxygen nitrogen-free organic compounds with inorganic oxidizers (e.g., di or tricarboxylic acids with chlorates (ClOsub3/sub-) or perchlorates(HClOsub4/sub) and eventually metallic oxides; the nitrogen-free formulation avoids formation of toxic nitrogen oxides).


From the onset of the crash, the entire deployment and inflation process is about 0.04 seconds — faster than the blink of an eye (about 0.2 seconds). Because vehicles change speed so quickly in a crash, airbags must inflate rapidly to reduce the risk of the occupant hitting the vehicle's interior.

[ahsen_rg]

on my car (alfa romeo, its says 10yrs....(read it somewhere.. prolly on the side pillar).. .. will get the pic tomorrow..

[xalmanreyaz]

to check whether the are expired or not ...bang ur head on steering wheel if it inflates then its ok u can use it again :p

if not then u surely have to change :p

waisay i have tried banging ma head on alto but i think they didnt provide one :p


BHAI NO NEED TO CHECK THE VALIDITY

[aamir_shhbz]

What i understand from all this discussion is some automaker do recommend the replacement of airbags after ten years but it is not practical to do. It may be cost you more than vehicle value and also there is no such facility in Pakistan. So we should ignore the expiry date issue.

[aamir_shhbz]

Originally Posted by aamir_shhbz

What i understand from all this discussion is some automaker do recommend the replacement of airbags after ten years but it is not practical to do. It may cost you more than vehicle value and also there is no such facility in Pakistan. So we should ignore the expiry date issue.

[HumanGenius]

@kool
Interesting (Y)