Audi Q7 361 - Page 25

Side airba g ign i ter o n driv er si de N199
Si de a i r b ag i g ni ter on fr ont pa ssenger si de N200
T h e r elevant side a i rbag igniters ar e ener g i sed by the a i rb ag co ntr o l unit. T h e priming c h a r g e then ig nites th e
pr opellant c har ge. T he combu stion ga s gener a ted f l o ws th r ou gh th e metal f i lter int o the airbag. T he airb ag is
deplo yed.
P r i m in g c h a r ge
Ignit e r
Pr o p e ll a n t c h a r g e
Metal f il t er Ve n t
Ve n t
361 _ 022
R e ar s i de a i rbag ig niter on driver side N201
R e ar si de a i rbag igniter on fr ont passenger si de N202
T h e pr opellan t c h a r ge is ig nit e d by the ig nit e r . T h e
gener a t e d ga s br eaks both burst discs and becomes
mixe d with the cold ga s contained in the co ld ga s
cylinder . T h e ga s mixtur e f l ow s thr o ugh the metal
f i lter int o the airb a g , deplo y ing it.
F a bric cov er
361 _ 066
Ig niter P r o pellant c h ar g e
F i lt er tu be with ven t s B u r st di sc I B urst di sc II C o ld ga s cy linder
Ga s : ar g on, appr o x. 97 %
helium, appr o x. 3 %
P r essu r e: a ppr o x. 240 bar
361 _ 037
25