Question on Safety Belt Pretensioners

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   What are they and how do I tell if my car them...they sound cool!!!
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BeemaBoy Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Starting a Collection Joined: 25-October-2004 Location: Johannesburg, South Africa Status: Offline Points: 927	Post Options Post Reply Quote BeemaBoy Report Post Thanks(0) Quote Reply Topic: Question on Safety Belt Pretensioners Posted: 28-September-2006 at 15:12
	What are they and how do I tell if my car them...they sound cool!!! BB
	87 E30 320I 95 E34 525I Auto, Executive Package, Arctic Silver 98 E38 740I Steptronic, Silver

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Madrab Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 21-November-2003 Location: Scotland Status: Offline Points: 569	Post Options Post Reply Quote Madrab Report Post Thanks(0) Quote Reply Posted: 29-September-2006 at 13:56
	BB, Pretensioners are reactive tighteners of the belt in the case of a crash. Basically they tighten the seat belt around you when a crash occurs, that stops a person moving forward before the locking mechanism of the belt activates and also helps to avoid submarining. They are usually activated by a small gas piston that is tripped by sensors on the car, very like airbag's. Not sure how you identify if you have them, if you look up the spec of your car then they should be referenced as such. Cheers Rob
	1990 E3o 325i Touring and she's definately a she! Pain in the ass sometimes but goes like a bunny :oD

digweed Members Profile Send Private Message Find Members Posts Add to Buddy List Bavarian-Board Contributor I�m SOOO cut out for world domination!!! Joined: 21-February-2005 Location: Galway Status: Offline Points: 504	Post Options Post Reply Quote digweed Report Post Thanks(0) Quote Reply Posted: 29-September-2006 at 17:46
	if you can get a look at the the part where you clip the belt into and see down where its bolted to the floor a tube should be pointing towards the front of the car, this is where the charge is fired. it fires a piston aginst a cable which is anchored at one and and attached to the clip at the other, thus pulling it tight in the event of an accident. this is an example of what they look like here. D.
	Dermot O Rourke, used to be '99 520 black metallic Now '01 525 M-Sport, cosmos black, sports half leather seats, upgraded lights and a kick like a mule!!!