Question on Safety Belt Pretensioners
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Category: Technical & Model Specific Forums
Forum Name: General Motors
Forum Discription: This forum will deal with technical issues for the cars not dealt with in the other forums. These don't need to be BMWs!
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=33550
Printed Date: 23-September-2024 at 14:31
Topic: Question on Safety Belt Pretensioners
Posted By: BeemaBoy
Subject: Question on Safety Belt Pretensioners
Date Posted: 28-September-2006 at 15:12
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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 |
Replies:
Posted By: Madrab
Date Posted: 29-September-2006 at 13:56
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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 |
Posted By: digweed
Date Posted: 29-September-2006 at 17:46
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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 http://cgi.ebay.co.uk/ford-escort-seatbelt-pretensioners-mk7-pair_W0QQitemZ320030399818QQihZ011QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewItem - here. D.  http://cgi.ebay.co.uk/ford-escort-seatbelt-pretensioners-mk7-pair_W0QQitemZ320030399818QQihZ011QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewItem - ------------- 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!!! |