REPLACING REAR BUMPER AIRBAG SENSORS?????????
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Thread: REPLACING REAR BUMPER AIRBAG SENSORS?????????

  1. #1
    FRESHMAN ROVER
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    REPLACING REAR BUMPER AIRBAG SENSORS?????????

    i have just brought a colour coded bumper for my 96 dse rangie as my original has warped. i read the articule on replacing the rear bumper on this site but didnt see any mention of airbag sensors.is there any on the rear bumper that could effect the srs system that i need to worry about or is it a straight forwad swap(well as straight forwad as not having to mess with any sensors!)

    thanxs

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  3. #2
    FORUM MODERATOR RRToadHall's Avatar
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    I'm not sure about UK delivery models, but US models have no rear crash sensors.
    When dealing with yourself, act with your brain
    When dealing others, act with your heart.

  4. #3
    vaz
    vaz is offline
    FRESHMAN ROVER
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    As rrtoadhall states, US models don't have rear crash sensors.
    I never found any on my 1995 SE either. The only ones I know of are at the front.
    Even these don't have any physical contact with the front bumper, so swap away with no worries.
    Steven.
    Range Rover 2.5 DHSE Auto.

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  6. #4
    LIFETIME CONTRIBUTOR
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    I've never heard of rear airbag sensors on a car. I can't imagine you'd want the airbags going off in a rear end collision.

    But then, I haven't kept up with technology.

    Or are you confusing rear airbag sensors with the sensors which trigger the rear airbags (some cars have air bags for rear seat passengers)?

    Ron
    Ron Beckett
    2004 L322 Range Rover Vogue 4.4 Auto

  7. #5
    FRESHMAN ROVER
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    Bumper

    I can confirm there are no sensors on the bumper, I removed mine recently from a UK 1996 2.5DT to fit a towbar and apply rustproofing, and found nothing but dirt, cobwebs and rust.
    1996 LR P38 2.5DT poverty spec
    1985 LR 110" 300tdi hybrid
    1991 Yamaha XJ900 ratbike

  8. #6
    FRESHMAN ROVER
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    Usually the SRS system is incorporated into two crash (deceleration) sensors at the front of the vehicle and these chat constantly with the airbag module in the dash. This system monitors the forces being exerted on the vehicle and asks the sensors 200 times per second if an airbag firing is necessary. SRS airbags are triggered by rapid deceleration above a certain threshold (usually 15 mph). A rear-end collision is a rapid acceleration so unless you get rear-ended and gain enough speed to hit the vehicle in front of you with force enough to inflate the airbags, they should not go off in a rear-end smack.

    Newer cars take all sorts of things into account before firing the airbags. They determine your speed, how quickly you hit or get hit, whether you're wearing a seatbelt or not, where your seat is positioned, etc to determine whether to fire the airbag and if so, at what speed (reduced or full). I'm sure that's more than you've ever wanted but my enlightenment is free.

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