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Car Forum / BMW Cars / April 2004

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Can airbag steering wheel be retrofitted to 89 3 series car?

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BOEING377 - 26 Apr 2004 19:19 GMT
A friend has a nice 89 BMW 3 series car, but it has no airbag.  Can an airbag
equipped steering wheel from a slighly later model be succesfully retrofitted?
Thanks for any info.
Jeff Strickland - 26 Apr 2004 20:07 GMT
The wheel can be made to fit, but making the airbag deploy is another
matter.

Physically installing the wheel should not be that big of a deal. Making the
airbag actually work is probably an insurmountable hurdle. You need the
sensors that detect the rapid decelleration. You need the interconnecting
wiring. I am not sure what all will be needed, but my initial instinct is
that you can not do this very cheaply. It is probably cheaper to trade the
car in than to retrofit it. Obviously, the trade in will be from a similar
year as you are looking at for donor parts.

> A friend has a nice 89 BMW 3 series car, but it has no airbag.  Can an airbag
> equipped steering wheel from a slighly later model be succesfully retrofitted?
> Thanks for any info.
C.R. Krieger - 27 Apr 2004 16:03 GMT
> A friend has a nice 89 BMW 3 series car, but it has no airbag.  Can an airbag
> equipped steering wheel from a slighly later model be succesfully retrofitted?
> Thanks for any info.

Your friend is an idiot.  Spend the money it would take to do this
properly and *learn to drive* instead of *planning to crash*!

Join BMW CCA at www.bmwcca.org and enroll in a handful of club driving
schools.  If, after taking at least three of them, your friend hasn't
saved his/her insurance deductible at least once as a result of
something he/she learned from us, lunch is on me.
--
C.R. Krieger
(Been there; done that)
BOEING377 - 27 Apr 2004 23:26 GMT
>Can an airbag
>> equipped steering wheel from a slighly later model be succesfully
[quoted text clipped - 11 lines]
>C.R. Krieger
>(Been there; done that)

Is a skydiver an idiot for carrying a reserve chute?  Sometimes bad things
happen to highly skilled people and they need a little help from hardware.
C.R. Krieger - 28 Apr 2004 17:26 GMT
> >Can an airbag
> >> equipped steering wheel from a slighly later model be succesfully
[quoted text clipped - 14 lines]
> Is a skydiver an idiot for carrying a reserve chute?  Sometimes bad things
> happen to highly skilled people and they need a little help from hardware.

No, you don't need extra help from the hardware.  It's already there.
Far too many people are under the impression that if you bend your
sheetmetal, you'll be seriously injured as well.  That's simply not
the case.  Even old BMWs like the E30 (and the E28 I drive) have
excellent body integrity and occupant crash protection.  All you gotta
do is *wear the belts* they provided and an airbag becomes a u$ele$$
and expen$ive explo$ive in the middle of your steering wheel.

You're talking about a skydiver carrying an extra Cessna ...
--
C.R. Krieger
(Been there; done that)
Roberts Realty Enterprises - 28 Apr 2004 05:20 GMT
> A friend has a nice 89 BMW 3 series car, but it has no airbag.  Can an airbag
> equipped steering wheel from a slighly later model be succesfully retrofitted?
> Thanks for any info.

It is a good idea, but unfortunately this would be quite expensive
because professional installation is a must, and the cost would be
prohibitive.  Don't work on an airbag yourself.
Jack Baruth - 28 Apr 2004 15:07 GMT
>> A friend has a nice 89 BMW 3 series car, but it has no airbag.  Can an airbag
>> equipped steering wheel from a slighly later model be succesfully retrofitted?
[quoted text clipped - 3 lines]
> because professional installation is a must, and the cost would be
> prohibitive.  Don't work on an airbag yourself.

Not to state too much of the obvious here, but an airbag wheel is
not all you need to equip a car with bags. You at the least need:

1) the wheel
2) the controller module
3) redundant crash sensors
4) all the wiring

Most of all you need to crash a couple cars to find out when the airbag
should go off! Airbag timing is a delicately calculated thing and is
different for each car.

I suppose you could craft an all-in-one airbag module that contains
a g-sensor and triggering system, but at that point you are going
through a lot of hassle to point an explosive charge at your face.
Five-point belts would be cheaper and probably do more for you.
Somebody - 28 Apr 2004 16:00 GMT
> >> A friend has a nice 89 BMW 3 series car, but it has no airbag.  Can an airbag
> >> equipped steering wheel from a slighly later model be succesfully retrofitted?
> >> Thanks for any info.

I wonder does he just want a new wheel or the airbag?   Because the wheel
will fit.

But retrofitting the airbag is, as everyone has pointed out, not a good
plan.

-Russ.
Roberts Realty Enterprises - 29 Apr 2004 00:39 GMT
> > > boeing377@aol.com (BOEING377) wrote in message
>  news:<20040426141923.19095.00000311@mb-m21.aol.com>...
[quoted text clipped - 9 lines]
> But retrofitting the airbag is, as everyone has pointed out, not a good
> plan.

Nope, not at all.  If the intention is simply a different steering
wheel, non-airbag equipped accessory wheels are a nice idea and much
cheaper than airbag wheels.  Ebay might have a few used ones.
 
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