Re: <E28> ABS question

["Allan Williams" <allanw@xxxxxxxxxx>]

Hmmm... it sounds like they are prolly sliding a bit too much. You don't
normally get a whole lot of smoke - unless your tyres are the smoky kind :-)

Does the ABS light come on before you start the car? or when the ABS is
activated - (I'm not sure if this should happen)

I'd find a grass paddock or inner city playground (did I just say that out
loud?) and test them on the grass (wet is good) or some loose gravel (low
speed to avoid too many chips.)

they should lock almost instantly on the gravel, and you'll stop fast if the
ABS isn't working. If it is working your stopping distance will increase,
but the wheels will not lock fully (The car will pull up almost perfectly
straight)

You can also pull the ABS relay and then trythe same thing.

GOOD LUCK! :-)

Allan :-)
http://www.geocities.com/motorcity/downs/9040/
"How do I set my laser printer on stun?"
- ----------------------------------->

- ----- Original Message -----
From: Patrick Burns <patrick@domain.elided>
To: <bmw@domain.elided>
Sent: Wednesday, January 19, 2000 7:20 PM
Subject: Re: <E28> ABS question


> Allan Williams wrote:
> >
> > Do they lock up fully? or do they just skid a bit?
>
> Well, I didn't have anyone watching from outside the car, so I can't say
for
> _certain_ if they locked up 100% or were just turning very slowly, but my
> intent was to test the ABS, so I really laid into the brakes and didn't
let
> off when I initially heard/felt the tires slide. The car left ~20 feet of
> rubber on the road before I finally let off, not wanting to flat spot my
> tires. There was a fair bit of tire smoke too. I never felt the pedal
pulse
> which I'd expect to feel if the ABS engaged. I started braking ~45mph,
FWIW.
>
> Did BMW use 2, 3, or 4 channel ABS on this car ('86 528e)?
>
>

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