has anyone swapped....[dead bomb]

[tmb]

> Pressure warning switch on the hydraulic servo
> as the cause of the autocheck light flashing?
>
http://www.sjmautotechnik.com/trouble_shooting/brakeTSB47_92_2.html

i'll be checking that in a few minutes, thanks!
 
> In this case it could be a bad switch, or even
> a bad pump in the central
> hydraulic system.  As I recall there is a
> filter in one of the lines that
> can get clogged if the fluid hasn't been
> changed out in a long time.

the brakes were bled about 300km ago, so the
fluid is fresh and waiting to suck up some
moisture.

the pump is a used unit from a 5000 that made a
stop in the local boneyard.  it doesn't leak at
all, surprisingly.  initially i was a little
concerned about the interchangability between the
5000 and 200 hydraulic pumps because one of the
pipes going into the pump is different between
either car.  i'm not too concerned about that
anymore.  no leaks means no problem.
 
> Also, how about a faulty warning switch on the
> brake fluid reservoir cap?

heh.  just took a look at the underside of the
reservoir cap and there's no level sensor there. 
time to find a replacement.  hopefully that'll be
the quick fix one always hopes for.
 
> These are just off the top of my head, I hope
> they help.  I can look up the
> testing procedure for the pressure switch on
> the servo. in the Bentley.
> That would neatly explain why you still have
> bomb function but a warning
> light while the car is running.  If the brake
> servo itself has gone south,
> expect to spend at least $250.  Ouch.

ugh.  yeah, the less money i spend on it, the
better.  i know that it's just a matter of time
before the fuel lines/fuel tank/brake lines to
give out.  that's going to be huge dinero and
time.

> As far as the "sponginess" is concerned, I
> would do a full brake-fluid flush
> and pressure bleed with nice, new clean brake
> fluid.

i think that the first thing i should be doing is
finding someone else with a 100/200/5000, and
driving their car.  that'll probably give me a
better idea of what the pedal feel should be
like.

jason
tmb

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com