pump condition?

[Bob Rossato]

Don't know if the '91 200 20V is the same as the UrS6 in this regard, but
the brake light is shared with the power steering reservoir level.  I found
this when I was having the same problems with brake light coming on if I was
hard on the brakes or on high speed exit/entrance ramps.  Brake level was
fine but my power steering reservoir was low (leaking pump).  Filled it up
and the brake light stopped complaining.  Just a shot, as you mentioned
everything else about the power steering system except whether the level was
OK.  Of course, given that you recently replaced one of the lines I would
think that you should be topped up, but....

Bob

> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> Behalf Of Brett Dikeman
> Sent: Wednesday, May 15, 2002 2:26 PM
> To: quattro at audifans.com
> Subject: pump condition?
>
>
> Gents,
>
> While test-driving the car, I realized that the brake light was
> coming on when it shouldn't be...a blink here and there after a lot
> of stop+go/steering.  Granted, the reservoir was right at the min
> line, so I filled it up to slightly below max, and same symptoms
> persist.
>
> This flickering business started the night before the hose let go.
>
> The bomb seems perfectly fine...I get about 40-50 full pedal presses
> before the pedal instantly goes rock hard.  If the bomb has been
> fully discharged, it takes about 18-20 seconds with the engine held
> at 2k rpm for the light to go out as it charges up the bomb again.
>
> Engine on, I can quickly "bounce" the brake pedal continuously and
> after a few seconds, the light comes on...then quickly goes out once
> I stop.
>
>    Steering assist has always been pretty poor since the day I bought
> the car, but I was used to a 5000 with skinnier tires at the
> time...probably has gotten worse over time, and the fatter tires
> installed a few months ago don't help.  My guess is that my pump
> isn't quite up to task in the volume/pressure department, but I
> wanted to hear what the list had to say.  I am using DTE-13M instead
> of Pentosin 11S, but the two have identical properties at room
> temperature or near it(all the above tests were done with the engine
> stone cold, so yes, the fluid was at about room temperature) and
> things are pretty much the same as when I had 11S.
>
> Belt does not seem to be slipping(it's hard for a one-man operation
> to twist the wheel and eyeball the belt)...but it is an almost brand
> new Conti belt.  Also, assist never goes completely dead nor "pulses"
> in and out, which is sort of a dead giveaway of belt slippage.
>
> Listers?
>
> Brett
> --
> ----
> "They that give up essential liberty to obtain temporary
> safety deserve neither liberty nor safety." - Ben Franklin
> http://www.users.cloud9.net/~brett/
>