[s-cars] Brake light stuck on!

[Kirby Smith]

E-brake sw is certainly a candidate, especially if you filled the brake
and pentosyn reservoirs.  My brake lite was recently doing the same
thing, and I found that the brake reservoir sensor could be switched
into either mode and not return, i.e., it didn't work as a float as
expected, it had a lot of hysteresis.  The solution was to add more
brake fluid until it was a bit above the bottom of the cup.

Your case, though, appears to not be intermittent, as mine was.  I would
bet on the brake sw.  Since I fixed mine another way, I can't tell you
where you can get to the wires to check it without tearing the console
out, or whatever is necessary to get to the sw.

kirby

Daniel Hussey wrote:
>
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> Hello to all...
>
> Well, sometime last week I went to release the emergency brake on my '94 Audi S4, and guess what, brake went off, but light stayed on.  Shook the e-brake a bit.  Engaged then dissengaged it... still light remains on, and has been on since then!
>
> All the fluids looked fine, but I topped up both the Pentosin (which I drained, cleaned the reservoir, and added fresh Pentosin to not long ago), and also the brake fluid with a little Castron GT-LMA.  Still, the light remains on.
>
> E-brake and all brake functions seem to be working fine.  In the manual it says it could also be due to too low hydraulic pressure in the brake system...  the Pentosin fluid looks good now and I get many stops when I kill the engine before pedal goes stiff, so I don't think it's the bomb.
>
> So, I am thinking it is either a fluid sensor or, as someone noted to me, my e-brake switch is broken and "stuck" on.
>
> Any ideas...  anyone else had this happen in thier S-cars?  How much is a new switch, if that is in fact what you think that is.
>
> Thanks,
> Dan
> '94 S4 (Black/ecru) ... For Sale
> '95 S6 Avant (Europa blue/ecru)
> North Bend, WA
>
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