Intermittent brake fault

[brian hoeft]

Sounds to me like the electronic half of the ABS module is on its way out. I
see it on a regular basis. Of course, you could be fortunate enough to find
a harness to clean or tighten the pins on, or purge the fluid via your OBD
port, but out of the dozens of bad ABS modules, I think I only came across 2
that had a bad hydraulik section, and one was from the guy pouring CHF11S in
his brake reservoir, HA!.

-Brian



.
On Sat, Nov 27, 2010 at 12:56 PM, Richard van der Hoff <
quattro at rvanderhoff.org.uk> wrote:

> Hi folks,
>
> Since we've been on the topic of intermittent fault indicators this
> week, here's another one:
>
> Patient is a 1999 (B5) S4. Three or four times lately the big flashing
> red brake fault indicator has come up on the driver information display.
> It flashes away for a few secods, and then stops. I've checked the fluid
> level (which seems to be fine) and have hooked up the VAG-COM (no stored
> codes), but haven't really looked much further (it's a bit cold to be
> poking around tbh...)
>
> The brakes seem fine, but obviously having the big red warning coming on
> is a bit worrying. Any suggestions as to things to check?
>
> Thanks
>
> Richard
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