Intermittent brake fault

[Richard van der Hoff]

Thanks for the suggestions, Mark. Will see what happens under ABS. No 
work done on the car lately.

Cheers

Richard


Mark Rosenkrantz wrote:
> Have you tired engaging ABS by braking hard to see if that kicks on the 
> warning?  Red means some sensor input is out of bound and the computer 
> "sees" a problem and/or can't calculate a solution to the inputs.  With 
> a red indication, ABS, traction control, and ESP (which I know you don't 
> have) are all disengaged.
>  
> Have you had any work done recently that would've aligned the car 
> (steering wheel position calibration) or taken the center console apart 
> (yaw sensor)?
>  
> If you can't force the red indication, have no suspects due to other 
> maintenance, and the computer has no codes stored... best advice I can 
> give is to wait until it gets worse.  It could be a lot of things, 
> including ABS module itself.
>  
> Mark Rosenkrantz
> 
> On Sat, Nov 27, 2010 at 12:56 PM, Richard van der Hoff 
> <quattro at rvanderhoff.org.uk <mailto: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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