Dougga wrote:

> I have a 2000 A6 Quattro and am finding a correlation between the
> weather and the functioning of my car. Currently, I am getting the
> following errors: ABS - Brake - Check Engine/ The ABS and Brake
> lites come on and occasionally go off again. The Check Engine seems to
> come on and stays on. I went by my local mechanic and he reset the
> check engine lite once noting that I apparently had the following
> faults"
> 1. Vacuum loss in fuel system
> 2. Two separate faults in Oxygen sensors 3. Brake module bad
>
> This mechanic handed me a $2000+ estimate and told me that Audi's
> frequently commit electronic sepuku. [his words] I'm a bit more
> skeptical of him than I am of Audi.
>
> I highly doubt that all of these came into play simultaneously without
> lightening striking so I'm suspecting computer problems.
>
> Note: the car was in a mild collision over the summer and the rear left
> fender was bent slightly... some possibility of water getting in back
> there.
>
> Any thoughts?

Your mechanic's estimate seems to be reasonable, the ABS module being the
most expensive of the group. A regular problem, I could build a small
hill with all the ABS modules I've had to replace over the years.