Could be a lot of things. Factory defect, type of oil used, change
interval, driving style could all be factors. I think most of us change
the oil more often than the lights tell us to. I probably change mine
twice for every light cycle. If you've had all the required service done
by the dealer I think you have a legitimate gripe with Audi.
> "Twohat" <firstname.lastname@example.org> wrote in message
>>Hi, just put my 2001 A6q 2.5tdi 180 sport in for service at 111k miles and
>>find it needs new camshafts - they have worn through the case hardening on
>>both exhaust camshafts. The car has been serviced in accordance with
>>instructions by an Audi dealer since new, and not been mistreated, so it
>>looks to me like a manufacturing defect.
>>Does anyone know anything about this or had any experience of camshafts
>>wearing out on this model?
> OK, I guess the absence of replies means it isn't a common fault then . . .
> Could it be the length of time between oil changes with the variable
> It has always been serviced when the computer says it is due.
> Worries me a bit what has happened to the metal which has been worn off the
> cams - could it be lurking in the big end shells wearing them out, or would
> the filter have caught it adequately?
> Anyone any thoughts?