[steamship]

I can't remember what issues you've posted previously about the car, but have you come across the following thread? It only mentions the 034 error, but worth a read in case it may shed some light on the situation:

https://forums.ross-tech.com/index.php?threads/33550/

If nothing else, part of that thread will also inform you of what will happen if you take it to Audi. They will throw parts at it (at your expense) until the issue is resolved/or not. Could your solution be as simple as what the OP say in the penultimate paragraph of the last post!

I was going to suggest looking for other forum members with D4s on here and sending them a PM, but unfortunately the forum isn't sending out notification emails any more, so unless they're on the site, they won't see it.

Are you on Facebook, and are you on the A8 & S8 UK Owners Group? There may be other UK focussed groups for D4s, and you may find someone local to do a comparison with.