Midlands regional Moderator
The A4-B5 Is a K line diagnostic, as such is not OBDII compliant (this was mad compulsory for petrols from 2001 and diesels from 2004). I also have an ELM327 interface (though mine is USB) and this will only access to "P" codes (ie: generic engine) and the battery voltage, No other live data can be viewed, and thats after forcing connection on partial support... AFAIK Unfortunately vag Com is the only "proper" tool that will give you the live data + ecu acess on the B5 (and some Hand held units like Omiscan/MTpro/etc at £2k+).
Hope this helps
Currently rolling in a SKODA!!!