You want a software program called ETKA, which is what VW dealres use.
There are a few copies floating around out there. Maybe you could use
"ETKA" as a keyword to search the archives.

Chris

On 11/1/05, Michael Edwards <medwards1@triad.rr.com> wrote:
> Does anyone know of a source for a parts list for 86 - 91 vanagons?
> Preferably something with diagrams and part numbers similar to this.
> http://www.thethingshop.com/detail.asp?PRODUCT_ID=181PL
> Hard or soft copy is ok.
> I tried searching the archives, but "parts + list" returned mostly for sale
> posts.
> Thanks!
> Mike
>