Thanks for the tip on the book.
I will order one.
The car came with a paperback book with many detailed diagrams and great photos called: VOLKSWAGEN - Service - Repair Handbook (A Clymer Publication).
It is a treasure trove of technical information and follows the evolution of systems and engines over several years.
The book is a must-have over TWO MILLION SOLD.
Readily available used with greasy fingerprints, saving you the trouble.