Hi, thanks for shopping with www.TunerTools.com and thanks for your inquiry about this ALDL cable. Unfortunately, these are designed specifically for GM model cars from the late 80's up through 1995. The only non-GM cars I have ever seen them work with are those that used a full GM OBD1 / ALDL computer system, such as the Lotus Elise of those years. I don't think there is any chance at all these will work with anything built by VW as they tended to use completely different technology.
Sorry we couldn't be of more help.