One problem related to computer failure has been reported for the 1999 Volkswagen Passat. The most recently reported issues are listed below.
I got in my car one morning and started the abs lights and brake lights come on the instrument panel and has pretty much been on since and I have noticed without abs my car doesn't stop near as fast as it used to the dealer said it was the abs computer failed and the manufacture would have to send me anew one but that it was really pricy to fix and a group that I am with also drive the same cars a large number of them and there's has failed just like mine did.