Hi,
the video shows you how to diagnose and how to replace the ignition starter switch at a Passat 35i. For this repair the steering wheel, the lock and the reduction sleeve on the steering column has to be removed. Especially pulling the reduction sleeve might be a problem. The video gives you a step by step instruction for this repair:
http://www.youtube.com/watch?v=mfYklmph07k
The video has a German soundtrack but English subtitles are available at YouTube. If you don't see them by default, watch the video directly at YouTube and press the subtitle button below the video frame.
Enjoy it,
Jürgen