Hi,
the video is a step by step tutorial how to replace the alternator on you Audi C4 with the 6 cylinder engine. In my case it has been sufficient to replace regulator of the alternator. This can be made on this engine only when the alternator is out of the car. The video explains also this repair in detail.
http://www.youtube.com/watch?v=REfefKbLZkw
The video has a German soundtrack, but English subtitles are available on YouTube. Just press the settings button below the frame and select them.
Greetings,
Jürgen