No experience myself but I was just reading about them the other day. Apparantly many of the front end bushings are toast after 100k KMs, also make sure the timing belt has been done if it has higher kilos on it as this is a huge job and very expensive if you cannot do it yourself.
Here's a review of this gen A4 if you haven't read it already from Canadiandriver.com
http://www.canadiandriver.com/articles/cc/02-05a4.htm
Here's a review of this gen A4 if you haven't read it already from Canadiandriver.com
http://www.canadiandriver.com/articles/cc/02-05a4.htm