I bought a 2002 Audi A6 Quattro 3.0 recently. I am looking for a good repair manual. I have seen 2 options, alldata.com or bently. What would you recommend? Also I am going to replace all of the vacuum lines, if someone has either manual would it be possible to get a copy of this repair? I see that some of the lines look like the will be difficult to replace without removing some parts.